diff options
Diffstat (limited to 'collectors/cgroups.plugin/sys_fs_cgroup.c')
| -rw-r--r-- | collectors/cgroups.plugin/sys_fs_cgroup.c | 1729 |
1 files changed, 0 insertions, 1729 deletions
diff --git a/collectors/cgroups.plugin/sys_fs_cgroup.c b/collectors/cgroups.plugin/sys_fs_cgroup.c deleted file mode 100644 index 705edf6f7..000000000 --- a/collectors/cgroups.plugin/sys_fs_cgroup.c +++ /dev/null @@ -1,1729 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#include "cgroup-internals.h" - -// main cgroups thread worker jobs -#define WORKER_CGROUPS_LOCK 0 -#define WORKER_CGROUPS_READ 1 -#define WORKER_CGROUPS_CHART 2 - -// ---------------------------------------------------------------------------- -// cgroup globals -unsigned long long host_ram_total = 0; -int is_inside_k8s = 0; -long system_page_size = 4096; // system will be queried via sysconf() in configuration() -int cgroup_enable_cpuacct_stat = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_cpuacct_usage = CONFIG_BOOLEAN_NO; -int cgroup_enable_cpuacct_cpu_throttling = CONFIG_BOOLEAN_YES; -int cgroup_enable_cpuacct_cpu_shares = CONFIG_BOOLEAN_NO; -int cgroup_enable_memory = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_detailed_memory = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_memory_failcnt = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_swap = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_blkio_io = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_blkio_ops = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_blkio_throttle_io = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_blkio_throttle_ops = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_blkio_merged_ops = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_blkio_queued_ops = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_pressure_cpu = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_pressure_io_some = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_pressure_io_full = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_pressure_memory_some = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_pressure_memory_full = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_pressure_irq_some = CONFIG_BOOLEAN_NO; -int cgroup_enable_pressure_irq_full = CONFIG_BOOLEAN_AUTO; -int cgroup_enable_systemd_services = CONFIG_BOOLEAN_YES; -int cgroup_enable_systemd_services_detailed_memory = CONFIG_BOOLEAN_NO; -int cgroup_used_memory = CONFIG_BOOLEAN_YES; -int cgroup_use_unified_cgroups = CONFIG_BOOLEAN_NO; -int cgroup_unified_exist = CONFIG_BOOLEAN_AUTO; -int cgroup_search_in_devices = 1; -int cgroup_check_for_new_every = 10; -int cgroup_update_every = 1; -int cgroup_containers_chart_priority = NETDATA_CHART_PRIO_CGROUPS_CONTAINERS; -int cgroup_recheck_zero_blkio_every_iterations = 10; -int cgroup_recheck_zero_mem_failcnt_every_iterations = 10; -int cgroup_recheck_zero_mem_detailed_every_iterations = 10; -char *cgroup_cpuacct_base = NULL; -char *cgroup_cpuset_base = NULL; -char *cgroup_blkio_base = NULL; -char *cgroup_memory_base = NULL; -char *cgroup_devices_base = NULL; -char *cgroup_pids_base = NULL; -char *cgroup_unified_base = NULL; -int cgroup_root_count = 0; -int cgroup_root_max = 1000; -int cgroup_max_depth = 0; -SIMPLE_PATTERN *enabled_cgroup_paths = NULL; -SIMPLE_PATTERN *enabled_cgroup_names = NULL; -SIMPLE_PATTERN *search_cgroup_paths = NULL; -SIMPLE_PATTERN *enabled_cgroup_renames = NULL; -SIMPLE_PATTERN *systemd_services_cgroups = NULL; -SIMPLE_PATTERN *entrypoint_parent_process_comm = NULL; -char *cgroups_network_interface_script = NULL; -int cgroups_check = 0; -uint32_t Read_hash = 0; -uint32_t Write_hash = 0; -uint32_t user_hash = 0; -uint32_t system_hash = 0; -uint32_t user_usec_hash = 0; -uint32_t system_usec_hash = 0; -uint32_t nr_periods_hash = 0; -uint32_t nr_throttled_hash = 0; -uint32_t throttled_time_hash = 0; -uint32_t throttled_usec_hash = 0; - -// *** WARNING *** The fields are not thread safe. Take care of safe usage. -struct cgroup *cgroup_root = NULL; -uv_mutex_t cgroup_root_mutex; - -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 }, -}; - -// Shared memory with information from detected cgroups -netdata_ebpf_cgroup_shm_t shm_cgroup_ebpf = {NULL, NULL}; -int shm_fd_cgroup_ebpf = -1; -sem_t *shm_mutex_cgroup_ebpf = SEM_FAILED; - -struct discovery_thread discovery_thread; - - -/* 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 *fp_child_input; - FILE *fp_child_output = netdata_popen(exec, &command_pid, &fp_child_input); - - if (!fp_child_output) - return retval; - - fd_set rfds; - struct timeval timeout; - int