diff options
Diffstat (limited to 'collectors/cgroups.plugin/sys_fs_cgroup.c')
| -rw-r--r-- | collectors/cgroups.plugin/sys_fs_cgroup.c | 4051 |
1 files changed, 4051 insertions, 0 deletions
diff --git a/collectors/cgroups.plugin/sys_fs_cgroup.c b/collectors/cgroups.plugin/sys_fs_cgroup.c new file mode 100644 index 0000000..df1f5f2 --- /dev/null +++ b/collectors/cgroups.plugin/sys_fs_cgroup.c @@ -0,0 +1,4051 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "sys_fs_cgroup.h" + +#define PLUGIN_CGROUPS_NAME "cgroups.plugin" +#define PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME "systemd" +#define PLUGIN_CGROUPS_MODULE_CGROUPS_NAME "/sys/fs/cgroup" + +// ---------------------------------------------------------------------------- +// cgroup globals + +static long system_page_size = 4096; // system will be queried via sysconf() in configuration() + +static int cgroup_enable_cpuacct_stat = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_cpuacct_usage = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_memory = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_detailed_memory = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_memory_failcnt = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_swap = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_blkio_io = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_blkio_ops = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_blkio_throttle_io = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_blkio_throttle_ops = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_blkio_merged_ops = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_blkio_queued_ops = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_pressure_cpu = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_pressure_io_some = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_pressure_io_full = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_pressure_memory_some = CONFIG_BOOLEAN_AUTO; +static int cgroup_enable_pressure_memory_full = CONFIG_BOOLEAN_AUTO; + +static int cgroup_enable_systemd_services = CONFIG_BOOLEAN_YES; +static int cgroup_enable_systemd_services_detailed_memory = CONFIG_BOOLEAN_NO; +static int cgroup_used_memory_without_cache = CONFIG_BOOLEAN_YES; + +static int cgroup_use_unified_cgroups = CONFIG_BOOLEAN_NO; +static int cgroup_unified_exist = CONFIG_BOOLEAN_AUTO; + +static int cgroup_search_in_devices = 1; + +static int cgroup_enable_new_cgroups_detected_at_runtime = 1; +static int cgroup_check_for_new_every = 10; +static int cgroup_update_every = 1; +static int cgroup_containers_chart_priority = NETDATA_CHART_PRIO_CGROUPS_CONTAINERS; + +static int cgroup_recheck_zero_blkio_every_iterations = 10; +static int cgroup_recheck_zero_mem_failcnt_every_iterations = 10; +static int cgroup_recheck_zero_mem_detailed_every_iterations = 10; + +static char *cgroup_cpuacct_base = NULL; +static char *cgroup_cpuset_base = NULL; +static char *cgroup_blkio_base = NULL; +static char *cgroup_memory_base = NULL; +static char *cgroup_devices_base = NULL; +static char *cgroup_unified_base = NULL; + +static int cgroup_root_count = 0; +static int cgroup_root_max = 1000; +static int cgroup_max_depth = 0; + +static SIMPLE_PATTERN *enabled_cgroup_patterns = NULL; +static SIMPLE_PATTERN *enabled_cgroup_paths = NULL; +static SIMPLE_PATTERN *enabled_cgroup_renames = NULL; +static SIMPLE_PATTERN *systemd_services_cgroups = NULL; + +static char *cgroups_rename_script = NULL; +static char *cgroups_network_interface_script = NULL; + +static int cgroups_check = 0; + +static uint32_t Read_hash = 0; +static uint32_t Write_hash = 0; +static uint32_t user_hash = 0; +static uint32_t system_hash = 0; + +enum cgroups_type { CGROUPS_AUTODETECT_FAIL, CGROUPS_V1, CGROUPS_V2 }; + +enum cgroups_systemd_setting { + SYSTEMD_CGROUP_ERR, + SYSTEMD_CGROUP_LEGACY, + SYSTEMD_CGROUP_HYBRID, + SYSTEMD_CGROUP_UNIFIED +}; + +struct cgroups_systemd_config_setting { + char *name; + enum cgroups_systemd_setting setting; +}; + +static struct cgroups_systemd_config_setting cgroups_systemd_options[] = { + { .name = "legacy", .setting = SYSTEMD_CGROUP_LEGACY }, + { .name = "hybrid", .setting = SYSTEMD_CGROUP_HYBRID }, + { .name = "unified", .setting = SYSTEMD_CGROUP_UNIFIED }, + { .name = NULL, .setting = SYSTEMD_CGROUP_ERR }, +}; + +/* on Fed systemd is not in PATH for some reason */ +#define SYSTEMD_CMD_RHEL "/usr/lib/systemd/systemd --version" +#define SYSTEMD_HIERARCHY_STRING "default-hierarchy=" + +#define MAXSIZE_PROC_CMDLINE 4096 +static enum cgroups_systemd_setting cgroups_detect_systemd(const char *exec) +{ + pid_t command_pid; + enum cgroups_systemd_setting retval = SYSTEMD_CGROUP_ERR; + char buf[MAXSIZE_PROC_CMDLINE]; + char *begin, *end; + + FILE *f = mypopen(exec, &command_pid); + + if (!f) + return retval; + + while (fgets(buf, MAXSIZE_PROC_CMDLINE, f) != NULL) { + if ((begin = strstr(buf, SYSTEMD_HIERARCHY_STRING))) { + end = begin = begin + strlen(SYSTEMD_HIERARCHY_STRING); + if (!*begin) + break; + while (isalpha(*end)) + end++; + *end = 0; + for (int i = 0; cgroups_systemd_options[i].name; i++) { + if (!strcmp(begin, cgroups_systemd_options[i].name)) { + retval = cgroups_systemd_options[i].setting; + break; + } + } + break; + } + } + + if (mypclose(f, command_pid)) + return SYSTEMD_CGROUP_ERR; + + return retval; +} + +static enum cgroups_type cgroups_try_detect_version() +{ + pid_t command_pid; + char buf[MAXSIZE_PROC_CMDLINE]; + enum cgroups_systemd_setting systemd_setting; + int cgroups2_available = 0; + + // 1. check if cgroups2 availible on system at all + FILE *f = mypopen("grep cgroup /proc/filesystems", &command_pid); + if (!f) { + error("popen failed"); + return CGROUPS_AUTODETECT_FAIL; + } + while (fgets(buf, MAXSIZE_PROC_CMDLINE, f) != NULL) { + if (strstr(buf, "cgroup2")) { + cgroups2_available = 1; + break; + } + } + if(mypclose(f, command_pid)) + return CGROUPS_AUTODETECT_FAIL; + + if(!cgroups2_available) + return CGROUPS_V1; + + // 2. check systemd compiletime setting + if ((systemd_setting = cgroups_detect_systemd("systemd --version")) == SYSTEMD_CGROUP_ERR) + systemd_setting = cgroups_detect_systemd(SYSTEMD_CMD_RHEL); + + if(systemd_setting == SYSTEMD_CGROUP_ERR) + return CGROUPS_AUTODETECT_FAIL; + + if(systemd_setting == SYSTEMD_CGROUP_LEGACY || systemd_setting == SYSTEMD_CGROUP_HYBRID) { + // curently we prefer V1 if HYBRID is set as it seems to be more feature complete + // in the future we might want to continue here if SYSTEMD_CGROUP_HYBRID + // and go ahead with V2 + return CGROUPS_V1; + } + + // 3. if we are unified as on Fedora (default cgroups2 only mode) + // check kernel command line flag that can override that setting + f = fopen("/proc/cmdline", "r"); + if (!f) { + error("Error reading kernel boot commandline parameters"); + return CGROUPS_AUTODETECT_FAIL; + } + + if (!fgets(buf, MAXSIZE_PROC_CMDLINE, f)) { + error("couldn't read all cmdline params into buffer"); + fclose(f); + return CGROUPS_AUTODETECT_FAIL; + } + + fclose(f); + + if (strstr(buf, "systemd.unified_cgroup_hierarchy=0")) { + info("cgroups v2 (unified cgroups) is available but are disabled on this system."); + return CGROUPS_V1; + } + return CGROUPS_V2; +} + +void read_cgroup_plugin_configuration() { + system_page_size = sysconf(_SC_PAGESIZE); + + Read_hash = simple_hash("Read"); + Write_hash = simple_hash("Write"); + user_hash = simple_hash("user"); + system_hash = simple_hash("system"); + + cgroup_update_every = (int)config_get_number("plugin:cgroups", "update every", localhost->rrd_update_every); + if(cgroup_update_every < localhost->rrd_update_every) + cgroup_update_every = localhost->rrd_update_every; + + cgroup_check_for_new_every = (int)config_get_number("plugin:cgroups", "check for new cgroups every", (long long)cgroup_check_for_new_every * (long long)cgroup_update_every); + if(cgroup_check_for_new_every < cgroup_update_every) + cgroup_check_for_new_every = cgroup_update_every; + + cgroup_use_unified_cgroups = config_get_boolean_ondemand("plugin:cgroups", "use unified cgroups", CONFIG_BOOLEAN_AUTO); + if(cgroup_use_unified_cgroups == CONFIG_BOOLEAN_AUTO) + cgroup_use_unified_cgroups = (cgroups_try_detect_version() == CGROUPS_V2); + + info("use unified cgroups %s", cgroup_use_unified_cgroups ? "true" : "false"); + + cgroup_containers_chart_priority = (int)config_get_number("plugin:cgroups", "containers priority", cgroup_containers_chart_priority); + if(cgroup_containers_chart_priority < 1) + cgroup_containers_chart_priority = NETDATA_CHART_PRIO_CGROUPS_CONTAINERS; + + cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat (total CPU)", cgroup_enable_cpuacct_stat); + cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage (per core CPU)", cgroup_enable_cpuacct_usage); + + cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory (used mem including cache)", cgroup_enable_memory); + cgroup_enable_detailed_memory = config_get_boolean_ondemand("plugin:cgroups", "enable detailed memory", cgroup_enable_detailed_memory); + cgroup_enable_memory_failcnt = config_get_boolean_ondemand("plugin:cgroups", "enable memory limits fail count", cgroup_enable_memory_failcnt); + cgroup_enable_swap = config_get_boolean_ondemand("plugin:cgroups", "enable swap memory", cgroup_enable_swap); + + cgroup_enable_blkio_io = config_get_boolean_ondemand("plugin:cgroups", "enable blkio bandwidth", cgroup_enable_blkio_io); + cgroup_enable_blkio_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio operations", cgroup_enable_blkio_ops); + cgroup_enable_blkio_throttle_io = config_get_boolean_ondemand("plugin:cgroups", "enable blkio throttle bandwidth", cgroup_enable_blkio_throttle_io); + cgroup_enable_blkio_throttle_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio throttle operations", cgroup_enable_blkio_throttle_ops); + cgroup_enable_blkio_queued_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio queued operations", cgroup_enable_blkio_queued_ops); + cgroup_enable_blkio_merged_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio merged operations", cgroup_enable_blkio_merged_ops); + + cgroup_enable_pressure_cpu = config_get_boolean_ondemand("plugin:cgroups", "enable cpu pressure", cgroup_enable_pressure_cpu); + cgroup_enable_pressure_io_some = config_get_boolean_ondemand("plugin:cgroups", "enable io some pressure", cgroup_enable_pressure_io_some); + cgroup_enable_pressure_io_full = config_get_boolean_ondemand("plugin:cgroups", "enable io full pressure", cgroup_enable_pressure_io_full); + cgroup_enable_pressure_memory_some = config_get_boolean_ondemand("plugin:cgroups", "enable memory some pressure", cgroup_enable_pressure_memory_some); + cgroup_enable_pressure_memory_full = config_get_boolean_ondemand("plugin:cgroups", "enable memory full pressure", cgroup_enable_pressure_memory_full); + + cgroup_recheck_zero_blkio_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero blkio every iterations", cgroup_recheck_zero_blkio_every_iterations); + cgroup_recheck_zero_mem_failcnt_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero memory failcnt every iterations", cgroup_recheck_zero_mem_failcnt_every_iterations); + cgroup_recheck_zero_mem_detailed_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero detailed memory every iterations", cgroup_recheck_zero_mem_detailed_every_iterations); + + cgroup_enable_systemd_services = config_get_boolean("plugin:cgroups", "enable systemd services", cgroup_enable_systemd_services); + cgroup_enable_systemd_services_detailed_memory = config_get_boolean("plugin:cgroups", "enable systemd services detailed memory", cgroup_enable_systemd_services_detailed_memory); + cgroup_used_memory_without_cache = config_get_boolean("plugin:cgroups", "report used memory without cache", cgroup_used_memory_without_cache); + + char filename[FILENAME_MAX + 1], *s; + struct mountinfo *mi, *root = mountinfo_read(0); + if(!cgroup_use_unified_cgroups) { + // cgroup v1 does not have pressure metrics + cgroup_enable_pressure_cpu = + cgroup_enable_pressure_io_some = + cgroup_enable_pressure_io_full = + cgroup_enable_pressure_memory_some = + cgroup_enable_pressure_memory_full = CONFIG_BOOLEAN_NO; + + mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct"); + if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct"); + if(!mi) { + error("CGROUP: cannot find cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct"); + s = "/sys/fs/cgroup/cpuacct"; + } + else s = mi->mount_point; + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); + cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename); + + mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuset"); + if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuset"); + if(!mi) { + error("CGROUP: cannot find cpuset mountinfo. Assuming default: /sys/fs/cgroup/cpuset"); + s = "/sys/fs/cgroup/cpuset"; + } + else s = mi->mount_point; + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); + cgroup_cpuset_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuset", filename); + + mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio"); + if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio"); + if(!mi) { + error("CGROUP: cannot find blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio"); + s = "/sys/fs/cgroup/blkio"; + } + else s = mi->mount_point; + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); + cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename); + + mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory"); + if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory"); + if(!mi) { + error("CGROUP: cannot find memory mountinfo. Assuming default: /sys/fs/cgroup/memory"); + s = "/sys/fs/cgroup/memory"; + } + else s = mi->mount_point; + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); + cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename); + + mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "devices"); + if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "devices"); + if(!mi) { + error("CGROUP: cannot find devices mountinfo. Assuming default: /sys/fs/cgroup/devices"); + s = "/sys/fs/cgroup/devices"; + } + else s = mi->mount_point; + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); + cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename); + } + else { + //cgroup_enable_cpuacct_stat = + cgroup_enable_cpuacct_usage = + //cgroup_enable_memory = + //cgroup_enable_detailed_memory = + cgroup_enable_memory_failcnt = + //cgroup_enable_swap = + //cgroup_enable_blkio_io = + //cgroup_enable_blkio_ops = + cgroup_enable_blkio_throttle_io = + cgroup_enable_blkio_throttle_ops = + cgroup_enable_blkio_merged_ops = + cgroup_enable_blkio_queued_ops = CONFIG_BOOLEAN_NO; + cgroup_search_in_devices = 0; + cgroup_enable_systemd_services_detailed_memory = CONFIG_BOOLEAN_NO; + cgroup_used_memory_without_cache = CONFIG_BOOLEAN_NO; //unified cgroups use different values + + //TODO: can there be more than 1 cgroup2 mount point? + mi = mountinfo_find_by_filesystem_super_option(root, "cgroup2", "rw"); //there is no cgroup2 specific super option - for now use 'rw' option + if(mi) debug(D_CGROUP, "found unified cgroup root using super options, with path: '%s'", mi->mount_point); + if(!mi) { + mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup2", "cgroup"); + if(mi) debug(D_CGROUP, "found unified cgroup root using mountsource info, with path: '%s'", mi->mount_point); + } + if(!mi) { + error("CGROUP: cannot find cgroup2 mountinfo. Assuming default: /sys/fs/cgroup"); + s = "/sys/fs/cgroup"; + } + else s = mi->mount_point; + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); + cgroup_unified_base = config_get("plugin:cgroups", "path to unified cgroups", filename); + debug(D_CGROUP, "using cgroup root: '%s'", cgroup_unified_base); + } + + cgroup_root_max = (int)config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max); + cgroup_max_depth = (int)config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth); + + cgroup_enable_new_cgroups_detected_at_runtime = config_get_boolean("plugin:cgroups", "enable new cgroups detected at run time", cgroup_enable_new_cgroups_detected_at_runtime); + + enabled_cgroup_patterns = simple_pattern_create( + config_get("plugin:cgroups", "enable by default cgroups matching", + // ---------------------------------------------------------------- + + " !