diff options
Diffstat (limited to '')
| -rw-r--r-- | database/rrdcalc.c | 1120 |
1 files changed, 578 insertions, 542 deletions
diff --git a/database/rrdcalc.c b/database/rrdcalc.c index cab60468b..aad945a90 100644 --- a/database/rrdcalc.c +++ b/database/rrdcalc.c @@ -1,10 +1,9 @@ // SPDX-License-Identifier: GPL-3.0-or-later -#define NETDATA_HEALTH_INTERNALS #include "rrd.h" // ---------------------------------------------------------------------------- -// RRDCALC management +// RRDCALC helpers inline const char *rrdcalc_status2string(RRDCALC_STATUS status) { switch(status) { @@ -35,55 +34,219 @@ inline const char *rrdcalc_status2string(RRDCALC_STATUS status) { } } -static void rrdsetcalc_link(RRDSET *st, RRDCALC *rc) { +uint32_t rrdcalc_get_unique_id(RRDHOST *host, STRING *chart, STRING *name, uint32_t *next_event_id) { + netdata_rwlock_rdlock(&host->health_log.alarm_log_rwlock); + + // re-use old IDs, by looking them up in the alarm log + ALARM_ENTRY *ae = NULL; + for(ae = host->health_log.alarms; ae ;ae = ae->next) { + if(unlikely(name == ae->name && chart == ae->chart)) { + if(next_event_id) *next_event_id = ae->alarm_event_id + 1; + break; + } + } + + uint32_t alarm_id; + + if(ae) + alarm_id = ae->alarm_id; + + else { + if (unlikely(!host->health_log.next_alarm_id)) + host->health_log.next_alarm_id = (uint32_t)now_realtime_sec(); + + alarm_id = host->health_log.next_alarm_id++; + } + + netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); + return alarm_id; +} + +// ---------------------------------------------------------------------------- +// RRDCALC replacing info text variables with RRDSET labels + +static STRING *rrdcalc_replace_variables_with_rrdset_labels(const char *line, RRDCALC *rc) { + if (!line || !*line) + return NULL; + + size_t pos = 0; + char *temp = strdupz(line); + char var[RRDCALC_VAR_MAX]; + char *m, *lbl_value = NULL; + + while ((m = strchr(temp + pos, '$'))) { + int i = 0; + char *e = m; + while (*e) { + + if (*e == ' ' || i == RRDCALC_VAR_MAX - 1) + break; + else + var[i] = *e; + + e++; + i++; + } + + var[i] = '\0'; + pos = m - temp + 1; + + if (!strcmp(var, RRDCALC_VAR_FAMILY)) { + char *buf = find_and_replace(temp, var, (rc->rrdset && rc->rrdset->family) ? rrdset_family(rc->rrdset) : "", m); + freez(temp); + temp = buf; + } + else if (!strncmp(var, RRDCALC_VAR_LABEL, RRDCALC_VAR_LABEL_LEN)) { + if(likely(rc->rrdset && rc->rrdset->rrdlabels)) { + rrdlabels_get_value_to_char_or_null(rc->rrdset->rrdlabels, &lbl_value, var+RRDCALC_VAR_LABEL_LEN); + if (lbl_value) { + char *buf = find_and_replace(temp, var, lbl_value, m); + freez(temp); + temp = buf; + freez(lbl_value); + } + } + } + } + + STRING *ret = string_strdupz(temp); + freez(temp); + + return ret; +} + +void rrdcalc_update_info_using_rrdset_labels(RRDCALC *rc) { + if(!rc->rrdset || !rc->original_info || !rc->rrdset->rrdlabels) return; + + size_t labels_version = dictionary_version(rc->rrdset->rrdlabels); + if(rc->labels_version != labels_version) { + + STRING *old = rc->info; + rc->info = rrdcalc_replace_variables_with_rrdset_labels(rrdcalc_original_info(rc), rc); + string_freez(old); + + rc->labels_version = labels_version; + } +} + +// ---------------------------------------------------------------------------- +// RRDCALC index management for RRDSET + +// the dictionary requires a unique key for every item +// we use {chart id}.