diff options
Diffstat (limited to 'health/health.c')
| -rw-r--r-- | health/health.c | 1730 |
1 files changed, 112 insertions, 1618 deletions
diff --git a/health/health.c b/health/health.c index 2eb782cb44..7039a193cc 100644 --- a/health/health.c +++ b/health/health.c @@ -1,1678 +1,172 @@ // SPDX-License-Identifier: GPL-3.0-or-later #include "health.h" +#include "health_internals.h" -#define WORKER_HEALTH_JOB_RRD_LOCK 0 -#define WORKER_HEALTH_JOB_HOST_LOCK 1 -#define WORKER_HEALTH_JOB_DB_QUERY 2 -#define WORKER_HEALTH_JOB_CALC_EVAL 3 -#define WORKER_HEALTH_JOB_WARNING_EVAL 4 -#define WORKER_HEALTH_JOB_CRITICAL_EVAL 5 -#define WORKER_HEALTH_JOB_ALARM_LOG_ENTRY 6 -#define WORKER_HEALTH_JOB_ALARM_LOG_PROCESS 7 -#define WORKER_HEALTH_JOB_DELAYED_INIT_RRDSET 8 -#define WORKER_HEALTH_JOB_DELAYED_INIT_RRDDIM 9 +struct health_plugin_globals health_globals = { + .initialization = { + .spinlock = NETDATA_SPINLOCK_INITIALIZER, + .done = false, + }, + .config = { + .enabled = true, + .stock_enabled = true, + .use_summary_for_notifications = true, -#if WORKER_UTILIZATION_MAX_JOB_TYPES < 10 -#error WORKER_UTILIZATION_MAX_JOB_TYPES has to be at least 10 -#endif + .health_log_entries_max = HEALTH_LOG_ENTRIES_DEFAULT, + .health_log_history = HEALTH_LOG_HISTORY_DEFAULT, -unsigned int default_health_enabled = 1; -char *silencers_filename; -SIMPLE_PATTERN *conf_enabled_alarms = NULL; -DICTIONARY *health_rrdvars; + .default_warn_repeat_every = 0, + .default_crit_repeat_every = 0, -bool health_alarm_log_get_global_id_and_transition_id_for_rrdcalc(RRDCALC *rc, usec_t *global_id, uuid_t *transitions_id) { - if(!rc->rrdset) - return false; - - RRDHOST *host = rc->rrdset->rrdhost; - - rw_spinlock_read_lock(&host->health_log.spinlock); - - ALARM_ENTRY *ae; - for(ae = host->health_log.alarms; ae ; ae = ae->next) { - if(unlikely(ae->alarm_id == rc->id)) - break; - } - - if(ae) { - *global_id = ae->global_id; - uuid_copy(*transitions_id, ae->transition_id); - } - else { - *global_id = 0; - uuid_clear(*transitions_id); + .run_at_least_every_seconds = 10, + .postpone_alarms_during_hibernation_for_seconds = 60, + }, + .prototypes = { + .dict = NULL, } +}; - rw_spinlock_read_unlock(&host->health_log.spinlock); - - return ae != NULL; +bool health_plugin_enabled(void) { + return health_globals.config.enabled; } -void health_entry_flags_to_json_array(BUFFER *wb, const char *key, HEALTH_ENTRY_FLAGS flags) { - buffer_json_member_add_array(wb, key); - - if(flags & HEALTH_ENTRY_FLAG_PROCESSED) - buffer_json_add_array_item_string(wb, "PROCESSED"); - if(flags & HEALTH_ENTRY_FLAG_UPDATED) - buffer_json_add_array_item_string(wb, "UPDATED"); - if(flags & HEALTH_ENTRY_FLAG_EXEC_RUN) - buffer_json_add_array_item_string(wb, "EXEC_RUN"); - if(flags & HEALTH_ENTRY_FLAG_EXEC_FAILED) - buffer_json_add_array_item_string(wb, "EXEC_FAILED"); - if(flags & HEALTH_ENTRY_FLAG_SILENCED) - buffer_json_add_array_item_string(wb, "SILENCED"); - if(flags & HEALTH_ENTRY_RUN_ONCE) - buffer_json_add_array_item_string(wb, "RUN_ONCE"); - if(flags & HEALTH_ENTRY_FLAG_EXEC_IN_PROGRESS) - buffer_json_add_array_item_string(wb, "EXEC_IN_PROGRESS"); - if(flags & HEALTH_ENTRY_FLAG_IS_REPEATING) - buffer_json_add_array_item_string(wb, "RECURRING"); - if(flags & HEALTH_ENTRY_FLAG_SAVED) - buffer_json_add_array_item_string(wb, "SAVED"); - if(flags & HEALTH_ENTRY_FLAG_ACLK_QUEUED) - buffer_json_add_array_item_string(wb, "ACLK_QUEUED"); - if(flags & HEALTH_ENTRY_FLAG_NO_CLEAR_NOTIFICATION) - buffer_json_add_array_item_string(wb, "NO_CLEAR_NOTIFICATION"); - - buffer_json_array_close(wb); +void health_plugin_disable(void) { + health_globals.config.enabled = false; } -static bool prepare_command(BUFFER *wb, - const