diff options
Diffstat (limited to 'src/database/rrdhost.c')
| -rw-r--r-- | src/database/rrdhost.c | 1913 |
1 files changed, 1913 insertions, 0 deletions
diff --git a/src/database/rrdhost.c b/src/database/rrdhost.c new file mode 100644 index 000000000..6bf2c2551 --- /dev/null +++ b/src/database/rrdhost.c @@ -0,0 +1,1913 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#define NETDATA_RRD_INTERNALS +#include "rrd.h" + +#if RRD_STORAGE_TIERS != 5 +#error RRD_STORAGE_TIERS is not 5 - you need to update the grouping iterations per tier +#endif + +static void rrdhost_streaming_sender_structures_init(RRDHOST *host); + +bool dbengine_enabled = false; // will become true if and when dbengine is initialized +size_t storage_tiers = 3; +bool use_direct_io = true; +size_t storage_tiers_grouping_iterations[RRD_STORAGE_TIERS] = {1, 60, 60, 60, 60}; +size_t storage_tiers_collection_per_sec[RRD_STORAGE_TIERS] = {1, 60, 3600, 8 * 3600, 24 * 3600}; +double storage_tiers_retention_days[RRD_STORAGE_TIERS] = {14, 90, 2 * 365, 2 * 365, 2 * 365}; + +size_t get_tier_grouping(size_t tier) { + if(unlikely(tier >= storage_tiers)) tier = storage_tiers - 1; + + size_t grouping = 1; + // first tier is always 1 iteration of whatever update every the chart has + for(size_t i = 1; i <= tier ;i++) + grouping *= storage_tiers_grouping_iterations[i]; + + return grouping; +} + +RRDHOST *localhost = NULL; +netdata_rwlock_t rrd_rwlock = NETDATA_RWLOCK_INITIALIZER; + +time_t rrdset_free_obsolete_time_s = 3600; +time_t rrdhost_free_orphan_time_s = 3600; +time_t rrdhost_free_ephemeral_time_s = 86400; + +RRDHOST *find_host_by_node_id(char *node_id) { + + nd_uuid_t node_uuid; + if (unlikely(!node_id || uuid_parse(node_id, node_uuid))) + return NULL; + + RRDHOST *host, *ret = NULL; + dfe_start_read(rrdhost_root_index, host) { + if (host->node_id && uuid_eq(*host->node_id, node_uuid)) { + ret = host; + break; + } + } + dfe_done(host); + + return ret; +} + +// ---------------------------------------------------------------------------- +// RRDHOST indexes management + +DICTIONARY *rrdhost_root_index = NULL; +static DICTIONARY *rrdhost_root_index_hostname = NULL; + +static inline void rrdhost_init() { + if(unlikely(!rrdhost_root_index)) { + rrdhost_root_index = dictionary_create_advanced( + DICT_OPTION_NAME_LINK_DONT_CLONE | DICT_OPTION_VALUE_LINK_DONT_CLONE | DICT_OPTION_DONT_OVERWRITE_VALUE, + &dictionary_stats_category_rrdhost, 0); + } + + if(unlikely(!rrdhost_root_index_hostname)) { + rrdhost_root_index_hostname = dictionary_create_advanced( + DICT_OPTION_NAME_LINK_DONT_CLONE | DICT_OPTION_VALUE_LINK_DONT_CLONE | DICT_OPTION_DONT_OVERWRITE_VALUE, + &dictionary_stats_category_rrdhost, 0); + } +} + +RRDHOST_ACQUIRED *rrdhost_find_and_acquire(const char *machine_guid) { + return (RRDHOST_ACQUIRED *)dictionary_get_and_acquire_item(rrdhost_root_index, machine_guid); +} + +RRDHOST *rrdhost_acquired_to_rrdhost(RRDHOST_ACQUIRED *rha) { + if(unlikely(!rha)) + return NULL; + + return (RRDHOST *) dictionary_acquired_item_value((const DICTIONARY_ITEM *)rha); +} + +void rrdhost_acquired_release(RRDHOST_ACQUIRED *rha) { + if(unlikely(!rha)) + return; + + dictionary_acquired_item_release(rrdhost_root_index, (const DICTIONARY_ITEM *)rha); +} + +// ---------------------------------------------------------------------------- +// RRDHOST index by UUID + +inline size_t rrdhost_hosts_available(void) { + return dictionary_entries(rrdhost_root_index); +} + +inline RRDHOST *rrdhost_find_by_guid(const char *guid) { + return dictionary_get(rrdhost_root_index, guid); +} + +static inline RRDHOST *rrdhost_index_add_by_guid(RRDHOST *host) { + RRDHOST *ret_machine_guid = dictionary_set(rrdhost_root_index, host->machine_guid, host, sizeof(RRDHOST)); + if(ret_machine_guid == host) + rrdhost_option_set(host, RRDHOST_OPTION_INDEXED_MACHINE_GUID); + else { + rrdhost_option_clear(host, RRDHOST_OPTION_INDEXED_MACHINE_GUID); + nd_log(NDLS_DAEMON, NDLP_NOTICE, + "RRDHOST: host with machine guid '%s' is already indexed. Not adding it again.", + host->machine_guid); + } + + return host; +} + +static void rrdhost_index_del_by_guid(RRDHOST *host) { + if(rrdhost_option_check(host, RRDHOST_OPTION_INDEXED_MACHINE_GUID)) { + if(!dictionary_del(rrdhost_root_index, host->machine_guid)) + nd_log(NDLS_DAEMON, NDLP_NOTICE, + "RRDHOST: failed to delete machine guid '%s' from index", + host->machine_guid); + + rrdhost_option_clear(host, RRDHOST_OPTION_INDEXED_MACHINE_GUID); + } +} + +// ---------------------------------------------------------------------------- +// RRDHOST index by hostname + +inline RRDHOST *rrdhost_find_by_hostname(const char *hostname) { + if(unlikely(!strcmp(hostname, "localhost"))) + return localhost; + + return dictionary_get(rrdhost_root_index_hostname, hostname); +} + +static inline void rrdhost_index_del_hostname(RRDHOST *host) { + if(unlikely(!host->hostname)) return; + + if(rrdhost_option_check(host, RRDHOST_OPTION_INDEXED_HOSTNAME)) { + if(!dictionary_del(rrdhost_root_index_hostname, rrdhost_hostname(host))) + nd_log(NDLS_DAEMON, NDLP_NOTICE, + "RRDHOST: failed to delete hostname '%s' from index", + rrdhost_hostname(host)); + + rrdhost_option_clear(host, RRDHOST_OPTION_INDEXED_HOSTNAME); + } +} + +static inline RRDHOST *rrdhost_index_add_hostname(RRDHOST *host) { + if(!host->hostname) return host; + + RRDHOST *ret_hostname = dictionary_set(rrdhost_root_index_hostname, rrdhost_hostname(host), host, sizeof(RRDHOST)); + if(ret_hostname == host) + rrdhost_option_set(host, RRDHOST_OPTION_INDEXED_HOSTNAME); + else { + //have the same hostname but it's not the same host + //keep the new one only if the old one is orphan or archived + if (rrdhost_flag_check(ret_hostname, RRDHOST_FLAG_ORPHAN) || rrdhost_flag_check(ret_hostname, RRDHOST_FLAG_ARCHIVED)) { + rrdhost_index_del_hostname(ret_hostname); + rrdhost_index_add_hostname(host); + } + } + + return host; +} + +// ---------------------------------------------------------------------------- +// RRDHOST - internal helpers + +static inline void rrdhost_init_hostname(RRDHOST *host, const char *hostname, bool add_to_index) { + if(unlikely(hostname && !*hostname)) hostname = NULL; + + if(host->hostname && hostname && !strcmp(rrdhost_hostname(host), hostname)) + return; + + rrdhost_index_del_hostname(host); + + STRING *old = host->hostname; + host->hostname = string_strdupz(hostname?hostname:"localhost"); + string_freez(old); + + if(add_to_index) + rrdhost_index_add_hostname(host); +} + +static inline void rrdhost_init_os(RRDHOST *host, const char *os) { + if(host->os && os && !strcmp(rrdhost_os(host), os)) + return; + + STRING *old = host->os; + host->os = string_strdupz(os?os:"unknown"); + string_freez(old); +} + +static inline void rrdhost_init_timezone(RRDHOST *host, const char *timezone, const char *abbrev_timezone, int32_t utc_offset) { + if (host->timezone && timezone && !strcmp(rrdhost_timezone(host), timezone) && host->abbrev_timezone && abbrev_timezone && + !strcmp(rrdhost_abbrev_timezone(host), abbrev_timezone) && host->utc_offset == utc_offset) + return; + + STRING *old = host->timezone; + host->timezone = string_strdupz((timezone && *timezone)?timezone:"unknown"); + string_freez(old); + + old = (void *)host->abbrev_timezone; + host->abbrev_timezone = string_strdupz((abbrev_timezone && *abbrev_timezone) ? abbrev_timezone : "UTC"); + string_freez(old); + + host->utc_offset = utc_offset; +} + +void set_host_properties(RRDHOST *host, int update_every, RRD_MEMORY_MODE memory_mode, + const char *registry_hostname, const char *os, const char *tzone, + const char *abbrev_tzone, int32_t utc_offset, const char *prog_name, + const char *prog_version) +{ + + host->rrd_update_every = update_every; + host->rrd_memory_mode = memory_mode; + + rrdhost_init_os(host, os); + rrdhost_init_timezone(host, tzone, abbrev_tzone, utc_offset); + + host->program_name = string_strdupz((prog_name && *prog_name) ? prog_name : "unknown"); + host->program_version = string_strdupz((prog_version && *prog_version) ? prog_version : "unknown"); + host->registry_hostname = string_strdupz((registry_hostname && *registry_hostname) ? registry_hostname : rrdhost_hostname(host)); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - add a host + +static void rrdhost_initialize_rrdpush_sender(RRDHOST *host, + unsigned int rrdpush_enabled, + char *rrdpush_destination, + char *rrdpush_api_key, + char *rrdpush_send_charts_matching +) { + if(rrdhost_flag_check(host, RRDHOST_FLAG_RRDPUSH_SENDER_INITIALIZED)) return; + + if(rrdpush_enabled && rrdpush_destination && *rrdpush_destination && rrdpush_api_key && *rrdpush_api_key) { + rrdhost_flag_set(host, RRDHOST_FLAG_RRDPUSH_SENDER_INITIALIZED); + + rrdhost_streaming_sender_structures_init(host); + +#ifdef ENABLE_HTTPS + host->sender->ssl = NETDATA_SSL_UNSET_CONNECTION; +#endif + + host->rrdpush_send_destination = strdupz(rrdpush_destination); + rrdpush_destinations_init(host); + + host->rrdpush_send_api_key = strdupz(rrdpush_api_key); + host->rrdpush_send_charts_matching = simple_pattern_create(rrdpush_send_charts_matching, NULL, + SIMPLE_PATTERN_EXACT, true); + + rrdhost_option_set(host, RRDHOST_OPTION_SENDER_ENABLED); + } + else + rrdhost_option_clear(host, RRDHOST_OPTION_SENDER_ENABLED); +} + +#ifdef ENABLE_DBENGINE +// +// true on success +// +static bool create_dbengine_directory(RRDHOST *host, const char *dbenginepath) +{ + int ret = mkdir(dbenginepath, 0775); + if (ret != 0 && errno != EEXIST) { + nd_log(NDLS_DAEMON, NDLP_CRIT, "Host '%s': cannot create directory '%s'", rrdhost_hostname(host), dbenginepath); + return false; + } + return true; +} + +static RRDHOST *prepare_host_for_unittest(RRDHOST *host) +{ + char dbenginepath[FILENAME_MAX + 1]; + + if (host->cache_dir) + freez(host->cache_dir); + + snprintfz(dbenginepath, FILENAME_MAX, "%s/%s", netdata_configured_cache_dir, host->machine_guid); + host->cache_dir = strdupz(dbenginepath); + + int ret = 0; + + bool initialized; + if ((initialized = create_dbengine_directory(host, dbenginepath))) { + snprintfz(dbenginepath, FILENAME_MAX, "%s/dbengine", host->cache_dir); + + if ((initialized = create_dbengine_directory(host, dbenginepath))) { + host->db[0].mode = RRD_MEMORY_MODE_DBENGINE; + host->db[0].eng = storage_engine_get(host->db[0].mode); + host->db[0].tier_grouping = get_tier_grouping(0); + + ret = rrdeng_init( + (struct rrdengine_instance **)&host->db[0].si, + dbenginepath, + default_rrdeng_disk_quota_mb, + 0, + 0); // may fail here for legacy dbengine initialization + + initialized = (ret == 0); + + if (initialized) + rrdeng_readiness_wait((struct rrdengine_instance *)host->db[0].si); + } + } + + if (!initialized) { + nd_log( + NDLS_DAEMON, + NDLP_CRIT, + "Host '%s': cannot initialize host with machine guid '%s'. Failed to initialize DB engine at '%s'.", + rrdhost_hostname(host), + host->machine_guid, + host->cache_dir); + + rrd_wrlock(); + rrdhost_free___while_having_rrd_wrlock(host, true); + rrd_wrunlock(); + return NULL; + } + return host; +} +#endif + +static RRDHOST *rrdhost_create( + const char *hostname, + const char *registry_hostname, + const char *guid, + const char *os, + const char *timezone, + const char *abbrev_timezone, + int32_t utc_offset, + const char *prog_name, + const char *prog_version, + int update_every, + long entries, + RRD_MEMORY_MODE memory_mode, + unsigned int health_enabled, + unsigned int rrdpush_enabled, + char *rrdpush_destination, + char *rrdpush_api_key, + char *rrdpush_send_charts_matching, + bool rrdpush_enable_replication, + time_t rrdpush_seconds_to_replicate, + time_t rrdpush_replication_step, + struct rrdhost_system_info *system_info, + int is_localhost, + bool archived +) { + if(memory_mode == RRD_MEMORY_MODE_DBENGINE && !dbengine_enabled) { + nd_log(NDLS_DAEMON, NDLP_ERR, + "memory mode 'dbengine' is not enabled, but host '%s' is configured for it. Falling back to 'alloc'", + hostname); + + memory_mode = RRD_MEMORY_MODE_ALLOC; + } + + RRDHOST *host = callocz(1, sizeof(RRDHOST)); + __atomic_add_fetch(&netdata_buffers_statistics.rrdhost_allocations_size, sizeof(RRDHOST), __ATOMIC_RELAXED); + + strncpyz(host->machine_guid, guid, GUID_LEN + 1); + + set_host_properties( + host, + (update_every > 0) ? update_every : 1, + memory_mode, + registry_hostname, + os, + timezone, + abbrev_timezone, + utc_offset, + prog_name, + prog_version); + + rrdhost_init_hostname(host, hostname, false); + + host->rrd_history_entries = align_entries_to_pagesize(memory_mode, entries); + host->health.health_enabled = ((memory_mode == RRD_MEMORY_MODE_NONE)) ? 0 : health_enabled; + + netdata_mutex_init(&host->aclk_state_lock); + netdata_mutex_init(&host->receiver_lock); + + if (likely(!archived)) { + rrd_functions_host_init(host); + host->last_connected = now_realtime_sec(); + host->rrdlabels = rrdlabels_create(); + rrdhost_initialize_rrdpush_sender( + host, rrdpush_enabled, rrdpush_destination, rrdpush_api_key, rrdpush_send_charts_matching); + } + + if(rrdpush_enable_replication) + rrdhost_option_set(host, RRDHOST_OPTION_REPLICATION); + else + rrdhost_option_clear(host, RRDHOST_OPTION_REPLICATION); + + host->rrdpush_seconds_to_replicate = rrdpush_seconds_to_replicate; + host->rrdpush_replication_step = rrdpush_replication_step; + host->rrdpush_receiver_replication_percent = 100.0; + + switch(memory_mode) { + default: + case RRD_MEMORY_MODE_ALLOC: + case RRD_MEMORY_MODE_RAM: + if(host->rrdpush_seconds_to_replicate > (time_t) host->rrd_history_entries * (time_t) host->rrd_update_every) + host->rrdpush_seconds_to_replicate = (time_t) host->rrd_history_entries * (time_t) host->rrd_update_every; + break; + + case RRD_MEMORY_MODE_DBENGINE: + break; + } + + host->system_info = system_info; + + rrdset_index_init(host); + + if(is_localhost) + host->cache_dir = strdupz(netdata_configured_cache_dir); + + // this is also needed for custom host variables - not only health + if(!host->rrdvars) + host->rrdvars = rrdvariables_create(); + + if (likely(!uuid_parse(host->machine_guid, host->host_uuid))) + sql_load_node_id(host); + else + error_report("Host machine GUID %s is not valid", host->machine_guid); + + rrdcalc_rrdhost_index_init(host); + + if (host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { +#ifdef ENABLE_DBENGINE + if (unittest_running) { + host = prepare_host_for_unittest(host); + if (!host) + return NULL; + } + else { + for(size_t tier = 0; tier < storage_tiers ; tier++) { + host->db[tier].mode = RRD_MEMORY_MODE_DBENGINE; + host->db[tier].eng = storage_engine_get(host->db[tier].mode); + host->db[tier].si = (STORAGE_INSTANCE *)multidb_ctx[tier]; + host->db[tier].tier_grouping = get_tier_grouping(tier); + } + } +#else + fatal("RRD_MEMORY_MODE_DBENGINE is not supported in this platform."); +#endif + } + else { + host->db[0].mode = host->rrd_memory_mode; + host->db[0].eng = storage_engine_get(host->db[0].mode); + host->db[0].si = NULL; + host->db[0].tier_grouping = get_tier_grouping(0); + +#ifdef ENABLE_DBENGINE + // the first tier is reserved for the non-dbengine modes + for(size_t tier = 1; tier < storage_tiers ; tier++) { + host->db[tier].mode = RRD_MEMORY_MODE_DBENGINE; + host->db[tier].eng = storage_engine_get(host->db[tier].mode); + host->db[tier].si = (STORAGE_INSTANCE *) multidb_ctx[tier]; + host->db[tier].tier_grouping = get_tier_grouping(tier); + } +#endif + } + + // ------------------------------------------------------------------------ + // init new ML host and update system_info to let upstreams know + // about ML functionality + // + + if (is_localhost && host->system_info) { + host->system_info->ml_capable = ml_capable(); + host->system_info->ml_enabled = ml_enabled(host); + host->system_info->mc_version = enable_metric_correlations ? metric_correlations_version : 0; + } + + // ------------------------------------------------------------------------ + // link it and add it to the index + + rrd_wrlock(); + + RRDHOST *t = rrdhost_index_add_by_guid(host); + if(t != host) { + nd_log(NDLS_DAEMON, NDLP_NOTICE, + "Host '%s': cannot add host with machine guid '%s' to index. It already exists as host '%s' with machine guid '%s'.", + rrdhost_hostname(host), host->machine_guid, rrdhost_hostname(t), t->machine_guid); + + if (!is_localhost) + rrdhost_free___while_having_rrd_wrlock(host, true); + + rrd_wrunlock(); + return NULL; + } + + rrdhost_index_add_hostname(host); + + if(is_localhost) + DOUBLE_LINKED_LIST_PREPEND_ITEM_UNSAFE(localhost, host, prev, next); + else + DOUBLE_LINKED_LIST_APPEND_ITEM_UNSAFE(localhost, host, prev, next); + + rrd_wrunlock(); + + // ------------------------------------------------------------------------ + + nd_log(NDLS_DAEMON, NDLP_INFO, + "Host '%s' (at registry as '%s') with guid '%s' initialized" + ", os '%s'" + ", timezone '%s'" + ", program_name '%s'" + ", program_version '%s'" + ", update every %d" + ", memory mode %s" + ", history entries %d" + ", streaming %s" + " (to '%s' with api key '%s')" + ", health %s" + ", cache_dir '%s'" + ", alarms default handler '%s'" + ", alarms default recipient '%s'" + , rrdhost_hostname(host) + , rrdhost_registry_hostname(host) + , host->machine_guid + , rrdhost_os(host) + , rrdhost_timezone(host) + , rrdhost_program_name(host) + , rrdhost_program_version(host) + , host->rrd_update_every + , rrd_memory_mode_name(host->rrd_memory_mode) + , host->rrd_history_entries + , rrdhost_has_rrdpush_sender_enabled(host)?"enabled":"disabled" + , host->rrdpush_send_destination?host->rrdpush_send_destination:"" + , host->rrdpush_send_api_key?host->rrdpush_send_api_key:"" + , host->health.health_enabled?"enabled":"disabled" + , host->cache_dir + , string2str(host->health.health_default_exec) + , string2str(host->health.health_default_recipient) + ); + + if(!archived) { + metaqueue_host_update_info(host); + rrdhost_load_rrdcontext_data(host); +// rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_INFO | RRDHOST_FLAG_METADATA_UPDATE); + ml_host_new(host); + } else + rrdhost_flag_set(host, RRDHOST_FLAG_PENDING_CONTEXT_LOAD | RRDHOST_FLAG_ARCHIVED | RRDHOST_FLAG_ORPHAN); + + return host; +} + +static void rrdhost_update(RRDHOST *host + , const char *hostname + , const char *registry_hostname + , const char *guid + , const char *os + , const char *timezone + , const char *abbrev_timezone + , int32_t utc_offset + , const char *prog_name + , const char *prog_version + , int update_every + , long history + , RRD_MEMORY_MODE mode + , unsigned int health_enabled + , unsigned int rrdpush_enabled + , char *rrdpush_destination + , char *rrdpush_api_key + , char *rrdpush_send_charts_matching + , bool rrdpush_enable_replication + , time_t rrdpush_seconds_to_replicate + , time_t rrdpush_replication_step + , struct rrdhost_system_info *system_info +) +{ + UNUSED(guid); + + spinlock_lock(&host->rrdhost_update_lock); + + host->health.health_enabled = (mode == RRD_MEMORY_MODE_NONE) ? 0 : health_enabled; + + { + struct rrdhost_system_info *old = host->system_info; + host->system_info = system_info; + rrdhost_flag_set(host, RRDHOST_FLAG_METADATA_INFO | RRDHOST_FLAG_METADATA_CLAIMID | RRDHOST_FLAG_METADATA_UPDATE); + rrdhost_system_info_free(old); + } + + rrdhost_init_os(host, os); + rrdhost_init_timezone(host, timezone, abbrev_timezone, utc_offset); + + string_freez(host->registry_hostname); + host->registry_hostname = string_strdupz((registry_hostname && *registry_hostname)?registry_hostname:hostname); + + if(strcmp(rrdhost_hostname(host), hostname) != 0) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Host '%s' has been renamed to '%s'. If this is not intentional it may mean multiple hosts are using the same machine_guid.", + rrdhost_hostname(host), hostname); + + rrdhost_init_hostname(host, hostname, true); + } else { + rrdhost_index_add_hostname(host); + } + + if(strcmp(rrdhost_program_name(host), prog_name) != 0) { + nd_log(NDLS_DAEMON, NDLP_NOTICE, + "Host '%s' switched program name from '%s' to '%s'", + rrdhost_hostname(host), rrdhost_program_name(host), + prog_name); + + STRING *t = host->program_name; + host->program_name = string_strdupz(prog_name); + string_freez(t); + } + + if(strcmp(rrdhost_program_version(host), prog_version) != 0) { + nd_log(NDLS_DAEMON, NDLP_NOTICE, + "Host '%s' switched program version from '%s' to '%s'", + rrdhost_hostname(host), rrdhost_program_version(host), + prog_version); + + STRING *t = host->program_version; + host->program_version = string_strdupz(prog_version); + string_freez(t); + } + + if(host->rrd_update_every != update_every) + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Host '%s' has an update frequency of %d seconds, but the wanted one is %d seconds. " + "Restart netdata here to apply the new settings.", + rrdhost_hostname(host), host->rrd_update_every, update_every); + + if(host->rrd_memory_mode != mode) + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Host '%s' has memory mode '%s', but the wanted one is '%s'. " + "Restart netdata here to apply the new settings.", + rrdhost_hostname(host), + rrd_memory_mode_name(host->rrd_memory_mode), + rrd_memory_mode_name(mode)); + + else if(host->rrd_memory_mode != RRD_MEMORY_MODE_DBENGINE && host->rrd_history_entries < history) + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Host '%s' has history of %d entries, but the wanted one is %ld entries. " + "Restart netdata here to apply the new settings.", + rrdhost_hostname(host), + host->rrd_history_entries, + history); + + if(!host->rrdvars) + host->rrdvars = rrdvariables_create(); + + host->last_connected = now_realtime_sec(); + + if (rrdhost_flag_check(host, RRDHOST_FLAG_ARCHIVED)) { + rrdhost_flag_clear(host, RRDHOST_FLAG_ARCHIVED); + + rrd_functions_host_init(host); + + if(!host->rrdlabels) + host->rrdlabels = rrdlabels_create(); + + if (!host->rrdset_root_index) + rrdset_index_init(host); + + rrdhost_initialize_rrdpush_sender(host, + rrdpush_enabled, + rrdpush_destination, + rrdpush_api_key, + rrdpush_send_charts_matching); + + rrdcalc_rrdhost_index_init(host); + + if(rrdpush_enable_replication) + rrdhost_option_set(host, RRDHOST_OPTION_REPLICATION); + else + rrdhost_option_clear(host, RRDHOST_OPTION_REPLICATION); + + host->rrdpush_seconds_to_replicate = rrdpush_seconds_to_replicate; + host->rrdpush_replication_step = rrdpush_replication_step; + + ml_host_new(host); + + rrdhost_load_rrdcontext_data(host); + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "Host %s is not in archived mode anymore", + rrdhost_hostname(host)); + } + + spinlock_unlock(&host->rrdhost_update_lock); +} + +RRDHOST *rrdhost_find_or_create( + const char *hostname + , const char *registry_hostname + , const char *guid + , const char *os + , const char *timezone + , const char *abbrev_timezone + , int32_t utc_offset + , const char *prog_name + , const char *prog_version + , int update_every + , long history + , RRD_MEMORY_MODE mode + , unsigned int health_enabled + , unsigned int rrdpush_enabled + , char *rrdpush_destination + , char *rrdpush_api_key + , char *rrdpush_send_charts_matching + , bool rrdpush_enable_replication + , time_t rrdpush_seconds_to_replicate + , time_t rrdpush_replication_step + , struct rrdhost_system_info *system_info + , bool archived +) { + RRDHOST *host = rrdhost_find_by_guid(guid); + if (unlikely(host && host->rrd_memory_mode != mode && rrdhost_flag_check(host, RRDHOST_FLAG_ARCHIVED))) { + + if (likely(!archived && rrdhost_flag_check(host, RRDHOST_FLAG_PENDING_CONTEXT_LOAD))) + return host; + + /* If a legacy memory mode instantiates all dbengine state must be discarded to avoid inconsistencies */ + nd_log(NDLS_DAEMON, NDLP_INFO, + "Archived host '%s' has memory mode '%s', but the wanted one is '%s'. Discarding archived state.", + rrdhost_hostname(host), + rrd_memory_mode_name(host->rrd_memory_mode), + rrd_memory_mode_name(mode)); + + rrd_wrlock(); + rrdhost_free___while_having_rrd_wrlock(host, true); + host = NULL; + rrd_wrunlock(); + } + + if(!host) { + host = rrdhost_create( + hostname + , registry_hostname + , guid + , os + , timezone + , abbrev_timezone + , utc_offset + , prog_name + , prog_version + , update_every + , history + , mode + , health_enabled + , rrdpush_enabled + , rrdpush_destination + , rrdpush_api_key + , rrdpush_send_charts_matching + , rrdpush_enable_replication + , rrdpush_seconds_to_replicate + , rrdpush_replication_step + , system_info + , 0 + , archived + ); + } + else { + if (likely(!rrdhost_flag_check(host, RRDHOST_FLAG_PENDING_CONTEXT_LOAD))) + rrdhost_update(host + , hostname + , registry_hostname + , guid + , os + , timezone + , abbrev_timezone + , utc_offset + , prog_name + , prog_version + , update_every + , history + , mode + , health_enabled + , rrdpush_enabled + , rrdpush_destination + , rrdpush_api_key + , rrdpush_send_charts_matching + , rrdpush_enable_replication + , rrdpush_seconds_to_replicate + , rrdpush_replication_step + , system_info); + } + + return host; +} + +inline int rrdhost_should_be_removed(RRDHOST *host, RRDHOST *protected_host, time_t now_s) { + if(host != protected_host + && host != localhost + && rrdhost_receiver_replicating_charts(host) == 0 + && rrdhost_sender_replicating_charts(host) == 0 + && rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN) + && !rrdhost_flag_check(host, RRDHOST_FLAG_PENDING_CONTEXT_LOAD) + && !host->receiver + && host->child_disconnected_time + && host->child_disconnected_time + rrdhost_free_orphan_time_s < now_s) + return 1; + + return 0; +} + +// ---------------------------------------------------------------------------- +// RRDHOST global / startup initialization + +#ifdef ENABLE_DBENGINE +struct dbengine_initialization { + ND_THREAD *thread; + char path[FILENAME_MAX + 1]; + int disk_space_mb; + size_t retention_seconds; + size_t tier; + int ret; +}; + +typedef struct rrd_alert_prototype { + struct rrd_alert_match match; + struct rrd_alert_config config; + + struct { + uint32_t uses; + bool enabled; + bool is_on_disk; + SPINLOCK spinlock; + struct rrd_alert_prototype *prev, *next; + } _internal; +} RRD_ALERT_PROTOTYPE; + +void *dbengine_tier_init(void *ptr) { + struct dbengine_initialization *dbi = ptr; + dbi->ret = rrdeng_init(NULL, dbi->path, dbi->disk_space_mb, dbi->tier, dbi->retention_seconds); + return ptr; +} + +RRD_BACKFILL get_dbengine_backfill(RRD_BACKFILL backfill) +{ + const char *bf = config_get( + CONFIG_SECTION_DB, + "dbengine tier backfill", + backfill == RRD_BACKFILL_NEW ? "new" : + backfill == RRD_BACKFILL_FULL ? "full" : + "none"); + + if (strcmp(bf, "new") == 0) + backfill = RRD_BACKFILL_NEW; + else if (strcmp(bf, "full") == 0) + backfill = RRD_BACKFILL_FULL; + else if (strcmp(bf, "none") == 0) + backfill = RRD_BACKFILL_NONE; + else { + nd_log(NDLS_DAEMON, NDLP_WARNING, "DBENGINE: unknown backfill value '%s', assuming 'new'", bf); + config_set(CONFIG_SECTION_DB, "dbengine tier backfill", "new"); + backfill = RRD_BACKFILL_NEW; + } + return backfill; +} + +#endif + +void dbengine_init(char *hostname) { +#ifdef ENABLE_DBENGINE + + use_direct_io = config_get_boolean(CONFIG_SECTION_DB, "dbengine use direct io", use_direct_io); + + unsigned read_num = (unsigned)config_get_number(CONFIG_SECTION_DB, "dbengine pages per extent", DEFAULT_PAGES_PER_EXTENT); + if (read_num > 0 && read_num <= DEFAULT_PAGES_PER_EXTENT) + rrdeng_pages_per_extent = read_num; + else { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Invalid dbengine pages per extent %u given. Using %u.", + read_num, rrdeng_pages_per_extent); + + config_set_number(CONFIG_SECTION_DB, "dbengine pages per extent", rrdeng_pages_per_extent); + } + + storage_tiers = config_get_number(CONFIG_SECTION_DB, "storage tiers", storage_tiers); + if(storage_tiers < 1) { + nd_log(NDLS_DAEMON, NDLP_WARNING, "At least 1 storage tier is required. Assuming 1."); + + storage_tiers = 1; + config_set_number(CONFIG_SECTION_DB, "storage tiers", storage_tiers); + } + if(storage_tiers > RRD_STORAGE_TIERS) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Up to %d storage tier are supported. Assuming %d.", + RRD_STORAGE_TIERS, RRD_STORAGE_TIERS); + + storage_tiers = RRD_STORAGE_TIERS; + config_set_number(CONFIG_SECTION_DB, "storage tiers", storage_tiers); + } + + new_dbengine_defaults = + (!legacy_multihost_db_space && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 1 update every iterations") && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 2 update every iterations") && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 3 update every iterations") && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 4 update every iterations") && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 1 disk space MB") && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 2 disk space MB") && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 3 disk space MB") && + !config_exists(CONFIG_SECTION_DB, "dbengine tier 4 disk space MB")); + + default_backfill = get_dbengine_backfill(RRD_BACKFILL_NEW); + char dbengineconfig[200 + 1]; + + size_t grouping_iterations = default_rrd_update_every; + storage_tiers_grouping_iterations[0] = default_rrd_update_every; + + for (size_t tier = 1; tier < storage_tiers; tier++) { + grouping_iterations = storage_tiers_grouping_iterations[tier]; + snprintfz(dbengineconfig, sizeof(dbengineconfig) - 1, "dbengine tier %zu update every iterations", tier); + grouping_iterations = config_get_number(CONFIG_SECTION_DB, dbengineconfig, grouping_iterations); + if(grouping_iterations < 2) { + grouping_iterations = 2; + config_set_number(CONFIG_SECTION_DB, dbengineconfig, grouping_iterations); + nd_log(NDLS_DAEMON, NDLP_WARNING, + "DBENGINE on '%s': 'dbegnine tier %zu update every iterations' cannot be less than 2. Assuming 2.", + hostname, tier); + } + storage_tiers_grouping_iterations[tier] = grouping_iterations; + } + + default_multidb_disk_quota_mb = (int) config_get_number(CONFIG_SECTION_DB, "dbengine tier 0 disk space MB", RRDENG_DEFAULT_TIER_DISK_SPACE_MB); + if(default_multidb_disk_quota_mb && default_multidb_disk_quota_mb < RRDENG_MIN_DISK_SPACE_MB) { + netdata_log_error("Invalid disk space %d for tier 0 given. Defaulting to %d.", default_multidb_disk_quota_mb, RRDENG_MIN_DISK_SPACE_MB); + default_multidb_disk_quota_mb = RRDENG_MIN_DISK_SPACE_MB; + config_set_number(CONFIG_SECTION_DB, "dbengine tier 0 disk space MB", default_multidb_disk_quota_mb); + } + + bool parallel_initialization = (storage_tiers <= (size_t)get_netdata_cpus()) ? true : false; + + struct dbengine_initialization tiers_init[RRD_STORAGE_TIERS] = {}; + + size_t created_tiers = 0; + char dbenginepath[FILENAME_MAX + 1]; + + for (size_t tier = 0; tier < storage_tiers; tier++) { + + if (tier == 0) + snprintfz(dbenginepath, FILENAME_MAX, "%s/dbengine", netdata_configured_cache_dir); + else + snprintfz(dbenginepath, FILENAME_MAX, "%s/dbengine-tier%zu", netdata_configured_cache_dir, tier); + + int ret = mkdir(dbenginepath, 0775); + if (ret != 0 && errno != EEXIST) { + nd_log(NDLS_DAEMON, NDLP_CRIT, "DBENGINE on '%s': cannot create directory '%s'", hostname, dbenginepath); + continue; + } + + int disk_space_mb = tier ? RRDENG_DEFAULT_TIER_DISK_SPACE_MB : default_multidb_disk_quota_mb; + snprintfz(dbengineconfig, sizeof(dbengineconfig) - 1, "dbengine tier %zu disk space MB", tier); + disk_space_mb = config_get_number(CONFIG_SECTION_DB, dbengineconfig, disk_space_mb); + + snprintfz(dbengineconfig, sizeof(dbengineconfig) - 1, "dbengine tier %zu retention days", tier); + storage_tiers_retention_days[tier] = config_get_number( + CONFIG_SECTION_DB, dbengineconfig, new_dbengine_defaults ? storage_tiers_retention_days[tier] : 0); + + tiers_init[tier].disk_space_mb = (int) disk_space_mb; + tiers_init[tier].tier = tier; + tiers_init[tier].retention_seconds = (size_t) (86400.0 * storage_tiers_retention_days[tier]); + strncpyz(tiers_init[tier].path, dbenginepath, FILENAME_MAX); + tiers_init[tier].ret = 0; + + if(parallel_initialization) { + char tag[NETDATA_THREAD_TAG_MAX + 1]; + snprintfz(tag, NETDATA_THREAD_TAG_MAX, "DBENGINIT[%zu]", tier); + tiers_init[tier].thread = nd_thread_create(tag, NETDATA_THREAD_OPTION_JOINABLE, dbengine_tier_init, &tiers_init[tier]); + } + else + dbengine_tier_init(&tiers_init[tier]); + } + + for(size_t tier = 0; tier < storage_tiers ;tier++) { + if(parallel_initialization) + nd_thread_join(tiers_init[tier].thread); + + if(tiers_init[tier].ret != 0) { + nd_log(NDLS_DAEMON, NDLP_ERR, + "DBENGINE on '%s': Failed to initialize multi-host database tier %zu