fd = fileno(fp_child_output); - int ret = -1; - - FD_ZERO(&rfds); - FD_SET(fd, &rfds); - timeout.tv_sec = 3; - timeout.tv_usec = 0; - - if (fd != -1) { - ret = select(fd + 1, &rfds, NULL, NULL, &timeout); - } - - if (ret == -1) { - collector_error("Failed to get the output of \"%s\"", exec); - } else if (ret == 0) { - collector_info("Cannot get the output of \"%s\" within %"PRId64" seconds", exec, (int64_t)timeout.tv_sec); - } else { - while (fgets(buf, MAXSIZE_PROC_CMDLINE, fp_child_output) != 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 (netdata_pclose(fp_child_input, fp_child_output, 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 available on system at all - FILE *fp_child_input; - FILE *fp_child_output = netdata_popen("grep cgroup /proc/filesystems", &command_pid, &fp_child_input); - if (!fp_child_output) { - collector_error("popen failed"); - return CGROUPS_AUTODETECT_FAIL; - } - while (fgets(buf, MAXSIZE_PROC_CMDLINE, fp_child_output) != NULL) { - if (strstr(buf, "cgroup2")) { - cgroups2_available = 1; - break; - } - } - if(netdata_pclose(fp_child_input, fp_child_output, command_pid)) - return CGROUPS_AUTODETECT_FAIL; - - if(!cgroups2_available) - return CGROUPS_V1; - -#if defined CGROUP2_SUPER_MAGIC - // 2. check filesystem type for the default mountpoint - char filename[FILENAME_MAX + 1]; - snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/fs/cgroup"); - struct statfs fsinfo; - if (!statfs(filename, &fsinfo)) { - if (fsinfo.f_type == CGROUP2_SUPER_MAGIC) - return CGROUPS_V2; - } -#endif - - // 3. 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) { - // currently 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; - } - - // 4. if we are unified as on Fedora (default cgroups2 only mode) - // check kernel command line flag that can override that setting - FILE *fp = fopen("/proc/cmdline", "r"); - if (!fp) { - collector_error("Error reading kernel boot commandline parameters"); - return CGROUPS_AUTODETECT_FAIL; - } - - if (!fgets(buf, MAXSIZE_PROC_CMDLINE, fp)) { - collector_error("couldn't read all cmdline params into buffer"); - fclose(fp); - return CGROUPS_AUTODETECT_FAIL; - } - - fclose(fp); - - if (strstr(buf, "systemd.unified_cgroup_hierarchy=0")) { - collector_info("cgroups v2 (unified cgroups) is available but are disabled on this system."); - return CGROUPS_V1; - } - return CGROUPS_V2; -} - -void set_cgroup_base_path(char *filename, char *path) { - if (strncmp(netdata_configured_host_prefix, path, strlen(netdata_configured_host_prefix)) == 0) { - snprintfz(filename, FILENAME_MAX, "%s", path); - } else { - snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, path); - } -} - -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"); - user_usec_hash = simple_hash("user_usec"); - system_usec_hash = simple_hash("system_usec"); - nr_periods_hash = simple_hash("nr_periods"); - nr_throttled_hash = simple_hash("nr_throttled"); - throttled_time_hash = simple_hash("throttled_time"); - throttled_usec_hash = simple_hash("throttled_usec"); - - 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); - - collector_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_cpuacct_cpu_throttling = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct cpu throttling", cgroup_enable_cpuacct_cpu_throttling); - cgroup_enable_cpuacct_cpu_shares = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct cpu shares", cgroup_enable_cpuacct_cpu_shares); - - cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory", 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 = config_get_boolean("plugin:cgroups", "report used memory", cgroup_used_memory); - - 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) { - collector_error("CGROUP: cannot find cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct"); - s = "/sys/fs/cgroup/cpuacct"; - } else - s = mi->mount_point; - set_cgroup_base_path(filename, 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) { - collector_error("CGROUP: cannot find cpuset mountinfo. Assuming default: /sys/fs/cgroup/cpuset"); - s = "/sys/fs/cgroup/cpuset"; - } else - s = mi->mount_point; - set_cgroup_base_path(filename, 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) { - collector_error("CGROUP: cannot find blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio"); - s = "/sys/fs/cgroup/blkio"; - } else - s = mi->mount_point; - set_cgroup_base_path(filename, 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) { - collector_error("CGROUP: cannot find memory mountinfo. Assuming default: /sys/fs/cgroup/memory"); - s = "/sys/fs/cgroup/memory"; - } else - s = mi->mount_point; - set_cgroup_base_path(filename, 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) { - collector_error("CGROUP: cannot find devices mountinfo. Assuming default: /sys/fs/cgroup/devices"); - s = "/sys/fs/cgroup/devices"; - } else - s = mi->mount_point; - set_cgroup_base_path(filename, s); - cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename); - - mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "pids"); - if (!mi) - mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "pids"); - if (!mi) { - collector_error("CGROUP: cannot find pids mountinfo. Assuming default: /sys/fs/cgroup/pids"); - s = "/sys/fs/cgroup/pids"; - } else - s = mi->mount_point; - set_cgroup_base_path(filename, s); - cgroup_pids_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/pids", 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 = CONFIG_BOOLEAN_NO; //unified cgroups use different values - - //TODO: can there be more than 1 cgroup2 mount point? - //there is no cgroup2 specific super option - for now use 'rw' option - mi = mountinfo_find_by_filesystem_super_option(root, "cgroup2", "rw"); - if (!mi) { - mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup2", "cgroup"); - } - if (!mi) { - collector_error("CGROUP: cannot find cgroup2 mountinfo. Assuming default: /sys/fs/cgroup"); - s = "/sys/fs/cgroup"; - } else - s = mi->mount_point; - - set_cgroup_base_path(filename, s); - cgroup_unified_base = config_get("plugin:cgroups", "path to unified cgroups", filename); - } - - 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); - - enabled_cgroup_paths = 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-pod*/* " // k8s containers - " */*-kubepods-*-pod*/* " // k8s containers - " !*kubepods* !*kubelet* " // all other k8s cgroups - - // ---------------------------------------------------------------- - - " !*/vcpu* " // libvirtd adds these sub-cgroups - " !*/emulator " // libvirtd adds these sub-cgroups - " !*.mount " - " !*.partition " - " !*.service " - " !*.service/udev " - " !*.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, true); - - enabled_cgroup_names = simple_pattern_create( - config_get("plugin:cgroups", "enable by default cgroups names matching", - " * " - ), NULL, SIMPLE_PATTERN_EXACT, true); - - search_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, true); - - 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/pod*/* " // k8s containers - " */kubepods/*/pod*/* " // k8s containers - " */*-kubepods-pod*/* " // k8s containers - " */*-kubepods-*-pod*/* " // k8s containers - " !*kubepods* !*kubelet* " // all other k8s cgroups - " *.libvirt-qemu " // #3010 - " * " - ), NULL, SIMPLE_PATTERN_EXACT, true); - - 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, true); - } - - mountinfo_free_all(root); -} - -void netdata_cgroup_ebpf_set_values(size_t length) -{ - sem_wait(shm_mutex_cgroup_ebpf); - - shm_cgroup_ebpf.header->cgroup_max = cgroup_root_max; - shm_cgroup_ebpf.header->systemd_enabled = cgroup_enable_systemd_services | - cgroup_enable_systemd_services_detailed_memory | - cgroup_used_memory; - shm_cgroup_ebpf.header->body_length = length; - - sem_post(shm_mutex_cgroup_ebpf); -} - -void netdata_cgroup_ebpf_initialize_shm() -{ - shm_fd_cgroup_ebpf = shm_open(NETDATA_SHARED_MEMORY_EBPF_CGROUP_NAME, O_CREAT | O_RDWR, 0660); - if (shm_fd_cgroup_ebpf < 0) { - collector_error("Cannot initialize shared memory used by cgroup and eBPF, integration won't happen."); - return; - } - - size_t length = sizeof(netdata_ebpf_cgroup_shm_header_t) + cgroup_root_max * sizeof(netdata_ebpf_cgroup_shm_body_t); - if (ftruncate(shm_fd_cgroup_ebpf, length)) { - collector_error("Cannot set size for shared memory."); - goto end_init_shm; - } - - shm_cgroup_ebpf.header = (netdata_ebpf_cgroup_shm_header_t *) mmap(NULL, length, - PROT_READ | PROT_WRITE, MAP_SHARED, - shm_fd_cgroup_ebpf, 0); - - if (unlikely(MAP_FAILED == shm_cgroup_ebpf.header)) { - shm_cgroup_ebpf.header = NULL; - collector_error("Cannot map shared memory used between cgroup and eBPF, integration won't happen"); - goto end_init_shm; - } - shm_cgroup_ebpf.body = (netdata_ebpf_cgroup_shm_body_t *) ((char *)shm_cgroup_ebpf.header + - sizeof(netdata_ebpf_cgroup_shm_header_t)); - - shm_mutex_cgroup_ebpf = sem_open(NETDATA_NAMED_SEMAPHORE_EBPF_CGROUP_NAME, O_CREAT, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, 1); - - if (shm_mutex_cgroup_ebpf != SEM_FAILED) { - netdata_cgroup_ebpf_set_values(length); - return; - } - - collector_error("Cannot create semaphore, integration between eBPF and cgroup won't happen"); - munmap(shm_cgroup_ebpf.header, length); - shm_cgroup_ebpf.header = NULL; - -end_init_shm: - close(shm_fd_cgroup_ebpf); - shm_fd_cgroup_ebpf = -1; - shm_unlink(NETDATA_SHARED_MEMORY_EBPF_CGROUP_NAME); -} - -// --------------------------------------------------------------------------------------------- - -static unsigned long long calc_delta(unsigned long long curr, unsigned long long prev) { - if (prev > curr) { - return 0; - } - return curr - prev; -} - -static unsigned long long calc_percentage(unsigned long long value, unsigned long long total) { - if (total == 0) { - return 0; - } - return (unsigned long long)((NETDATA_DOUBLE)value / (NETDATA_DOUBLE)total * 100); -} - -// ---------------------------------------------------------------------------- -// 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, CGROUP_PROCFILE_FLAG); - 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)) { - collector_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), NULL); - - else if(unlikely(hash == system_hash && !strcmp(s, "system"))) - cp->system = str2ull(procfile_lineword(ff, i, 1), NULL); - } - - 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_cpu_stat(struct cpuacct_cpu_throttling *cp) { - if (unlikely(!cp->filename)) { - return; - } - - static procfile *ff = NULL; - ff = procfile_reopen(ff, cp->filename, NULL, CGROUP_PROCFILE_FLAG); - 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)) { - collector_error("CGROUP: file '%s' should have 3 lines.", cp->filename); - cp->updated = 0; - return; - } - - unsigned long long nr_periods_last = cp->nr_periods; - unsigned long long nr_throttled_last = cp->nr_throttled; - - for (unsigned long i = 0; i < lines; i++) { - char *s = procfile_lineword(ff, i, 0); - uint32_t hash = simple_hash(s); - - if (unlikely(hash == nr_periods_hash && !strcmp(s, "nr_periods"))) { - cp->nr_periods = str2ull(procfile_lineword(ff, i, 1), NULL); - } else if (unlikely(hash == nr_throttled_hash && !strcmp(s, "nr_throttled"))) { - cp->nr_throttled = str2ull(procfile_lineword(ff, i, 1), NULL); - } else if (unlikely(hash == throttled_time_hash && !strcmp(s, "throttled_time"))) { - cp->throttled_time = str2ull(procfile_lineword(ff, i, 1), NULL); - } - } - cp->nr_throttled_perc = - calc_percentage(calc_delta(cp->nr_throttled, nr_throttled_last), calc_delta(cp->nr_periods, nr_periods_last)); - - cp->updated = 1; - - if (unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO)) { - if (likely( - cp->nr_periods || cp->nr_throttled || cp->throttled_time || - netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) { - cp->enabled = CONFIG_BOOLEAN_YES; - } - } -} - -static inline void cgroup2_read_cpuacct_cpu_stat(struct cpuacct_stat *cp, struct cpuacct_cpu_throttling *cpt) { - static procfile *ff = NULL; - if (unlikely(!cp->filename)) { - return; - } - - ff = procfile_reopen(ff, cp->filename, NULL, CGROUP_PROCFILE_FLAG); - 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)) { - collector_error("CGROUP: file '%s' should have at least 3 lines.", cp->filename); - cp->updated = 0; - return; - } - - unsigned long long nr_periods_last = cpt->nr_periods; - unsigned long long nr_throttled_last = cpt->nr_throttled; - - for (unsigned long i = 0; i < lines; i++) { - char *s = procfile_lineword(ff, i, 0); - uint32_t hash = simple_hash(s); - - if (unlikely(hash == user_usec_hash && !strcmp(s, "user_usec"))) { - cp->user = str2ull(procfile_lineword(ff, i, 1), NULL); - } else if (unlikely(hash == system_usec_hash && !strcmp(s, "system_usec"))) { - cp->system = str2ull(procfile_lineword(ff, i, 1), NULL); - } else if (unlikely(hash == nr_periods_hash && !strcmp(s, "nr_periods"))) { - cpt->nr_periods = str2ull(procfile_lineword(ff, i, 1), NULL); - } else if (unlikely(hash == nr_throttled_hash && !strcmp(s, "nr_throttled"))) { - cpt->nr_throttled = str2ull(procfile_lineword(ff, i, 1), NULL); - } else if (unlikely(hash == throttled_usec_hash && !strcmp(s, "throttled_usec"))) { - cpt->throttled_time = str2ull(procfile_lineword(ff, i, 1), NULL) * 1000; // usec -> ns - } - } - cpt->nr_throttled_perc = - calc_percentage(calc_delta(cpt->nr_throttled, nr_throttled_last), calc_delta(cpt->nr_periods, nr_periods_last)); - - cp->updated = 1; - cpt->updated = 1; - - if (unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO)) { - if (likely(cp->user || cp->system || netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) { - cp->enabled = CONFIG_BOOLEAN_YES; - } - } - if (unlikely(cpt->enabled == CONFIG_BOOLEAN_AUTO)) { - if (likely( - cpt->nr_periods || cpt->nr_throttled || cpt->throttled_time || - netdata_zero_metrics_enabled == CONFIG_BOOLEAN_YES)) { - cpt->enabled = CONFIG_BOOLEAN_YES; - } - } -} - -static inline void cgroup_read_cpuacct_cpu_shares(struct cpuacct_cpu_shares *cp) { - if (unlikely(!cp->filename)) { - return; - } - - if (unlikely(read_single_number_file(cp->filename, &cp->shares))) { - cp->updated = 0; - cgroups_check = 1; - return; - } - - cp->updated = 1; - if (unlikely((cp->enabled == CONFIG_BOOLEAN_AUTO)) && - (cp->shares || 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, CGROUP_PROCFILE_FLAG); - 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)) { - collector_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), NULL); - 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, CGROUP_PROCFILE_FLAG); - 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)) { - collector_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), NULL); - - else if(unlikely(hash == Write_hash && !strcmp(s, "Write"))) - io->Write += str2ull(procfile_lineword(ff, i, 2), NULL); - -/* - 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, CGROUP_PROCFILE_FLAG); - 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)) { - collector_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), NULL); - io->Write += str2ull(procfile_lineword(ff, i, 4 + word_offset), NULL); - } - - 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, " =", CGROUP_PROCFILE_FLAG); - 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) { - collector_error("CGROUP: file '%s' should have 1+ lines.", res->filename); - res->updated = 0; - return; - } - - bool did_some = false, did_full = false; - - for(size_t l = 0; l < lines ;l++) { - const char *key = procfile_lineword(ff, l, 0); - if(strcmp(key, "some") == 0) { - res->some.share_time.value10 = strtod(procfile_lineword(ff, l, 2), NULL); - res->some.share_time.value60 = strtod(procfile_lineword(ff, l, 4), NULL); - res->some.share_time.value300 = strtod(procfile_lineword(ff, l, 6), NULL); - res->some.total_time.value_total = str2ull(procfile_lineword(ff, l, 8), NULL) / 1000; // us->ms - did_some = true; - } - else if(strcmp(key, "full") == 0) { - res->full.share_time.value10 = strtod(procfile_lineword(ff, l, 2), NULL); - res->full.share_time.value60 = strtod(procfile_lineword(ff, l, 4), NULL); - res->full.share_time.value300 = strtod(procfile_lineword(ff, l, 6), NULL); - res->full.total_time.value_total = str2ull(procfile_lineword(ff, l, 8), NULL) / 1000; // us->ms - did_full = true; - } - } - - res->updated = (did_full || did_some) ? 1 : 0; - - if(unlikely(res->some.enabled == CONFIG_BOOLEAN_AUTO)) - res->some.enabled = (did_some) ? CONFIG_BOOLEAN_YES : CONFIG_BOOLEAN_NO; - - if(unlikely(res->full.enabled == CONFIG_BOOLEAN_AUTO)) - res->full.enabled = (did_full) ? CONFIG_BOOLEAN_YES : 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, CGROUP_PROCFILE_FLAG); - 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)) { - collector_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); - arl_expect(mem->arl_base, "total_inactive_file", &mem->total_inactive_file); - } 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_expect(mem->arl_base, "inactive_file", &mem->total_inactive_file); - } - } - - 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 || mem->total_inactive_file)) - || (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 || mem->total_inactive_file)) - || 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; - } - - if (likely(mem->updated_usage_in_bytes && mem->updated_detailed)) { - mem->usage_in_bytes = - (mem->usage_in_bytes > mem->total_inactive_file) ? (mem->usage_in_bytes - mem->total_inactive_file) : 0; - } - - // 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 void cgroup_read_pids_current(struct pids *pids) { - pids->pids_current_updated = 0; - - if (unlikely(!pids->pids_current_filename)) - return; - - pids->pids_current_updated = !read_single_number_file(pids->pids_current_filename, &pids->pids_current); -} - -static inline void read_cgroup(struct cgroup *cg) { - netdata_log_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_cpuacct_cpu_stat(&cg->cpuacct_cpu_throttling); - cgroup_read_cpuacct_cpu_shares(&cg->cpuacct_cpu_shares); - 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); - cgroup_read_pids_current(&cg->pids); - } - 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_cpu_stat(&cg->cpuacct_stat, &cg->cpuacct_cpu_throttling); - cgroup_read_cpuacct_cpu_shares(&cg->cpuacct_cpu_shares); - cgroup2_read_pressure(&cg->cpu_pressure); - cgroup2_read_pressure(&cg->io_pressure); - cgroup2_read_pressure(&cg->memory_pressure); - cgroup2_read_pressure(&cg->irq_pressure); - cgroup_read_memory(&cg->memory, 