*/init.scope " // ignore init.scope + " !/system.slice/run-*.scope " // ignore system.slice/run-XXXX.scope + " *.scope " // we need all other *.scope for sure + + // ---------------------------------------------------------------- + + " /machine.slice/*.service " // #3367 systemd-nspawn + " /kubepods/pod*/* " // k8s containers + " /kubepods/*/pod*/* " // k8s containers + + // ---------------------------------------------------------------- + + " !/kubepods* " // all other k8s cgroups + " !*/vcpu* " // libvirtd adds these sub-cgroups + " !*/emulator " // libvirtd adds these sub-cgroups + " !*.mount " + " !*.partition " + " !*.service " + " !*.socket " + " !*.slice " + " !*.swap " + " !*.user " + " !/ " + " !/docker " + " !/libvirt " + " !/lxc " + " !/lxc/*/* " // #1397 #2649 + " !/lxc.monitor* " + " !/lxc.pivot " + " !/lxc.payload " + " !/machine " + " !/qemu " + " !/system " + " !/systemd " + " !/user " + " * " // enable anything else + ), NULL, SIMPLE_PATTERN_EXACT); + + enabled_cgroup_paths = simple_pattern_create( + config_get("plugin:cgroups", "search for cgroups in subpaths matching", + " !*/init.scope " // ignore init.scope + " !*-qemu " // #345 + " !*.libvirt-qemu " // #3010 + " !/init.scope " + " !/system " + " !/systemd " + " !/user " + " !/user.slice " + " !/lxc/*/* " // #2161 #2649 + " !/lxc.monitor " + " !/lxc.payload/*/* " + " !/lxc.payload.* " + " * " + ), NULL, SIMPLE_PATTERN_EXACT); + + snprintfz(filename, FILENAME_MAX, "%s/cgroup-name.sh", netdata_configured_primary_plugins_dir); + cgroups_rename_script = config_get("plugin:cgroups", "script to get cgroup names", filename); + + snprintfz(filename, FILENAME_MAX, "%s/cgroup-network", netdata_configured_primary_plugins_dir); + cgroups_network_interface_script = config_get("plugin:cgroups", "script to get cgroup network interfaces", filename); + + enabled_cgroup_renames = simple_pattern_create( + config_get("plugin:cgroups", "run script to rename cgroups matching", + " !/ " + " !*.mount " + " !*.socket " + " !*.partition " + " /machine.slice/*.service " // #3367 systemd-nspawn + " !*.service " + " !*.slice " + " !*.swap " + " !*.user " + " !init.scope " + " !*.scope/vcpu* " // libvirtd adds these sub-cgroups + " !*.scope/emulator " // libvirtd adds these sub-cgroups + " *.scope " + " *docker* " + " *lxc* " + " *qemu* " + " *kubepods* " // #3396 kubernetes + " *.libvirt-qemu " // #3010 + " * " + ), NULL, SIMPLE_PATTERN_EXACT); + + if(cgroup_enable_systemd_services) { + systemd_services_cgroups = simple_pattern_create( + config_get("plugin:cgroups", "cgroups to match as systemd services", + " !/system.slice/*/*.service " + " /system.slice/*.service " + ), NULL, SIMPLE_PATTERN_EXACT); + } + + mountinfo_free_all(root); +} + +// ---------------------------------------------------------------------------- +// cgroup objects + +struct blkio { + int updated; + int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO + int delay_counter; + + char *filename; + + unsigned long long Read; + unsigned long long Write; +/* + unsigned long long Sync; + unsigned long long Async; + unsigned long long Total; +*/ +}; + +// https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt +struct memory { + ARL_BASE *arl_base; + ARL_ENTRY *arl_dirty; + ARL_ENTRY *arl_swap; + + int updated_detailed; + int updated_usage_in_bytes; + int updated_msw_usage_in_bytes; + int updated_failcnt; + + int enabled_detailed; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO + int enabled_usage_in_bytes; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO + int enabled_msw_usage_in_bytes; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO + int enabled_failcnt; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO + + int delay_counter_detailed; + int delay_counter_failcnt; + + char *filename_detailed; + char *filename_usage_in_bytes; + char *filename_msw_usage_in_bytes; + char *filename_failcnt; + + int detailed_has_dirty; + int detailed_has_swap; + + // detailed metrics +/* + unsigned long long cache; + unsigned long long rss; + unsigned long long rss_huge; + unsigned long long mapped_file; + unsigned long long writeback; + unsigned long long dirty; + unsigned long long swap; + unsigned long long pgpgin; + unsigned long long pgpgout; + unsigned long long pgfault; + unsigned long long pgmajfault; + unsigned long long inactive_anon; + unsigned long long active_anon; + unsigned long long inactive_file; + unsigned long long active_file; + unsigned long long unevictable; + unsigned long long hierarchical_memory_limit; +*/ + //unified cgroups metrics + unsigned long long anon; + unsigned long long kernel_stack; + unsigned long long slab; + unsigned long long sock; + unsigned long long shmem; + unsigned long long anon_thp; + //unsigned long long file_writeback; + //unsigned long long file_dirty; + //unsigned long long file; + + unsigned long long total_cache; + unsigned long long total_rss; + unsigned long long total_rss_huge; + unsigned long long total_mapped_file; + unsigned long long total_writeback; + unsigned long long total_dirty; + unsigned long long total_swap; + unsigned long long total_pgpgin; + unsigned long long total_pgpgout; + unsigned long long total_pgfault; + unsigned long long total_pgmajfault; +/* + unsigned long long total_inactive_anon; + unsigned long long total_active_anon; + unsigned long long total_inactive_file; + unsigned long long total_active_file; + unsigned long long total_unevictable; +*/ + + // single file metrics + unsigned long long usage_in_bytes; + unsigned long long msw_usage_in_bytes; + unsigned long long failcnt; +}; + +// https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt +struct cpuacct_stat { + int updated; + int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO + + char *filename; + + unsigned long long user; + unsigned long long system; +}; + +// https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt +struct cpuacct_usage { + int updated; + int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO + + char *filename; + + unsigned int cpus; + unsigned long long *cpu_percpu; +}; + +struct cgroup_network_interface { + const char *host_device; + const char *container_device; + struct cgroup_network_interface *next; +}; + +#define CGROUP_OPTIONS_DISABLED_DUPLICATE 0x00000001 +#define CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE 0x00000002 +#define CGROUP_OPTIONS_IS_UNIFIED 0x00000004 + +// *** WARNING *** The fields are not thread safe. Take care of safe usage. +struct cgroup { + uint32_t options; + + char available; // found in the filesystem + char enabled; // enabled in the config + + char pending_renames; + + char *id; + uint32_t hash; + + char *chart_id; + uint32_t hash_chart; + + char *chart_title; + + struct label *chart_labels; + + struct cpuacct_stat cpuacct_stat; + struct cpuacct_usage cpuacct_usage; + + struct memory memory; + + struct blkio io_service_bytes; // bytes + struct blkio io_serviced; // operations + + struct blkio throttle_io_service_bytes; // bytes + struct blkio throttle_io_serviced; // operations + + struct blkio io_merged; // operations + struct blkio io_queued; // operations + + struct cgroup_network_interface *interfaces; + + struct pressure cpu_pressure; + struct pressure io_pressure; + struct pressure memory_pressure; + + // per cgroup charts + RRDSET *st_cpu; + RRDSET *st_cpu_limit; + RRDSET *st_cpu_per_core; + RRDSET *st_mem; + RRDSET *st_writeback; + RRDSET *st_mem_activity; + RRDSET *st_pgfaults; + RRDSET *st_mem_usage; + RRDSET *st_mem_usage_limit; + RRDSET *st_mem_failcnt; + RRDSET *st_io; + RRDSET *st_serviced_ops; + RRDSET *st_throttle_io; + RRDSET *st_throttle_serviced_ops; + RRDSET *st_queued_ops; + RRDSET *st_merged_ops; + + // per cgroup chart variables + char *filename_cpuset_cpus; + unsigned long long cpuset_cpus; + + char *filename_cpu_cfs_period; + unsigned long long cpu_cfs_period; + + char *filename_cpu_cfs_quota; + unsigned long long cpu_cfs_quota; + + RRDSETVAR *chart_var_cpu_limit; + calculated_number prev_cpu_usage; + + char *filename_memory_limit; + unsigned long long memory_limit; + RRDSETVAR *chart_var_memory_limit; + + char *filename_memoryswap_limit; + unsigned long long memoryswap_limit; + RRDSETVAR *chart_var_memoryswap_limit; + + // services + RRDDIM *rd_cpu; + RRDDIM *rd_mem_usage; + RRDDIM *rd_mem_failcnt; + RRDDIM *rd_swap_usage; + + RRDDIM *rd_mem_detailed_cache; + RRDDIM *rd_mem_detailed_rss; + RRDDIM *rd_mem_detailed_mapped; + RRDDIM *rd_mem_detailed_writeback; + RRDDIM *rd_mem_detailed_pgpgin; + RRDDIM *rd_mem_detailed_pgpgout; + RRDDIM *rd_mem_detailed_pgfault; + RRDDIM *rd_mem_detailed_pgmajfault; + + RRDDIM *rd_io_service_bytes_read; + RRDDIM *rd_io_serviced_read; + RRDDIM *rd_throttle_io_read; + RRDDIM *rd_throttle_io_serviced_read; + RRDDIM *rd_io_queued_read; + RRDDIM *rd_io_merged_read; + + RRDDIM *rd_io_service_bytes_write; + RRDDIM *rd_io_serviced_write; + RRDDIM *rd_throttle_io_write; + RRDDIM *rd_throttle_io_serviced_write; + RRDDIM *rd_io_queued_write; + RRDDIM *rd_io_merged_write; + + struct cgroup *next; + struct cgroup *discovered_next; + +} *cgroup_root = NULL; + +uv_mutex_t cgroup_root_mutex; + +struct cgroup *discovered_cgroup_root = NULL; + +struct discovery_thread { + uv_thread_t thread; + uv_mutex_t mutex; + uv_cond_t cond_var; + int start_discovery; + int exited; +} discovery_thread; + +// ---------------------------------------------------------------------------- +// read values from /sys + +static inline void cgroup_read_cpuacct_stat(struct cpuacct_stat *cp) { + static procfile *ff = NULL; + + if(likely(cp->filename)) { + ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) { + cp->updated = 0; + cgroups_check = 1; + return; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) { + cp->updated = 0; + cgroups_check = 1; + return; + } + + unsigned long i, lines = procfile_lines(ff); + + if(unlikely(lines < 1)) { + error("CGROUP: file '%s' should have 1+ lines.", cp->filename); + cp->updated = 0; + return; + } + + for(i = 0; i < lines ; i++) { + char *s = procfile_lineword(ff, i, 0); + uint32_t hash = simple_hash(s); + + if(unlikely(hash == user_hash && !strcmp(s, "user"))) + cp->user = str2ull(procfile_lineword(ff, i, 1)); + + else if(unlikely(hash == system_hash && !strcmp(s, "system"))) + cp->system = str2ull(procfile_lineword(ff, i, 1)); + } + + cp->updated = 1; + + if(unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO && + (cp->user || cp->system || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) + cp->enabled = CONFIG_BOOLEAN_YES; + } +} + +static inline void cgroup2_read_cpuacct_stat(struct cpuacct_stat *cp) { + static procfile *ff = NULL; + + if(likely(cp->filename)) { + ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) { + cp->updated = 0; + cgroups_check = 1; + return; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) { + cp->updated = 0; + cgroups_check = 1; + return; + } + + unsigned long lines = procfile_lines(ff); + + if(unlikely(lines < 3)) { + error("CGROUP: file '%s' should have 3+ lines.", cp->filename); + cp->updated = 0; + return; + } + + cp->user = str2ull(procfile_lineword(ff, 1, 1)); + cp->system = str2ull(procfile_lineword(ff, 2, 1)); + + cp->updated = 1; + + if(unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO && + (cp->user || cp->system || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) + cp->enabled = CONFIG_BOOLEAN_YES; + } +} + +static inline void cgroup_read_cpuacct_usage(struct cpuacct_usage *ca) { + static procfile *ff = NULL; + + if(likely(ca->filename)) { + ff = procfile_reopen(ff, ca->filename, NULL, PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) { + ca->updated = 0; + cgroups_check = 1; + return; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) { + ca->updated = 0; + cgroups_check = 1; + return; + } + + if(unlikely(procfile_lines(ff) < 1)) { + error("CGROUP: file '%s' should have 1+ lines but has %zu.", ca->filename, procfile_lines(ff)); + ca->updated = 0; + return; + } + + unsigned long i = procfile_linewords(ff, 0); + if(unlikely(i == 0)) { + ca->updated = 0; + return; + } + + // we may have 1 more CPU reported + while(i > 0) { + char *s = procfile_lineword(ff, 0, i - 1); + if(!*s) i--; + else break; + } + + if(unlikely(i != ca->cpus)) { + freez(ca->cpu_percpu); + ca->cpu_percpu = mallocz(sizeof(unsigned long long) * i); + ca->cpus = (unsigned int)i; + } + + unsigned long long total = 0; + for(i = 0; i < ca->cpus ;i++) { + unsigned long long n = str2ull(procfile_lineword(ff, 0, i)); + ca->cpu_percpu[i] = n; + total += n; + } + + ca->updated = 1; + + if(unlikely(ca->enabled == CONFIG_BOOLEAN_AUTO && + (total || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) + ca->enabled = CONFIG_BOOLEAN_YES; + } +} + +static inline void cgroup_read_blkio(struct blkio *io) { + if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO && io->delay_counter > 0)) { + io->delay_counter--; + return; + } + + if(likely(io->filename)) { + static procfile *ff = NULL; + + ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) { + io->updated = 0; + cgroups_check = 1; + return; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) { + io->updated = 0; + cgroups_check = 1; + return; + } + + unsigned long i, lines = procfile_lines(ff); + + if(unlikely(lines < 1)) { + error("CGROUP: file '%s' should have 1+ lines.", io->filename); + io->updated = 0; + return; + } + + io->Read = 0; + io->Write = 0; +/* + io->Sync = 0; + io->Async = 0; + io->Total = 0; +*/ + + for(i = 0; i < lines ; i++) { + char *s = procfile_lineword(ff, i, 1); + uint32_t hash = simple_hash(s); + + if(unlikely(hash == Read_hash && !strcmp(s, "Read"))) + io->Read += str2ull(procfile_lineword(ff, i, 2)); + + else if(unlikely(hash == Write_hash && !strcmp(s, "Write"))) + io->Write += str2ull(procfile_lineword(ff, i, 2)); + +/* + else if(unlikely(hash == Sync_hash && !strcmp(s, "Sync"))) + io->Sync += str2ull(procfile_lineword(ff, i, 2)); + + else if(unlikely(hash == Async_hash && !strcmp(s, "Async"))) + io->Async += str2ull(procfile_lineword(ff, i, 2)); + + else if(unlikely(hash == Total_hash && !strcmp(s, "Total"))) + io->Total += str2ull(procfile_lineword(ff, i, 2)); +*/ + } + + io->updated = 1; + + if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO)) { + if(unlikely(io->Read || io->Write || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) + io->enabled = CONFIG_BOOLEAN_YES; + else + io->delay_counter = cgroup_recheck_zero_blkio_every_iterations; + } + } +} + +static inline void cgroup2_read_blkio(struct blkio *io, unsigned int word_offset) { + if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO && io->delay_counter > 0)) { + io->delay_counter--; + return; + } + + if(likely(io->filename)) { + static procfile *ff = NULL; + + ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) { + io->updated = 0; + cgroups_check = 1; + return; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) { + io->updated = 0; + cgroups_check = 1; + return; + } + + unsigned long i, lines = procfile_lines(ff); + + if (unlikely(lines < 1)) { + error("CGROUP: file '%s' should have 1+ lines.", io->filename); + io->updated = 0; + return; + } + + io->Read = 0; + io->Write = 0; + + for (i = 0; i < lines; i++) { + io->Read += str2ull(procfile_lineword(ff, i, 2 + word_offset)); + io->Write += str2ull(procfile_lineword(ff, i, 