{alert name} for both the RRDHOST and RRDSET alert indexes. + +#define RRDCALC_MAX_KEY_SIZE 1024 +static size_t rrdcalc_key(char *dst, size_t dst_len, const char *chart, const char *alert) { + return snprintfz(dst, dst_len, "%s/%s", chart, alert); +} + +const RRDCALC_ACQUIRED *rrdcalc_from_rrdset_get(RRDSET *st, const char *alert_name) { + char key[RRDCALC_MAX_KEY_SIZE + 1]; + size_t key_len = rrdcalc_key(key, RRDCALC_MAX_KEY_SIZE, rrdset_id(st), alert_name); + + const RRDCALC_ACQUIRED *rca = (const RRDCALC_ACQUIRED *)dictionary_get_and_acquire_item_advanced(st->rrdhost->rrdcalc_root_index, key, (ssize_t)(key_len + 1)); + + if(!rca) { + key_len = rrdcalc_key(key, RRDCALC_MAX_KEY_SIZE, rrdset_name(st), alert_name); + rca = (const RRDCALC_ACQUIRED *)dictionary_get_and_acquire_item_advanced(st->rrdhost->rrdcalc_root_index, key, (ssize_t)(key_len + 1)); + } + + return rca; +} + +void rrdcalc_from_rrdset_release(RRDSET *st, const RRDCALC_ACQUIRED *rca) { + if(!rca) return; + + dictionary_acquired_item_release(st->rrdhost->rrdcalc_root_index, (const DICTIONARY_ITEM *)rca); +} + +RRDCALC *rrdcalc_acquired_to_rrdcalc(const RRDCALC_ACQUIRED *rca) { + if(rca) + return dictionary_acquired_item_value((const DICTIONARY_ITEM *)rca); + + return NULL; +} + +// ---------------------------------------------------------------------------- +// RRDCALC managing the linking with RRDSET + +static void rrdcalc_link_to_rrdset(RRDSET *st, RRDCALC *rc) { RRDHOST *host = st->rrdhost; - debug(D_HEALTH, "Health linking alarm '%s.%s' to chart '%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, st->id, host->hostname); + debug(D_HEALTH, "Health linking alarm '%s.%s' to chart '%s' of host '%s'", rrdcalc_chart_name(rc), rrdcalc_name(rc), rrdset_id(st), rrdhost_hostname(host)); rc->last_status_change = now_realtime_sec(); rc->rrdset = st; - rc->rrdset_next = st->alarms; - rc->rrdset_prev = NULL; - - if(rc->rrdset_next) - rc->rrdset_next->rrdset_prev = rc; - - st->alarms = rc; + netdata_rwlock_wrlock(&st->alerts.rwlock); + DOUBLE_LINKED_LIST_APPEND_UNSAFE(st->alerts.base, rc, prev, next); + netdata_rwlock_unlock(&st->alerts.rwlock); if(rc->update_every < rc->rrdset->update_every) { - error("Health alarm '%s.%s' has update every %d, less than chart update every %d. Setting alarm update frequency to %d.", rc->rrdset->id, rc->name, rc->update_every, rc->rrdset->update_every, rc->rrdset->update_every); + error("Health alarm '%s.%s' has update every %d, less than chart update every %d. Setting alarm update frequency to %d.", rrdset_id(rc->rrdset), rrdcalc_name(rc), rc->update_every, rc->rrdset->update_every, rc->rrdset->update_every); rc->update_every = rc->rrdset->update_every; } if(!isnan(rc->green) && isnan(st->green)) { debug(D_HEALTH, "Health alarm '%s.%s' green threshold set from " NETDATA_DOUBLE_FORMAT_AUTO - " to " NETDATA_DOUBLE_FORMAT_AUTO ".", rc->rrdset->id, rc->name, rc->rrdset->green, rc->green); + " to " NETDATA_DOUBLE_FORMAT_AUTO ".", rrdset_id(rc->rrdset), rrdcalc_name(rc), rc->rrdset->green, rc->green); st->green = rc->green; } if(!isnan(rc->red) && isnan(st->red)) { debug(D_HEALTH, "Health alarm '%s.