diff options
Diffstat (limited to 'database/rrdhost.c')
| -rw-r--r-- | database/rrdhost.c | 1002 |
1 files changed, 834 insertions, 168 deletions
diff --git a/database/rrdhost.c b/database/rrdhost.c index bf540a209..1af27114d 100644 --- a/database/rrdhost.c +++ b/database/rrdhost.c @@ -103,6 +103,28 @@ static inline void rrdhost_init_machine_guid(RRDHOST *host, const char *machine_ host->hash_machine_guid = simple_hash(host->machine_guid); } +void set_host_properties(RRDHOST *host, int update_every, RRD_MEMORY_MODE memory_mode, const char *hostname, + const char *registry_hostname, const char *guid, const char *os, const char *tags, + const char *tzone, const char *program_name, const char *program_version) +{ + + host->rrd_update_every = update_every; + host->rrd_memory_mode = memory_mode; + + rrdhost_init_hostname(host, hostname); + + rrdhost_init_machine_guid(host, guid); + + rrdhost_init_os(host, os); + rrdhost_init_timezone(host, tzone); + rrdhost_init_tags(host, tags); + + host->program_name = strdupz((program_name && *program_name) ? program_name : "unknown"); + host->program_version = strdupz((program_version && *program_version) ? program_version : "unknown"); + + host->registry_hostname = strdupz((registry_hostname && *registry_hostname) ? registry_hostname : host->hostname); +} + // ---------------------------------------------------------------------------- // RRDHOST - add a host @@ -127,18 +149,26 @@ RRDHOST *rrdhost_create(const char *hostname, ) { debug(D_RRDHOST, "Host '%s': adding with guid '%s'", hostname, guid); +#ifdef ENABLE_DBENGINE + int is_legacy = (memory_mode == RRD_MEMORY_MODE_DBENGINE) && is_legacy_child(guid); +#else + int is_legacy = 1; +#endif rrd_check_wrlock(); + int is_in_multihost = (memory_mode == RRD_MEMORY_MODE_DBENGINE && !is_legacy); RRDHOST *host = callocz(1, sizeof(RRDHOST)); - host->rrd_update_every = (update_every > 0)?update_every:1; + set_host_properties(host, (update_every > 0)?update_every:1, memory_mode, hostname, registry_hostname, guid, os, + tags, timezone, program_name, program_version); + host->rrd_history_entries = align_entries_to_pagesize(memory_mode, entries); - host->rrd_memory_mode = memory_mode; -#ifdef ENABLE_DBENGINE - host->page_cache_mb = default_rrdeng_page_cache_mb; - host->disk_space_mb = default_rrdeng_disk_quota_mb; -#endif - host->health_enabled = (memory_mode == RRD_MEMORY_MODE_NONE)? 0 : health_enabled; + host->health_enabled = ((memory_mode == RRD_MEMORY_MODE_NONE)) ? 0 : health_enabled; + + host->sender = mallocz(sizeof(*host->sender)); + sender_init(host->sender, host); + netdata_mutex_init(&host->receiver_lock); + host->rrdpush_send_enabled = (rrdpush_enabled && rrdpush_destination && *rrdpush_destination && rrdpush_api_key && *rrdpush_api_key) ? 1 : 0; host->rrdpush_send_destination = (host->rrdpush_send_enabled)?strdupz(rrdpush_destination):NULL; host->rrdpush_send_api_key = (host->rrdpush_send_enabled)?strdupz(rrdpush_api_key):NULL; @@ -147,6 +177,8 @@ RRDHOST *rrdhost_create(const char *hostname, host->rrdpush_sender_pipe[0] = -1; host->rrdpush_sender_pipe[1] = -1; host->rrdpush_sender_socket = -1; + + //host->stream_version = STREAMING_PROTOCOL_CURRENT_VERSION; Unused? #ifdef ENABLE_HTTPS host->ssl.conn = NULL; host->ssl.flags = NETDATA_SSL_START; @@ -154,19 +186,10 @@ RRDHOST *rrdhost_create(const char *hostname, host->stream_ssl.flags = NETDATA_SSL_START; #endif - netdata_mutex_init(&host->rrdpush_sender_buffer_mutex); netdata_rwlock_init(&host->rrdhost_rwlock); + netdata_rwlock_init(&host->labels.labels_rwlock); - rrdhost_init_hostname(host, hostname); - rrdhost_init_machine_guid(host, guid); - - rrdhost_init_os(host, os); - rrdhost_init_timezone(host, timezone); - rrdhost_init_tags(host, tags); - - host->program_name = strdupz((program_name && *program_name)?program_name:"unknown"); - host->program_version = strdupz((program_version && *program_version)?program_version:"unknown"); - host->registry_hostname = strdupz((registry_hostname && *registry_hostname)?registry_hostname:hostname); + netdata_mutex_init(&host->aclk_state_lock); host->system_info = system_info; @@ -192,8 +215,8 @@ RRDHOST *rrdhost_create(const char *hostname, host->health_log.next_log_id = 1; host->health_log.next_alarm_id = 1; host->health_log.max = 1000; - host->health_log.next_log_id = - host->health_log.next_alarm_id = (uint32_t)now_realtime_sec(); + host->health_log.next_log_id = (uint32_t)now_realtime_sec(); + host->health_log.next_alarm_id = 0; long n = config_get_number(CONFIG_SECTION_HEALTH, "in memory max health log entries", host->health_log.max); if(n < 10) { @@ -215,12 +238,15 @@ RRDHOST *rrdhost_create(const char *hostname, } else { // this is not localhost - append our GUID to localhost path + if (is_in_multihost) { // don't append to cache dir in multihost + host->cache_dir = strdupz(netdata_configured_cache_dir); + } else { + snprintfz(filename, FILENAME_MAX, "%s/%s", netdata_configured_cache_dir, host->machine_guid); + host->cache_dir = strdupz(filename); + } - snprintfz(filename, FILENAME_MAX, "%s/%s", netdata_configured_cache_dir, host->machine_guid); - host->cache_dir = strdupz(filename); - - if(host->rrd_memory_mode == RRD_MEMORY_MODE_MAP || host->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || - host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { + if((host->rrd_memory_mode == RRD_MEMORY_MODE_MAP || host->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || ( + host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE && is_legacy))) { int r = mkdir(host->cache_dir, 0775); if(r != 0 && errno != EEXIST) error("Host '%s': cannot create directory '%s'", host->hostname, host->cache_dir); @@ -236,30 +262,6 @@ RRDHOST *rrdhost_create(const char *hostname, } } - if (host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { -#ifdef ENABLE_DBENGINE - char dbenginepath[FILENAME_MAX + 1]; - int ret; - - snprintfz(dbenginepath, FILENAME_MAX, "%s/dbengine", host->cache_dir); - ret = mkdir(dbenginepath, 0775); - if(ret != 0 && errno != EEXIST) - error("Host '%s': cannot create directory '%s'", host->hostname, dbenginepath); - else - ret = rrdeng_init(&host->rrdeng_ctx, dbenginepath, host->page_cache_mb, host->disk_space_mb); - if(ret) { - error("Host '%s': cannot initialize host with machine guid '%s'. Failed to initialize DB engine at '%s'.", - host->hostname, host->machine_guid, host->cache_dir); - rrdhost_free(host); - host = NULL; - //rrd_hosts_available++; //TODO: maybe we want this? - - return host; - } -#else - fatal("RRD_MEMORY_MODE_DBENGINE is not supported in this platform."); -#endif - } if(host->health_enabled) { snprintfz(filename, FILENAME_MAX, "%s/health", host->varlib_dir); @@ -288,6 +290,51 @@ RRDHOST *rrdhost_create(const char *hostname, health_alarm_log_open(host); } + RRDHOST *t = rrdhost_index_add(host); + + if(t != host) { + error("Host '%s': cannot add host with machine guid '%s' to index. It already exists as host '%s' with machine guid '%s'.", host->hostname, host->machine_guid, t->hostname, t->machine_guid); + rrdhost_free(host); + return NULL; + } + + if (host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { +#ifdef ENABLE_DBENGINE + if (likely(!uuid_parse(host->machine_guid, host->host_uuid))) { + int rc = sql_store_host(&host->host_uuid, hostname, registry_hostname, update_every, os, timezone, tags); + if (unlikely(rc)) + error_report("Failed to store machine GUID to the database"); + } + else + error_report("Host machine GUID %s is not valid", host->machine_guid); + char dbenginepath[FILENAME_MAX + 1]; + int ret; + + snprintfz(dbenginepath, FILENAME_MAX, "%s/dbengine", host->cache_dir); + ret = mkdir(dbenginepath, 0775); + if (ret != 0 && errno != EEXIST) + error("Host '%s': cannot create directory '%s'", host->hostname, dbenginepath); + else ret = 0; // succeed + if (is_legacy) // initialize legacy dbengine instance as needed + ret = rrdeng_init(host, &host->rrdeng_ctx, dbenginepath, default_rrdeng_page_cache_mb, + default_rrdeng_disk_quota_mb); // may fail here for legacy dbengine initialization + else + host->rrdeng_ctx = &multidb_ctx; + if (ret) { // check legacy or multihost initialization success + error( + "Host '%s': cannot initialize host with machine guid '%s'. Failed to initialize DB engine at '%s'.", + host->hostname, host->machine_guid, host->cache_dir); + rrdhost_free(host); + host = NULL; + //rrd_hosts_available++; //TODO: maybe we want this? + + return host; + } + +#else + fatal("RRD_MEMORY_MODE_DBENGINE is not supported in this platform."); +#endif + } // ------------------------------------------------------------------------ // link it and add it to the index @@ -304,57 +351,150 @@ RRDHOST *rrdhost_create(const char *hostname, else localhost = host; } - RRDHOST *t = rrdhost_index_add(host); + info("Host '%s' (at registry as '%s') with guid '%s' initialized" + ", os '%s'" + ", timezone '%s'" + ", tags '%s'" + ", program_name '%s'" + ", program_version '%s'" + ", update every %d" + ", memory mode %s" + ", history entries %ld" + ", streaming %s" + " (to '%s' with api key '%s')" + ", health %s" + ", cache_dir '%s'" + ", varlib_dir '%s'" + ", health_log '%s'" + ", alarms default handler '%s'" + ", alarms default recipient '%s'" + , host->hostname + , host->registry_hostname + , host->machine_guid + , host->os + , host->timezone + , (host->tags)?host->tags:"" + , host->program_name + , host->program_version + , host->rrd_update_every + , rrd_memory_mode_name(host->rrd_memory_mode) + , host->rrd_history_entries + , host->rrdpush_send_enabled?"enabled":"disabled" + , host->rrdpush_send_destination?host->rrdpush_send_destination:"" + , host->rrdpush_send_api_key?host->rrdpush_send_api_key:"" + , host->health_enabled?"enabled":"disabled" + , host->cache_dir + , host->varlib_dir + , host->health_log_filename + , host->health_default_exec + , host->health_default_recipient + ); - if(t != host) { - error("Host '%s': cannot add host with machine guid '%s' to index. It already exists as host '%s' with machine guid '%s'.", host->hostname, host->machine_guid, t->hostname, t->machine_guid); - rrdhost_free(host); - host = NULL; + rrd_hosts_available++; + + return host; +} + +void rrdhost_update(RRDHOST *host + , const char *hostname + , const char *registry_hostname + , const char *guid + , const char *os + , const char *timezone + , const char *tags + , const char *program_name + , const char *program_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 + , struct rrdhost_system_info *system_info +) +{ + UNUSED(guid); + UNUSED(rrdpush_enabled); + UNUSED(rrdpush_destination); + UNUSED(rrdpush_api_key); + UNUSED(rrdpush_send_charts_matching); + + host->health_enabled = (mode == RRD_MEMORY_MODE_NONE) ? 0 : health_enabled; + //host->stream_version = STREAMING_PROTOCOL_CURRENT_VERSION; Unused? + + rrdhost_system_info_free(host->system_info); + host->system_info = system_info; + + rrdhost_init_os(host, os); + rrdhost_init_timezone(host, timezone); + + freez(host->registry_hostname); + host->registry_hostname = strdupz((registry_hostname && *registry_hostname)?registry_hostname:hostname); + + if(strcmp(host->hostname, hostname) != 0) { + info("Host '%s' has been renamed to '%s'. If this is not intentional it may mean multiple hosts are using the same machine_guid.", host->hostname, hostname); + char *t = host->hostname; + host->hostname = strdupz(hostname); + host->hash_hostname = simple_hash(host->hostname); + freez(t); } - else { - info("Host '%s' (at registry as '%s') with guid '%s' initialized" - ", os '%s'" - ", timezone '%s'" - ", tags '%s'" - ", program_name '%s'" - ", program_version '%s'" - ", update every %d" - ", memory mode %s" - ", history entries %ld" - ", streaming %s" - " (to '%s' with api key '%s')" - ", health %s" - ", cache_dir '%s'" - ", varlib_dir '%s'" - ", health_log '%s'" - ", alarms default handler '%s'" - ", alarms default recipient '%s'" - , host->hostname - , host->registry_hostname - , host->machine_guid - , host->os - , host->timezone - , (host->tags)?host->tags:"" - , host->program_name - , host->program_version - , host->rrd_update_every - , rrd_memory_mode_name(host->rrd_memory_mode) - , host->rrd_history_entries - , host->rrdpush_send_enabled?"enabled":"disabled" - , host->rrdpush_send_destination?host->rrdpush_send_destination:"" - , host->rrdpush_send_api_key?host->rrdpush_send_api_key:"" - , host->health_enabled?"enabled":"disabled" - , host->cache_dir - , host->varlib_dir - , host->health_log_filename - , host->health_default_exec - , host->health_default_recipient - ); + + if(strcmp(host->program_name, program_name) != 0) { + info("Host '%s' switched program name from '%s' to '%s'", host->hostname, host->program_name, program_name); + char *t = host->program_name; + host->program_name = strdupz(program_name); + freez(t); } - rrd_hosts_available++; + if(strcmp(host->program_version, program_version) != 0) { + info("Host '%s' switched program version from '%s' to '%s'", host->hostname, host->program_version, program_version); + char *t = host->program_version; + host->program_version = strdupz(program_version); + freez(t); + } - return host; + if(host->rrd_update_every != update_every) + error("Host '%s' has an update frequency of %d seconds, but the wanted one is %d seconds. Restart netdata here to apply the new settings.", host->hostname, host->rrd_update_every, update_every); + + if(host->rrd_history_entries < history) + error("Host '%s' has history of %ld entries, but the wanted one is %ld entries. Restart netdata here to apply the new settings.", host->hostname, host->rrd_history_entries, history); + + if(host->rrd_memory_mode != mode) + error("Host '%s' has memory mode '%s', but the wanted one is '%s'. Restart netdata here to apply the new settings.", host->hostname, rrd_memory_mode_name(host->rrd_memory_mode), rrd_memory_mode_name(mode)); + + // update host tags + rrdhost_init_tags(host, tags); + + if (rrdhost_flag_check(host, RRDHOST_FLAG_ARCHIVED)) { + rrdhost_flag_clear(host, RRDHOST_FLAG_ARCHIVED); + if(host->health_enabled) { + int r; + char filename[FILENAME_MAX + 1]; + + if (host != localhost) { + r = mkdir(host->varlib_dir, 0775); + if (r != 0 && errno != EEXIST) + error("Host '%s': cannot create directory '%s'", host->hostname, host->varlib_dir); + } + snprintfz(filename, FILENAME_MAX, "%s/health", host->varlib_dir); + r = mkdir(filename, 0775); + if(r != 0 && errno != EEXIST) + error("Host '%s': cannot create directory '%s'", host->hostname, filename); + + rrdhost_wrlock(host); + health_readdir(host, health_user_config_dir(), health_stock_config_dir(), NULL); + rrdhost_unlock(host); + + health_alarm_log_load(host); + health_alarm_log_open(host); + } + rrd_hosts_available++; + info("Host %s is not in archived mode anymore", host->hostname); + } + + return; } RRDHOST *rrdhost_find_or_create( @@ -380,6 +520,13 @@ RRDHOST *rrdhost_find_or_create( rrd_wrlock(); RRDHOST *host = rrdhost_find_by_guid(guid, 0); + if (unlikely(host && RRD_MEMORY_MODE_DBENGINE != mode && rrdhost_flag_check(host, RRDHOST_FLAG_ARCHIVED))) { + /* If a legacy memory mode instantiates all dbengine state must be discarded to avoid inconsistencies */ + error("Archived host '%s' has memory mode '%s', but the wanted one is '%s'. Discarding archived state.", + host->hostname, rrd_memory_mode_name(host->rrd_memory_mode), rrd_memory_mode_name(mode)); + rrdhost_free(host); + host = NULL; + } if(!host) { host = rrdhost_create( hostname @@ -403,41 +550,30 @@ RRDHOST *rrdhost_find_or_create( ); } else { - host->health_enabled = health_enabled; - - if(strcmp(host->hostname, hostname) != 0) { - info("Host '%s' has been renamed to '%s'. If this is not intentional it may mean multiple hosts are using the same machine_guid.", host->hostname, hostname); - char *t = host->hostname; - host->hostname = strdupz(hostname); - host->hash_hostname = simple_hash(host->hostname); - freez(t); - } - - if(strcmp(host->program_name, program_name) != 0) { - info("Host '%s' switched program name from '%s' to '%s'", host->hostname, host->program_name, program_name); - char *t = host->program_name; - host->program_name = strdupz(program_name); - freez(t); - } - - if(strcmp(host->program_version, program_version) != 0) { - info("Host '%s' switched program version from '%s' to '%s'", host->hostname, host->program_version, program_version); - char *t = host->program_version; - host->program_version = strdupz(program_version); - freez(t); - } - - if(host->rrd_update_every != update_every) - error("Host '%s' has an update frequency of %d seconds, but the wanted one is %d seconds. Restart netdata here to apply the new settings.", host->hostname, host->rrd_update_every, update_every); - - if(host->rrd_history_entries < history) - error("Host '%s' has history of %ld entries, but the wanted one is %ld entries. Restart netdata here to apply the new settings.", host->hostname, host->rrd_history_entries, history); - - if(host->rrd_memory_mode != mode) - error("Host '%s' has memory mode '%s', but the wanted one is '%s'. Restart netdata here to apply the new settings.", host->hostname, rrd_memory_mode_name(host->rrd_memory_mode), rrd_memory_mode_name(mode)); - - // update host tags - rrdhost_init_tags(host, tags); + rrdhost_update(host + , hostname + , registry_hostname + , guid + , os + , timezone + , tags + , program_name + , program_version + , update_every + , history + , mode + , health_enabled + , rrdpush_enabled + , rrdpush_destination + , rrdpush_api_key + , rrdpush_send_charts_matching + , system_info); + } + if (host) { + rrdhost_wrlock(host); + rrdhost_flag_clear(host, RRDHOST_FLAG_ORPHAN); + host->senders_disconnected_time = 0; + rrdhost_unlock(host); } rrdhost_cleanup_orphan_hosts_nolock(host); @@ -446,12 +582,11 @@ RRDHOST *rrdhost_find_or_create( return host; } - inline int rrdhost_should_be_removed(RRDHOST *host, RRDHOST *protected, time_t now) { if(host != protected && host != localhost && rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN) - && !host->connected_senders + && host->receiver && host->senders_disconnected_time && host->senders_disconnected_time + rrdhost_free_orphan_time < now) return 1; @@ -469,7 +604,12 @@ restart_after_removal: if(rrdhost_should_be_removed(host, protected, now)) { info("Host '%s' with machine guid '%s' is obsolete - cleaning up.", host->hostname, host->machine_guid); - if(rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_ORPHAN_HOST)) + if (rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_ORPHAN_HOST) +#ifdef ENABLE_DBENGINE + /* don't delete multi-host DB host files */ + && !(host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE && host->rrdeng_ctx == &multidb_ctx) +#endif + ) rrdhost_delete_charts(host); else rrdhost_save_charts(host); @@ -483,14 +623,20 @@ restart_after_removal: // ---------------------------------------------------------------------------- // RRDHOST global / startup initialization -void rrd_init(char *hostname, struct rrdhost_system_info *system_info) { +int rrd_init(char *hostname, struct rrdhost_system_info *system_info) { rrdset_free_obsolete_time = config_get_number(CONFIG_SECTION_GLOBAL, "cleanup obsolete charts after seconds", rrdset_free_obsolete_time); gap_when_lost_iterations_above = (int)config_get_number(CONFIG_SECTION_GLOBAL, "gap when lost iterations above", gap_when_lost_iterations_above); if (gap_when_lost_iterations_above < 1) gap_when_lost_iterations_above = 1; +#ifdef ENABLE_DBENGINE + if (unlikely(sql_init_database())) { + return 1; + } +#endif + health_init(); - registry_init(); + rrdpush_init(); debug(D_RRDHOST, "Initializing localhost with hostname '%s'", hostname); @@ -515,8 +661,34 @@ void rrd_init(char *hostname, struct rrdhost_system_info *system_info) { , system_info , 1 ); + if (unlikely(!localhost)) { + rrd_unlock(); + return 1; + } + +#ifdef ENABLE_DBENGINE + char dbenginepath[FILENAME_MAX + 1]; + int ret; + snprintfz(dbenginepath, FILENAME_MAX, "%s/dbengine", localhost->cache_dir); + ret = mkdir(dbenginepath, 0775); + if (ret != 0 && errno != EEXIST) + error("Host '%s': cannot create directory '%s'", localhost->hostname, dbenginepath); + else // Unconditionally create multihost db to support on demand host creation + ret = rrdeng_init(NULL, NULL, dbenginepath, default_rrdeng_page_cache_mb, default_multidb_disk_quota_mb); + if (ret) { + error( + "Host '%s' with machine guid '%s' failed to initialize multi-host DB engine instance at '%s'.", + localhost->hostname, localhost->machine_guid, localhost->cache_dir); + rrdhost_free(localhost); + localhost = NULL; + rrd_unlock(); + return 1; + } +#endif rrd_unlock(); - web_client_api_v1_management_init(); + + web_client_api_v1_management_init(); + return localhost==NULL; } // ---------------------------------------------------------------------------- @@ -562,12 +734,22 @@ void rrdhost_system_info_free(struct rrdhost_system_info *system_info) { info("SYSTEM_INFO: free %p", system_info); if(likely(system_info)) { - freez(system_info->os_name); - freez(system_info->os_id); - freez(system_info->os_id_like); - freez(system_info->os_version); - freez(system_info->os_version_id); - freez(system_info->os_detection); + 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); @@ -575,10 +757,12 @@ void rrdhost_system_info_free(struct rrdhost_system_info *system_info) { freez(system_info->virt_detection); freez(system_info->container); freez(system_info->container_detection); + freez(system_info->is_k8s_node); freez(system_info); } } +void destroy_receiver_state(struct receiver_state *rpt); void rrdhost_free(RRDHOST *host) { if(!host) return; @@ -586,17 +770,48 @@ void rrdhost_free(RRDHOST *host) { rrd_check_wrlock(); // make sure the RRDs are write locked - // stop a possibly running thread - rrdpush_sender_thread_stop(host); + // ------------------------------------------------------------------------ + // clean up streaming + rrdpush_sender_thread_stop(host); // stop a possibly running thread + cbuffer_free(host->sender->buffer); + buffer_free(host->sender->build); + freez(host->sender); + host->sender = NULL; + if (netdata_exit) { + netdata_mutex_lock(&host->receiver_lock); + if (host->receiver) { + if (!host->receiver->exited) + netdata_thread_cancel(host->receiver->thread); + netdata_mutex_unlock(&host->receiver_lock); + struct receiver_state *rpt = host->receiver; + while (host->receiver && !rpt->exited) + sleep_usec(50 * USEC_PER_MS); + // If the receiver detached from the host then its thread will destroy the state + if (host->receiver == rpt) + destroy_receiver_state(host->receiver); + } + else + netdata_mutex_unlock(&host->receiver_lock); + } + + rrdhost_wrlock(host); // lock this RRDHOST // ------------------------------------------------------------------------ // release its children resources +#ifdef ENABLE_DBENGINE + if (host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { + if (host->rrdeng_ctx != &multidb_ctx) + rrdeng_prepare_exit(host->rrdeng_ctx); + } +#endif while(host->rrdset_root) rrdset_free(host->rrdset_root); + freez(host->exporting_flags); + while(host->alarms) rrdcalc_unlink_and_free(host, host->alarms); @@ -622,11 +837,10 @@ void rrdhost_free(RRDHOST *host) { health_alarm_log_free(host); - if (host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { #ifdef ENABLE_DBENGINE + if (host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE && host->rrdeng_ctx != &multidb_ctx) rrdeng_exit(host->rrdeng_ctx); #endif - } // ------------------------------------------------------------------------ // remove it from the indexes @@ -651,10 +865,15 @@ void rrdhost_free(RRDHOST *host) { else error("Request to free RRDHOST '%s': cannot find it", host->hostname); } + + // ------------------------------------------------------------------------ // free it + pthread_mutex_destroy(&host->aclk_state_lock); + freez(host->aclk_state.claimed_id); freez((void *)host->tags); + free_label_list(host->labels.head); freez((void *)host->os); freez((void *)host->timezone); freez(host->program_version); @@ -671,8 +890,10 @@ void rrdhost_free(RRDHOST *host) { freez(host->registry_hostname); simple_pattern_free(host->rrdpush_send_charts_matching); rrdhost_unlock(host); + netdata_rwlock_destroy(&host->labels.labels_rwlock); netdata_rwlock_destroy(&host->health_log.alarm_log_rwlock); netdata_rwlock_destroy(&host->rrdhost_rwlock); + freez(host); rrd_hosts_available--; @@ -680,7 +901,9 @@ void rrdhost_free(RRDHOST *host) { void rrdhost_free_all(void) { rrd_wrlock(); - while(localhost) rrdhost_free(localhost); + /* Make sure child-hosts are released before the localhost. */ + while(localhost->next) rrdhost_free(localhost->next); + rrdhost_free(localhost); rrd_unlock(); } @@ -707,6 +930,323 @@ void rrdhost_save_charts(RRDHOST *host) { rrdhost_unlock(host); } +static struct label *rrdhost_load_auto_labels(void) +{ + struct label *label_list = NULL; + + if (localhost->system_info->host_os_name) + label_list = + add_label_to_list(label_list, "_os_name", localhost->system_info->host_os_name, LABEL_SOURCE_AUTO); + + if (localhost->system_info->host_os_version) + label_list = + add_label_to_list(label_list, "_os_version", localhost->system_info->host_os_version, LABEL_SOURCE_AUTO); + + if (localhost->system_info->kernel_version) + label_list = + add_label_to_list(label_list, "_kernel_version", localhost->system_info->kernel_version, LABEL_SOURCE_AUTO); + + if (localhost->system_info->host_cores) + label_list = + add_label_to_list(label_list, "_system_cores", localhost->system_info->host_cores, LABEL_SOURCE_AUTO); + + if (localhost->system_info->host_cpu_freq) + label_list = + add_label_to_list(label_list, "_system_cpu_freq", localhost->system_info->host_cpu_freq, LABEL_SOURCE_AUTO); + + if (localhost->system_info->host_ram_total) + label_list = + add_label_to_list(label_list, "_system_ram_total", localhost->system_info->host_ram_total, LABEL_SOURCE_AUTO); + + if (localhost->system_info->host_disk_space) + label_list = + add_label_to_list(label_list, "_system_disk_space", localhost->system_info->host_disk_space, LABEL_SOURCE_AUTO); + + if (localhost->system_info->architecture) + label_list = + add_label_to_list(label_list, "_architecture", localhost->system_info->architecture, LABEL_SOURCE_AUTO); + + if (localhost->system_info->virtualization) + label_list = + add_label_to_list(label_list, "_virtualization", localhost->system_info->virtualization, LABEL_SOURCE_AUTO); + + if (localhost->system_info->container) + label_list = + add_label_to_list(label_list, "_container", localhost->system_info->container, LABEL_SOURCE_AUTO); + + if (localhost->system_info->container_detection) + label_list = + add_label_to_list(label_list, "_container_detection", localhost->system_info->container_detection, LABEL_SOURCE_AUTO); + + if (localhost->system_info->virt_detection) + label_list = + add_label_to_list(label_list, "_virt_detection", localhost->system_info->virt_detection, LABEL_SOURCE_AUTO); + + if (localhost->system_info->is_k8s_node) + label_list = + add_label_to_list(label_list, "_is_k8s_node", localhost->system_info->is_k8s_node, LABEL_SOURCE_AUTO); + + label_list = add_label_to_list( + label_list, "_is_parent", (localhost->next || configured_as_parent()) ? "true" : "false", LABEL_SOURCE_AUTO); + + if (localhost->rrdpush_send_destination) + label_list = + add_label_to_list(label_list, "_streams_to", localhost->rrdpush_send_destination, LABEL_SOURCE_AUTO); + + return label_list; +} + +static inline int rrdhost_is_valid_label_config_option(char *name, char *value) +{ + return (is_valid_label_key(name) && is_valid_label_value(value) && strcmp(name, "from environment") && + strcmp(name, "from kubernetes pods")); +} + +static struct label *rrdhost_load_config_labels() +{ + int status = config_load(NULL, 1, CONFIG_SECTION_HOST_LABEL); + if(!status) { + char *filename = CONFIG_DIR "/" CONFIG_FILENAME; + error("LABEL: Cannot reload the configuration file '%s', using labels in memory", filename); + } + + struct label *l = NULL; + 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) { + if(rrdhost_is_valid_label_config_option(cv->name, cv->value)) { + l = add_label_to_list(l, cv->name, cv->value, LABEL_SOURCE_NETDATA_CONF); + cv->flags |= CONFIG_VALUE_USED; + } else { + error("LABELS: It was not possible to create the label '%s' because it contains invalid character(s) or values." + , cv->name); + } + } + config_section_unlock(co); + } + + return l; +} + +struct label *parse_simple_tags( + struct label *label_list, + const char *tags, + char key_value_separator, + char label_separator, + STRIP_QUOTES_OPTION strip_quotes_from_key, + STRIP_QUOTES_OPTION strip_quotes_from_value, + SKIP_ESCAPED_CHARACTERS_OPTION skip_escaped_characters) +{ + const char *end = tags; + + while (*end) { + const char *start = end; + char key[CONFIG_MAX_VALUE + 1]; + char value[CONFIG_MAX_VALUE + 1]; + + while (*end && *end != key_value_separator) + end++; + strncpyz(key, start, end - start); + + if (*end) + start = ++end; + while (*end && *end != label_separator) + end++; + strncpyz(value, start, end - start); + + label_list = add_label_to_list( + label_list, + strip_quotes_from_key ? strip_double_quotes(trim(key), skip_escaped_characters) : trim(key), + strip_quotes_from_value ? strip_double_quotes(trim(value), skip_escaped_characters) : trim(value), + LABEL_SOURCE_NETDATA_CONF); + + if (*end) + end++; + } + + return label_list; +} + +struct label *parse_json_tags(struct label *label_list, const char *tags) +{ + char tags_buf[CONFIG_MAX_VALUE + 1]; + strncpy(tags_buf, tags, CONFIG_MAX_VALUE); + char *str = tags_buf; + + switch (*str) { + case '{': + str++; + strip_last_symbol(str, '}', SKIP_ESCAPED_CHARACTERS); + + label_list = parse_simple_tags(label_list, str, ':', ',', STRIP_QUOTES, STRIP_QUOTES, SKIP_ESCAPED_CHARACTERS); + + break; + case '[': + str++; + strip_last_symbol(str, ']', SKIP_ESCAPED_CHARACTERS); + + char *end = str + strlen(str); + size_t i = 0; + + while (str < end) { + char key[CONFIG_MAX_VALUE + 1]; + snprintfz(key, CONFIG_MAX_VALUE, "host_tag%zu", i); + + str = strip_double_quotes(trim(str), SKIP_ESCAPED_CHARACTERS); + + label_list = add_label_to_list(label_list, key, str, LABEL_SOURCE_NETDATA_CONF); + + // skip to the next element in the array + str += strlen(str) + 1; + while (*str && *str != ',') + str++; + str++; + i++; + } + + break; + case '"': + label_list = add_label_to_list( + label_list, "host_tag", strip_double_quotes(str, SKIP_ESCAPED_CHARACTERS), LABEL_SOURCE_NETDATA_CONF); + break; + default: + label_list = add_label_to_list(label_list, "host_tag", str, LABEL_SOURCE_NETDATA_CONF); + break; + } + + return label_list; +} + +static struct label *rrdhost_load_labels_from_tags(void) +{ + if (!localhost->tags) + return NULL; + + struct label *label_list = NULL; + BACKEND_TYPE type = BACKEND_TYPE_UNKNOWN; + + if (config_exists(CONFIG_SECTION_BACKEND, "enabled")) { + if (config_get_boolean(CONFIG_SECTION_BACKEND, "enabled", CONFIG_BOOLEAN_NO) != CONFIG_BOOLEAN_NO) { + const char *type_name = config_get(CONFIG_SECTION_BACKEND, "type", "graphite"); + type = backend_select_type(type_name); + } + } + + switch (type) { + case BACKEND_TYPE_GRAPHITE: + label_list = parse_simple_tags( + label_list, localhost->tags, '=', ';', DO_NOT_STRIP_QUOTES, DO_NOT_STRIP_QUOTES, + DO_NOT_SKIP_ESCAPED_CHARACTERS); + break; + case BACKEND_TYPE_OPENTSDB_USING_TELNET: + label_list = parse_simple_tags( + label_list, localhost->tags, '=', ' ', DO_NOT_STRIP_QUOTES, DO_NOT_STRIP_QUOTES, + DO_NOT_SKIP_ESCAPED_CHARACTERS); + break; + case BACKEND_TYPE_OPENTSDB_USING_HTTP: + label_list = parse_simple_tags( + label_list, localhost->tags, ':', ',', STRIP_QUOTES, STRIP_QUOTES, + DO_NOT_SKIP_ESCAPED_CHARACTERS); + break; + case BACKEND_TYPE_JSON: + label_list = parse_json_tags(label_list, localhost->tags); + break; + default: + label_list = parse_simple_tags( + label_list, localhost->tags, '=', ',', DO_NOT_STRIP_QUOTES, STRIP_QUOTES, + DO_NOT_SKIP_ESCAPED_CHARACTERS); + break; + } + + return label_list; +} + +static struct label *rrdhost_load_kubernetes_labels(void) +{ + struct label *l=NULL; + char *label_script = mallocz(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)) { + error("Kubernetes pod label fetching script %s not found.",label_script); + freez(label_script); + } else { + pid_t command_pid; + + debug(D_RRDHOST, "Attempting to fetch external labels via %s", label_script); + + FILE *fp = mypopen(label_script, &command_pid); + if(fp) { + int MAX_LINE_SIZE=300; + char buffer[MAX_LINE_SIZE + 1]; + while (fgets(buffer, MAX_LINE_SIZE, fp) != NULL) { + char *name=buffer; + char *value=buffer; + while (*value && *value != ':') value++; + if (*value == ':') { + *value = '\0'; + value++; + } + char *eos=value; + while (*eos && *eos != '\n') eos++; + if (*eos == '\n') *eos = '\0'; + if (strlen(value)>0) { + if (is_valid_label_key(name)){ + l = add_label_to_list(l, name, value, LABEL_SOURCE_KUBERNETES); + } else { + info("Ignoring invalid label name '%s'", name); + } + } else { + error("%s outputted unexpected result: '%s'", label_script, name); + } + }; + // 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 retcode=mypclose(fp, command_pid); + if (retcode) { + error("%s exited abnormally. No kubernetes labels will be added to the host.", label_script); + struct label *ll=l; + while (ll != NULL) { + info("Ignoring Label [source id=%s]: \"%s\" -> \"%s\"\n", translate_label_source(ll->label_source), ll->key, ll->value); + ll = ll->next; + freez(l); + l=ll; + } + } + } + freez(label_script); + } + + return l; +} + +void reload_host_labels(void) +{ + struct label *from_auto = rrdhost_load_auto_labels(); + struct label *from_k8s = rrdhost_load_kubernetes_labels(); + struct label *from_config = rrdhost_load_config_labels(); + struct label *from_tags = rrdhost_load_labels_from_tags(); + + struct label *new_labels = merge_label_lists(from_auto, from_k8s); + new_labels = merge_label_lists(new_labels, from_tags); + new_labels = merge_label_lists(new_labels, from_config); + + rrdhost_rdlock(localhost); + replace_label_list(&localhost->labels, new_labels); + + health_label_log_save(localhost); + rrdhost_unlock(localhost); + +/* TODO-GAPS - fix this so that it looks properly at the state and version of the sender + if(localhost->rrdpush_send_enabled && localhost->rrdpush_sender_buffer){ + localhost->labels.labels_flag |= LABEL_FLAG_UPDATE_STREAM; + rrdpush_send_labels(localhost); + } +*/ + health_reload(); +} + // ---------------------------------------------------------------------------- // RRDHOST - delete host files @@ -789,7 +1329,12 @@ void rrdhost_cleanup_all(void) { RRDHOST *host; rrdhost_foreach_read(host) { - if(host != localhost && rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_OBSOLETE_CHARTS) && !host->connected_senders) + if (host != localhost && rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_ORPHAN_HOST) && !host->receiver +#ifdef ENABLE_DBENGINE + /* don't delete multi-host DB host files */ + && !(host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE && host->rrdeng_ctx == &multidb_ctx) +#endif + ) rrdhost_delete_charts(host); else rrdhost_cleanup_charts(host); @@ -816,7 +1361,57 @@ restart_after_removal: && st->last_updated.tv_sec + rrdset_free_obsolete_time < now && st->last_collected_time.tv_sec + rrdset_free_obsolete_time < now )) { - +#ifdef ENABLE_DBENGINE + if(st->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) { + RRDDIM *rd, *last; + + rrdset_flag_set(st, RRDSET_FLAG_ARCHIVED); + while (st->variables) rrdsetvar_free(st->variables); + while (st->alarms) rrdsetcalc_unlink(st->alarms); + rrdset_wrlock(st); + for (rd = st->dimensions, last = NULL ; likely(rd) ; ) { + if (rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED)) { + last = rd; + rd = rd->next; + continue; + } + + rrddim_flag_set(rd, RRDDIM_FLAG_ARCHIVED); + while (rd->variables) + rrddimvar_free(rd->variables); + + if (rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) { + rrddim_flag_clear(rd, RRDDIM_FLAG_OBSOLETE); + /* only a collector can mark a chart as obsolete, so we must remove the reference */ + uint8_t can_delete_metric = rd->state->collect_ops.finalize(rd); + if (can_delete_metric) { + /* This metric has no data and no references */ + delete_dimension_uuid(rd->state->metric_uuid); + rrddim_free(st, rd); + if (unlikely(!last)) { + rd = st->dimensions; + } + else { + rd = last->next; + } + continue; + } + } + last = rd; + rd = rd->next; + } + rrdset_unlock(st); + + debug(D_RRD_CALLS, "RRDSET: Cleaning up remaining chart variables for host '%s', chart '%s'", host->hostname, st->id); + rrdvar_free_remaining_variables(host, &st->rrdvar_root_index); + + rrdset_flag_clear(st, RRDSET_FLAG_OBSOLETE); + if (st->dimensions) { + /* If the chart still has dimensions don't delete it from the metadata log */ + continue; + } + } +#endif rrdset_rdlock(st); if(rrdhost_delete_obsolete_charts) @@ -834,38 +1429,80 @@ restart_after_removal: // ---------------------------------------------------------------------------- // 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_SYSTEM_OS_NAME")){ - freez(system_info->os_name); - system_info->os_name = strdupz(value); + if (!strcmp(name, "NETDATA_PROTOCOL_VERSION")) + return res; + 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_SYSTEM_OS_ID")){ - freez(system_info->os_id); - system_info->os_id = 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_SYSTEM_OS_ID_LIKE")){ - freez(system_info->os_id_like); - system_info->os_id_like = 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_SYSTEM_OS_VERSION")){ - freez(system_info->os_version); - system_info->os_version = 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_SYSTEM_OS_VERSION_ID")){ - freez(system_info->os_version_id); - system_info->os_version_id = 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_SYSTEM_OS_DETECTION")){ - freez(system_info->os_detection); - system_info->os_detection = strdupz(value); + else if(!strcmp(name, "NETDATA_CONTAINER_OS_DETECTION")){ + freez(system_info->host_os_detection); + system_info->host_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); + } + 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); @@ -890,6 +1527,20 @@ int rrdhost_set_system_info_variable(struct rrdhost_system_info *system_info, ch 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 { res = 1; } @@ -936,3 +1587,18 @@ int alarm_compare_name(void *a, void *b) { return strcmp(in1->name,in2->name); } + +// Added for gap-filling, if this proves to be a bottleneck in large-scale systems then we will need to cache +// the last entry times as the metric updates, but let's see if it is a problem first. +time_t rrdhost_last_entry_t(RRDHOST *h) { + rrdhost_rdlock(h); + RRDSET *st; + time_t result = 0; + rrdset_foreach_read(st, h) { + time_t st_last = rrdset_last_entry_t(st); + if (st_last > result) + result = st_last; + } + rrdhost_unlock(h); + return result; +} |