4 + word_offset)); + } + + io->updated = 1; + + if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO)) { + if(unlikely(io->Read || io->Write || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) + io->enabled = CONFIG_BOOLEAN_YES; + else + io->delay_counter = cgroup_recheck_zero_blkio_every_iterations; + } + } +} + +static inline void cgroup2_read_pressure(struct pressure *res) { + static procfile *ff = NULL; + + if (likely(res->filename)) { + ff = procfile_reopen(ff, res->filename, " =", PROCFILE_FLAG_DEFAULT); + if (unlikely(!ff)) { + res->updated = 0; + cgroups_check = 1; + return; + } + + ff = procfile_readall(ff); + if (unlikely(!ff)) { + res->updated = 0; + cgroups_check = 1; + return; + } + + size_t lines = procfile_lines(ff); + if (lines < 1) { + error("CGROUP: file '%s' should have 1+ lines.", res->filename); + res->updated = 0; + return; + } + + res->some.value10 = strtod(procfile_lineword(ff, 0, 2), NULL); + res->some.value60 = strtod(procfile_lineword(ff, 0, 4), NULL); + res->some.value300 = strtod(procfile_lineword(ff, 0, 6), NULL); + + if (lines > 2) { + res->full.value10 = strtod(procfile_lineword(ff, 1, 2), NULL); + res->full.value60 = strtod(procfile_lineword(ff, 1, 4), NULL); + res->full.value300 = strtod(procfile_lineword(ff, 1, 6), NULL); + } + + res->updated = 1; + + if (unlikely(res->some.enabled == CONFIG_BOOLEAN_AUTO)) { + res->some.enabled = CONFIG_BOOLEAN_YES; + if (lines > 2) { + res->full.enabled = CONFIG_BOOLEAN_YES; + } else { + res->full.enabled = CONFIG_BOOLEAN_NO; + } + } + } +} + +static inline void cgroup_read_memory(struct memory *mem, char parent_cg_is_unified) { + static procfile *ff = NULL; + + // read detailed ram usage + if(likely(mem->filename_detailed)) { + if(unlikely(mem->enabled_detailed == CONFIG_BOOLEAN_AUTO && mem->delay_counter_detailed > 0)) { + mem->delay_counter_detailed--; + goto memory_next; + } + + ff = procfile_reopen(ff, mem->filename_detailed, NULL, PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) { + mem->updated_detailed = 0; + cgroups_check = 1; + goto memory_next; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) { + mem->updated_detailed = 0; + cgroups_check = 1; + goto memory_next; + } + + unsigned long i, lines = procfile_lines(ff); + + if(unlikely(lines < 1)) { + error("CGROUP: file '%s' should have 1+ lines.", mem->filename_detailed); + mem->updated_detailed = 0; + goto memory_next; + } + + + if(unlikely(!mem->arl_base)) { + if(parent_cg_is_unified == 0){ + mem->arl_base = arl_create("cgroup/memory", NULL, 60); + + arl_expect(mem->arl_base, "total_cache", &mem->total_cache); + arl_expect(mem->arl_base, "total_rss", &mem->total_rss); + arl_expect(mem->arl_base, "total_rss_huge", &mem->total_rss_huge); + arl_expect(mem->arl_base, "total_mapped_file", &mem->total_mapped_file); + arl_expect(mem->arl_base, "total_writeback", &mem->total_writeback); + mem->arl_dirty = arl_expect(mem->arl_base, "total_dirty", &mem->total_dirty); + mem->arl_swap = arl_expect(mem->arl_base, "total_swap", &mem->total_swap); + arl_expect(mem->arl_base, "total_pgpgin", &mem->total_pgpgin); + arl_expect(mem->arl_base, "total_pgpgout", &mem->total_pgpgout); + arl_expect(mem->arl_base, "total_pgfault", &mem->total_pgfault); + arl_expect(mem->arl_base, "total_pgmajfault", &mem->total_pgmajfault); + } else { + mem->arl_base = arl_create("cgroup/memory", NULL, 60); + + arl_expect(mem->arl_base, "anon", &mem->anon); + arl_expect(mem->arl_base, "kernel_stack", &mem->kernel_stack); + arl_expect(mem->arl_base, "slab", &mem->slab); + arl_expect(mem->arl_base, "sock", &mem->sock); + arl_expect(mem->arl_base, "anon_thp", &mem->anon_thp); + arl_expect(mem->arl_base, "file", &mem->total_mapped_file); + arl_expect(mem->arl_base, "file_writeback", &mem->total_writeback); + mem->arl_dirty = arl_expect(mem->arl_base, "file_dirty", &mem->total_dirty); + arl_expect(mem->arl_base, "pgfault", &mem->total_pgfault); + arl_expect(mem->arl_base, "pgmajfault", &mem->total_pgmajfault); + } + } + + arl_begin(mem->arl_base); + + for(i = 0; i < lines ; i++) { + if(arl_check(mem->arl_base, + procfile_lineword(ff, i, 0), + procfile_lineword(ff, i, 1))) break; + } + + if(unlikely(mem->arl_dirty->flags & ARL_ENTRY_FLAG_FOUND)) + mem->detailed_has_dirty = 1; + + if(unlikely(parent_cg_is_unified == 0 && mem->arl_swap->flags & ARL_ENTRY_FLAG_FOUND)) + mem->detailed_has_swap = 1; + + // fprintf(stderr, "READ: '%s', cache: %llu, rss: %llu, rss_huge: %llu, mapped_file: %llu, writeback: %llu, dirty: %llu, swap: %llu, pgpgin: %llu, pgpgout: %llu, pgfault: %llu, pgmajfault: %llu, inactive_anon: %llu, active_anon: %llu, inactive_file: %llu, active_file: %llu, unevictable: %llu, hierarchical_memory_limit: %llu, total_cache: %llu, total_rss: %llu, total_rss_huge: %llu, total_mapped_file: %llu, total_writeback: %llu, total_dirty: %llu, total_swap: %llu, total_pgpgin: %llu, total_pgpgout: %llu, total_pgfault: %llu, total_pgmajfault: %llu, total_inactive_anon: %llu, total_active_anon: %llu, total_inactive_file: %llu, total_active_file: %llu, total_unevictable: %llu\n", mem->filename, mem->cache, mem->rss, mem->rss_huge, mem->mapped_file, mem->writeback, mem->dirty, mem->swap, mem->pgpgin, mem->pgpgout, mem->pgfault, mem->pgmajfault, mem->inactive_anon, mem->active_anon, mem->inactive_file, mem->active_file, mem->unevictable, mem->hierarchical_memory_limit, mem->total_cache, mem->total_rss, mem->total_rss_huge, mem->total_mapped_file, mem->total_writeback, mem->total_dirty, mem->total_swap, mem->total_pgpgin, mem->total_pgpgout, mem->total_pgfault, mem->total_pgmajfault, mem->total_inactive_anon, mem->total_active_anon, mem->total_inactive_file, mem->total_active_file, mem->total_unevictable); + + mem->updated_detailed = 1; + + if(unlikely(mem->enabled_detailed == CONFIG_BOOLEAN_AUTO)) { + if(( (!parent_cg_is_unified) && ( mem->total_cache || mem->total_dirty || mem->total_rss || mem->total_rss_huge || mem->total_mapped_file || mem->total_writeback + || mem->total_swap || mem->total_pgpgin || mem->total_pgpgout || mem->total_pgfault || mem->total_pgmajfault)) + || (parent_cg_is_unified && ( mem->anon || mem->total_dirty || mem->kernel_stack || mem->slab || mem->sock || mem->total_writeback + || mem->anon_thp || mem->total_pgfault || mem->total_pgmajfault)) + || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES) + mem->enabled_detailed = CONFIG_BOOLEAN_YES; + else + mem->delay_counter_detailed = cgroup_recheck_zero_mem_detailed_every_iterations; + } + } + +memory_next: + + // read usage_in_bytes + if(likely(mem->filename_usage_in_bytes)) { + mem->updated_usage_in_bytes = !read_single_number_file(mem->filename_usage_in_bytes, &mem->usage_in_bytes); + if(unlikely(mem->updated_usage_in_bytes && mem->enabled_usage_in_bytes == CONFIG_BOOLEAN_AUTO && + (mem->usage_in_bytes || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) + mem->enabled_usage_in_bytes = CONFIG_BOOLEAN_YES; + } + + // read msw_usage_in_bytes + if(likely(mem->filename_msw_usage_in_bytes)) { + mem->updated_msw_usage_in_bytes = !read_single_number_file(mem->filename_msw_usage_in_bytes, &mem->msw_usage_in_bytes); + if(unlikely(mem->updated_msw_usage_in_bytes && mem->enabled_msw_usage_in_bytes == CONFIG_BOOLEAN_AUTO && + (mem->msw_usage_in_bytes || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES))) + mem->enabled_msw_usage_in_bytes = CONFIG_BOOLEAN_YES; + } + + // read failcnt + if(likely(mem->filename_failcnt)) { + if(unlikely(mem->enabled_failcnt == CONFIG_BOOLEAN_AUTO && mem->delay_counter_failcnt > 0)) { + mem->updated_failcnt = 0; + mem->delay_counter_failcnt--; + } + else { + mem->updated_failcnt = !read_single_number_file(mem->filename_failcnt, &mem->failcnt); + if(unlikely(mem->updated_failcnt && mem->enabled_failcnt == CONFIG_BOOLEAN_AUTO)) { + if(unlikely(mem->failcnt || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) + mem->enabled_failcnt = CONFIG_BOOLEAN_YES; + else + mem->delay_counter_failcnt = cgroup_recheck_zero_mem_failcnt_every_iterations; + } + } + } +} + +static inline void cgroup_read(struct cgroup *cg) { + debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id); + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + cgroup_read_cpuacct_stat(&cg->cpuacct_stat); + cgroup_read_cpuacct_usage(&cg->cpuacct_usage); + cgroup_read_memory(&cg->memory, 0); + cgroup_read_blkio(&cg->io_service_bytes); + cgroup_read_blkio(&cg->io_serviced); + cgroup_read_blkio(&cg->throttle_io_service_bytes); + cgroup_read_blkio(&cg->throttle_io_serviced); + cgroup_read_blkio(&cg->io_merged); + cgroup_read_blkio(&cg->io_queued); + } + else { + //TODO: io_service_bytes and io_serviced use same file merge into 1 function + cgroup2_read_blkio(&cg->io_service_bytes, 0); + cgroup2_read_blkio(&cg->io_serviced, 4); + cgroup2_read_cpuacct_stat(&cg->cpuacct_stat); + cgroup2_read_pressure(&cg->cpu_pressure); + cgroup2_read_pressure(&cg->io_pressure); + cgroup2_read_pressure(&cg->memory_pressure); + cgroup_read_memory(&cg->memory, 1); + } +} + +static inline void read_all_cgroups(struct cgroup *root) { + debug(D_CGROUP, "reading metrics for all cgroups"); + + struct cgroup *cg; + + for(cg = root; cg ; cg = cg->next) + if(cg->enabled && !cg->pending_renames) + cgroup_read(cg); +} + +// ---------------------------------------------------------------------------- +// cgroup network interfaces + +#define CGROUP_NETWORK_INTERFACE_MAX_LINE 2048 +static inline void read_cgroup_network_interfaces(struct cgroup *cg) { + debug(D_CGROUP, "looking for the network interfaces of cgroup '%s' with chart id '%s' and title '%s'", cg->id, cg->chart_id, cg->chart_title); + + pid_t cgroup_pid; + char command[CGROUP_NETWORK_INTERFACE_MAX_LINE + 1]; + + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + snprintfz(command, CGROUP_NETWORK_INTERFACE_MAX_LINE, "exec %s --cgroup '%s%s'", cgroups_network_interface_script, cgroup_cpuacct_base, cg->id); + } + else { + snprintfz(command, CGROUP_NETWORK_INTERFACE_MAX_LINE, "exec %s --cgroup '%s%s'", cgroups_network_interface_script, cgroup_unified_base, cg->id); + } + + debug(D_CGROUP, "executing command '%s' for cgroup '%s'", command, cg->id); + FILE *fp = mypopen(command, &cgroup_pid); + if(!fp) { + error("CGROUP: cannot popen(\"%s\", \"r\").", command); + return; + } + + char *s; + char buffer[CGROUP_NETWORK_INTERFACE_MAX_LINE + 1]; + while((s = fgets(buffer, CGROUP_NETWORK_INTERFACE_MAX_LINE, fp))) { + trim(s); + + if(*s && *s != '\n') { + char *t = s; + while(*t && *t != ' ') t++; + if(*t == ' ') { + *t = '\0'; + t++; + } + + if(!*s) { + error("CGROUP: empty host interface returned by script"); + continue; + } + + if(!*t) { + error("CGROUP: empty guest interface returned by script"); + continue; + } + + struct cgroup_network_interface *i = callocz(1, sizeof(struct cgroup_network_interface)); + i->host_device = strdupz(s); + i->container_device = strdupz(t); + i->next = cg->interfaces; + cg->interfaces = i; + + info("CGROUP: cgroup '%s' has network interface '%s' as '%s'", cg->id, i->host_device, i->container_device); + + // register a device rename to proc_net_dev.c + netdev_rename_device_add(i->host_device, i->container_device, cg->chart_id, cg->chart_labels); + } + } + + mypclose(fp, cgroup_pid); + // debug(D_CGROUP, "closed command for cgroup '%s'", cg->id); +} + +static inline void free_cgroup_network_interfaces(struct cgroup *cg) { + while(cg->interfaces) { + struct cgroup_network_interface *i = cg->interfaces; + cg->interfaces = i->next; + + // delete the registration of proc_net_dev rename + netdev_rename_device_del(i->host_device); + + freez((void *)i->host_device); + freez((void *)i->container_device); + freez((void *)i); + } +} + +// ---------------------------------------------------------------------------- +// add/remove/find cgroup objects + +#define CGROUP_CHARTID_LINE_MAX 1024 + +static inline char *cgroup_title_strdupz(const char *s) { + if(!s || !*s) s = "/"; + + if(*s == '/' && s[1] != '\0') s++; + + char *r = strdupz(s); + netdata_fix_chart_name(r); + + return r; +} + +static inline char *cgroup_chart_id_strdupz(const char *s) { + if(!s || !*s) s = "/"; + + if(*s == '/' && s[1] != '\0') s++; + + char *r = strdupz(s); + netdata_fix_chart_id(r); + + return r; +} + +char *parse_k8s_data(struct label **labels, char *data) +{ + char *name = mystrsep(&data, " "); + + if (!data) { + return name; + } + + while (data) { + char *key = mystrsep(&data, "="); + + char *value; + if (data && *data == ',') { + value = ""; + *data++ = '\0'; + } else { + value = mystrsep(&data, ","); + } + value = strip_double_quotes(value, 1); + + if (!key || *key == '\0' || !value || *value == '\0') + continue; + + *labels = add_label_to_list(*labels, key, value, LABEL_SOURCE_KUBERNETES); + } + + return name; +} + +static inline void cgroup_get_chart_name(struct cgroup *cg) { + debug(D_CGROUP, "looking for the name of cgroup '%s' with chart id '%s' and title '%s'", cg->id, cg->chart_id, cg->chart_title); + + pid_t cgroup_pid; + char command[CGROUP_CHARTID_LINE_MAX + 1]; + + snprintfz(command, CGROUP_CHARTID_LINE_MAX, "exec %s '%s'", cgroups_rename_script, cg->chart_id); + + debug(D_CGROUP, "executing command \"%s\" for cgroup '%s'", command, cg->chart_id); + FILE *fp = mypopen(command, &cgroup_pid); + if(fp) { + // debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", command, cg->id); + char buffer[CGROUP_CHARTID_LINE_MAX + 1]; + char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp); + // debug(D_CGROUP, "closing command for cgroup '%s'", cg->id); + int name_error = mypclose(fp, cgroup_pid); + // debug(D_CGROUP, "closed command for cgroup '%s'", cg->id); + + if(s && *s && *s != '\n') { + debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->chart_id, s); + + s = trim(s); + if (s) { + if(likely(name_error==0)) + cg->pending_renames = 0; + else if (unlikely(name_error==3)) { + debug(D_CGROUP, "cgroup '%s' disabled based due to rename command output", cg->chart_id); + cg->enabled = 0; + } + + if (likely(cg->pending_renames < 2)) { + char *name = s; + + if (!strncmp(s, "k8s_", 4)) { + free_label_list(cg->chart_labels); + name = parse_k8s_data(&cg->chart_labels, s); + } + + freez(cg->chart_title); + cg->chart_title = cgroup_title_strdupz(name); + + freez(cg->chart_id); + cg->chart_id = cgroup_chart_id_strdupz(name); + cg->hash_chart = simple_hash(cg->chart_id); + } + } + } + } + else + error("CGROUP: cannot popen(\"%s\", \"r\").", command); +} + +static inline struct cgroup *cgroup_add(const char *id) { + if(!id || !