char *exec, - const char *recipient, - const char *registry_hostname, - uint32_t unique_id, - uint32_t alarm_id, - uint32_t alarm_event_id, - uint32_t when, - const char *alert_name, - const char *alert_chart_name, - const char *new_status, - const char *old_status, - NETDATA_DOUBLE new_value, - NETDATA_DOUBLE old_value, - const char *alert_source, - uint32_t duration, - uint32_t non_clear_duration, - const char *alert_units, - const char *alert_info, - const char *new_value_string, - const char *old_value_string, - const char *source, - const char *error_msg, - int n_warn, - int n_crit, - const char *warn_alarms, - const char *crit_alarms, - const char *classification, - const char *edit_command, - const char *machine_guid, - uuid_t *transition_id, - const char *summary, - const char *context, - const char *component, - const char *type -) { - char buf[8192]; - size_t n = sizeof(buf) - 1; - - buffer_strcat(wb, "exec"); - - if (!sanitize_command_argument_string(buf, exec, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, recipient, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, registry_hostname, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - buffer_sprintf(wb, " '%u'", unique_id); - - buffer_sprintf(wb, " '%u'", alarm_id); - - buffer_sprintf(wb, " '%u'", alarm_event_id); - - buffer_sprintf(wb, " '%u'", when); - - if (!sanitize_command_argument_string(buf, alert_name, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, alert_chart_name, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, new_status, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, old_status, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - buffer_sprintf(wb, " '" NETDATA_DOUBLE_FORMAT_ZERO "'", new_value); - - buffer_sprintf(wb, " '" NETDATA_DOUBLE_FORMAT_ZERO "'", old_value); - - if (!sanitize_command_argument_string(buf, alert_source, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - buffer_sprintf(wb, " '%u'", duration); - - buffer_sprintf(wb, " '%u'", non_clear_duration); - - if (!sanitize_command_argument_string(buf, alert_units, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, alert_info, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, new_value_string, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, old_value_string, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, source, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); - - if (!sanitize_command_argument_string(buf, error_msg, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); +static void health_load_config_defaults(void) { + char filename[FILENAME_MAX + 1]; - buffer_sprintf(wb, " '%d'", n_warn); + health_globals.config.enabled = + config_get_boolean(CONFIG_SECTION_HEALTH, + "enabled", + health_globals.config.enabled); - buffer_sprintf(wb, " '%d'", n_crit); + health_globals.config.stock_enabled = + config_get_boolean(CONFIG_SECTION_HEALTH, + "enable stock health configuration", + health_globals.config.stock_enabled); - if (!sanitize_command_argument_string(buf, warn_alarms, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.use_summary_for_notifications = + config_get_boolean(CONFIG_SECTION_HEALTH, + "use summary for notifications", + health_globals.config.use_summary_for_notifications); - if (!sanitize_command_argument_string(buf, crit_alarms, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.default_warn_repeat_every = + config_get_duration(CONFIG_SECTION_HEALTH, "default repeat warning", "never"); - if (!sanitize_command_argument_string(buf, classification, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.default_crit_repeat_every = + config_get_duration(CONFIG_SECTION_HEALTH, "default repeat critical", "never"); - if (!sanitize_command_argument_string(buf, edit_command, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.health_log_entries_max = + config_get_number(CONFIG_SECTION_HEALTH, "in memory max health log entries", + health_globals.config.health_log_entries_max); - if (!sanitize_command_argument_string(buf, machine_guid, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.health_log_history = + config_get_number(CONFIG_SECTION_HEALTH, "health log history", HEALTH_LOG_DEFAULT_HISTORY); - char tr_id[UUID_STR_LEN]; - uuid_unparse_lower(*transition_id, tr_id); - if (!sanitize_command_argument_string(buf, tr_id, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + snprintfz(filename, FILENAME_MAX, "%s/alarm-notify.sh", netdata_configured_primary_plugins_dir); + health_globals.config.default_exec = + string_strdupz(config_get(CONFIG_SECTION_HEALTH, "script to execute on alarm", filename)); - if (!sanitize_command_argument_string(buf, summary, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.enabled_alerts = + simple_pattern_create(config_get(CONFIG_SECTION_HEALTH, "enabled alarms", "*"), + NULL, SIMPLE_PATTERN_EXACT, true); - if (!sanitize_command_argument_string(buf, context, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.run_at_least_every_seconds = + (int)config_get_number(CONFIG_SECTION_HEALTH, + "run at least every seconds", + health_globals.config.run_at_least_every_seconds); - if (!sanitize_command_argument_string(buf, component, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.postpone_alarms_during_hibernation_for_seconds = + config_get_number(CONFIG_SECTION_HEALTH, + "postpone alarms during hibernation for seconds", + health_globals.config.postpone_alarms_during_hibernation_for_seconds); - if (!sanitize_command_argument_string(buf, type, n)) - return false; - buffer_sprintf(wb, " '%s'", buf); + health_globals.config.default_recipient = + string_strdupz("root"); - return true; -} - -// the queue of executed alarm notifications that haven't been waited for yet -static struct { - ALARM_ENTRY *head; // oldest - ALARM_ENTRY *tail; // latest -} alarm_notifications_in_progress = {NULL, NULL}; + // ------------------------------------------------------------------------ + // verify after loading -typedef struct active_alerts { - char *name; - time_t last_status_change; - RRDCALC_STATUS status; -} active_alerts_t; + if(health_globals.config.run_at_least_every_seconds < 1) + health_globals.config.run_at_least_every_seconds = 1; -static inline void enqueue_alarm_notify_in_progress(ALARM_ENTRY *ae) -{ - ae->prev_in_progress = NULL; - ae->next_in_progress = NULL; + if(health_globals.config.health_log_entries_max < HEALTH_LOG_ENTRIES_MIN) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Health configuration has invalid max log entries %u, using minimum of %u", + health_globals.config.health_log_entries_max, + HEALTH_LOG_ENTRIES_MIN); - if (NULL != alarm_notifications_in_progress.tail) { - ae->prev_in_progress = alarm_notifications_in_progress.tail; - alarm_notifications_in_progress.tail->next_in_progress = ae; - } - if (NULL == alarm_notifications_in_progress.head) { - alarm_notifications_in_progress.head = ae; + health_globals.config.health_log_entries_max = HEALTH_LOG_ENTRIES_MIN; + config_set_number(CONFIG_SECTION_HEALTH, "in memory max health log entries", + (long)health_globals.config.health_log_entries_max); } - alarm_notifications_in_progress.tail = ae; + else if(health_globals.config.health_log_entries_max > HEALTH_LOG_ENTRIES_MAX) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Health configuration has invalid max log entries %u, using maximum of %u", + health_globals.config.health_log_entries_max, + HEALTH_LOG_ENTRIES_MAX); -} + health_globals.config.health_log_entries_max = HEALTH_LOG_ENTRIES_MAX; + config_set_number(CONFIG_SECTION_HEALTH, "in memory max health log entries", + (long)health_globals.config.health_log_entries_max); + } -static inline void unlink_alarm_notify_in_progress(ALARM_ENTRY *ae) -{ - struct alarm_entry *prev = ae->prev_in_progress; - struct alarm_entry *next = ae->next_in_progress; + if (health_globals.config.health_log_history < HEALTH_LOG_MINIMUM_HISTORY) { + nd_log(NDLS_DAEMON, NDLP_WARNING, + "Health configuration has invalid health log history %u. Using minimum %d", + health_globals.config.health_log_history, HEALTH_LOG_MINIMUM_HISTORY); - if (NULL != prev) { - prev->next_in_progress = next; - } - if (NULL != next) { - next->prev_in_progress = prev; - } - if (ae == alarm_notifications_in_progress.head) { - alarm_notifications_in_progress.head = next; - } - if (ae == alarm_notifications_in_progress.tail) { - alarm_notifications_in_progress.tail = prev; + health_globals.config.health_log_history = HEALTH_LOG_MINIMUM_HISTORY; + config_set_number(CONFIG_SECTION_HEALTH, "health log history", health_globals.config.health_log_history); } + + nd_log(NDLS_DAEMON, NDLP_DEBUG, + "Health log history is set to %u seconds (%u days)", + health_globals.config.health_log_history, health_globals.config.health_log_history / 86400); } -// ---------------------------------------------------------------------------- -// health initialization -/** - * User Config directory - * - * Get the config directory for health and return it. - * - * @return a pointer to the user config directory - */ inline char *health_user_config_dir(void) { char buffer[FILENAME_MAX + 1]; snprintfz(buffer, FILENAME_MAX, "%s/health.d", netdata_configured_user_config_dir); return config_get(CONFIG_SECTION_DIRECTORIES, "health config", buffer); } -/** - * Stock Config Directory - * - * Get the Stock config directory and return it. - * - * @return a pointer to the stock config directory. - */ inline char *health_stock_config_dir(void) { char buffer[FILENAME_MAX + 1]; snprintfz(buffer, FILENAME_MAX, "%s/health.d", netdata_configured_stock_config_dir); return config_get(CONFIG_SECTION_DIRECTORIES, "stock health config", buffer); } -/** - * Silencers init - * - * Function used to initialize the silencer structure. - */ -static void health_silencers_init(void) { - FILE *fd = fopen(silencers_filename, "r"); - if (fd) { - fseek(fd, 0 , SEEK_END); - off_t length = (off_t) ftell(fd); - fseek(fd, 0 , SEEK_SET); - - if (length > 0 && length < HEALTH_SILENCERS_MAX_FILE_LEN) { - char *str = mallocz((length+1)* sizeof(char)); - if(str) { - size_t copied; - copied = fread(str, sizeof(char), length, fd); - if (copied == (length* sizeof(char))) { - str[length] = 0x00; - json_parse(str, NULL, health_silencers_json_read_callback); - netdata_log_info("Parsed health silencers file %s", silencers_filename); - } else { - netdata_log_error("Cannot read the data from health silencers file %s", silencers_filename); - } - freez(str); - } - } else { - netdata_log_error("Health silencers file %s has the size %" PRId64 " that is out of range[ 1 , %d ]. Aborting read.", - silencers_filename, - (int64_t)length, - HEALTH_SILENCERS_MAX_FILE_LEN); - } - fclose(fd); - } else { - netdata_log_info("Cannot open the file %s, so Netdata will work with the default health configuration.", - silencers_filename); - } -} - -/** - * Health Init - * - * Initialize the health thread. - */ -void health_init(void) { - netdata_log_debug(D_HEALTH, "Health configuration initializing"); - - if(!