1); - cgroup_read_pids_current(&cg->pids); - } -} - -static inline void read_all_discovered_cgroups(struct cgroup *root) { - netdata_log_debug(D_CGROUP, "reading metrics for all cgroups"); - - struct cgroup *cg; - for (cg = root; cg; cg = cg->next) { - if (cg->enabled && !cg->pending_renames) { - read_cgroup(cg); - } - } -} - -// update CPU and memory limits - -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) { - unsigned long ncpus = read_cpuset_cpus(*filename, get_system_cpus()); - if(ncpus) { - *value = ncpus; - ret = 0; - } - } - else if(value == &cg->cpu_cfs_period || value == &cg->cpu_cfs_quota) { - ret = read_single_number_file(*filename, value); - } - else ret = -1; - - if(ret) { - collector_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, CGROUP_PROCFILE_FLAG); - 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)) { - collector_error("CGROUP: file '%s' should have 1 lines.", cg->filename_cpu_cfs_quota); - return; - } - - cg->cpu_cfs_period = str2ull(procfile_lineword(ff, 0, 1), NULL); - cg->cpuset_cpus = get_system_cpus(); - - char *s = "max\n\0"; - if(strcmp(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), NULL); - } - netdata_log_debug(D_CGROUP, "CPU limits values: %llu %llu %llu", cg->cpu_cfs_period, cg->cpuset_cpus, cg->cpu_cfs_quota); - return; - -cpu_limits2_err: - collector_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(struct cgroup *cg) { - char **filename = &cg->filename_memory_limit; - const RRDSETVAR_ACQUIRED **chart_var = &cg->chart_var_memory_limit; - unsigned long long *value = &cg->memory_limit; - - if(*filename) { - if(unlikely(!*chart_var)) { - *chart_var = rrdsetvar_custom_chart_variable_add_and_acquire(cg->st_mem_usage, "memory_limit"); - if(!*chart_var) { - collector_error("Cannot create cgroup %s chart variable '%s'. Will not update its limit anymore.", cg->id, "memory_limit"); - freez(*filename); - *filename = NULL; - } - } - - if(*filename && *chart_var) { - if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { - if(read_single_number_file(*filename, value)) { - collector_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(cg->st_mem_usage, *chart_var, (NETDATA_DOUBLE)(*value) / (1024.0 * 1024.0)); - return 1; - } - } else { - char buffer[30 + 1]; - int ret = read_file(*filename, buffer, 30); - if(ret) { - collector_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(strcmp(s, buffer) == 0){ - *value = UINT64_MAX; - rrdsetvar_custom_chart_variable_set(cg->st_mem_usage, *chart_var, (NETDATA_DOUBLE)(*value) / (1024.0 * 1024.0)); - return 1; - } - *value = str2ull(buffer, NULL); - rrdsetvar_custom_chart_variable_set(cg->st_mem_usage, *chart_var, (NETDATA_DOUBLE)(*value) / (1024.0 * 1024.0)); - return 1; - } - } - } - return 0; -} - -// ---------------------------------------------------------------------------- -// generate charts - -void update_cgroup_systemd_services_charts() { - for (struct cgroup *cg = cgroup_root; cg; cg = cg->next) { - if (unlikely(!cg->enabled || cg->pending_renames || !is_cgroup_systemd_service(cg))) - continue; - - if (likely(cg->cpuacct_stat.updated)) { - update_cpu_utilization_chart(cg); - } - if (likely(cg->memory.updated_msw_usage_in_bytes)) { - update_mem_usage_chart(cg); - } - if (likely(cg->memory.updated_failcnt)) { - update_mem_failcnt_chart(cg); - } - if (likely(cg->memory.updated_detailed)) { - update_mem_usage_detailed_chart(cg); - update_mem_writeback_chart(cg); - update_mem_pgfaults_chart(cg); - if (!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { - update_mem_activity_chart(cg); - } - } - if (likely(cg->io_service_bytes.updated)) { - update_io_serviced_bytes_chart(cg); - } - if (likely(cg->io_serviced.updated)) { - update_io_serviced_ops_chart(cg); - } - if (likely(cg->throttle_io_service_bytes.updated)) { - update_throttle_io_serviced_bytes_chart(cg); - } - if (likely(cg->throttle_io_serviced.updated)) { - update_throttle_io_serviced_ops_chart(cg); - } - if (likely(cg->io_queued.updated)) { - update_io_queued_ops_chart(cg); - } - if (likely(cg->io_merged.updated)) { - update_io_merged_ops_chart(cg); - } - - if (likely(cg->pids.pids_current_updated)) { - update_pids_current_chart(cg); - } - - cg->function_ready = true; - } -} - -void update_cgroup_charts() { - for (struct cgroup *cg = cgroup_root; cg; cg = cg->next) { - if(unlikely(!cg->enabled || cg->pending_renames || is_cgroup_systemd_service(cg))) - continue; - - if (likely(cg->cpuacct_stat.updated && cg->cpuacct_stat.enabled == CONFIG_BOOLEAN_YES)) { - update_cpu_utilization_chart(cg); - - 