%s' red threshold set from " NETDATA_DOUBLE_FORMAT_AUTO " to " NETDATA_DOUBLE_FORMAT_AUTO - ".", rc->rrdset->id, rc->name, rc->rrdset->red, rc->red); + ".", rrdset_id(rc->rrdset), rrdcalc_name(rc), rc->rrdset->red, rc->red); st->red = rc->red; } - rc->local = rrdvar_create_and_index("local", &st->rrdvar_root_index, rc->name, RRDVAR_TYPE_CALCULATED, RRDVAR_OPTION_RRDCALC_LOCAL_VAR, &rc->value); - rc->family = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rc->name, RRDVAR_TYPE_CALCULATED, RRDVAR_OPTION_RRDCALC_FAMILY_VAR, &rc->value); - - char fullname[RRDVAR_MAX_LENGTH + 1]; - snprintfz(fullname, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rc->name); - rc->hostid = rrdvar_create_and_index("host", &host->rrdvar_root_index, fullname, RRDVAR_TYPE_CALCULATED, RRDVAR_OPTION_RRDCALC_HOST_CHARTID_VAR, &rc->value); + char buf[RRDVAR_MAX_LENGTH + 1]; + snprintfz(buf, RRDVAR_MAX_LENGTH, "%s.%s", rrdset_name(st), rrdcalc_name(rc)); + STRING *rrdset_name_rrdcalc_name = string_strdupz(buf); + snprintfz(buf, RRDVAR_MAX_LENGTH, "%s.%s", rrdset_id(st), rrdcalc_name(rc)); + STRING *rrdset_id_rrdcalc_name = string_strdupz(buf); - snprintfz(fullname, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rc->name); - rc->hostname = rrdvar_create_and_index("host", &host->rrdvar_root_index, fullname, RRDVAR_TYPE_CALCULATED, RRDVAR_OPTION_RRDCALC_HOST_CHARTNAME_VAR, &rc->value); - - if(rc->hostid && !rc->hostname) - rc->hostid->options |= RRDVAR_OPTION_RRDCALC_HOST_CHARTNAME_VAR; + rc->rrdvar_local = rrdvar_add_and_acquire( + "local", + st->rrdvars, + rc->name, + RRDVAR_TYPE_CALCULATED, + RRDVAR_FLAG_RRDCALC_LOCAL_VAR, + &rc->value); - if(!rc->units) rc->units = strdupz(st->units); + rc->rrdvar_family = rrdvar_add_and_acquire( + "family", + rrdfamily_rrdvars_dict(st->rrdfamily), + rc->name, + RRDVAR_TYPE_CALCULATED, + RRDVAR_FLAG_RRDCALC_FAMILY_VAR, + &rc->value); + + rc->rrdvar_host_chart_name = rrdvar_add_and_acquire( + "host", + host->rrdvars, + rrdset_name_rrdcalc_name, + RRDVAR_TYPE_CALCULATED, + RRDVAR_FLAG_RRDCALC_HOST_CHARTNAME_VAR, + &rc->value); + + rc->rrdvar_host_chart_id = rrdvar_add_and_acquire( + "host", + host->rrdvars, + rrdset_id_rrdcalc_name, + RRDVAR_TYPE_CALCULATED, + RRDVAR_FLAG_RRDCALC_HOST_CHARTID_VAR | ((rc->rrdvar_host_chart_name) ? 0 : RRDVAR_FLAG_RRDCALC_HOST_CHARTNAME_VAR), + &rc->value); + + string_freez(rrdset_id_rrdcalc_name); + string_freez(rrdset_name_rrdcalc_name); + + if(!rc->units) + rc->units = string_dup(st->units); + + rrdcalc_update_info_using_rrdset_labels(rc); time_t now = now_realtime_sec(); + ALARM_ENTRY *ae = health_create_alarm_entry( host, rc->id, @@ -108,216 +271,224 @@ static void rrdsetcalc_link(RRDSET *st, RRDCALC *rc) { rc->units, rc->info, 0, - 0); - health_alarm_log(host, ae); -} - -static int rrdcalc_is_matching_rrdset(RRDCALC *rc, RRDSET *st) { - if((rc->hash_chart != st->hash || strcmp(rc->chart, st->id) != 0) && - (rc->hash_chart != st->hash_name || strcmp(rc->chart, st->name) != 0)) - return 0; - - if (rc->module_pattern && !simple_pattern_matches(rc->module_pattern, st->module_name)) - return 0; - - if (rc->plugin_pattern && !simple_pattern_matches(rc->plugin_pattern, st->plugin_name)) - return 0; + rrdcalc_isrepeating(rc)?HEALTH_ENTRY_FLAG_IS_REPEATING:0); - if (st->rrdhost->host_labels && rc->host_labels_pattern && !rrdlabels_match_simple_pattern_parsed(st->rrdhost->host_labels, rc->host_labels_pattern, '=')) - return 0; - - return 1; -} - -// this has to be called while the RRDHOST is locked -inline void rrdsetcalc_link_matching(RRDSET *st) { - RRDHOST *host = st->rrdhost; - // debug(D_HEALTH, "find matching alarms for chart '%s'", st->id); - - RRDCALC *rc; - for(rc = host->alarms; rc ; rc = rc->next) { - if(unlikely(rc->rrdset)) - continue; - - if(unlikely(rrdcalc_is_matching_rrdset(rc, st))) - rrdsetcalc_link(st, rc); - } + health_alarm_log_add_entry(host, ae); } -// this has to be called while the RRDHOST is locked -inline void rrdsetcalc_unlink(RRDCALC *rc) { +static void rrdcalc_unlink_from_rrdset(RRDCALC *rc, bool having_ll_wrlock) { RRDSET *st = rc->rrdset; if(!st) { - debug(D_HEALTH, "Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rc->chart?rc->chart:"NOCHART", rc->name); - error("Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rc->chart?rc->chart:"NOCHART", rc->name); + debug(D_HEALTH, "Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rrdcalc_chart_name(rc), rrdcalc_name(rc)); + error("Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rrdcalc_chart_name(rc), rrdcalc_name(rc)); return; } RRDHOST *host = st->rrdhost; time_t now = now_realtime_sec(); - ALARM_ENTRY *ae = health_create_alarm_entry( - host, - rc->id, - rc->next_event_id++, - rc->config_hash_id, - now, - rc->name, - rc->rrdset->id, - rc->rrdset->context, - rc->rrdset->family, - rc->classification, - rc->component, - rc->type, - rc->exec, - rc->recipient, - now - rc->last_status_change, - rc->old_value, - rc->value, - rc->status, - RRDCALC_STATUS_REMOVED, - rc->source, - rc->units, - rc->info, - 0, - 0); - health_alarm_log(host, ae); - debug(D_HEALTH, "Health unlinking alarm '%s.%s' from chart '%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, st->id, host->hostname); + if (likely(rc->status != RRDCALC_STATUS_REMOVED)) { + ALARM_ENTRY *ae = health_create_alarm_entry( + host, + rc->id, + rc->next_event_id++, + rc->config_hash_id, + now, + rc->name, + rc->rrdset->id, + rc->rrdset->context, + rc->rrdset->family, + rc->classification, + rc->component, + rc->type, + rc->exec, + rc->recipient, + now - rc->last_status_change, + rc->old_value, + rc->value, + rc->status, + RRDCALC_STATUS_REMOVED, + rc->source, + rc->units, + rc->info, + 0, + 0); + + health_alarm_log_add_entry(host, ae); + } + + debug(D_HEALTH, "Health unlinking alarm '%s.