*id) id = "/"; + debug(D_CGROUP, "adding to list, cgroup with id '%s'", id); + + if(cgroup_root_count >= cgroup_root_max) { + info("CGROUP: maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id); + return NULL; + } + + int def = simple_pattern_matches(enabled_cgroup_patterns, id)?cgroup_enable_new_cgroups_detected_at_runtime:0; + struct cgroup *cg = callocz(1, sizeof(struct cgroup)); + + cg->id = strdupz(id); + cg->hash = simple_hash(cg->id); + + cg->chart_title = cgroup_title_strdupz(id); + + cg->chart_id = cgroup_chart_id_strdupz(id); + cg->hash_chart = simple_hash(cg->chart_id); + + if(cgroup_use_unified_cgroups) cg->options |= CGROUP_OPTIONS_IS_UNIFIED; + + if(!discovered_cgroup_root) + discovered_cgroup_root = cg; + else { + // append it + struct cgroup *e; + for(e = discovered_cgroup_root; e->discovered_next ;e = e->discovered_next) ; + e->discovered_next = cg; + } + + cgroup_root_count++; + + // fix the chart_id and title by calling the external script + if(simple_pattern_matches(enabled_cgroup_renames, cg->id)) { + + cg->pending_renames = 2; + cgroup_get_chart_name(cg); + + debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title); + } + else + debug(D_CGROUP, "cgroup '%s' will not be renamed - it matches the list of disabled cgroup renames (will be shown as '%s')", cg->id, cg->chart_id); + + int user_configurable = 1; + + // check if this cgroup should be a systemd service + if(cgroup_enable_systemd_services) { + if(simple_pattern_matches(systemd_services_cgroups, cg->id) || + simple_pattern_matches(systemd_services_cgroups, cg->chart_id)) { + debug(D_CGROUP, "cgroup '%s' with chart id '%s' (title: '%s') matches systemd services cgroups", cg->id, cg->chart_id, cg->chart_title); + + char buffer[CGROUP_CHARTID_LINE_MAX + 1]; + cg->options |= CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE; + + strncpy(buffer, cg->id, CGROUP_CHARTID_LINE_MAX); + char *s = buffer; + + //freez(cg->chart_id); + //cg->chart_id = cgroup_chart_id_strdupz(s); + //cg->hash_chart = simple_hash(cg->chart_id); + + // skip to the last slash + size_t len = strlen(s); + while(len--) if(unlikely(s[len] == '/')) break; + if(len) s = &s[len + 1]; + + // remove extension + len = strlen(s); + while(len--) if(unlikely(s[len] == '.')) break; + if(len) s[len] = '\0'; + + freez(cg->chart_title); + cg->chart_title = cgroup_title_strdupz(s); + + cg->enabled = 1; + user_configurable = 0; + + debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title); + } + else + debug(D_CGROUP, "cgroup '%s' with chart id '%s' (title: '%s') does not match systemd services groups", cg->id, cg->chart_id, cg->chart_title); + } + + if(user_configurable) { + // allow the user to enable/disable this individualy + char option[FILENAME_MAX + 1]; + snprintfz(option, FILENAME_MAX, "enable cgroup %s", cg->chart_title); + cg->enabled = (char) config_get_boolean("plugin:cgroups", option, def); + } + + // detect duplicate cgroups + if(cg->enabled) { + struct cgroup *t; + for (t = discovered_cgroup_root; t; t = t->discovered_next) { + if (t != cg && t->enabled && t->hash_chart == cg->hash_chart && !strcmp(t->chart_id, cg->chart_id)) { + // TODO: use it after refactoring if system.slice might be scanned before init.scope/system.slice + // + // if (!strncmp(t->id, "/system.slice/", 14) && !strncmp(cg->id, "/init.scope/system.slice/", 25)) { + // error("CGROUP: chart id '%s' already exists with id '%s' and is enabled. Swapping them by enabling cgroup with id '%s' and disabling cgroup with id '%s'.", + // cg->chart_id, t->id, cg->id, t->id); + // t->enabled = 0; + // t->options |= CGROUP_OPTIONS_DISABLED_DUPLICATE; + // } + // else {} + // + // https://github.com/netdata/netdata/issues/797#issuecomment-241248884 + error("CGROUP: chart id '%s' already exists with id '%s' and is enabled and available. Disabling cgroup with id '%s'.", + cg->chart_id, t->id, cg->id); + cg->enabled = 0; + cg->options |= CGROUP_OPTIONS_DISABLED_DUPLICATE; + + break; + } + } + } + + if(cg->enabled && !cg->pending_renames && !(cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE)) + read_cgroup_network_interfaces(cg); + + debug(D_CGROUP, "ADDED CGROUP: '%s' with chart id '%s' and title '%s' as %s (default was %s)", cg->id, cg->chart_id, cg->chart_title, (cg->enabled)?"enabled":"disabled", (def)?"enabled":"disabled"); + + return cg; +} + +static inline void free_pressure(struct pressure *res) { + if (res->some.st) rrdset_is_obsolete(res->some.st); + if (res->full.st) rrdset_is_obsolete(res->full.st); + freez(res->filename); +} + +static inline void cgroup_free(struct cgroup *cg) { + debug(D_CGROUP, "Removing cgroup '%s' with chart id '%s' (was %s and %s)", cg->id, cg->chart_id, (cg->enabled)?"enabled":"disabled", (cg->available)?"available":"not available"); + + if(cg->st_cpu) rrdset_is_obsolete(cg->st_cpu); + if(cg->st_cpu_limit) rrdset_is_obsolete(cg->st_cpu_limit); + if(cg->st_cpu_per_core) rrdset_is_obsolete(cg->st_cpu_per_core); + if(cg->st_mem) rrdset_is_obsolete(cg->st_mem); + if(cg->st_writeback) rrdset_is_obsolete(cg->st_writeback); + if(cg->st_mem_activity) rrdset_is_obsolete(cg->st_mem_activity); + if(cg->st_pgfaults) rrdset_is_obsolete(cg->st_pgfaults); + if(cg->st_mem_usage) rrdset_is_obsolete(cg->st_mem_usage); + if(cg->st_mem_usage_limit) rrdset_is_obsolete(cg->st_mem_usage_limit); + if(cg->st_mem_failcnt) rrdset_is_obsolete(cg->st_mem_failcnt); + if(cg->st_io) rrdset_is_obsolete(cg->st_io); + if(cg->st_serviced_ops) rrdset_is_obsolete(cg->st_serviced_ops); + if(cg->st_throttle_io) rrdset_is_obsolete(cg->st_throttle_io); + if(cg->st_throttle_serviced_ops) rrdset_is_obsolete(cg->st_throttle_serviced_ops); + if(cg->st_queued_ops) rrdset_is_obsolete(cg->st_queued_ops); + if(cg->st_merged_ops) rrdset_is_obsolete(cg->st_merged_ops); + + freez(cg->filename_cpuset_cpus); + freez(cg->filename_cpu_cfs_period); + freez(cg->filename_cpu_cfs_quota); + freez(cg->filename_memory_limit); + freez(cg->filename_memoryswap_limit); + + free_cgroup_network_interfaces(cg); + + freez(cg->cpuacct_usage.cpu_percpu); + + freez(cg->cpuacct_stat.filename); + freez(cg->cpuacct_usage.filename); + + arl_free(cg->memory.arl_base); + freez(cg->memory.filename_detailed); + freez(cg->memory.filename_failcnt); + freez(cg->memory.filename_usage_in_bytes); + freez(cg->memory.filename_msw_usage_in_bytes); + + freez(cg->io_service_bytes.filename); + freez(cg->io_serviced.filename); + + freez(cg->throttle_io_service_bytes.filename); + freez(cg->throttle_io_serviced.filename); + + freez(cg->io_merged.filename); + freez(cg->io_queued.filename); + + free_pressure(&cg->cpu_pressure); + free_pressure(&cg->io_pressure); + free_pressure(&cg->memory_pressure); + + freez(cg->id); + freez(cg->chart_id); + freez(cg->chart_title); + + free_label_list(cg->chart_labels); + + freez(cg); + + cgroup_root_count--; +} + +// find if a given cgroup exists +static inline struct cgroup *cgroup_find(const char *id) { + debug(D_CGROUP, "searching for cgroup '%s'", id); + + uint32_t hash = simple_hash(id); + + struct cgroup *cg; + for(cg = discovered_cgroup_root; cg ; cg = cg->discovered_next) { + if(hash == cg->hash && strcmp(id, cg->id) == 0) + break; + } + + debug(D_CGROUP, "cgroup '%s' %s in memory", id, (cg)?"found":"not found"); + return cg; +} + +// ---------------------------------------------------------------------------- +// detect running cgroups + +// callback for find_file_in_subdirs() +static inline void found_subdir_in_dir(const char *dir) { + debug(D_CGROUP, "examining cgroup dir '%s'", dir); + + struct cgroup *cg = cgroup_find(dir); + if(!cg) { + if(*dir && cgroup_max_depth > 0) { + int depth = 0; + const char *s; + + for(s = dir; *s ;s++) + if(unlikely(*s == '/')) + depth++; + + if(depth > cgroup_max_depth) { + info("CGROUP: '%s' is too deep (%d, while max is %d)", dir, depth, cgroup_max_depth); + return; + } + } + // debug(D_CGROUP, "will add dir '%s' as cgroup", dir); + cg = cgroup_add(dir); + } + + if(cg) { + // delay renaming of the cgroup and looking for network interfaces to deal with the docker lag when starting the container + if(unlikely(cg->pending_renames == 1)) { + // fix the chart_id and title by calling the external script + if(simple_pattern_matches(enabled_cgroup_renames, cg->id)) { + + cgroup_get_chart_name(cg); + cg->pending_renames = 0; + + if(cg->enabled && !(cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE)) + read_cgroup_network_interfaces(cg); + + debug(D_CGROUP, "cgroup '%s' renamed to '%s' (title: '%s')", cg->id, cg->chart_id, cg->chart_title); + } + else + debug(D_CGROUP, "cgroup '%s' will not be renamed - it matches the list of disabled cgroup renames (will be shown as '%s')", cg->id, cg->chart_id); + } + + cg->available = 1; + } +} + +static inline int find_dir_in_subdirs(const char *base, const char *this, void (*callback)(const char *)) { + if(!this) this = base; + debug(D_CGROUP, "searching for directories in '%s' (base '%s')", this?this:"", base); + + size_t dirlen = strlen(this), baselen = strlen(base); + + int ret = -1; + int enabled = -1; + + const char *relative_path = &this[baselen]; + if(!*relative_path) relative_path = "/"; + + DIR *dir = opendir(this); + if(!dir) { + error("CGROUP: cannot read directory '%s'", base); + return ret; + } + ret = 1; + + callback(relative_path); + + struct dirent *de = NULL; + while((de = readdir(dir))) { + if(de->d_type == DT_DIR + && ( + (de->d_name[0] == '.' && de->d_name[1] == '\0') + || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0') + )) + continue; + + if(de->d_type == DT_DIR) { + if(enabled == -1) { + const char *r = relative_path; + if(*r == '\0') r = "/"; + + // do not decent in directories we are not interested + int def = simple_pattern_matches(enabled_cgroup_paths, r); + + // we check for this option here + // so that the config will not have settings + // for leaf directories + char option[FILENAME_MAX + 1]; + snprintfz(option, FILENAME_MAX, "search for cgroups under %s", r); + option[FILENAME_MAX] = '\0'; + enabled = config_get_boolean("plugin:cgroups", option, def); + } + + if(enabled) { + char *s = mallocz(dirlen + strlen(de->d_name) + 2); + strcpy(s, this); + strcat(s, "/"); + strcat(s, de->d_name); + int ret2 = find_dir_in_subdirs(base, s, callback); + if(ret2 > 0) ret += ret2; + freez(s); + } + } + } + + closedir(dir); + return ret; +} + +static inline void mark_all_cgroups_as_not_available() { + debug(D_CGROUP, "marking all cgroups as not available"); + + struct cgroup *cg; + + // mark all as not available + for(cg = discovered_cgroup_root; cg ; cg = cg->discovered_next) { + cg->available = 0; + } +} + +static inline void update_filenames() +{ + struct cgroup *cg; + struct stat buf; + for(cg = discovered_cgroup_root; cg ; cg = cg->discovered_next) { + // fprintf(stderr, " >>> CGROUP '%s' (%u - %s) with name '%s'\n", cg->id, cg->hash, cg->available?"available":"stopped", cg->name); + + if(unlikely(cg->pending_renames)) + cg->pending_renames--; + + if(unlikely(!cg->available || cg->pending_renames)) + continue; + + debug(D_CGROUP, "checking paths for cgroup '%s'", cg->id); + + // check for newly added cgroups + // and update the filenames they read + char filename[FILENAME_MAX + 1]; + if(!cgroup_use_unified_cgroups) { + if(unlikely(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.stat", cgroup_cpuacct_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->cpuacct_stat.filename = strdupz(filename); + cg->cpuacct_stat.enabled = cgroup_enable_cpuacct_stat; + snprintfz(filename, FILENAME_MAX, "%s%s/cpuset.cpus", cgroup_cpuset_base, cg->id); + cg->filename_cpuset_cpus = strdupz(filename); + snprintfz(filename, FILENAME_MAX, "%s%s/cpu.cfs_period_us", cgroup_cpuacct_base, cg->id); + cg->filename_cpu_cfs_period = strdupz(filename); + snprintfz(filename, FILENAME_MAX, "%s%s/cpu.cfs_quota_us", cgroup_cpuacct_base, cg->id); + cg->filename_cpu_cfs_quota = strdupz(filename); + debug(D_CGROUP, "cpuacct.stat filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename); + } + else + debug(D_CGROUP, "cpuacct.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_cpuacct_usage && !cg->cpuacct_usage.filename && !(cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE))) { + snprintfz(filename, FILENAME_MAX, "%s%s/cpuacct.usage_percpu", cgroup_cpuacct_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->cpuacct_usage.filename = strdupz(filename); + cg->cpuacct_usage.enabled = cgroup_enable_cpuacct_usage; + debug(D_CGROUP, "cpuacct.usage_percpu filename for cgroup '%s': '%s'", cg->id, cg->cpuacct_usage.filename); + } + else + debug(D_CGROUP, "cpuacct.usage_percpu file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely((cgroup_enable_detailed_memory || cgroup_used_memory_without_cache) && !cg->memory.filename_detailed && (cgroup_used_memory_without_cache || cgroup_enable_systemd_services_detailed_memory || !(cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE)))) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_memory_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->memory.filename_detailed = strdupz(filename); + cg->memory.enabled_detailed = (cgroup_enable_detailed_memory == CONFIG_BOOLEAN_YES)?CONFIG_BOOLEAN_YES:CONFIG_BOOLEAN_AUTO; + debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_detailed); + } + else + debug(D_CGROUP, "memory.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_memory && !cg->memory.filename_usage_in_bytes)) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.usage_in_bytes", cgroup_memory_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->memory.filename_usage_in_bytes = strdupz(filename); + cg->memory.enabled_usage_in_bytes = cgroup_enable_memory; + debug(D_CGROUP, "memory.usage_in_bytes filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_usage_in_bytes); + snprintfz(filename, FILENAME_MAX, "%s%s/memory.limit_in_bytes", cgroup_memory_base, cg->id); + cg->filename_memory_limit = strdupz(filename); + } + else + debug(D_CGROUP, "memory.usage_in_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_swap && !cg->memory.filename_msw_usage_in_bytes)) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.memsw.usage_in_bytes", cgroup_memory_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->memory.filename_msw_usage_in_bytes = strdupz(filename); + cg->memory.enabled_msw_usage_in_bytes = cgroup_enable_swap; + snprintfz(filename, FILENAME_MAX, "%s%s/memory.memsw.limit_in_bytes", cgroup_memory_base, cg->id); + cg->filename_memoryswap_limit = strdupz(filename); + debug(D_CGROUP, "memory.msw_usage_in_bytes filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_msw_usage_in_bytes); + } + else + debug(D_CGROUP, "memory.msw_usage_in_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_memory_failcnt && !cg->memory.filename_failcnt)) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.failcnt", cgroup_memory_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->memory.filename_failcnt = strdupz(filename); + cg->memory.enabled_failcnt = cgroup_enable_memory_failcnt; + debug(D_CGROUP, "memory.failcnt filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_failcnt); + } + else + debug(D_CGROUP, "memory.failcnt file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_blkio_io && !cg->io_service_bytes.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_service_bytes", cgroup_blkio_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->io_service_bytes.filename = strdupz(filename); + cg->io_service_bytes.enabled = cgroup_enable_blkio_io; + debug(D_CGROUP, "io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename); + } + else + debug(D_CGROUP, "io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_blkio_ops && !cg->io_serviced.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_serviced", cgroup_blkio_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->io_serviced.filename = strdupz(filename); + cg->io_serviced.enabled = cgroup_enable_blkio_ops; + debug(D_CGROUP, "io_serviced filename for cgroup '%s': '%s'", cg->id, cg->io_serviced.filename); + } + else + debug(D_CGROUP, "io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_blkio_throttle_io && !cg->throttle_io_service_bytes.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_service_bytes", cgroup_blkio_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->throttle_io_service_bytes.filename = strdupz(filename); + cg->throttle_io_service_bytes.enabled = cgroup_enable_blkio_throttle_io; + debug(D_CGROUP, "throttle_io_service_bytes filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_service_bytes.filename); + } + else + debug(D_CGROUP, "throttle_io_service_bytes file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_blkio_throttle_ops && !cg->throttle_io_serviced.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/blkio.throttle.io_serviced", cgroup_blkio_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->throttle_io_serviced.filename = strdupz(filename); + cg->throttle_io_serviced.enabled = cgroup_enable_blkio_throttle_ops; + debug(D_CGROUP, "throttle_io_serviced filename for cgroup '%s': '%s'", cg->id, cg->throttle_io_serviced.filename); + } + else + debug(D_CGROUP, "throttle_io_serviced file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_blkio_merged_ops && !cg->io_merged.