(default_health_enabled = (unsigned int)config_get_boolean(CONFIG_SECTION_HEALTH, "enabled", default_health_enabled))) { - netdata_log_debug(D_HEALTH, "Health is disabled."); - return; - } - - health_silencers_init(); -} - -// ---------------------------------------------------------------------------- -// re-load health configuration - -/** - * Reload host - * - * Reload configuration for a specific host. - * - * @param host the structure of the host that the function will reload the configuration. - */ -static void health_reload_host(RRDHOST *host) { - if(unlikely(!host->health.health_enabled) && !rrdhost_flag_check(host, RRDHOST_FLAG_INITIALIZED_HEALTH)) - return; - - nd_log(NDLS_DAEMON, NDLP_DEBUG, - "[%s]: Reloading health.", - rrdhost_hostname(host)); - - char *user_path = health_user_config_dir(); - char *stock_path = health_stock_config_dir(); - - // free all running alarms - rrdcalc_delete_all(host); - rrdcalctemplate_delete_all(host); - - // invalidate all previous entries in the alarm log - rw_spinlock_read_lock(&host->health_log.spinlock); - ALARM_ENTRY *t; - for(t = host->health_log.alarms ; t ; t = t->next) { - if(t->new_status != RRDCALC_STATUS_REMOVED) - t->flags |= HEALTH_ENTRY_FLAG_UPDATED; - } - rw_spinlock_read_unlock(&host->health_log.spinlock); - - // reset all thresholds to all charts - RRDSET *st; - rrdset_foreach_read(st, host) { - st->green = NAN; - st->red = NAN; - } - rrdset_foreach_done(st); - - // load the new alarms - health_readdir(host, user_path, stock_path, NULL); - - //Discard alarms with labels that do not apply to host - rrdcalc_delete_alerts_not_matching_host_labels_from_this_host(host); - - // link the loaded alarms to their charts - rrdset_foreach_write(st, host) { - rrdcalc_link_matching_alerts_to_rrdset(st); - rrdcalctemplate_link_matching_templates_to_rrdset(st); - } - rrdset_foreach_done(st); - -#ifdef ENABLE_ACLK - if (netdata_cloud_enabled) { - struct aclk_sync_cfg_t *wc = host->aclk_config; - if (likely(wc)) { - wc->alert_queue_removed = SEND_REMOVED_AFTER_HEALTH_LOOPS; - } - } -#endif -} - -/** - * Reload - * - * Reload the host configuration for all hosts. - */ -void health_reload(void) { - sql_refresh_hashes(); - - RRDHOST *host; - dfe_start_reentrant(rrdhost_root_index, host){ - health_reload_host(host); - } - dfe_done(host); -} - -// ---------------------------------------------------------------------------- -// health main thread and friends - -static inline RRDCALC_STATUS rrdcalc_value2status(NETDATA_DOUBLE n) { - if(isnan(n) || isinf(n)) return RRDCALC_STATUS_UNDEFINED; - if(n) return RRDCALC_STATUS_RAISED; - return RRDCALC_STATUS_CLEAR; -} - -#define ACTIVE_ALARMS_LIST_EXAMINE 500 -#define ACTIVE_ALARMS_LIST 15 - -static inline int compare_active_alerts(const void * a, const void * b) { - active_alerts_t *active_alerts_a = (active_alerts_t *)a; - active_alerts_t *active_alerts_b = (active_alerts_t *)b; - - return (int) ( active_alerts_b->last_status_change - active_alerts_a->last_status_change ); -} - -static inline void health_alarm_execute(RRDHOST *host, ALARM_ENTRY *ae) { - ae->flags |= HEALTH_ENTRY_FLAG_PROCESSED; - - if(unlikely(ae->new_status < RRDCALC_STATUS_CLEAR)) { - // do not send notifications for internal statuses - netdata_log_debug(D_HEALTH, "Health not sending notification for alarm '%s.%s' status %s (internal statuses)", ae_chart_id(ae), ae_name(ae), rrdcalc_status2string(ae->new_status)); - goto done; - } - - if(unlikely(ae->new_status <= RRDCALC_STATUS_CLEAR && (ae->flags & HEALTH_ENTRY_FLAG_NO_CLEAR_NOTIFICATION))) { - // do not send notifications for disabled statuses - - nd_log(NDLS_DAEMON, NDLP_DEBUG, - "[%s]: Health not sending notification for alarm '%s.