%s' from chart '%s' of host '%s'", rrdcalc_chart_name(rc), rrdcalc_name(rc), rrdset_id(st), rrdhost_hostname(host)); // unlink it - if(rc->rrdset_prev) - rc->rrdset_prev->rrdset_next = rc->rrdset_next; - if(rc->rrdset_next) - rc->rrdset_next->rrdset_prev = rc->rrdset_prev; + if(!having_ll_wrlock) + netdata_rwlock_wrlock(&st->alerts.rwlock); - if(st->alarms == rc) - st->alarms = rc->rrdset_next; + DOUBLE_LINKED_LIST_REMOVE_UNSAFE(st->alerts.base, rc, prev, next); - rc->rrdset_prev = rc->rrdset_next = NULL; + if(!having_ll_wrlock) + netdata_rwlock_unlock(&st->alerts.rwlock); - rrdvar_free(host, &st->rrdvar_root_index, rc->local); - rc->local = NULL; + rc->rrdset = NULL; - rrdvar_free(host, &st->rrdfamily->rrdvar_root_index, rc->family); - rc->family = NULL; + rrdvar_release_and_del(st->rrdvars, rc->rrdvar_local); + rc->rrdvar_local = NULL; - rrdvar_free(host, &host->rrdvar_root_index, rc->hostid); - rc->hostid = NULL; + rrdvar_release_and_del(rrdfamily_rrdvars_dict(st->rrdfamily), rc->rrdvar_family); + rc->rrdvar_family = NULL; - rrdvar_free(host, &host->rrdvar_root_index, rc->hostname); - rc->hostname = NULL; + rrdvar_release_and_del(host->rrdvars, rc->rrdvar_host_chart_id); + rc->rrdvar_host_chart_id = NULL; - rc->rrdset = NULL; + rrdvar_release_and_del(host->rrdvars, rc->rrdvar_host_chart_name); + rc->rrdvar_host_chart_name = NULL; // RRDCALC will remain in RRDHOST // so that if the matching chart is found in the future // it will be applied automatically } -RRDCALC *rrdcalc_find(RRDSET *st, const char *name) { - RRDCALC *rc; - uint32_t hash = simple_hash(name); +static inline bool rrdcalc_check_if_it_matches_rrdset(RRDCALC *rc, RRDSET *st) { + if ( (rc->chart != st->id) + && (rc->chart != st->name)) + return false; - for( rc = st->alarms; rc ; rc = rc->rrdset_next ) { - if(unlikely(rc->hash == hash && !strcmp(rc->name, name))) - return rc; - } + if (rc->module_pattern && !simple_pattern_matches(rc->module_pattern, rrdset_module_name(st))) + return false; - return NULL; + if (rc->plugin_pattern && !simple_pattern_matches(rc->plugin_pattern, rrdset_plugin_name(st))) + return false; + + if (st->rrdhost->rrdlabels && rc->host_labels_pattern && !rrdlabels_match_simple_pattern_parsed(st->rrdhost->rrdlabels, rc->host_labels_pattern, '=')) + return false; + + return true; } -inline int rrdcalc_exists(RRDHOST *host, const char *chart, const char *name, uint32_t hash_chart, uint32_t hash_name) { +void rrdcalc_link_matching_alerts_to_rrdset(RRDSET *st) { + RRDHOST *host = st->rrdhost; + // debug(D_HEALTH, "find matching alarms for chart '%s'", st->id); + RRDCALC *rc; + foreach_rrdcalc_in_rrdhost_read(host, rc) { + if(rc->rrdset) + continue; - if(unlikely(!chart)) { - error("attempt to find RRDCALC '%s' without giving a chart name", name); - return 1; + if(unlikely(rrdcalc_check_if_it_matches_rrdset(rc, st))) + rrdcalc_link_to_rrdset(st, rc); } + foreach_rrdcalc_in_rrdhost_done(rc); +} - if(unlikely(!hash_chart)) hash_chart = simple_hash(chart); - if(unlikely(!hash_name)) hash_name = simple_hash(name); +static inline int rrdcalc_check_and_link_rrdset_callback(RRDSET *st, void *rrdcalc) { + RRDCALC *rc = rrdcalc; - // make sure it does not already exist - for(rc = host->alarms; rc ; rc = rc->next) { - if (unlikely(rc->chart && rc->hash == hash_name && rc->hash_chart == hash_chart && !strcmp(name, rc->name) && !strcmp(chart, rc->chart))) { - debug(D_HEALTH, "Health alarm '%s.%s' already exists in host '%s'.", chart, name, host->hostname); - info("Health alarm '%s.