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_add_and_acquire(cg->st_cpu, "cpu_limit"); - if(!cg->chart_var_cpu_limit) { - collector_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 { - NETDATA_DOUBLE 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 = (NETDATA_DOUBLE)cg->cpu_cfs_quota / (NETDATA_DOUBLE)cg->cpu_cfs_period; - - if(unlikely(quota > 0 && quota < cg->cpuset_cpus)) - value = quota * 100; - else - value = (NETDATA_DOUBLE)cg->cpuset_cpus * 100; - } - if(likely(value)) { - update_cpu_utilization_limit_chart(cg, value); - } else { - if (unlikely(cg->st_cpu_limit)) { - rrdset_is_obsolete___safe_from_collector_thread(cg->st_cpu_limit); - cg->st_cpu_limit = NULL; - } - rrdsetvar_custom_chart_variable_set(cg->st_cpu, cg->chart_var_cpu_limit, NAN); - } - } - } - } - - if (likely(cg->cpuacct_cpu_throttling.updated && cg->cpuacct_cpu_throttling.enabled == CONFIG_BOOLEAN_YES)) { - update_cpu_throttled_chart(cg); - update_cpu_throttled_duration_chart(cg); - } - - if (likely(cg->cpuacct_cpu_shares.updated && cg->cpuacct_cpu_shares.enabled == CONFIG_BOOLEAN_YES)) { - update_cpu_shares_chart(cg); - } - - if (likely(cg->cpuacct_usage.updated && cg->cpuacct_usage.enabled == CONFIG_BOOLEAN_YES)) { - update_cpu_per_core_usage_chart(cg); - } - - if (likely(cg->memory.updated_detailed && cg->memory.enabled_detailed == CONFIG_BOOLEAN_YES)) { - update_mem_usage_detailed_chart(cg); - update_mem_writeback_chart(cg); - - if(!(cg->options & CGROUP_OPTIONS_IS_UNIFIED)) { - update_mem_activity_chart(cg); - } - - update_mem_pgfaults_chart(cg); - } - - if (likely(cg->memory.updated_usage_in_bytes && cg->memory.enabled_usage_in_bytes == CONFIG_BOOLEAN_YES)) { - update_mem_usage_chart(cg); - - // FIXME: this if should be only for unlimited charts - if(likely(host_ram_total)) { - // FIXME: do we need to update mem limits on every data collection? - if (likely(update_memory_limits(cg))) { - - unsigned long long memory_limit = host_ram_total; - if (unlikely(cg->memory_limit < host_ram_total)) - memory_limit = cg->memory_limit; - - update_mem_usage_limit_chart(cg, memory_limit); - update_mem_utilization_chart(cg, memory_limit); - } else { - if (unlikely(cg->st_mem_usage_limit)) { - rrdset_is_obsolete___safe_from_collector_thread(cg->st_mem_usage_limit); - cg->st_mem_usage_limit = NULL; - } - - if (unlikely(cg->st_mem_utilization)) { - rrdset_is_obsolete___safe_from_collector_thread(cg->st_mem_utilization); - cg->st_mem_utilization = NULL; - } - } - } - } - - if (likely(cg->memory.updated_failcnt && cg->memory.enabled_failcnt == CONFIG_BOOLEAN_YES)) { - update_mem_failcnt_chart(cg); - } - - if (likely(cg->io_service_bytes.updated && cg->io_service_bytes.enabled == CONFIG_BOOLEAN_YES)) { - update_io_serviced_bytes_chart(cg); - } - - if (likely(cg->io_serviced.updated && cg->io_serviced.enabled == CONFIG_BOOLEAN_YES)) { - update_io_serviced_ops_chart(cg); - } - - if (likely(cg->throttle_io_service_bytes.updated && cg->throttle_io_service_bytes.enabled == CONFIG_BOOLEAN_YES)) { - update_throttle_io_serviced_bytes_chart(cg); - } - - if (likely(cg->throttle_io_serviced.updated && cg->throttle_io_serviced.enabled == CONFIG_BOOLEAN_YES)) { - update_throttle_io_serviced_ops_chart(cg); - } - - if (likely(cg->io_queued.updated && cg->io_queued.enabled == CONFIG_BOOLEAN_YES)) { - update_io_queued_ops_chart(cg); - } - - if (likely(cg->io_merged.updated && cg->io_merged.enabled == CONFIG_BOOLEAN_YES)) { - update_io_merged_ops_chart(cg); - } - - if (likely(cg->pids.pids_current_updated)) { - update_pids_current_chart(cg); - } - - if (cg->options & CGROUP_OPTIONS_IS_UNIFIED) { - if (likely(cg->cpu_pressure.updated)) { - if (cg->cpu_pressure.some.enabled) { - update_cpu_some_pressure_chart(cg); - update_cpu_some_pressure_stall_time_chart(cg); - } - if (cg->cpu_pressure.full.enabled) { - update_cpu_full_pressure_chart(cg); - update_cpu_full_pressure_stall_time_chart(cg); - } - } - - if (likely(cg->memory_pressure.updated)) { - if (cg->memory_pressure.some.enabled) { - update_mem_some_pressure_chart(cg); - update_mem_some_pressure_stall_time_chart(cg); - } - if (cg->memory_pressure.full.enabled) { - update_mem_full_pressure_chart(cg); - update_mem_full_pressure_stall_time_chart(cg); - } - } - - if (likely(cg->irq_pressure.updated)) { - if (cg->irq_pressure.some.enabled) { - update_irq_some_pressure_chart(cg); - update_irq_some_pressure_stall_time_chart(cg); - } - if (cg->irq_pressure.full.enabled) { - update_irq_full_pressure_chart(cg); - update_irq_full_pressure_stall_time_chart(cg); - } - } - - if (likely(cg->io_pressure.updated)) { - if (cg->io_pressure.some.enabled) { - update_io_some_pressure_chart(cg); - update_io_some_pressure_stall_time_chart(cg); - } - if (cg->io_pressure.full.enabled) { - update_io_full_pressure_chart(cg); - update_io_full_pressure_stall_time_chart(cg); - } - } - } - - cg->function_ready = true; - } -} - -// ---------------------------------------------------------------------------- -// cgroups main - -static void cgroup_main_cleanup(void *ptr) { - worker_unregister(); - - struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr; - static_thread->enabled = NETDATA_MAIN_THREAD_EXITING; - - collector_info("cleaning up..."); - - usec_t max = 2 * USEC_PER_SEC, step = 50000; - - if (!