on path '%s'", + hostname, tiers_init[tier].tier, tiers_init[tier].path); + } + else if(created_tiers == tier) + created_tiers++; + } + + if(created_tiers && created_tiers < storage_tiers) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "DBENGINE on '%s': Managed to create %zu tiers instead of %zu. Continuing with %zu available.", + hostname, created_tiers, storage_tiers, created_tiers); + + storage_tiers = created_tiers; + } + else if(!created_tiers) + fatal("DBENGINE on '%s', failed to initialize databases at '%s'.", hostname, netdata_configured_cache_dir); + + for(size_t tier = 0; tier < storage_tiers ;tier++) + rrdeng_readiness_wait(multidb_ctx[tier]); + + calculate_tier_disk_space_percentage(); + + dbengine_enabled = true; +#else + storage_tiers = config_get_number(CONFIG_SECTION_DB, "storage tiers", 1); + if(storage_tiers != 1) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "DBENGINE is not available on '%s', so only 1 database tier can be supported.", + hostname); + + storage_tiers = 1; + config_set_number(CONFIG_SECTION_DB, "storage tiers", storage_tiers); + } + dbengine_enabled = false; +#endif +} + +int rrd_init(char *hostname, struct rrdhost_system_info *system_info, bool unittest) { + rrdhost_init(); + + if (unlikely(sql_init_meta_database(DB_CHECK_NONE, system_info ? 0 : 1))) { + if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { + set_late_global_environment(system_info); + fatal("Failed to initialize SQLite"); + } + + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "Skipping SQLITE metadata initialization since memory mode is not dbengine"); + } + + if (unlikely(sql_init_context_database(system_info ? 0 : 1))) { + error_report("Failed to initialize context metadata database"); + } + + if (unlikely(unittest)) { + dbengine_enabled = true; + } + else { + rrdpush_init(); + + if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE || rrdpush_receiver_needs_dbengine()) { + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "DBENGINE: Initializing ..."); + + dbengine_init(hostname); + } + else + storage_tiers = 1; + + if (!dbengine_enabled) { + if (storage_tiers > 1) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "dbengine is not enabled, but %zu tiers have been requested. Resetting tiers to 1", + storage_tiers); + + storage_tiers = 1; + } + + if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "dbengine is not enabled, but it has been given as the default db mode. " + "Resetting db mode to alloc"); + + default_rrd_memory_mode = RRD_MEMORY_MODE_ALLOC; + } + } + } + + if(!unittest) + metadata_sync_init(); + + localhost = rrdhost_create( + hostname + , registry_get_this_machine_hostname() + , registry_get_this_machine_guid() + , os_type + , netdata_configured_timezone + , netdata_configured_abbrev_timezone + , netdata_configured_utc_offset + , program_name + , NETDATA_VERSION + , default_rrd_update_every + , default_rrd_history_entries + , default_rrd_memory_mode + , health_plugin_enabled() + , default_rrdpush_enabled + , default_rrdpush_destination + , default_rrdpush_api_key + , default_rrdpush_send_charts_matching + , default_rrdpush_enable_replication + , default_rrdpush_seconds_to_replicate + , default_rrdpush_replication_step + , system_info + , 1 + , 0 + ); + + if (unlikely(!localhost)) + return 1; + + dyncfg_host_init(localhost); + + if(!unittest) { + health_plugin_init(); + } + + // we register this only on localhost + // for the other nodes, the origin server should register it + rrd_function_add_inline(localhost, NULL, "streaming", 10, + RRDFUNCTIONS_PRIORITY_DEFAULT + 1, RRDFUNCTIONS_STREAMING_HELP, "top", + HTTP_ACCESS_SIGNED_ID | HTTP_ACCESS_SAME_SPACE | HTTP_ACCESS_SENSITIVE_DATA, + rrdhost_function_streaming); + + rrd_function_add_inline(localhost, NULL, "netdata-api-calls", 10, + RRDFUNCTIONS_PRIORITY_DEFAULT + 2, RRDFUNCTIONS_PROGRESS_HELP, "top", + HTTP_ACCESS_SIGNED_ID | HTTP_ACCESS_SAME_SPACE | HTTP_ACCESS_SENSITIVE_DATA, + rrdhost_function_progress); + + if (likely(system_info)) { + detect_machine_guid_change(&localhost->host_uuid); + sql_aclk_sync_init(); + web_client_api_v1_management_init(); + } + + return 0; +} + +// ---------------------------------------------------------------------------- +// RRDHOST - free + +void rrdhost_system_info_free(struct rrdhost_system_info *system_info) { + if(likely(system_info)) { + __atomic_sub_fetch(&netdata_buffers_statistics.rrdhost_allocations_size, sizeof(struct rrdhost_system_info), __ATOMIC_RELAXED); + + freez(system_info->cloud_provider_type); + freez(system_info->cloud_instance_type); + freez(system_info->cloud_instance_region); + freez(system_info->host_os_name); + freez(system_info->host_os_id); + freez(system_info->host_os_id_like); + freez(system_info->host_os_version); + freez(system_info->host_os_version_id); + freez(system_info->host_os_detection); + freez(system_info->host_cores); + freez(system_info->host_cpu_freq); + freez(system_info->host_ram_total); + freez(system_info->host_disk_space); + freez(system_info->container_os_name); + freez(system_info->container_os_id); + freez(system_info->container_os_id_like); + freez(system_info->container_os_version); + freez(system_info->container_os_version_id); + freez(system_info->container_os_detection); + freez(system_info->kernel_name); + freez(system_info->kernel_version); + freez(system_info->architecture); + freez(system_info->virtualization); + freez(system_info->virt_detection); + freez(system_info->container); + freez(system_info->container_detection); + freez(system_info->is_k8s_node); + freez(system_info->install_type); + freez(system_info->prebuilt_arch); + freez(system_info->prebuilt_dist); + freez(system_info); + } +} + +static void rrdhost_streaming_sender_structures_init(RRDHOST *host) +{ + if (host->sender) + return; + + host->sender = callocz(1, sizeof(*host->sender)); + __atomic_add_fetch(&netdata_buffers_statistics.rrdhost_senders, sizeof(*host->sender), __ATOMIC_RELAXED); + + host->sender->host = host; + host->sender->buffer = cbuffer_new(CBUFFER_INITIAL_SIZE, 1024 * 1024, &netdata_buffers_statistics.cbuffers_streaming); + host->sender->capabilities = stream_our_capabilities(host, true); + + host->sender->rrdpush_sender_pipe[PIPE_READ] = -1; + host->sender->rrdpush_sender_pipe[PIPE_WRITE] = -1; + host->sender->rrdpush_sender_socket = -1; + host->sender->disabled_capabilities = STREAM_CAP_NONE; + + if(!default_rrdpush_compression_enabled) + host->sender->disabled_capabilities |= STREAM_CAP_COMPRESSIONS_AVAILABLE; + + spinlock_init(&host->sender->spinlock); + replication_init_sender(host->sender); +} + +static void rrdhost_streaming_sender_structures_free(RRDHOST *host) +{ + rrdhost_option_clear(host, RRDHOST_OPTION_SENDER_ENABLED); + + if (unlikely(!host->sender)) + return; + + rrdpush_sender_thread_stop(host, STREAM_HANDSHAKE_DISCONNECT_HOST_CLEANUP, true); // stop a possibly running thread + cbuffer_free(host->sender->buffer); + + rrdpush_compressor_destroy(&host->sender->compressor); + + replication_cleanup_sender(host->sender); + + __atomic_sub_fetch(&netdata_buffers_statistics.rrdhost_senders, sizeof(*host->sender), __ATOMIC_RELAXED); + + freez(host->sender); + host->sender = NULL; + rrdhost_flag_clear(host, RRDHOST_FLAG_RRDPUSH_SENDER_INITIALIZED); +} + +void rrdhost_free___while_having_rrd_wrlock(RRDHOST *host, bool force) { + if(!host) return; + + if (netdata_exit || force) { + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "RRD: 'host:%s' freeing memory...", + rrdhost_hostname(host)); + + // ------------------------------------------------------------------------ + // first remove it from the indexes, so that it will not be discoverable + + rrdhost_index_del_hostname(host); + rrdhost_index_del_by_guid(host); + + if (host->prev) + DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(localhost, host, prev, next); + } + + // ------------------------------------------------------------------------ + // clean up streaming chart slots + + rrdhost_pluginsd_send_chart_slots_free(host); + rrdhost_pluginsd_receive_chart_slots_free(host); + + // ------------------------------------------------------------------------ + // clean up streaming + + rrdhost_streaming_sender_structures_free(host); + + if (netdata_exit || force) + stop_streaming_receiver(host, STREAM_HANDSHAKE_DISCONNECT_HOST_CLEANUP); + + + // ------------------------------------------------------------------------ + // clean up alarms + + rrdcalc_delete_all(host); + + // delete all the RRDSETs of the host + rrdset_index_destroy(host); + rrdcalc_rrdhost_index_destroy(host); + + // cleanup ML resources + ml_host_delete(host); + + freez(host->exporting_flags); + + health_alarm_log_free(host); + + if (!netdata_exit && !force) { + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "RRD: 'host:%s' is now in archive mode...", + rrdhost_hostname(host)); + + rrdhost_flag_set(host, RRDHOST_FLAG_ARCHIVED | RRDHOST_FLAG_ORPHAN); + return; + } + + // ------------------------------------------------------------------------ + // free it + + pthread_mutex_destroy(&host->aclk_state_lock); + freez(host->aclk_state.claimed_id); + freez(host->aclk_state.prev_claimed_id); + rrdlabels_destroy(host->rrdlabels); + string_freez(host->os); + string_freez(host->timezone); + string_freez(host->abbrev_timezone); + string_freez(host->program_name); + string_freez(host->program_version); + rrdhost_system_info_free(host->system_info); + freez(host->cache_dir); + freez(host->rrdpush_send_api_key); + freez(host->rrdpush_send_destination); + rrdpush_destinations_free(host); + string_freez(host->health.health_default_exec); + string_freez(host->health.health_default_recipient); + string_freez(host->registry_hostname); + simple_pattern_free(host->rrdpush_send_charts_matching); + freez(host->node_id); + + rrd_functions_host_destroy(host); + rrdvariables_destroy(host->rrdvars); + if (host == localhost) + health_plugin_destroy(); + + rrdhost_destroy_rrdcontexts(host); + + string_freez(host->hostname); + __atomic_sub_fetch(&netdata_buffers_statistics.rrdhost_allocations_size, sizeof(RRDHOST), __ATOMIC_RELAXED); + + freez(host); +} + +void rrdhost_free_all(void) { + rrd_wrlock(); + + /* Make sure child-hosts are released before the localhost. */ + while(localhost && localhost->next) + rrdhost_free___while_having_rrd_wrlock(localhost->next, true); + + if(localhost) + rrdhost_free___while_having_rrd_wrlock(localhost, true); + + rrd_wrunlock(); +} + +void rrd_finalize_collection_for_all_hosts(void) { + RRDHOST *host; + dfe_start_reentrant(rrdhost_root_index, host) { + rrdhost_finalize_collection(host); + } + dfe_done(host); +} + +struct rrdhost_system_info *rrdhost_labels_to_system_info(RRDLABELS *labels) { + struct rrdhost_system_info *info = callocz(1, sizeof(struct rrdhost_system_info)); + info->hops = 1; + + rrdlabels_get_value_strdup_or_null(labels, &info->cloud_provider_type, "_cloud_provider_type"); + rrdlabels_get_value_strdup_or_null(labels, &info->cloud_instance_type, "_cloud_instance_type"); + rrdlabels_get_value_strdup_or_null(labels, &info->cloud_instance_region, "_cloud_instance_region"); + rrdlabels_get_value_strdup_or_null(labels, &info->host_os_name, "_os_name"); + rrdlabels_get_value_strdup_or_null(labels, &info->host_os_version, "_os_version"); + rrdlabels_get_value_strdup_or_null(labels, &info->kernel_version, "_kernel_version"); + rrdlabels_get_value_strdup_or_null(labels, &info->host_cores, "_system_cores"); + rrdlabels_get_value_strdup_or_null(labels, &info->host_cpu_freq, "_system_cpu_freq"); + rrdlabels_get_value_strdup_or_null(labels, &info->host_ram_total, "_system_ram_total"); + rrdlabels_get_value_strdup_or_null(labels, &info->host_disk_space, "_system_disk_space"); + rrdlabels_get_value_strdup_or_null(labels, &info->architecture, "_architecture"); + rrdlabels_get_value_strdup_or_null(labels, &info->virtualization, "_virtualization"); + rrdlabels_get_value_strdup_or_null(labels, &info->container, "_container"); + rrdlabels_get_value_strdup_or_null(labels, &info->container_detection, "_container_detection"); + rrdlabels_get_value_strdup_or_null(labels, &info->virt_detection, "_virt_detection"); + rrdlabels_get_value_strdup_or_null(labels, &info->is_k8s_node, "_is_k8s_node"); + rrdlabels_get_value_strdup_or_null(labels, &info->install_type, "_install_type"); + rrdlabels_get_value_strdup_or_null(labels, &info->prebuilt_arch, "_prebuilt_arch"); + rrdlabels_get_value_strdup_or_null(labels, &info->prebuilt_dist, "_prebuilt_dist"); + + return info; +} + +static void rrdhost_load_auto_labels(void) { + RRDLABELS *labels = localhost->rrdlabels; + + if (localhost->system_info->cloud_provider_type) + rrdlabels_add(labels, "_cloud_provider_type", localhost->system_info->cloud_provider_type, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->cloud_instance_type) + rrdlabels_add(labels, "_cloud_instance_type", localhost->system_info->cloud_instance_type, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->cloud_instance_region) + rrdlabels_add(labels, "_cloud_instance_region", localhost->system_info->cloud_instance_region, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->host_os_name) + rrdlabels_add(labels, "_os_name", localhost->system_info->host_os_name, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->host_os_version) + rrdlabels_add(labels, "_os_version", localhost->system_info->host_os_version, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->kernel_version) + rrdlabels_add(labels, "_kernel_version", localhost->system_info->kernel_version, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->host_cores) + rrdlabels_add(labels, "_system_cores", localhost->system_info->host_cores, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->host_cpu_freq) + rrdlabels_add(labels, "_system_cpu_freq", localhost->system_info->host_cpu_freq, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->host_ram_total) + rrdlabels_add(labels, "_system_ram_total", localhost->system_info->host_ram_total, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->host_disk_space) + rrdlabels_add(labels, "_system_disk_space", localhost->system_info->host_disk_space, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->architecture) + rrdlabels_add(labels, "_architecture", localhost->system_info->architecture, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->virtualization) + rrdlabels_add(labels, "_virtualization", localhost->system_info->virtualization, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->container) + rrdlabels_add(labels, "_container", localhost->system_info->container, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->container_detection) + rrdlabels_add(labels, "_container_detection", localhost->system_info->container_detection, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->virt_detection) + rrdlabels_add(labels, "_virt_detection", localhost->system_info->virt_detection, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->is_k8s_node) + rrdlabels_add(labels, "_is_k8s_node", localhost->system_info->is_k8s_node, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->install_type) + rrdlabels_add(labels, "_install_type", localhost->system_info->install_type, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->prebuilt_arch) + rrdlabels_add(labels, "_prebuilt_arch", localhost->system_info->prebuilt_arch, RRDLABEL_SRC_AUTO); + + if (localhost->system_info->prebuilt_dist) + rrdlabels_add(labels, "_prebuilt_dist", localhost->system_info->prebuilt_dist, RRDLABEL_SRC_AUTO); + + add_aclk_host_labels(); + + // The source should be CONF, but when it is set, these labels are exported by default ('send configured labels' in exporting.conf). + // Their export seems to break exporting to Graphite, see https://github.com/netdata/netdata/issues/14084. + + int is_ephemeral = appconfig_get_boolean(&netdata_config, CONFIG_SECTION_GLOBAL, "is ephemeral node", CONFIG_BOOLEAN_NO); + rrdlabels_add(labels, "_is_ephemeral", is_ephemeral ? "true" : "false", RRDLABEL_SRC_AUTO); + + int has_unstable_connection = appconfig_get_boolean(&netdata_config, CONFIG_SECTION_GLOBAL, "has unstable connection", CONFIG_BOOLEAN_NO); + rrdlabels_add(labels, "_has_unstable_connection", has_unstable_connection ? "true" : "false", RRDLABEL_SRC_AUTO); + + rrdlabels_add(labels, "_is_parent", (localhost->connected_children_count > 0) ? "true" : "false", RRDLABEL_SRC_AUTO); + + rrdlabels_add(labels, "_hostname", string2str(localhost->hostname), RRDLABEL_SRC_AUTO); + rrdlabels_add(labels, "_os", string2str(localhost->os), RRDLABEL_SRC_AUTO); + + if (localhost->rrdpush_send_destination) + rrdlabels_add(labels, "_streams_to", localhost->rrdpush_send_destination, RRDLABEL_SRC_AUTO); +} + +void rrdhost_set_is_parent_label(void) { + int count = __atomic_load_n(&localhost->connected_children_count, __ATOMIC_RELAXED); + + if (count == 0 || count == 1) { + RRDLABELS *labels = localhost->rrdlabels; + rrdlabels_add(labels, "_is_parent", (count) ? "true" : "false", RRDLABEL_SRC_AUTO); + + //queue a node info +#ifdef ENABLE_ACLK + if (netdata_cloud_enabled) { + aclk_queue_node_info(localhost, false); + } +#endif + } +} + +static void rrdhost_load_config_labels(void) { + int status = config_load(NULL, 1, CONFIG_SECTION_HOST_LABEL); + if(!status) { + char *filename = CONFIG_DIR "/" CONFIG_FILENAME; + nd_log(NDLS_DAEMON, NDLP_WARNING, + "RRDLABEL: Cannot reload the configuration file '%s', using labels in memory", + filename); + } + + struct section *co = appconfig_get_section(&netdata_config, CONFIG_SECTION_HOST_LABEL); + if(co) { + config_section_wrlock(co); + struct config_option *cv; + for(cv = co->values; cv ; cv = cv->next) { + rrdlabels_add(localhost->rrdlabels, cv->name, cv->value, RRDLABEL_SRC_CONFIG); + cv->flags |= CONFIG_VALUE_USED; + } + config_section_unlock(co); + } +} + +static void rrdhost_load_kubernetes_labels(void) { + char label_script[sizeof(char) * (strlen(netdata_configured_primary_plugins_dir) + strlen("get-kubernetes-labels.sh") + 2)]; + sprintf(label_script, "%s/%s", netdata_configured_primary_plugins_dir, "get-kubernetes-labels.sh"); + + if (unlikely(access(label_script, R_OK) != 0)) { + nd_log(NDLS_DAEMON, NDLP_ERR, + "Kubernetes pod label fetching script %s not found.", + label_script); + + return; + } + + pid_t pid; + FILE *fp_child_input; + FILE *fp_child_output = netdata_popen(label_script, &pid, &fp_child_input); + if(!fp_child_output) return; + + char buffer[1000 + 1]; + while (fgets(buffer, 1000, fp_child_output) != NULL) + rrdlabels_add_pair(localhost->rrdlabels, buffer, RRDLABEL_SRC_AUTO|RRDLABEL_SRC_K8S); + + // Non-zero exit code means that all the script output is error messages. We've shown already any message that didn't include a ':' + // Here we'll inform with an ERROR that the script failed, show whatever (if anything) was added to the list of labels, free the memory and set the return to null + int rc = netdata_pclose(fp_child_input, fp_child_output, pid); + if(rc) + nd_log(NDLS_DAEMON, NDLP_ERR, + "%s exited abnormally. Failed to get kubernetes labels.", + label_script); +} + +void reload_host_labels(void) { + if(!localhost->rrdlabels) + localhost->rrdlabels = rrdlabels_create(); + + rrdlabels_unmark_all(localhost->rrdlabels); + + // priority is important here + rrdhost_load_config_labels(); + rrdhost_load_kubernetes_labels(); + rrdhost_load_auto_labels(); + + rrdhost_flag_set(localhost,RRDHOST_FLAG_METADATA_LABELS | RRDHOST_FLAG_METADATA_UPDATE); + + rrdpush_send_host_labels(localhost); +} + +void rrdhost_finalize_collection(RRDHOST *host) { + ND_LOG_STACK lgs[] = { + ND_LOG_FIELD_TXT(NDF_NIDL_NODE, rrdhost_hostname(host)), + ND_LOG_FIELD_END(), + }; + ND_LOG_STACK_PUSH(lgs); + + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "RRD: 'host:%s' stopping data collection...", + rrdhost_hostname(host)); + + RRDSET *st; + rrdset_foreach_read(st, host) + rrdset_finalize_collection(st, true); + rrdset_foreach_done(st); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - set system info from environment variables +// system_info fields must be heap allocated or NULL +int rrdhost_set_system_info_variable(struct rrdhost_system_info *system_info, char *name, char *value) { + int res = 0; + + if (!strcmp(name, "NETDATA_PROTOCOL_VERSION")) + return res; + else if(!strcmp(name, "NETDATA_INSTANCE_CLOUD_TYPE")){ + freez(system_info->cloud_provider_type); + system_info->cloud_provider_type = strdupz(value); + } + else if(!strcmp(name, "NETDATA_INSTANCE_CLOUD_INSTANCE_TYPE")){ + freez(system_info->cloud_instance_type); + system_info->cloud_instance_type = strdupz(value); + } + else if(!strcmp(name, "NETDATA_INSTANCE_CLOUD_INSTANCE_REGION")){ + freez(system_info->cloud_instance_region); + system_info->cloud_instance_region = strdupz(value); + } + else if(!strcmp(name, "NETDATA_CONTAINER_OS_NAME")){ + freez(system_info->container_os_name); + system_info->container_os_name = strdupz(value); + } + else if(!strcmp(name, "NETDATA_CONTAINER_OS_ID")){ + freez(system_info->container_os_id); + system_info->container_os_id = strdupz(value); + } + else if(!strcmp(name, "NETDATA_CONTAINER_OS_ID_LIKE")){ + freez(system_info->container_os_id_like); + system_info->container_os_id_like = strdupz(value); + } + else if(!strcmp(name, "NETDATA_CONTAINER_OS_VERSION")){ + freez(system_info->container_os_version); + system_info->container_os_version = strdupz(value); + } + else if(!strcmp(name, "NETDATA_CONTAINER_OS_VERSION_ID")){ + freez(system_info->container_os_version_id); + system_info->container_os_version_id = strdupz(value); + } + else if(!strcmp(name, "NETDATA_CONTAINER_OS_DETECTION")){ + freez(system_info->container_os_detection); + system_info->container_os_detection = strdupz(value); + } + else if(!strcmp(name, "NETDATA_HOST_OS_NAME")){ + freez(system_info->host_os_name); + system_info->host_os_name = strdupz(value); + json_fix_string(system_info->host_os_name); + } + else if(!strcmp(name, "NETDATA_HOST_OS_ID")){ + freez(system_info->host_os_id); + system_info->host_os_id = strdupz(value); + } + else if(!strcmp(name, "NETDATA_HOST_OS_ID_LIKE")){ + freez(system_info->host_os_id_like); + system_info->host_os_id_like = strdupz(value); + } + else if(!strcmp(name, "NETDATA_HOST_OS_VERSION")){ + freez(system_info->host_os_version); + system_info->host_os_version = strdupz(value); + } + else if(!strcmp(name, "NETDATA_HOST_OS_VERSION_ID")){ + freez(system_info->host_os_version_id); + system_info->host_os_version_id = strdupz(value); + } + else if(!strcmp(name, "NETDATA_HOST_OS_DETECTION")){ + freez(system_info->host_os_detection); + system_info->host_os_detection = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_KERNEL_NAME")){ + freez(system_info->kernel_name); + system_info->kernel_name = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_CPU_LOGICAL_CPU_COUNT")){ + freez(system_info->host_cores); + system_info->host_cores = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_CPU_FREQ")){ + freez(system_info->host_cpu_freq); + system_info->host_cpu_freq = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_TOTAL_RAM")){ + freez(system_info->host_ram_total); + system_info->host_ram_total = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_TOTAL_DISK_SIZE")){ + freez(system_info->host_disk_space); + system_info->host_disk_space = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_KERNEL_VERSION")){ + freez(system_info->kernel_version); + system_info->kernel_version = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_ARCHITECTURE")){ + freez(system_info->architecture); + system_info->architecture = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_VIRTUALIZATION")){ + freez(system_info->virtualization); + system_info->virtualization = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_VIRT_DETECTION")){ + freez(system_info->virt_detection); + system_info->virt_detection = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_CONTAINER")){ + freez(system_info->container); + system_info->container = strdupz(value); + } + else if(!strcmp(name, "NETDATA_SYSTEM_CONTAINER_DETECTION")){ + freez(system_info->container_detection); + system_info->container_detection = strdupz(value); + } + else if(!strcmp(name, "NETDATA_HOST_IS_K8S_NODE")){ + freez(system_info->is_k8s_node); + system_info->is_k8s_node = strdupz(value); + } + else if (!strcmp(name, "NETDATA_SYSTEM_CPU_VENDOR")) + return res; + else if (!strcmp(name, "NETDATA_SYSTEM_CPU_MODEL")) + return res; + else if (!strcmp(name, "NETDATA_SYSTEM_CPU_DETECTION")) + return res; + else if (!strcmp(name, "NETDATA_SYSTEM_RAM_DETECTION")) + return res; + else if (!strcmp(name, "NETDATA_SYSTEM_DISK_DETECTION")) + return res; + else if (!strcmp(name, "NETDATA_CONTAINER_IS_OFFICIAL_IMAGE")) + return res; + else { + res = 1; + } + + return res; +} + +static NETDATA_DOUBLE rrdhost_sender_replication_completion_unsafe(RRDHOST *host, time_t now, size_t *instances) { + size_t charts = rrdhost_sender_replicating_charts(host); + NETDATA_DOUBLE completion; + if(!charts || !host->sender || !host->sender->replication.oldest_request_after_t) + completion = 100.0; + else if(!host->sender->replication.latest_completed_before_t || host->sender->replication.latest_completed_before_t < host->sender->replication.oldest_request_after_t) + completion = 0.0; + else { + time_t total = now - host->sender->replication.oldest_request_after_t; + time_t current = host->sender->replication.latest_completed_before_t - host->sender->replication.oldest_request_after_t; + completion = (NETDATA_DOUBLE) current * 100.0 / (NETDATA_DOUBLE) total; + } + + *instances = charts; + + return completion; +} + +bool rrdhost_matches_window(RRDHOST *host, time_t after, time_t before, time_t now) { + time_t first_time_s, last_time_s; + rrdhost_retention(host, now, rrdhost_is_online(host), &first_time_s, &last_time_s); + return query_matches_retention(after, before, first_time_s, last_time_s, 0); +} + +bool rrdhost_state_cloud_emulation(RRDHOST *host) { + return rrdhost_is_online(host); +} + +void rrdhost_status(RRDHOST *host, time_t now, RRDHOST_STATUS *s) { + memset(s, 0, sizeof(*s)); + + s->host = host; + s->now = now; + + RRDHOST_FLAGS flags = __atomic_load_n(&host->flags, __ATOMIC_RELAXED); + + // --- dyncfg --- + + s->dyncfg.status = dyncfg_available_for_rrdhost(host) ? RRDHOST_DYNCFG_STATUS_AVAILABLE : RRDHOST_DYNCFG_STATUS_UNAVAILABLE; + + // --- db --- + + bool online = rrdhost_is_online(host); + + rrdhost_retention(host, now, online, &s->db.first_time_s, &s->db.last_time_s); + s->db.metrics = host->rrdctx.metrics; + s->db.instances = host->rrdctx.instances; + s->db.contexts = dictionary_entries(host->rrdctx.contexts); + if(!s->db.first_time_s || !s->db.last_time_s || !s->db.metrics || !s->db.instances || !s->db.contexts || + (flags & (RRDHOST_FLAG_PENDING_CONTEXT_LOAD))) + s->db.status = RRDHOST_DB_STATUS_INITIALIZING; + else + s->db.status = RRDHOST_DB_STATUS_QUERYABLE; + + s->db.mode = host->rrd_memory_mode; + + // --- ingest --- + + s->ingest.since = MAX(host->child_connect_time, host->child_disconnected_time); + s->ingest.reason = (online) ? STREAM_HANDSHAKE_NEVER : host->rrdpush_last_receiver_exit_reason; + + netdata_mutex_lock(&host->receiver_lock); + s->ingest.hops = (host->system_info ? host->system_info->hops : (host == localhost) ? 0 : 1); + bool has_receiver = false; + if (host->receiver) { + has_receiver = true; + s->ingest.replication.instances = rrdhost_receiver_replicating_charts(host); + s->ingest.replication.completion = host->rrdpush_receiver_replication_percent; + s->ingest.replication.in_progress = s->ingest.replication.instances > 0; + + s->ingest.capabilities = host->receiver->capabilities; + s->ingest.peers = socket_peers(host->receiver->fd); +#ifdef ENABLE_HTTPS + s->ingest.ssl = SSL_connection(&host->receiver->ssl); +#endif + } + netdata_mutex_unlock(&host->receiver_lock); + + if (online) { + if(s->db.status == RRDHOST_DB_STATUS_INITIALIZING) + s->ingest.status = RRDHOST_INGEST_STATUS_INITIALIZING; + + else if (host == localhost || rrdhost_option_check(host, RRDHOST_OPTION_VIRTUAL_HOST)) { + s->ingest.status = RRDHOST_INGEST_STATUS_ONLINE; + s->ingest.since = netdata_start_time; + } + + else if (s->ingest.replication.in_progress) + s->ingest.status = RRDHOST_INGEST_STATUS_REPLICATING; + + else + s->ingest.status = RRDHOST_INGEST_STATUS_ONLINE; + } + else { + if (!s->ingest.since) { + s->ingest.status = RRDHOST_INGEST_STATUS_ARCHIVED; + s->ingest.since = s->db.last_time_s; + } + + else + s->ingest.status = RRDHOST_INGEST_STATUS_OFFLINE; + } + + if(host == localhost) + s->ingest.type = RRDHOST_INGEST_TYPE_LOCALHOST; + else if(has_receiver || rrdhost_flag_set(host, RRDHOST_FLAG_RRDPUSH_RECEIVER_DISCONNECTED)) + s->ingest.type = RRDHOST_INGEST_TYPE_CHILD; + else if(rrdhost_option_check(host, RRDHOST_OPTION_VIRTUAL_HOST)) + s->ingest.type = RRDHOST_INGEST_TYPE_VIRTUAL; + else + s->ingest.type = RRDHOST_INGEST_TYPE_ARCHIVED; + + s->ingest.id = host->rrdpush_receiver_connection_counter; + + if(!s->ingest.since) + s->ingest.since = netdata_start_time; + + if(s->ingest.status == RRDHOST_INGEST_STATUS_ONLINE) + s->db.liveness = RRDHOST_DB_LIVENESS_LIVE; + else + s->db.liveness = RRDHOST_DB_LIVENESS_STALE; + + // --- stream --- + + if (!host->sender) { + s->stream.status = RRDHOST_STREAM_STATUS_DISABLED; + s->stream.hops = s->ingest.hops + 1; + } + else { + sender_lock(host->sender); + + s->stream.since = host->sender->last_state_since_t; + s->stream.peers = socket_peers(host->sender->rrdpush_sender_socket); +#ifdef ENABLE_HTTPS + s->stream.ssl = SSL_connection(&host->sender->ssl); +#endif + + memcpy(s->stream.sent_bytes_on_this_connection_per_type, + host->sender->sent_bytes_on_this_connection_per_type, + MIN(sizeof(s->stream.sent_bytes_on_this_connection_per_type), + sizeof(host->sender->sent_bytes_on_this_connection_per_type))); + + if (rrdhost_flag_check(host, RRDHOST_FLAG_RRDPUSH_SENDER_CONNECTED)) { + s->stream.hops = host->sender->hops; + s->stream.reason = STREAM_HANDSHAKE_NEVER; + s->stream.capabilities = host->sender->capabilities; + + s->stream.replication.completion = rrdhost_sender_replication_completion_unsafe(host, now, &s->stream.replication.instances); + s->stream.replication.in_progress = s->stream.replication.instances > 0; + + if(s->stream.replication.in_progress) + s->stream.status = RRDHOST_STREAM_STATUS_REPLICATING; + else + s->stream.status = RRDHOST_STREAM_STATUS_ONLINE; + + s->stream.compression = host->sender->compressor.initialized; + } + else { + s->stream.status = RRDHOST_STREAM_STATUS_OFFLINE; + s->stream.hops = s->ingest.hops + 1; + s->stream.reason = host->sender->exit.reason; + } + + sender_unlock(host->sender); + } + + s->stream.id = host->rrdpush_sender_connection_counter; + + if(!s->stream.since) + s->stream.since = netdata_start_time; + + // --- ml --- + + if(ml_host_get_host_status(host, &s->ml.metrics)) { + s->ml.type = RRDHOST_ML_TYPE_SELF; + + if(s->ingest.status == RRDHOST_INGEST_STATUS_OFFLINE || s->ingest.status == RRDHOST_INGEST_STATUS_ARCHIVED) + s->ml.status = RRDHOST_ML_STATUS_OFFLINE; + else + s->ml.status = RRDHOST_ML_STATUS_RUNNING; + } + else if(stream_has_capability(&s->ingest, STREAM_CAP_DATA_WITH_ML)) { + s->ml.type = RRDHOST_ML_TYPE_RECEIVED; + s->ml.status = RRDHOST_ML_STATUS_RUNNING; + } + else { + // does not receive ML, does not run ML + s->ml.type = RRDHOST_ML_TYPE_DISABLED; + s->ml.status = RRDHOST_ML_STATUS_DISABLED; + } + + // --- health --- + + if(host->health.health_enabled) { + if(flags & RRDHOST_FLAG_PENDING_HEALTH_INITIALIZATION) + s->health.status = RRDHOST_HEALTH_STATUS_INITIALIZING; + else { + s->health.status = RRDHOST_HEALTH_STATUS_RUNNING; + + RRDCALC *rc; + foreach_rrdcalc_in_rrdhost_read(host, rc) { + if (unlikely(!rc->rrdset || !rc->rrdset->last_collected_time.tv_sec)) + continue; + + switch (rc->status) { + default: + case RRDCALC_STATUS_REMOVED: + break; + + case RRDCALC_STATUS_CLEAR: + s->health.alerts.clear++; + break; + + case RRDCALC_STATUS_WARNING: + s->health.alerts.warning++; + break; + + case RRDCALC_STATUS_CRITICAL: + s->health.alerts.critical++; + break; + + case RRDCALC_STATUS_UNDEFINED: + s->health.alerts.undefined++; + break; + + case RRDCALC_STATUS_UNINITIALIZED: + s->health.alerts.uninitialized++; + break; + } + } + foreach_rrdcalc_in_rrdhost_done(rc); + } + } + else + s->health.status = RRDHOST_HEALTH_STATUS_DISABLED; +} |