%s' status %s (it has no-clear-notification enabled)", - rrdhost_hostname(host), ae_chart_id(ae), ae_name(ae), rrdcalc_status2string(ae->new_status)); - - // mark it as run, so that we will send the same alarm if it happens again - goto done; - } - - // find the previous notification for the same alarm - // which we have run the exec script - // exception: alarms with HEALTH_ENTRY_FLAG_NO_CLEAR_NOTIFICATION set - RRDCALC_STATUS last_executed_status = -3; - if(likely(!(ae->flags & HEALTH_ENTRY_FLAG_NO_CLEAR_NOTIFICATION))) { - int ret = sql_health_get_last_executed_event(host, ae, &last_executed_status); - - if (likely(ret == 1)) { - // we have executed this alarm notification in the past - if(last_executed_status == ae->new_status && !(ae->flags & HEALTH_ENTRY_FLAG_IS_REPEATING)) { - // don't send the notification for the same status again - nd_log(NDLS_DAEMON, NDLP_DEBUG, - "[%s]: Health not sending again notification for alarm '%s.%s' status %s", - rrdhost_hostname(host), ae_chart_id(ae), ae_name(ae), - rrdcalc_status2string(ae->new_status)); - goto done; - } - } - else { - // we have not executed this alarm notification in the past - // so, don't send CLEAR notifications - if(unlikely(ae->new_status == RRDCALC_STATUS_CLEAR)) { - if((!(ae->flags & HEALTH_ENTRY_RUN_ONCE)) || (ae->flags & HEALTH_ENTRY_RUN_ONCE && ae->old_status < RRDCALC_STATUS_RAISED) ) { - netdata_log_debug(D_HEALTH, "Health not sending notification for first initialization of alarm '%s.%s' status %s" - , ae_chart_id(ae), ae_name(ae), rrdcalc_status2string(ae->new_status)); - goto done; - } - } - } - } - - // Check if alarm notifications are silenced - if (ae->flags & HEALTH_ENTRY_FLAG_SILENCED) { - nd_log(NDLS_DAEMON, NDLP_DEBUG, - "[%s]: Health not sending notification for alarm '%s.%s' status %s " - "(command API has disabled notifications)", - rrdhost_hostname(host), ae_chart_id(ae), ae_name(ae), rrdcalc_status2string(ae->new_status)); - goto done; - } - - nd_log(NDLS_DAEMON, NDLP_DEBUG, - "[%s]: Sending notification for alarm '%s.%s' status %s.", - rrdhost_hostname(host), ae_chart_id(ae), ae_name(ae), rrdcalc_status2string(ae->new_status)); - - const char *exec = (ae->exec) ? ae_exec(ae) : string2str(host->health.health_default_exec); - const char *recipient = (ae->recipient) ? ae_recipient(ae) : string2str(host->health.health_default_recipient); - - int n_warn=0, n_crit=0; - RRDCALC *rc; - EVAL_EXPRESSION *expr=NULL; - BUFFER *warn_alarms, *crit_alarms; - active_alerts_t *active_alerts = callocz(ACTIVE_ALARMS_LIST_EXAMINE, sizeof(active_alerts_t)); - - warn_alarms = buffer_create(NETDATA_WEB_RESPONSE_INITIAL_SIZE, &netdata_buffers_statistics.buffers_health); - crit_alarms = buffer_create(NETDATA_WEB_RESPONSE_INITIAL_SIZE, &netdata_buffers_statistics.buffers_health); - - foreach_rrdcalc_in_rrdhost_read(host, rc) { - if(unlikely(!rc->rrdset || !rc->rrdset->last_collected_time.tv_sec)) - continue; - - if(unlikely((n_warn + n_crit) >= ACTIVE_ALARMS_LIST_EXAMINE)) - break; - - if (unlikely(rc->status == RRDCALC_STATUS_WARNING)) { - if (likely(ae->alarm_id != rc->id) || likely(ae->alarm_event_id != rc->next_event_id - 1)) { - active_alerts[n_warn+n_crit].name = (char *)rrdcalc_name(rc); - active_alerts[n_warn+n_crit].last_status_change = rc->last_status_change; - active_alerts[n_warn+n_crit].status = rc->status; - n_warn++; - } else if (ae->alarm_id == rc->id) - expr = rc->warning; - } else if (unlikely(rc->status == RRDCALC_STATUS_CRITICAL)) { - if (likely(ae->alarm_id != rc->id) || likely(ae->alarm_event_id != rc->next_event_id - 1)) { - active_alerts[n_warn+n_crit].name = (char *)rrdcalc_name(rc); - active_alerts[n_warn+n_crit].last_status_change = rc->last_status_change; - active_alerts[n_warn+n_crit].status = rc->status; - n_crit++; - } else if (ae->alarm_id == rc->id) - expr = rc->critical; - } else if (unlikely(rc->status == RRDCALC_STATUS_CLEAR)) { - if (ae->alarm_id == rc->id) - expr = rc->warning; - } - } - foreach_rrdcalc_in_rrdhost_done(rc); - - if (n_warn+n_crit>1) - qsort (active_alerts, n_warn+n_crit, sizeof(active_alerts_t), compare_active_alerts); - - int count_w = 0, count_c = 0; - while (count_w + count_c < n_warn + n_crit && count_w + count_c < ACTIVE_ALARMS_LIST) { - if (active_alerts[count_w+count_c].status == RRDCALC_STATUS_WARNING) { - if (count_w) - buffer_strcat(warn_alarms, ","); - buffer_strcat(warn_alarms, active_alerts[count_w+count_c].name); - buffer_strcat(warn_alarms, "="); - buffer_snprintf(warn_alarms, 11, "%"PRId64"", (int64_t)active_alerts[count_w+count_c].last_status_change); - count_w++; - } - else if (active_alerts[count_w+count_c].status == RRDCALC_STATUS_CRITICAL) { - if (count_c) - buffer_strcat(crit_alarms, ","); - buffer_strcat(crit_alarms, active_alerts[count_w+count_c].name); - buffer_strcat(crit_alarms, "="); - buffer_snprintf(crit_alarms, 11, "%"PRId64"", (int64_t)active_alerts[count_w+count_c].last_status_change); - count_c++; - } - } - - char *edit_command = ae->source ? health_edit_command_from_source(ae_source(ae)) : strdupz("UNKNOWN=0=UNKNOWN"); - - BUFFER *wb = buffer_create(8192, &netdata_buffers_statistics.buffers_health); - bool ok = prepare_command(wb, - exec, - recipient, - rrdhost_registry_hostname(host), - ae->unique_id, - ae->alarm_id, - ae->alarm_event_id, - (unsigned long)ae->when, - ae_name(ae), - ae->chart?ae_chart_id(ae):"NOCHART", - rrdcalc_status2string(ae->new_status), - rrdcalc_status2string(ae->old_status), - ae->new_value, - ae->old_value, - ae->source?ae_source(ae):"UNKNOWN", - (uint32_t)ae->duration, - (ae->flags & HEALTH_ENTRY_FLAG_IS_REPEATING && ae->new_status >= RRDCALC_STATUS_WARNING) ? (uint32_t)ae->duration : (uint32_t)ae->non_clear_duration, - ae_units(ae), - ae_info(ae), - ae_new_value_string(ae), - ae_old_value_string(ae), - (expr && expr->source)?expr->source:"NOSOURCE", - (expr && expr->error_msg)?buffer_tostring(expr->error_msg):"NOERRMSG", - n_warn, - n_crit, - buffer_tostring(warn_alarms), - buffer_tostring(crit_alarms), - ae->classification?ae_classification(ae):"Unknown", - edit_command, - host->machine_guid, - &ae->transition_id, - host->health.use_summary_for_notifications && ae->summary?ae_summary(ae):ae_name(ae), - string2str(ae->chart_context), - string2str(ae->component), - string2str(ae->type) - ); - - const char *command_to_run = buffer_tostring(wb); - if (ok) { - ae->flags |= HEALTH_ENTRY_FLAG_EXEC_RUN; - ae->exec_run_timestamp = now_realtime_sec(); /* will be updated by real time after spawning */ - - netdata_log_debug(D_HEALTH, "executing command '%s'", command_to_run); - ae->flags |= HEALTH_ENTRY_FLAG_EXEC_IN_PROGRESS; - ae->exec_spawn_serial = spawn_enq_cmd(command_to_run); - enqueue_alarm_notify_in_progress(ae); - health_alarm_log_save(host, ae); - } else { - netdata_log_error("Failed to format command arguments"); - } - - buffer_free(wb); - freez(edit_command); - buffer_free(warn_alarms); - buffer_free(crit_alarms); - freez(active_alerts); - - return; //health_alarm_wait_for_execution -done: - health_alarm_log_save(host, ae); -} - -static inline void health_alarm_wait_for_execution(ALARM_ENTRY *ae) { - if (!(ae->flags & HEALTH_ENTRY_FLAG_EXEC_IN_PROGRESS)) - return; - - spawn_wait_cmd(ae->exec_spawn_serial, &ae->exec_code, &ae->exec_run_timestamp); - netdata_log_debug(D_HEALTH, "done executing command - returned with code %d", ae->exec_code); - ae->flags &= ~HEALTH_ENTRY_FLAG_EXEC_IN_PROGRESS; - - if(ae->exec_code != 0) - ae->flags |= HEALTH_ENTRY_FLAG_EXEC_FAILED; - - unlink_alarm_notify_in_progress(ae); -} - -static inline void health_process_notifications(RRDHOST *host, ALARM_ENTRY *ae) { - netdata_log_debug(D_HEALTH, "Health alarm '%s.