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_merged", cgroup_blkio_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->io_merged.filename = strdupz(filename); + cg->io_merged.enabled = cgroup_enable_blkio_merged_ops; + debug(D_CGROUP, "io_merged filename for cgroup '%s': '%s'", cg->id, cg->io_merged.filename); + } + else + debug(D_CGROUP, "io_merged file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_blkio_queued_ops && !cg->io_queued.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/blkio.io_queued", cgroup_blkio_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->io_queued.filename = strdupz(filename); + cg->io_queued.enabled = cgroup_enable_blkio_queued_ops; + debug(D_CGROUP, "io_queued filename for cgroup '%s': '%s'", cg->id, cg->io_queued.filename); + } + else + debug(D_CGROUP, "io_queued file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + } + else if(likely(cgroup_unified_exist)) { + if(unlikely(cgroup_enable_blkio_io && !cg->io_service_bytes.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/io.stat", cgroup_unified_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->io_service_bytes.filename = strdupz(filename); + cg->io_service_bytes.enabled = cgroup_enable_blkio_io; + debug(D_CGROUP, "io.stat filename for unified cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename); + } else + debug(D_CGROUP, "io.stat file for unified cgroup '%s': '%s' does not exist.", cg->id, filename); + } + if (unlikely(cgroup_enable_blkio_ops && !cg->io_serviced.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/io.stat", cgroup_unified_base, cg->id); + if (likely(stat(filename, &buf) != -1)) { + cg->io_serviced.filename = strdupz(filename); + cg->io_serviced.enabled = cgroup_enable_blkio_ops; + debug(D_CGROUP, "io.stat filename for unified cgroup '%s': '%s'", cg->id, cg->io_service_bytes.filename); + } else + debug(D_CGROUP, "io.stat file for unified cgroup '%s': '%s' does not exist.", cg->id, filename); + } + if(unlikely(cgroup_enable_cpuacct_stat && !cg->cpuacct_stat.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/cpu.stat", cgroup_unified_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->cpuacct_stat.filename = strdupz(filename); + cg->cpuacct_stat.enabled = cgroup_enable_cpuacct_stat; + cg->filename_cpuset_cpus = NULL; + cg->filename_cpu_cfs_period = NULL; + snprintfz(filename, FILENAME_MAX, "%s%s/cpu.max", cgroup_unified_base, cg->id); + cg->filename_cpu_cfs_quota = strdupz(filename); + debug(D_CGROUP, "cpu.stat filename for unified cgroup '%s': '%s'", cg->id, cg->cpuacct_stat.filename); + } + else + debug(D_CGROUP, "cpu.stat file for unified cgroup '%s': '%s' does not exist.", cg->id, filename); + } + if(unlikely((cgroup_enable_detailed_memory || cgroup_used_memory_without_cache) && !cg->memory.filename_detailed && (cgroup_used_memory_without_cache || cgroup_enable_systemd_services_detailed_memory || !(cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE)))) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.stat", cgroup_unified_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->memory.filename_detailed = strdupz(filename); + cg->memory.enabled_detailed = (cgroup_enable_detailed_memory == CONFIG_BOOLEAN_YES)?CONFIG_BOOLEAN_YES:CONFIG_BOOLEAN_AUTO; + debug(D_CGROUP, "memory.stat filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_detailed); + } + else + debug(D_CGROUP, "memory.stat file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_memory && !cg->memory.filename_usage_in_bytes)) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.current", cgroup_unified_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->memory.filename_usage_in_bytes = strdupz(filename); + cg->memory.enabled_usage_in_bytes = cgroup_enable_memory; + debug(D_CGROUP, "memory.current filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_usage_in_bytes); + snprintfz(filename, FILENAME_MAX, "%s%s/memory.max", cgroup_unified_base, cg->id); + cg->filename_memory_limit = strdupz(filename); + } + else + debug(D_CGROUP, "memory.current file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if(unlikely(cgroup_enable_swap && !cg->memory.filename_msw_usage_in_bytes)) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.swap.current", cgroup_unified_base, cg->id); + if(likely(stat(filename, &buf) != -1)) { + cg->memory.filename_msw_usage_in_bytes = strdupz(filename); + cg->memory.enabled_msw_usage_in_bytes = cgroup_enable_swap; + snprintfz(filename, FILENAME_MAX, "%s%s/memory.swap.max", cgroup_unified_base, cg->id); + cg->filename_memoryswap_limit = strdupz(filename); + debug(D_CGROUP, "memory.swap.current filename for cgroup '%s': '%s'", cg->id, cg->memory.filename_msw_usage_in_bytes); + } + else + debug(D_CGROUP, "memory.swap file for cgroup '%s': '%s' does not exist.", cg->id, filename); + } + + if (unlikely(cgroup_enable_pressure_cpu && !cg->cpu_pressure.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/cpu.pressure", cgroup_unified_base, cg->id); + if (likely(stat(filename, &buf) != -1)) { + cg->cpu_pressure.filename = strdupz(filename); + cg->cpu_pressure.some.enabled = cgroup_enable_pressure_cpu; + cg->cpu_pressure.full.enabled = CONFIG_BOOLEAN_NO; + debug(D_CGROUP, "cpu.pressure filename for cgroup '%s': '%s'", cg->id, cg->cpu_pressure.filename); + } else { + debug(D_CGROUP, "cpu.pressure file for cgroup '%s': '%s' does not exist", cg->id, filename); + } + } + + if (unlikely((cgroup_enable_pressure_io_some || cgroup_enable_pressure_io_full) && !cg->io_pressure.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/io.pressure", cgroup_unified_base, cg->id); + if (likely(stat(filename, &buf) != -1)) { + cg->io_pressure.filename = strdupz(filename); + cg->io_pressure.some.enabled = cgroup_enable_pressure_io_some; + cg->io_pressure.full.enabled = cgroup_enable_pressure_io_full; + debug(D_CGROUP, "io.pressure filename for cgroup '%s': '%s'", cg->id, cg->io_pressure.filename); + } else { + debug(D_CGROUP, "io.pressure file for cgroup '%s': '%s' does not exist", cg->id, filename); + } + } + + if (unlikely((cgroup_enable_pressure_memory_some || cgroup_enable_pressure_memory_full) && !cg->memory_pressure.filename)) { + snprintfz(filename, FILENAME_MAX, "%s%s/memory.pressure", cgroup_unified_base, cg->id); + if (likely(stat(filename, &buf) != -1)) { + cg->memory_pressure.filename = strdupz(filename); + cg->memory_pressure.some.enabled = cgroup_enable_pressure_memory_some; + cg->memory_pressure.full.enabled = cgroup_enable_pressure_memory_full; + debug(D_CGROUP, "memory.pressure filename for cgroup '%s': '%s'", cg->id, cg->memory_pressure.filename); + } else { + debug(D_CGROUP, "memory.pressure file for cgroup '%s': '%s' does not exist", cg->id, filename); + } + } + } + } +} + +static inline void cleanup_all_cgroups() { + struct cgroup *cg = discovered_cgroup_root, *last = NULL; + + for(; cg ;) { + if(!cg->available) { + // enable the first duplicate cgroup + { + struct cgroup *t; + for(t = discovered_cgroup_root; t ; t = t->discovered_next) { + if(t != cg && t->available && !t->enabled && t->options & CGROUP_OPTIONS_DISABLED_DUPLICATE && t->hash_chart == cg->hash_chart && !strcmp(t->chart_id, cg->chart_id)) { + debug(D_CGROUP, "Enabling duplicate of cgroup '%s' with id '%s', because the original with id '%s' stopped.", t->chart_id, t->id, cg->id); + t->enabled = 1; + t->options &= ~CGROUP_OPTIONS_DISABLED_DUPLICATE; + break; + } + } + } + + if(!last) + discovered_cgroup_root = cg->discovered_next; + else + last->discovered_next = cg->discovered_next; + + cgroup_free(cg); + + if(!last) + cg = discovered_cgroup_root; + else + cg = last->discovered_next; + } + else { + last = cg; + cg = cg->discovered_next; + } + } +} + +static inline void copy_discovered_cgroups() +{ + debug(D_CGROUP, "copy discovered cgroups to the main group list"); + + struct cgroup *cg; + + for(cg = discovered_cgroup_root; cg ; cg = cg->discovered_next) { + cg->next = cg->discovered_next; + } + + cgroup_root = discovered_cgroup_root; +} + +static inline void find_all_cgroups() { + debug(D_CGROUP, "searching for cgroups"); + + mark_all_cgroups_as_not_available(); + if(!cgroup_use_unified_cgroups) { + if(cgroup_enable_cpuacct_stat || cgroup_enable_cpuacct_usage) { + if(find_dir_in_subdirs(cgroup_cpuacct_base, NULL, found_subdir_in_dir) == -1) { + cgroup_enable_cpuacct_stat = + cgroup_enable_cpuacct_usage = CONFIG_BOOLEAN_NO; + error("CGROUP: disabled cpu statistics."); + } + } + + if(cgroup_enable_blkio_io || cgroup_enable_blkio_ops || cgroup_enable_blkio_throttle_io || cgroup_enable_blkio_throttle_ops || cgroup_enable_blkio_merged_ops || cgroup_enable_blkio_queued_ops) { + if(find_dir_in_subdirs(cgroup_blkio_base, NULL, found_subdir_in_dir) == -1) { + cgroup_enable_blkio_io = + cgroup_enable_blkio_ops = + cgroup_enable_blkio_throttle_io = + cgroup_enable_blkio_throttle_ops = + cgroup_enable_blkio_merged_ops = + cgroup_enable_blkio_queued_ops = CONFIG_BOOLEAN_NO; + error("CGROUP: disabled blkio statistics."); + } + } + + if(cgroup_enable_memory || cgroup_enable_detailed_memory || cgroup_enable_swap || cgroup_enable_memory_failcnt) { + if(find_dir_in_subdirs(cgroup_memory_base, NULL, found_subdir_in_dir) == -1) { + cgroup_enable_memory = + cgroup_enable_detailed_memory = + cgroup_enable_swap = + cgroup_enable_memory_failcnt = CONFIG_BOOLEAN_NO; + error("CGROUP: disabled memory statistics."); + } + } + + if(cgroup_search_in_devices) { + if(find_dir_in_subdirs(cgroup_devices_base, NULL, found_subdir_in_dir) == -1) { + cgroup_search_in_devices = 0; + error("CGROUP: disabled devices statistics."); + } + } + } + else { + if (find_dir_in_subdirs(cgroup_unified_base, NULL, found_subdir_in_dir) == -1) { + cgroup_unified_exist = CONFIG_BOOLEAN_NO; + error("CGROUP: disabled unified cgroups statistics."); + } + } + + update_filenames(); + + uv_mutex_lock(&cgroup_root_mutex); + cleanup_all_cgroups(); + copy_discovered_cgroups(); + uv_mutex_unlock(&cgroup_root_mutex); + + debug(D_CGROUP, "done searching for cgroups"); +} + +void cgroup_discovery_worker(void *ptr) +{ + UNUSED(ptr); + + while (!netdata_exit) { + uv_mutex_lock(&discovery_thread.mutex); + while (!discovery_thread.start_discovery) + uv_cond_wait(&discovery_thread.cond_var, &discovery_thread.mutex); + discovery_thread.start_discovery = 0; + uv_mutex_unlock(&discovery_thread.mutex); + + if (unlikely(netdata_exit)) + break; + + find_all_cgroups(); + } + + discovery_thread.exited = 1; +} + +// ---------------------------------------------------------------------------- +// generate charts + +#define CHART_TITLE_MAX 300 + +void update_systemd_services_charts( + int update_every + , int do_cpu + , int do_mem_usage + , int do_mem_detailed + , int do_mem_failcnt + , int do_swap_usage + , int do_io + , int do_io_ops + , int do_throttle_io + , int do_throttle_ops + , int do_queued_ops + , int do_merged_ops +) { + static RRDSET + *st_cpu = NULL, + *st_mem_usage = NULL, + *st_mem_failcnt = NULL, + *st_swap_usage = NULL, + + *st_mem_detailed_cache = NULL, + *st_mem_detailed_rss = NULL, + *st_mem_detailed_mapped = NULL, + *st_mem_detailed_writeback = NULL, + *st_mem_detailed_pgfault = NULL, + *st_mem_detailed_pgmajfault = NULL, + *st_mem_detailed_pgpgin = NULL, + *st_mem_detailed_pgpgout = NULL, + + *st_io_read = NULL, + *st_io_serviced_read = NULL, + *st_throttle_io_read = NULL, + *st_throttle_ops_read = NULL, + *st_queued_ops_read = NULL, + *st_merged_ops_read = NULL, + + *st_io_write = NULL, + *st_io_serviced_write = NULL, + *st_throttle_io_write = NULL, + *st_throttle_ops_write = NULL, + *st_queued_ops_write = NULL, + *st_merged_ops_write = NULL; + + // create the charts + + if(likely(do_cpu)) { + if(unlikely(!st_cpu)) { + char title[CHART_TITLE_MAX + 1]; + snprintfz(title, CHART_TITLE_MAX, "Systemd Services CPU utilization (100%% = 1 core)"); + + st_cpu = rrdset_create_localhost( + "services" + , "cpu" + , NULL + , "cpu" + , "services.cpu" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_cpu); + } + + if(likely(do_mem_usage)) { + if(unlikely(!st_mem_usage)) { + + st_mem_usage = rrdset_create_localhost( + "services" + , "mem_usage" + , NULL + , "mem" + , "services.mem_usage" + , (cgroup_used_memory_without_cache) ? "Systemd Services Used Memory without Cache" + : "Systemd Services Used Memory" + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 10 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_usage); + } + + if(likely(do_mem_detailed)) { + if(unlikely(!st_mem_detailed_rss)) { + + st_mem_detailed_rss = rrdset_create_localhost( + "services" + , "mem_rss" + , NULL + , "mem" + , "services.mem_rss" + , "Systemd Services RSS Memory" + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 20 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_detailed_rss); + + if(unlikely(!st_mem_detailed_mapped)) { + + st_mem_detailed_mapped = rrdset_create_localhost( + "services" + , "mem_mapped" + , NULL + , "mem" + , "services.mem_mapped" + , "Systemd Services Mapped Memory" + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 30 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_detailed_mapped); + + if(unlikely(!st_mem_detailed_cache)) { + + st_mem_detailed_cache = rrdset_create_localhost( + "services" + , "mem_cache" + , NULL + , "mem" + , "services.mem_cache" + , "Systemd Services Cache Memory" + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 40 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_detailed_cache); + + if(unlikely(!st_mem_detailed_writeback)) { + + st_mem_detailed_writeback = rrdset_create_localhost( + "services" + , "mem_writeback" + , NULL + , "mem" + , "services.mem_writeback" + , "Systemd Services Writeback Memory" + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 50 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_detailed_writeback); + + if(unlikely(!st_mem_detailed_pgfault)) { + + st_mem_detailed_pgfault = rrdset_create_localhost( + "services" + , "mem_pgfault" + , NULL + , "mem" + , "services.mem_pgfault" + , "Systemd Services Memory Minor Page Faults" + , "MiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 60 + , update_every + , RRDSET_TYPE_STACKED + ); + } + else + rrdset_next(st_mem_detailed_pgfault); + + if(unlikely(!st_mem_detailed_pgmajfault)) { + + st_mem_detailed_pgmajfault = rrdset_create_localhost( + "services" + , "mem_pgmajfault" + , NULL + , "mem" + , "services.mem_pgmajfault" + , "Systemd Services Memory Major Page Faults" + , "MiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 70 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_detailed_pgmajfault); + + if(unlikely(!st_mem_detailed_pgpgin)) { + + st_mem_detailed_pgpgin = rrdset_create_localhost( + "services" + , "mem_pgpgin" + , NULL + , "mem" + , "services.mem_pgpgin" + , "Systemd Services Memory Charging Activity" + , "MiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 80 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_detailed_pgpgin); + + if(unlikely(!st_mem_detailed_pgpgout)) { + + st_mem_detailed_pgpgout = rrdset_create_localhost( + "services" + , "mem_pgpgout" + , NULL + , "mem" + , "services.mem_pgpgout" + , "Systemd Services Memory Uncharging Activity" + , "MiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 90 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_detailed_pgpgout); + } + + if(likely(do_mem_failcnt)) { + if(unlikely(!st_mem_failcnt)) { + + st_mem_failcnt = rrdset_create_localhost( + "services" + , "mem_failcnt" + , NULL + , "mem" + , "services.mem_failcnt" + , "Systemd Services Memory Limit Failures" + , "failures" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 110 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_mem_failcnt); + } + + if(likely(do_swap_usage)) { + if(unlikely(!st_swap_usage)) { + + st_swap_usage = rrdset_create_localhost( + "services" + , "swap_usage" + , NULL + , "swap" + , "services.swap_usage" + , "Systemd Services Swap Memory Used" + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 100 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_swap_usage); + } + + if(likely(do_io)) { + if(unlikely(!st_io_read)) { + + st_io_read = rrdset_create_localhost( + "services" + , "io_read" + , NULL + , "disk" + , "services.io_read" + , "Systemd Services Disk Read Bandwidth" + , "KiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 120 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_io_read); + + if(unlikely(!st_io_write)) { + + st_io_write = rrdset_create_localhost( + "services" + , "io_write" + , NULL + , "disk" + , "services.io_write" + , "Systemd Services Disk Write Bandwidth" + , "KiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 130 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_io_write); + } + + if(likely(do_io_ops)) { + if(unlikely(!st_io_serviced_read)) { + + st_io_serviced_read = rrdset_create_localhost( + "services" + , "io_ops_read" + , NULL + , "disk" + , "services.io_ops_read" + , "Systemd Services Disk Read Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 140 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_io_serviced_read); + + if(unlikely(!st_io_serviced_write)) { + + st_io_serviced_write = rrdset_create_localhost( + "services" + , "io_ops_write" + , NULL + , "disk" + , "services.io_ops_write" + , "Systemd Services Disk Write Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 150 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_io_serviced_write); + } + + if(likely(do_throttle_io)) { + if(unlikely(!st_throttle_io_read)) { + + st_throttle_io_read = rrdset_create_localhost( + "services" + , "throttle_io_read" + , NULL + , "disk" + , "services.throttle_io_read" + , "Systemd Services Throttle Disk Read Bandwidth" + , "KiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 160 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_throttle_io_read); + + if(unlikely(!st_throttle_io_write)) { + + st_throttle_io_write = rrdset_create_localhost( + "services" + , "throttle_io_write" + , NULL + , "disk" + , "services.throttle_io_write" + , "Systemd Services Throttle Disk Write Bandwidth" + , "KiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 170 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_throttle_io_write); + } + + if(likely(do_throttle_ops)) { + if(unlikely(!st_throttle_ops_read)) { + + st_throttle_ops_read = rrdset_create_localhost( + "services" + , "throttle_io_ops_read" + , NULL + , "disk" + , "services.throttle_io_ops_read" + , "Systemd Services Throttle Disk Read Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 180 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_throttle_ops_read); + + if(unlikely(!st_throttle_ops_write)) { + + st_throttle_ops_write = rrdset_create_localhost( + "services" + , "throttle_io_ops_write" + , NULL + , "disk" + , "services.throttle_io_ops_write" + , "Systemd Services Throttle Disk Write Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 190 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_throttle_ops_write); + } + + if(likely(do_queued_ops)) { + if(unlikely(!st_queued_ops_read)) { + + st_queued_ops_read = rrdset_create_localhost( + "services" + , "queued_io_ops_read" + , NULL + , "disk" + , "services.queued_io_ops_read" + , "Systemd Services Queued Disk Read Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 200 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_queued_ops_read); + + if(unlikely(!st_queued_ops_write)) { + + st_queued_ops_write = rrdset_create_localhost( + "services" + , "queued_io_ops_write" + , NULL + , "disk" + , "services.queued_io_ops_write" + , "Systemd Services Queued Disk Write Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 210 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_queued_ops_write); + } + + if(likely(do_merged_ops)) { + if(unlikely(!st_merged_ops_read)) { + + st_merged_ops_read = rrdset_create_localhost( + "services" + , "merged_io_ops_read" + , NULL + , "disk" + , "services.merged_io_ops_read" + , "Systemd Services Merged Disk Read Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 220 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_merged_ops_read); + + if(unlikely(!st_merged_ops_write)) { + + st_merged_ops_write = rrdset_create_localhost( + "services" + , "merged_io_ops_write" + , NULL + , "disk" + , "services.merged_io_ops_write" + , "Systemd Services Merged Disk Write Operations" + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME + , NETDATA_CHART_PRIO_CGROUPS_SYSTEMD + 230 + , update_every + , RRDSET_TYPE_STACKED + ); + + } + else + rrdset_next(st_merged_ops_write); + } + + // update the values + struct cgroup *cg; + for(cg = cgroup_root; cg ; cg = cg->next) { + if(unlikely(!cg->enabled || cg->pending_renames || !(cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE))) + continue; + + if(likely(do_cpu && cg->cpuacct_stat.updated)) { + if(unlikely(!cg->rd_cpu)){ + + + if (!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + cg->rd_cpu = rrddim_add(st_cpu, cg->chart_id, cg->chart_title, 100, system_hz, RRD_ALGORITHM_INCREMENTAL); + } else { + cg->rd_cpu = rrddim_add(st_cpu, cg->chart_id, cg->chart_title, 100, 1000000, RRD_ALGORITHM_INCREMENTAL); + } + } + + rrddim_set_by_pointer(st_cpu, cg->rd_cpu, cg->cpuacct_stat.user + cg->cpuacct_stat.system); + } + + if(likely(do_mem_usage && cg->memory.updated_usage_in_bytes)) { + if(unlikely(!cg->rd_mem_usage)) + cg->rd_mem_usage = rrddim_add(st_mem_usage, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_set_by_pointer(st_mem_usage, cg->rd_mem_usage, cg->memory.usage_in_bytes - ((cgroup_used_memory_without_cache)?cg->memory.total_cache:0)); + } + + if(likely(do_mem_detailed && cg->memory.updated_detailed)) { + if(unlikely(!cg->rd_mem_detailed_rss)) + cg->rd_mem_detailed_rss = rrddim_add(st_mem_detailed_rss, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_set_by_pointer(st_mem_detailed_rss, cg->rd_mem_detailed_rss, cg->memory.total_rss + cg->memory.total_rss_huge); + + if(unlikely(!cg->rd_mem_detailed_mapped)) + cg->rd_mem_detailed_mapped = rrddim_add(st_mem_detailed_mapped, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_set_by_pointer(st_mem_detailed_mapped, cg->rd_mem_detailed_mapped, cg->memory.total_mapped_file); + + if(unlikely(!cg->rd_mem_detailed_cache)) + cg->rd_mem_detailed_cache = rrddim_add(st_mem_detailed_cache, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_set_by_pointer(st_mem_detailed_cache, cg->rd_mem_detailed_cache, cg->memory.total_cache); + + if(unlikely(!cg->rd_mem_detailed_writeback)) + cg->rd_mem_detailed_writeback = rrddim_add(st_mem_detailed_writeback, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_set_by_pointer(st_mem_detailed_writeback, cg->rd_mem_detailed_writeback, cg->memory.total_writeback); + + if(unlikely(!cg->rd_mem_detailed_pgfault)) + cg->rd_mem_detailed_pgfault = rrddim_add(st_mem_detailed_pgfault, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_mem_detailed_pgfault, cg->rd_mem_detailed_pgfault, cg->memory.total_pgfault); + + if(unlikely(!cg->rd_mem_detailed_pgmajfault)) + cg->rd_mem_detailed_pgmajfault = rrddim_add(st_mem_detailed_pgmajfault, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_mem_detailed_pgmajfault, cg->rd_mem_detailed_pgmajfault, cg->memory.total_pgmajfault); + + if(unlikely(!cg->rd_mem_detailed_pgpgin)) + cg->rd_mem_detailed_pgpgin = rrddim_add(st_mem_detailed_pgpgin, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_mem_detailed_pgpgin, cg->rd_mem_detailed_pgpgin, cg->memory.total_pgpgin); + + if(unlikely(!cg->rd_mem_detailed_pgpgout)) + cg->rd_mem_detailed_pgpgout = rrddim_add(st_mem_detailed_pgpgout, cg->chart_id, cg->chart_title, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_mem_detailed_pgpgout, cg->rd_mem_detailed_pgpgout, cg->memory.total_pgpgout); + } + + if(likely(do_mem_failcnt && cg->memory.updated_failcnt)) { + if(unlikely(!cg->rd_mem_failcnt)) + cg->rd_mem_failcnt = rrddim_add(st_mem_failcnt, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_mem_failcnt, cg->rd_mem_failcnt, cg->memory.failcnt); + } + + if(likely(do_swap_usage && cg->memory.updated_msw_usage_in_bytes)) { + if(unlikely(!cg->rd_swap_usage)) + cg->rd_swap_usage = rrddim_add(st_swap_usage, cg->chart_id, cg->chart_title, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_set_by_pointer(st_swap_usage, cg->rd_swap_usage, cg->memory.msw_usage_in_bytes); + } + + if(likely(do_io && cg->io_service_bytes.updated)) { + if(unlikely(!cg->rd_io_service_bytes_read)) + cg->rd_io_service_bytes_read = rrddim_add(st_io_read, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_io_read, cg->rd_io_service_bytes_read, cg->io_service_bytes.Read); + + if(unlikely(!cg->rd_io_service_bytes_write)) + cg->rd_io_service_bytes_write = rrddim_add(st_io_write, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_io_write, cg->rd_io_service_bytes_write, cg->io_service_bytes.Write); + } + + if(likely(do_io_ops && cg->io_serviced.updated)) { + if(unlikely(!cg->rd_io_serviced_read)) + cg->rd_io_serviced_read = rrddim_add(st_io_serviced_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_io_serviced_read, cg->rd_io_serviced_read, cg->io_serviced.Read); + + if(unlikely(!cg->rd_io_serviced_write)) + cg->rd_io_serviced_write = rrddim_add(st_io_serviced_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_io_serviced_write, cg->rd_io_serviced_write, cg->io_serviced.Write); + } + + if(likely(do_throttle_io && cg->throttle_io_service_bytes.updated)) { + if(unlikely(!cg->rd_throttle_io_read)) + cg->rd_throttle_io_read = rrddim_add(st_throttle_io_read, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_throttle_io_read, cg->rd_throttle_io_read, cg->throttle_io_service_bytes.Read); + + if(unlikely(!cg->rd_throttle_io_write)) + cg->rd_throttle_io_write = rrddim_add(st_throttle_io_write, cg->chart_id, cg->chart_title, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_throttle_io_write, cg->rd_throttle_io_write, cg->throttle_io_service_bytes.Write); + } + + if(likely(do_throttle_ops && cg->throttle_io_serviced.updated)) { + if(unlikely(!cg->rd_throttle_io_serviced_read)) + cg->rd_throttle_io_serviced_read = rrddim_add(st_throttle_ops_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_throttle_ops_read, cg->rd_throttle_io_serviced_read, cg->throttle_io_serviced.Read); + + if(unlikely(!cg->rd_throttle_io_serviced_write)) + cg->rd_throttle_io_serviced_write = rrddim_add(st_throttle_ops_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_throttle_ops_write, cg->rd_throttle_io_serviced_write, cg->throttle_io_serviced.Write); + } + + if(likely(do_queued_ops && cg->io_queued.updated)) { + if(unlikely(!cg->rd_io_queued_read)) + cg->rd_io_queued_read = rrddim_add(st_queued_ops_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_queued_ops_read, cg->rd_io_queued_read, cg->io_queued.Read); + + if(unlikely(!cg->rd_io_queued_write)) + cg->rd_io_queued_write = rrddim_add(st_queued_ops_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_queued_ops_write, cg->rd_io_queued_write, cg->io_queued.Write); + } + + if(likely(do_merged_ops && cg->io_merged.updated)) { + if(unlikely(!cg->rd_io_merged_read)) + cg->rd_io_merged_read = rrddim_add(st_merged_ops_read, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_merged_ops_read, cg->rd_io_merged_read, cg->io_merged.Read); + + if(unlikely(!cg->rd_io_merged_write)) + cg->rd_io_merged_write = rrddim_add(st_merged_ops_write, cg->chart_id, cg->chart_title, 1, 1, RRD_ALGORITHM_INCREMENTAL); + + rrddim_set_by_pointer(st_merged_ops_write, cg->rd_io_merged_write, cg->io_merged.Write); + } + } + + // complete the iteration + if(likely(do_cpu)) + rrdset_done(st_cpu); + + if(likely(do_mem_usage)) + rrdset_done(st_mem_usage); + + if(unlikely(do_mem_detailed)) { + rrdset_done(st_mem_detailed_cache); + rrdset_done(st_mem_detailed_rss); + rrdset_done(st_mem_detailed_mapped); + rrdset_done(st_mem_detailed_writeback); + rrdset_done(st_mem_detailed_pgfault); + rrdset_done(st_mem_detailed_pgmajfault); + rrdset_done(st_mem_detailed_pgpgin); + rrdset_done(st_mem_detailed_pgpgout); + } + + if(likely(do_mem_failcnt)) + rrdset_done(st_mem_failcnt); + + if(likely(do_swap_usage)) + rrdset_done(st_swap_usage); + + if(likely(do_io)) { + rrdset_done(st_io_read); + rrdset_done(st_io_write); + } + + if(likely(do_io_ops)) { + rrdset_done(st_io_serviced_read); + rrdset_done(st_io_serviced_write); + } + + if(likely(do_throttle_io)) { + rrdset_done(st_throttle_io_read); + rrdset_done(st_throttle_io_write); + } + + if(likely(do_throttle_ops)) { + rrdset_done(st_throttle_ops_read); + rrdset_done(st_throttle_ops_write); + } + + if(likely(do_queued_ops)) { + rrdset_done(st_queued_ops_read); + rrdset_done(st_queued_ops_write); + } + + if(likely(do_merged_ops)) { + rrdset_done(st_merged_ops_read); + rrdset_done(st_merged_ops_write); + } +} + +static inline char *cgroup_chart_type(char *buffer, const char *id, size_t len) { + if(buffer[0]) return buffer; + + if(id[0] == '\0' || (id[0] == '/' && id[1] == '\0')) + strncpy(buffer, "cgroup_root", len); + else + snprintfz(buffer, len, "cgroup_%s", id); + + netdata_fix_chart_id(buffer); + return buffer; +} + +static inline unsigned long long cpuset_str2ull(char **s) { + unsigned long long n = 0; + char c; + for(c = **s; c >= '0' && c <= '9' ; c = *(++*s)) { + n *= 10; + n += c - '0'; + } + return n; +} + +static inline void update_cpu_limits(char **filename, unsigned long long *value, struct cgroup *cg) { + if(*filename) { + int ret = -1; + + if(value == &cg->cpuset_cpus) { + static char *buf = NULL; + static size_t buf_size = 0; + + if(!buf) { + buf_size = 100U + 6 * get_system_cpus(); // taken from kernel/cgroup/cpuset.c + buf = mallocz(buf_size + 1); + } + + ret = read_file(*filename, buf, buf_size); + + if(!ret) { + char *s = buf; + unsigned long long ncpus = 0; + + // parse the cpuset string and calculate the number of cpus the cgroup is allowed to use + while(*s) { + unsigned long long n = cpuset_str2ull(&s); + if(*s == ',') { + s++; + ncpus++; + continue; + } + if(*s == '-') { + s++; + unsigned long long m = cpuset_str2ull(&s); + ncpus += m - n + 1; // calculate the number of cpus in the region + } + s++; + } + + if(likely(ncpus)) *value = ncpus; + } + } + else if(value == &cg->cpu_cfs_period) { + ret = read_single_number_file(*filename, value); + } + else if(value == &cg->cpu_cfs_quota) { + ret = read_single_number_file(*filename, value); + } + else ret = -1; + + if(ret) { + error("Cannot refresh cgroup %s cpu limit by reading '%s'. Will not update its limit anymore.", cg->id, *filename); + freez(*filename); + *filename = NULL; + } + } +} + +static inline void update_cpu_limits2(struct cgroup *cg) { + if(cg->filename_cpu_cfs_quota){ + static procfile *ff = NULL; + + ff = procfile_reopen(ff, cg->filename_cpu_cfs_quota, NULL, PROCFILE_FLAG_DEFAULT); + if(unlikely(!ff)) { + goto cpu_limits2_err; + } + + ff = procfile_readall(ff); + if(unlikely(!ff)) { + goto cpu_limits2_err; + } + + unsigned long lines = procfile_lines(ff); + + if (unlikely(lines < 1)) { + error("CGROUP: file '%s' should have 1 lines.", cg->filename_cpu_cfs_quota); + return; + } + + cg->cpu_cfs_period = str2ull(procfile_lineword(ff, 0, 1)); + cg->cpuset_cpus = get_system_cpus(); + + char *s = "max\n\0"; + if(strsame(s, procfile_lineword(ff, 0, 0)) == 0){ + cg->cpu_cfs_quota = cg->cpu_cfs_period * cg->cpuset_cpus; + } else { + cg->cpu_cfs_quota = str2ull(procfile_lineword(ff, 0, 0)); + } + debug(D_CGROUP, "CPU limits values: %llu %llu %llu", cg->cpu_cfs_period, cg->cpuset_cpus, cg->cpu_cfs_quota); + return; + +cpu_limits2_err: + error("Cannot refresh cgroup %s cpu limit by reading '%s'. Will not update its limit anymore.", cg->id, cg->filename_cpu_cfs_quota); + freez(cg->filename_cpu_cfs_quota); + cg->filename_cpu_cfs_quota = NULL; + + } +} + +static inline int update_memory_limits(char **filename, RRDSETVAR **chart_var, unsigned long long *value, const char *chart_var_name, struct cgroup *cg) { + if(*filename) { + if(unlikely(!