__atomic_load_n(&discovery_thread.exited, __ATOMIC_RELAXED)) { - collector_info("waiting for discovery thread to finish..."); - while (!__atomic_load_n(&discovery_thread.exited, __ATOMIC_RELAXED) && max > 0) { - uv_mutex_lock(&discovery_thread.mutex); - uv_cond_signal(&discovery_thread.cond_var); - uv_mutex_unlock(&discovery_thread.mutex); - max -= step; - sleep_usec(step); - } - } - - if (shm_mutex_cgroup_ebpf != SEM_FAILED) { - sem_close(shm_mutex_cgroup_ebpf); - } - - if (shm_cgroup_ebpf.header) { - shm_cgroup_ebpf.header->cgroup_root_count = 0; - munmap(shm_cgroup_ebpf.header, shm_cgroup_ebpf.header->body_length); - } - - if (shm_fd_cgroup_ebpf > 0) { - close(shm_fd_cgroup_ebpf); - } - - static_thread->enabled = NETDATA_MAIN_THREAD_EXITED; -} - -void cgroup_read_host_total_ram() { - 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 = procfile_readall(ff)) && procfile_lines(ff) && !strncmp(procfile_word(ff, 0), "MemTotal", 8))) - host_ram_total = str2ull(procfile_word(ff, 1), NULL) * 1024; - else - collector_error("Cannot read file %s. Will not create RAM limit charts.", filename); - - procfile_close(ff); -} - -void *cgroups_main(void *ptr) { - worker_register("CGROUPS"); - worker_register_job_name(WORKER_CGROUPS_LOCK, "lock"); - worker_register_job_name(WORKER_CGROUPS_READ, "read"); - worker_register_job_name(WORKER_CGROUPS_CHART, "chart"); - - netdata_thread_cleanup_push(cgroup_main_cleanup, ptr); - - if (getenv("KUBERNETES_SERVICE_HOST") != NULL && getenv("KUBERNETES_SERVICE_PORT") != NULL) { - is_inside_k8s = 1; - cgroup_enable_cpuacct_cpu_shares = CONFIG_BOOLEAN_YES; - } - - read_cgroup_plugin_configuration(); - - cgroup_read_host_total_ram(); - - netdata_cgroup_ebpf_initialize_shm(); - - if (uv_mutex_init(&cgroup_root_mutex)) { - collector_error("CGROUP: cannot initialize mutex for the main cgroup list"); - goto exit; - } - - discovery_thread.exited = 0; - - if (uv_mutex_init(&discovery_thread.mutex)) { - collector_error("CGROUP: cannot initialize mutex for discovery thread"); - goto exit; - } - if (uv_cond_init(&discovery_thread.cond_var)) { - collector_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) { - collector_error("CGROUP: cannot create thread worker. uv_thread_create(): %s", uv_strerror(error)); - goto exit; - } - - uv_thread_set_name_np(discovery_thread.thread, "P[cgroups]"); - - // we register this only on localhost - // for the other nodes, the origin server should register it - rrd_collector_started(); // this creates a collector that runs for as long as netdata runs - cgroup_netdev_link_init(); - rrd_function_add(localhost, NULL, "containers-vms", 10, RRDFUNCTIONS_CGTOP_HELP, true, cgroup_function_cgroup_top, NULL); - rrd_function_add(localhost, NULL, "systemd-services", 10, RRDFUNCTIONS_CGTOP_HELP, true, cgroup_function_systemd_top, NULL); - - 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; - - netdata_thread_disable_cancelability(); - - while(service_running(SERVICE_COLLECTORS)) { - worker_is_idle(); - - usec_t hb_dt = heartbeat_next(&hb, step); - if (unlikely(!service_running(SERVICE_COLLECTORS))) - break; - - find_dt += hb_dt; - if (unlikely(find_dt >= find_every || (!is_inside_k8s && cgroups_check))) { - uv_mutex_lock(&discovery_thread.mutex); - uv_cond_signal(&discovery_thread.cond_var); - uv_mutex_unlock(&discovery_thread.mutex); - find_dt = 0; - cgroups_check = 0; - } - - worker_is_busy(WORKER_CGROUPS_LOCK); - uv_mutex_lock(&cgroup_root_mutex); - - worker_is_busy(WORKER_CGROUPS_READ); - read_all_discovered_cgroups(cgroup_root); - - if (unlikely(!service_running(SERVICE_COLLECTORS))) { - uv_mutex_unlock(&cgroup_root_mutex); - break; - } - - worker_is_busy(WORKER_CGROUPS_CHART); - - update_cgroup_charts(); - if (cgroup_enable_systemd_services) - update_cgroup_systemd_services_charts(); - - if (unlikely(!service_running(SERVICE_COLLECTORS))) { - uv_mutex_unlock(&cgroup_root_mutex); - break; - } - - worker_is_idle(); - uv_mutex_unlock(&cgroup_root_mutex); - } - -exit: - netdata_thread_cleanup_pop(1); - return NULL; -} |