%s' = " NETDATA_DOUBLE_FORMAT_AUTO " - changed status from %s to %s", - ae->chart?ae_chart_id(ae):"NOCHART", ae_name(ae), - ae->new_value, - rrdcalc_status2string(ae->old_status), - rrdcalc_status2string(ae->new_status) - ); - - health_alarm_execute(host, ae); -} - -static inline void health_alarm_log_process(RRDHOST *host) { - uint32_t first_waiting = (host->health_log.alarms)?host->health_log.alarms->unique_id:0; - time_t now = now_realtime_sec(); - - rw_spinlock_read_lock(&host->health_log.spinlock); - - ALARM_ENTRY *ae; - for(ae = host->health_log.alarms; ae && ae->unique_id >= host->health_last_processed_id; ae = ae->next) { - if(unlikely( - !(ae->flags & HEALTH_ENTRY_FLAG_PROCESSED) && - !(ae->flags & HEALTH_ENTRY_FLAG_UPDATED) - )) { - if(unlikely(ae->unique_id < first_waiting)) - first_waiting = ae->unique_id; - - if(likely(now >= ae->delay_up_to_timestamp)) - health_process_notifications(host, ae); - } - } - - rw_spinlock_read_unlock(&host->health_log.spinlock); - - // remember this for the next iteration - host->health_last_processed_id = first_waiting; - - //delete those that are updated, no in progress execution, and is not repeating - rw_spinlock_write_lock(&host->health_log.spinlock); - - ALARM_ENTRY *prev = NULL, *next = NULL; - for(ae = host->health_log.alarms; ae ; ae = next) { - next = ae->next; // set it here, for the next iteration - - if((likely(!(ae->flags & HEALTH_ENTRY_FLAG_IS_REPEATING)) && - (ae->flags & HEALTH_ENTRY_FLAG_UPDATED) && - (ae->flags & HEALTH_ENTRY_FLAG_SAVED) && - !(ae->flags & HEALTH_ENTRY_FLAG_EXEC_IN_PROGRESS)) - || - ((ae->new_status == RRDCALC_STATUS_REMOVED) && - (ae->flags & HEALTH_ENTRY_FLAG_SAVED) && - (ae->when + 86400 < now_realtime_sec()))) - { - - if(host->health_log.alarms == ae) { - host->health_log.alarms = next; - // prev is also NULL here - } - else { - prev->next = next; - // prev should not be touched here - we need it for the next iteration - // because we may have to also remove the next item - } - - health_alarm_log_free_one_nochecks_nounlink(ae); - } - else - prev = ae; - } - - rw_spinlock_write_unlock(&host->health_log.spinlock); -} - -static inline int rrdcalc_isrunnable(RRDCALC *rc, time_t now, time_t *next_run) { - if(unlikely(!rc->rrdset)) { - netdata_log_debug(D_HEALTH, "Health not running alarm '%s.%s'. It is not linked to a chart.", rrdcalc_chart_name(rc), rrdcalc_name(rc)); - return 0; - } - - if(unlikely(rc->next_update > now)) { - if (unlikely(*next_run > rc->next_update)) { - // update the next_run time of the main loop - // to run this alarm precisely the time required - *next_run = rc->next_update; - } - - netdata_log_debug(D_HEALTH, "Health not examining alarm '%s.%s' yet (will do in %d secs).", rrdcalc_chart_name(rc), rrdcalc_name(rc), (int) (rc->next_update - now)); - return 0; - } - - if(unlikely(!rc->update_every)) { - netdata_log_debug(D_HEALTH, "Health not running alarm '%s.%s'. It does not have an update frequency", rrdcalc_chart_name(rc), rrdcalc_name(rc)); - return 0; - } - - if(unlikely(rrdset_flag_check(rc->rrdset, RRDSET_FLAG_OBSOLETE))) { - netdata_log_debug(D_HEALTH, "Health not running alarm '%s.%s'. The chart has been marked as obsolete", rrdcalc_chart_name(rc), rrdcalc_name(rc)); - return 0; - } - - if(unlikely(!rc->rrdset->last_collected_time.tv_sec || rc->rrdset->counter_done < 2)) { - netdata_log_debug(D_HEALTH, "Health not running alarm '%s.%s'. Chart is not fully collected yet.", rrdcalc_chart_name(rc), rrdcalc_name(rc)); - return 0; - } - - int update_every = rc->rrdset->update_eve |