*chart_var)) { + *chart_var = rrdsetvar_custom_chart_variable_create(cg->st_mem_usage, chart_var_name); + if(!*chart_var) { + error("Cannot create cgroup %s chart variable '%s'. Will not update its limit anymore.", cg->id, chart_var_name); + freez(*filename); + *filename = NULL; + } + } + + if(*filename && *chart_var) { + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + if(read_single_number_file(*filename, value)) { + error("Cannot refresh cgroup %s memory limit by reading '%s'. Will not update its limit anymore.", cg->id, *filename); + freez(*filename); + *filename = NULL; + } + else { + rrdsetvar_custom_chart_variable_set(*chart_var, (calculated_number)(*value / (1024 * 1024))); + return 1; + } + } else { + char buffer[30 + 1]; + int ret = read_file(*filename, buffer, 30); + if(ret) { + error("Cannot refresh cgroup %s memory limit by reading '%s'. Will not update its limit anymore.", cg->id, *filename); + freez(*filename); + *filename = NULL; + return 0; + } + char *s = "max\n\0"; + if(strsame(s, buffer) == 0){ + *value = UINT64_MAX; + rrdsetvar_custom_chart_variable_set(*chart_var, (calculated_number)(*value / (1024 * 1024))); + return 1; + } + *value = str2ull(buffer); + rrdsetvar_custom_chart_variable_set(*chart_var, (calculated_number)(*value / (1024 * 1024))); + return 1; + } + } + } + return 0; +} + +void update_cgroup_charts(int update_every) { + debug(D_CGROUP, "updating cgroups charts"); + + char type[RRD_ID_LENGTH_MAX + 1]; + char title[CHART_TITLE_MAX + 1]; + + int services_do_cpu = 0, + services_do_mem_usage = 0, + services_do_mem_detailed = 0, + services_do_mem_failcnt = 0, + services_do_swap_usage = 0, + services_do_io = 0, + services_do_io_ops = 0, + services_do_throttle_io = 0, + services_do_throttle_ops = 0, + services_do_queued_ops = 0, + services_do_merged_ops = 0; + + struct cgroup *cg; + for(cg = cgroup_root; cg ; cg = cg->next) { + if(unlikely(!cg->enabled || cg->pending_renames)) + continue; + + if(likely(cgroup_enable_systemd_services && cg->options & CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE)) { + if(cg->cpuacct_stat.updated && cg->cpuacct_stat.enabled == CONFIG_BOOLEAN_YES) services_do_cpu++; + + if(cgroup_enable_systemd_services_detailed_memory && cg->memory.updated_detailed && cg->memory.enabled_detailed) services_do_mem_detailed++; + if(cg->memory.updated_usage_in_bytes && cg->memory.enabled_usage_in_bytes == CONFIG_BOOLEAN_YES) services_do_mem_usage++; + if(cg->memory.updated_failcnt && cg->memory.enabled_failcnt == CONFIG_BOOLEAN_YES) services_do_mem_failcnt++; + if(cg->memory.updated_msw_usage_in_bytes && cg->memory.enabled_msw_usage_in_bytes == CONFIG_BOOLEAN_YES) services_do_swap_usage++; + + if(cg->io_service_bytes.updated && cg->io_service_bytes.enabled == CONFIG_BOOLEAN_YES) services_do_io++; + if(cg->io_serviced.updated && cg->io_serviced.enabled == CONFIG_BOOLEAN_YES) services_do_io_ops++; + if(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.enabled == CONFIG_BOOLEAN_YES) services_do_throttle_io++; + if(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.enabled == CONFIG_BOOLEAN_YES) services_do_throttle_ops++; + if(cg->io_queued.updated && cg->io_queued.enabled == CONFIG_BOOLEAN_YES) services_do_queued_ops++; + if(cg->io_merged.updated && cg->io_merged.enabled == CONFIG_BOOLEAN_YES) services_do_merged_ops++; + continue; + } + + type[0] = '\0'; + + if(likely(cg->cpuacct_stat.updated && cg->cpuacct_stat.enabled == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_cpu)) { + snprintfz(title, CHART_TITLE_MAX, "CPU Usage (100%% = 1 core)"); + + cg->st_cpu = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "cpu" + , NULL + , "cpu" + , "cgroup.cpu" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + , update_every + , RRDSET_TYPE_STACKED + ); + + rrdset_update_labels(cg->st_cpu, cg->chart_labels); + + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + rrddim_add(cg->st_cpu, "user", NULL, 100, system_hz, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_cpu, "system", NULL, 100, system_hz, RRD_ALGORITHM_INCREMENTAL); + } + else { + rrddim_add(cg->st_cpu, "user", NULL, 100, 1000000, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_cpu, "system", NULL, 100, 1000000, RRD_ALGORITHM_INCREMENTAL); + } + } + else + rrdset_next(cg->st_cpu); + + rrddim_set(cg->st_cpu, "user", cg->cpuacct_stat.user); + rrddim_set(cg->st_cpu, "system", cg->cpuacct_stat.system); + rrdset_done(cg->st_cpu); + + if(likely(cg->filename_cpuset_cpus || cg->filename_cpu_cfs_period || cg->filename_cpu_cfs_quota)) { + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + update_cpu_limits(&cg->filename_cpuset_cpus, &cg->cpuset_cpus, cg); + update_cpu_limits(&cg->filename_cpu_cfs_period, &cg->cpu_cfs_period, cg); + update_cpu_limits(&cg->filename_cpu_cfs_quota, &cg->cpu_cfs_quota, cg); + } else { + update_cpu_limits2(cg); + } + + if(unlikely(!cg->chart_var_cpu_limit)) { + cg->chart_var_cpu_limit = rrdsetvar_custom_chart_variable_create(cg->st_cpu, "cpu_limit"); + if(!cg->chart_var_cpu_limit) { + error("Cannot create cgroup %s chart variable 'cpu_limit'. Will not update its limit anymore.", cg->id); + if(cg->filename_cpuset_cpus) freez(cg->filename_cpuset_cpus); + cg->filename_cpuset_cpus = NULL; + if(cg->filename_cpu_cfs_period) freez(cg->filename_cpu_cfs_period); + cg->filename_cpu_cfs_period = NULL; + if(cg->filename_cpu_cfs_quota) freez(cg->filename_cpu_cfs_quota); + cg->filename_cpu_cfs_quota = NULL; + } + } + else { + calculated_number value = 0, quota = 0; + + if(likely( ((!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) && (cg->filename_cpuset_cpus || (cg->filename_cpu_cfs_period && cg->filename_cpu_cfs_quota))) + || ((cg->options & CGROUP_OPTIONS_IS_UNIFIED) && cg->filename_cpu_cfs_quota))) { + if(unlikely(cg->cpu_cfs_quota > 0)) + quota = (calculated_number)cg->cpu_cfs_quota / (calculated_number)cg->cpu_cfs_period; + + if(unlikely(quota > 0 && quota < cg->cpuset_cpus)) + value = quota * 100; + else + value = (calculated_number)cg->cpuset_cpus * 100; + } + if(likely(value)) { + rrdsetvar_custom_chart_variable_set(cg->chart_var_cpu_limit, value); + + if(unlikely(!cg->st_cpu_limit)) { + snprintfz(title, CHART_TITLE_MAX, "CPU Usage within the limits"); + + cg->st_cpu_limit = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "cpu_limit" + , NULL + , "cpu" + , "cgroup.cpu_limit" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority - 1 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_cpu_limit, cg->chart_labels); + + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) + rrddim_add(cg->st_cpu_limit, "used", NULL, 1, system_hz, RRD_ALGORITHM_ABSOLUTE); + else + rrddim_add(cg->st_cpu_limit, "used", NULL, 1, 1000000, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(cg->st_cpu_limit); + + calculated_number cpu_usage = 0; + cpu_usage = (calculated_number)(cg->cpuacct_stat.user + cg->cpuacct_stat.system) * 100; + calculated_number cpu_used = 100 * (cpu_usage - cg->prev_cpu_usage) / (value * update_every); + + rrdset_isnot_obsolete(cg->st_cpu_limit); + + rrddim_set(cg->st_cpu_limit, "used", (cpu_used > 0)?cpu_used:0); + + cg->prev_cpu_usage = cpu_usage; + + rrdset_done(cg->st_cpu_limit); + } + else { + rrdsetvar_custom_chart_variable_set(cg->chart_var_cpu_limit, NAN); + if(unlikely(cg->st_cpu_limit)) { + rrdset_is_obsolete(cg->st_cpu_limit); + cg->st_cpu_limit = NULL; + } + } + } + } + } + + if(likely(cg->cpuacct_usage.updated && cg->cpuacct_usage.enabled == CONFIG_BOOLEAN_YES)) { + char id[RRD_ID_LENGTH_MAX + 1]; + unsigned int i; + + if(unlikely(!cg->st_cpu_per_core)) { + snprintfz(title, CHART_TITLE_MAX, "CPU Usage (100%% = 1 core) Per Core"); + + cg->st_cpu_per_core = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "cpu_per_core" + , NULL + , "cpu" + , "cgroup.cpu_per_core" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 100 + , update_every + , RRDSET_TYPE_STACKED + ); + + rrdset_update_labels(cg->st_cpu_per_core, cg->chart_labels); + + for(i = 0; i < cg->cpuacct_usage.cpus; i++) { + snprintfz(id, RRD_ID_LENGTH_MAX, "cpu%u", i); + rrddim_add(cg->st_cpu_per_core, id, NULL, 100, 1000000000, RRD_ALGORITHM_INCREMENTAL); + } + } + else + rrdset_next(cg->st_cpu_per_core); + + for(i = 0; i < cg->cpuacct_usage.cpus ;i++) { + snprintfz(id, RRD_ID_LENGTH_MAX, "cpu%u", i); + rrddim_set(cg->st_cpu_per_core, id, cg->cpuacct_usage.cpu_percpu[i]); + } + rrdset_done(cg->st_cpu_per_core); + } + + if(likely(cg->memory.updated_detailed && cg->memory.enabled_detailed == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_mem)) { + snprintfz(title, CHART_TITLE_MAX, "Memory Usage"); + + cg->st_mem = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "mem" + , NULL + , "mem" + , "cgroup.mem" + , title + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 210 + , update_every + , RRDSET_TYPE_STACKED + ); + + rrdset_update_labels(cg->st_mem, cg->chart_labels); + + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + rrddim_add(cg->st_mem, "cache", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem, "rss", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + if(cg->memory.detailed_has_swap) + rrddim_add(cg->st_mem, "swap", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_add(cg->st_mem, "rss_huge", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem, "mapped_file", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + } else { + rrddim_add(cg->st_mem, "anon", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem, "kernel_stack", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem, "slab", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem, "sock", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem, "anon_thp", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem, "file", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + } + } + else + rrdset_next(cg->st_mem); + + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + rrddim_set(cg->st_mem, "cache", cg->memory.total_cache); + rrddim_set(cg->st_mem, "rss", (cg->memory.total_rss > cg->memory.total_rss_huge)?(cg->memory.total_rss - cg->memory.total_rss_huge):0); + + if(cg->memory.detailed_has_swap) + rrddim_set(cg->st_mem, "swap", cg->memory.total_swap); + + rrddim_set(cg->st_mem, "rss_huge", cg->memory.total_rss_huge); + rrddim_set(cg->st_mem, "mapped_file", cg->memory.total_mapped_file); + } else { + rrddim_set(cg->st_mem, "anon", cg->memory.anon); + rrddim_set(cg->st_mem, "kernel_stack", cg->memory.kernel_stack); + rrddim_set(cg->st_mem, "slab", cg->memory.slab); + rrddim_set(cg->st_mem, "sock", cg->memory.sock); + rrddim_set(cg->st_mem, "anon_thp", cg->memory.anon_thp); + rrddim_set(cg->st_mem, "file", cg->memory.total_mapped_file); + } + rrdset_done(cg->st_mem); + + if(unlikely(!cg->st_writeback)) { + snprintfz(title, CHART_TITLE_MAX, "Writeback Memory"); + + cg->st_writeback = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "writeback" + , NULL + , "mem" + , "cgroup.writeback" + , title + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 300 + , update_every + , RRDSET_TYPE_AREA + ); + + rrdset_update_labels(cg->st_writeback, cg->chart_labels); + + if(cg->memory.detailed_has_dirty) + rrddim_add(cg->st_writeback, "dirty", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + + rrddim_add(cg->st_writeback, "writeback", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(cg->st_writeback); + + if(cg->memory.detailed_has_dirty) + rrddim_set(cg->st_writeback, "dirty", cg->memory.total_dirty); + + rrddim_set(cg->st_writeback, "writeback", cg->memory.total_writeback); + rrdset_done(cg->st_writeback); + + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + if(unlikely(!cg->st_mem_activity)) { + snprintfz(title, CHART_TITLE_MAX, "Memory Activity"); + + cg->st_mem_activity = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "mem_activity" + , NULL + , "mem" + , "cgroup.mem_activity" + , title + , "MiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 400 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_mem_activity, cg->chart_labels); + + rrddim_add(cg->st_mem_activity, "pgpgin", "in", system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_mem_activity, "pgpgout", "out", -system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_mem_activity); + + rrddim_set(cg->st_mem_activity, "pgpgin", cg->memory.total_pgpgin); + rrddim_set(cg->st_mem_activity, "pgpgout", cg->memory.total_pgpgout); + rrdset_done(cg->st_mem_activity); + } + + if(unlikely(!cg->st_pgfaults)) { + snprintfz(title, CHART_TITLE_MAX, "Memory Page Faults"); + + cg->st_pgfaults = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "pgfaults" + , NULL + , "mem" + , "cgroup.pgfaults" + , title + , "MiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 500 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_pgfaults, cg->chart_labels); + + rrddim_add(cg->st_pgfaults, "pgfault", NULL, system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_pgfaults, "pgmajfault", "swap", -system_page_size, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_pgfaults); + + rrddim_set(cg->st_pgfaults, "pgfault", cg->memory.total_pgfault); + rrddim_set(cg->st_pgfaults, "pgmajfault", cg->memory.total_pgmajfault); + rrdset_done(cg->st_pgfaults); + } + + if(likely(cg->memory.updated_usage_in_bytes && cg->memory.enabled_usage_in_bytes == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_mem_usage)) { + snprintfz(title, CHART_TITLE_MAX, "Used Memory %s", (cgroup_used_memory_without_cache && cg->memory.updated_detailed)?"without Cache ":""); + + cg->st_mem_usage = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "mem_usage" + , NULL + , "mem" + , "cgroup.mem_usage" + , title + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 200 + , update_every + , RRDSET_TYPE_STACKED + ); + + rrdset_update_labels(cg->st_mem_usage, cg->chart_labels); + + rrddim_add(cg->st_mem_usage, "ram", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem_usage, "swap", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(cg->st_mem_usage); + + rrddim_set(cg->st_mem_usage, "ram", cg->memory.usage_in_bytes - ((cgroup_used_memory_without_cache)?cg->memory.total_cache:0)); + if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { + rrddim_set(cg->st_mem_usage, "swap", (cg->memory.msw_usage_in_bytes > cg->memory.usage_in_bytes)?cg->memory.msw_usage_in_bytes - cg->memory.usage_in_bytes:0); + } else { + rrddim_set(cg->st_mem_usage, "swap", cg->memory.msw_usage_in_bytes); + } + rrdset_done(cg->st_mem_usage); + + if (likely(update_memory_limits(&cg->filename_memory_limit, &cg->chart_var_memory_limit, &cg->memory_limit, "memory_limit", cg))) { + static unsigned long long ram_total = 0; + + if(unlikely(!ram_total)) { + procfile *ff = NULL; + + char filename[FILENAME_MAX + 1]; + snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/meminfo"); + ff = procfile_open(config_get("plugin:cgroups", "meminfo filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT); + + if(likely(ff)) + ff = procfile_readall(ff); + if(likely(ff && procfile_lines(ff) && !strncmp(procfile_word(ff, 0), "MemTotal", 8))) + ram_total = str2ull(procfile_word(ff, 1)) * 1024; + else { + error("Cannot read file %s. Will not update cgroup %s RAM limit anymore.", filename, cg->id); + freez(cg->filename_memory_limit); + cg->filename_memory_limit = NULL; + } + + procfile_close(ff); + } + + if(likely(ram_total)) { + unsigned long long memory_limit = ram_total; + + if(unlikely(cg->memory_limit < ram_total)) + memory_limit = cg->memory_limit; + + if(unlikely(!cg->st_mem_usage_limit)) { + snprintfz(title, CHART_TITLE_MAX, "Used RAM without Cache within the limits"); + + cg->st_mem_usage_limit = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "mem_usage_limit" + , NULL + , "mem" + , "cgroup.mem_usage_limit" + , title + , "MiB" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 199 + , update_every + , RRDSET_TYPE_STACKED + ); + + rrdset_update_labels(cg->st_mem_usage_limit, cg->chart_labels); + + rrddim_add(cg->st_mem_usage_limit, "available", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_mem_usage_limit, "used", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(cg->st_mem_usage_limit); + + rrdset_isnot_obsolete(cg->st_mem_usage_limit); + + rrddim_set(cg->st_mem_usage_limit, "available", memory_limit - (cg->memory.usage_in_bytes - ((cgroup_used_memory_without_cache)?cg->memory.total_cache:0))); + rrddim_set(cg->st_mem_usage_limit, "used", cg->memory.usage_in_bytes - ((cgroup_used_memory_without_cache)?cg->memory.total_cache:0)); + rrdset_done(cg->st_mem_usage_limit); + } + } + else { + if(unlikely(cg->st_mem_usage_limit)) { + rrdset_is_obsolete(cg->st_mem_usage_limit); + cg->st_mem_usage_limit = NULL; + } + } + + update_memory_limits(&cg->filename_memoryswap_limit, &cg->chart_var_memoryswap_limit, &cg->memoryswap_limit, "memory_and_swap_limit", cg); + } + + if(likely(cg->memory.updated_failcnt && cg->memory.enabled_failcnt == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_mem_failcnt)) { + snprintfz(title, CHART_TITLE_MAX, "Memory Limit Failures"); + + cg->st_mem_failcnt = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "mem_failcnt" + , NULL + , "mem" + , "cgroup.mem_failcnt" + , title + , "count" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 250 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_mem_failcnt, cg->chart_labels); + + rrddim_add(cg->st_mem_failcnt, "failures", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_mem_failcnt); + + rrddim_set(cg->st_mem_failcnt, "failures", cg->memory.failcnt); + rrdset_done(cg->st_mem_failcnt); + } + + if(likely(cg->io_service_bytes.updated && cg->io_service_bytes.enabled == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_io)) { + snprintfz(title, CHART_TITLE_MAX, "I/O Bandwidth (all disks)"); + + cg->st_io = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "io" + , NULL + , "disk" + , "cgroup.io" + , title + , "KiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 1200 + , update_every + , RRDSET_TYPE_AREA + ); + + rrdset_update_labels(cg->st_io, cg->chart_labels); + + rrddim_add(cg->st_io, "read", NULL, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_io, "write", NULL, -1, 1024, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_io); + + rrddim_set(cg->st_io, "read", cg->io_service_bytes.Read); + rrddim_set(cg->st_io, "write", cg->io_service_bytes.Write); + rrdset_done(cg->st_io); + } + + if(likely(cg->io_serviced.updated && cg->io_serviced.enabled == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_serviced_ops)) { + snprintfz(title, CHART_TITLE_MAX, "Serviced I/O Operations (all disks)"); + + cg->st_serviced_ops = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "serviced_ops" + , NULL + , "disk" + , "cgroup.serviced_ops" + , title + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 1200 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_serviced_ops, cg->chart_labels); + + rrddim_add(cg->st_serviced_ops, "read", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_serviced_ops, "write", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_serviced_ops); + + rrddim_set(cg->st_serviced_ops, "read", cg->io_serviced.Read); + rrddim_set(cg->st_serviced_ops, "write", cg->io_serviced.Write); + rrdset_done(cg->st_serviced_ops); + } + + if(likely(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.enabled == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_throttle_io)) { + snprintfz(title, CHART_TITLE_MAX, "Throttle I/O Bandwidth (all disks)"); + + cg->st_throttle_io = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "throttle_io" + , NULL + , "disk" + , "cgroup.throttle_io" + , title + , "KiB/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 1200 + , update_every + , RRDSET_TYPE_AREA + ); + + rrdset_update_labels(cg->st_throttle_io, cg->chart_labels); + + rrddim_add(cg->st_throttle_io, "read", NULL, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_throttle_io, "write", NULL, -1, 1024, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_throttle_io); + + rrddim_set(cg->st_throttle_io, "read", cg->throttle_io_service_bytes.Read); + rrddim_set(cg->st_throttle_io, "write", cg->throttle_io_service_bytes.Write); + rrdset_done(cg->st_throttle_io); + } + + if(likely(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.enabled == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_throttle_serviced_ops)) { + snprintfz(title, CHART_TITLE_MAX, "Throttle Serviced I/O Operations (all disks)"); + + cg->st_throttle_serviced_ops = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "throttle_serviced_ops" + , NULL + , "disk" + , "cgroup.throttle_serviced_ops" + , title + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 1200 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_throttle_serviced_ops, cg->chart_labels); + + rrddim_add(cg->st_throttle_serviced_ops, "read", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_throttle_serviced_ops, "write", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_throttle_serviced_ops); + + rrddim_set(cg->st_throttle_serviced_ops, "read", cg->throttle_io_serviced.Read); + rrddim_set(cg->st_throttle_serviced_ops, "write", cg->throttle_io_serviced.Write); + rrdset_done(cg->st_throttle_serviced_ops); + } + + if(likely(cg->io_queued.updated && cg->io_queued.enabled == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_queued_ops)) { + snprintfz(title, CHART_TITLE_MAX, "Queued I/O Operations (all disks)"); + + cg->st_queued_ops = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "queued_ops" + , NULL + , "disk" + , "cgroup.queued_ops" + , title + , "operations" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 2000 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_queued_ops, cg->chart_labels); + + rrddim_add(cg->st_queued_ops, "read", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); + rrddim_add(cg->st_queued_ops, "write", NULL, -1, 1, RRD_ALGORITHM_ABSOLUTE); + } + else + rrdset_next(cg->st_queued_ops); + + rrddim_set(cg->st_queued_ops, "read", cg->io_queued.Read); + rrddim_set(cg->st_queued_ops, "write", cg->io_queued.Write); + rrdset_done(cg->st_queued_ops); + } + + if(likely(cg->io_merged.updated && cg->io_merged.enabled == CONFIG_BOOLEAN_YES)) { + if(unlikely(!cg->st_merged_ops)) { + snprintfz(title, CHART_TITLE_MAX, "Merged I/O Operations (all disks)"); + + cg->st_merged_ops = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "merged_ops" + , NULL + , "disk" + , "cgroup.merged_ops" + , title + , "operations/s" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 2100 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(cg->st_merged_ops, cg->chart_labels); + + rrddim_add(cg->st_merged_ops, "read", NULL, 1, 1024, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(cg->st_merged_ops, "write", NULL, -1, 1024, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(cg->st_merged_ops); + + rrddim_set(cg->st_merged_ops, "read", cg->io_merged.Read); + rrddim_set(cg->st_merged_ops, "write", cg->io_merged.Write); + rrdset_done(cg->st_merged_ops); + } + + if (cg->options & CGROUP_OPTIONS_IS_UNIFIED) { + struct pressure *res = &cg->cpu_pressure; + if (likely(res->updated && res->some.enabled)) { + if (unlikely(!res->some.st)) { + RRDSET *chart; + snprintfz(title, CHART_TITLE_MAX, "CPU pressure"); + + chart = res->some.st = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "cpu_pressure" + , NULL + , "cpu" + , "cgroup.cpu_pressure" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 2200 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(chart = res->some.st, cg->chart_labels); + + res->some.rd10 = rrddim_add(chart, "some 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->some.rd60 = rrddim_add(chart, "some 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->some.rd300 = rrddim_add(chart, "some 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + } else { + rrdset_next(res->some.st); + } + + update_pressure_chart(&res->some); + } + + res = &cg->memory_pressure; + if (likely(res->updated && res->some.enabled)) { + if (unlikely(!res->some.st)) { + RRDSET *chart; + snprintfz(title, CHART_TITLE_MAX, "Memory pressure"); + + chart = res->some.st = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "mem_pressure" + , NULL + , "mem" + , "cgroup.memory_pressure" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 2300 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(chart = res->some.st, cg->chart_labels); + + res->some.rd10 = rrddim_add(chart, "some 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->some.rd60 = rrddim_add(chart, "some 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->some.rd300 = rrddim_add(chart, "some 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + } else { + rrdset_next(res->some.st); + } + + update_pressure_chart(&res->some); + } + + if (likely(res->updated && res->full.enabled)) { + if (unlikely(!res->full.st)) { + RRDSET *chart; + snprintfz(title, CHART_TITLE_MAX, "Memory full pressure"); + + chart = res->full.st = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "mem_full_pressure" + , NULL + , "mem" + , "cgroup.memory_full_pressure" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 2350 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(chart = res->full.st, cg->chart_labels); + + res->full.rd10 = rrddim_add(chart, "full 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->full.rd60 = rrddim_add(chart, "full 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->full.rd300 = rrddim_add(chart, "full 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + } else { + rrdset_next(res->full.st); + } + + update_pressure_chart(&res->full); + } + + res = &cg->io_pressure; + if (likely(res->updated && res->some.enabled)) { + if (unlikely(!res->some.st)) { + RRDSET *chart; + snprintfz(title, CHART_TITLE_MAX, "I/O pressure"); + + chart = res->some.st = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "io_pressure" + , NULL + , "disk" + , "cgroup.io_pressure" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 2400 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(chart = res->some.st, cg->chart_labels); + + res->some.rd10 = rrddim_add(chart, "some 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->some.rd60 = rrddim_add(chart, "some 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->some.rd300 = rrddim_add(chart, "some 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + } else { + rrdset_next(res->some.st); + } + + update_pressure_chart(&res->some); + } + + if (likely(res->updated && res->full.enabled)) { + if (unlikely(!res->full.st)) { + RRDSET *chart; + snprintfz(title, CHART_TITLE_MAX, "I/O full pressure"); + + chart = res->full.st = rrdset_create_localhost( + cgroup_chart_type(type, cg->chart_id, RRD_ID_LENGTH_MAX) + , "io_full_pressure" + , NULL + , "disk" + , "cgroup.io_full_pressure" + , title + , "percentage" + , PLUGIN_CGROUPS_NAME + , PLUGIN_CGROUPS_MODULE_CGROUPS_NAME + , cgroup_containers_chart_priority + 2450 + , update_every + , RRDSET_TYPE_LINE + ); + + rrdset_update_labels(chart = res->full.st, cg->chart_labels); + + res->full.rd10 = rrddim_add(chart, "full 10", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->full.rd60 = rrddim_add(chart, "full 60", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + res->full.rd300 = rrddim_add(chart, "full 300", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); + } else { + rrdset_next(res->full.st); + } + + update_pressure_chart(&res->full); + } + } + } + + if(likely(cgroup_enable_systemd_services)) + update_systemd_services_charts(update_every, services_do_cpu, services_do_mem_usage, services_do_mem_detailed + , services_do_mem_failcnt, services_do_swap_usage, services_do_io + , services_do_io_ops, services_do_throttle_io, services_do_throttle_ops + , services_do_queued_ops, services_do_merged_ops + ); + + debug(D_CGROUP, "done updating cgroups charts"); +} + +// ---------------------------------------------------------------------------- +// cgroups main + +static void cgroup_main_cleanup(void *ptr) { + struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr; + static_thread->enabled = NETDATA_MAIN_THREAD_EXITING; + + info("cleaning up..."); + + usec_t max = 2 * USEC_PER_SEC, step = 50000; + + if (!discovery_thread.exited) { + info("stopping discovery thread worker"); + uv_mutex_lock(&discovery_thread.mutex); + discovery_thread.start_discovery = 1; + uv_cond_signal(&discovery_thread.cond_var); + uv_mutex_unlock(&discovery_thread.mutex); + } + + while (!discovery_thread.exited && max > 0) { + max -= step; + info("waiting for discovery thread to finish..."); + sleep_usec(step); + } + + static_thread->enabled = NETDATA_MAIN_THREAD_EXITED; +} + +void *cgroups_main(void *ptr) { + netdata_thread_cleanup_push(cgroup_main_cleanup, ptr); + + struct rusage thread; + + // when ZERO, attempt to do it + int vdo_cpu_netdata = config_get_boolean("plugin:cgroups", "cgroups plugin resource charts", 1); + + read_cgroup_plugin_configuration(); + + RRDSET *stcpu_thread = NULL; + + if (uv_mutex_init(&cgroup_root_mutex)) { + error("CGROUP: cannot initialize mutex for the main cgroup list"); + goto exit; + } + + // dispatch a discovery worker thread + discovery_thread.start_discovery = 0; + discovery_thread.exited = 0; + + if (uv_mutex_init(&discovery_thread.mutex)) { + error("CGROUP: cannot initialize mutex for discovery thread"); + goto exit; + } + if (uv_cond_init(&discovery_thread.cond_var)) { + error("CGROUP: cannot initialize conditional variable for discovery thread"); + goto exit; + } + + int error = uv_thread_create(&discovery_thread.thread, cgroup_discovery_worker, NULL); + if (error) { + error("CGROUP: cannot create tread worker. uv_thread_create(): %s", uv_strerror(error)); + goto exit; + } + uv_thread_set_name_np(discovery_thread.thread, "PLUGIN[cgroups]"); + + heartbeat_t hb; + heartbeat_init(&hb); + usec_t step = cgroup_update_every * USEC_PER_SEC; + usec_t find_every = cgroup_check_for_new_every * USEC_PER_SEC, find_dt = 0; + + while(!netdata_exit) { + usec_t hb_dt = heartbeat_next(&hb, step); + if(unlikely(netdata_exit)) break; + + find_dt += hb_dt; + if(unlikely(find_dt >= find_every || cgroups_check)) { + uv_cond_signal(&discovery_thread.cond_var); + discovery_thread.start_discovery = 1; + find_dt = 0; + cgroups_check = 0; + } + + uv_mutex_lock(&cgroup_root_mutex); + read_all_cgroups(cgroup_root); + update_cgroup_charts(cgroup_update_every); + uv_mutex_unlock(&cgroup_root_mutex); + + // -------------------------------------------------------------------- + + if(vdo_cpu_netdata) { + getrusage(RUSAGE_THREAD, &thread); + + if(unlikely(!stcpu_thread)) { + + stcpu_thread = rrdset_create_localhost( + "netdata" + , "plugin_cgroups_cpu" + , NULL + , "cgroups" + , NULL + , "NetData CGroups Plugin CPU usage" + , "milliseconds/s" + , PLUGIN_CGROUPS_NAME + , "stats" + , 132000 + , cgroup_update_every + , RRDSET_TYPE_STACKED + ); + + rrddim_add(stcpu_thread, "user", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL); + rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL); + } + else + rrdset_next(stcpu_thread); + + rrddim_set(stcpu_thread, "user" , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec); + rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec); + rrdset_done(stcpu_thread); + } + } + +exit: + netdata_thread_cleanup_pop(1); + return NULL; +} |