%s' already exists in host '%s'.", chart, name, host->hostname); - return 1; - } + if(unlikely(rrdcalc_check_if_it_matches_rrdset(rc, st))) { + rrdcalc_link_to_rrdset(st, rc); + return -1; } return 0; } -inline uint32_t rrdcalc_get_unique_id(RRDHOST *host, const char *chart, const char *name, uint32_t *next_event_id) { - if(chart && name) { - uint32_t hash_chart = simple_hash(chart); - uint32_t hash_name = simple_hash(name); - - // re-use old IDs, by looking them up in the alarm log - ALARM_ENTRY *ae; - for(ae = host->health_log.alarms; ae ;ae = ae->next) { - if(unlikely(ae->hash_name == hash_name && ae->hash_chart == hash_chart && !strcmp(name, ae->name) && !strcmp(chart, ae->chart))) { - if(next_event_id) *next_event_id = ae->alarm_event_id + 1; - return ae->alarm_id; - } +// ---------------------------------------------------------------------------- +// RRDCALC rrdhost index management - constructor + +struct rrdcalc_constructor { + RRDHOST *rrdhost; // the host we operate upon + RRDCALC *from_config; // points to the original RRDCALC, as loaded from the config + RRDCALCTEMPLATE *from_rrdcalctemplate; // the template this alert is generated from + RRDSET *rrdset; // when this comes from rrdcalctemplate, we have a matching rrdset + const char *overwrite_alert_name; // when we have a dimension foreach, the alert is renamed + const char *overwrite_dimensions; // when we have a dimension foreach, the dimensions filter is renamed + + enum { + RRDCALC_REACT_NONE, + RRDCALC_REACT_NEW, + } react_action; + + bool existing_from_template; +}; + +static void rrdcalc_rrdhost_insert_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdcalc, void *constructor_data) { + RRDCALC *rc = rrdcalc; + struct rrdcalc_constructor *ctr = constructor_data; + RRDHOST *host = ctr->rrdhost; + + rc->key = string_strdupz(dictionary_acquired_item_name(item)); + + if(ctr->from_rrdcalctemplate) { + rc->run_flags |= RRDCALC_FLAG_FROM_TEMPLATE; + + RRDCALCTEMPLATE *rt = ctr->from_rrdcalctemplate; + RRDSET *st = ctr->rrdset; + + rc->next_event_id = 1; + rc->name = (ctr->overwrite_alert_name) ? string_strdupz(ctr->overwrite_alert_name) : string_dup(rt->name); + rc->chart = string_dup(st->id); + uuid_copy(rc->config_hash_id, rt->config_hash_id); + + rc->dimensions = (ctr->overwrite_dimensions) ? string_strdupz(ctr->overwrite_dimensions) : string_dup(rt->dimensions); + rc->foreach_dimension = NULL; + rc->foreach_dimension_pattern = NULL; + + rc->green = rt->green; + rc->red = rt->red; + rc->value = NAN; + rc->old_value = NAN; + + rc->delay_up_duration = rt->delay_up_duration; + rc->delay_down_duration = rt->delay_down_duration; + rc->delay_max_duration = rt->delay_max_duration; + rc->delay_multiplier = rt->delay_multiplier; + + rc->last_repeat = 0; + rc->times_repeat = 0; + rc->warn_repeat_every = rt->warn_repeat_every; + rc->crit_repeat_every = rt->crit_repeat_every; + + rc->group = rt->group; + rc->after = rt->after; + rc->before = rt->before; + rc->update_every = rt->update_every; + rc->options = rt->options; + + rc->exec = string_dup(rt->exec); + rc->recipient = string_dup(rt->recipient); + rc->source = string_dup(rt->source); + rc->units = string_dup(rt->units); + rc->info = string_dup(rt->info); + rc->original_info = string_dup(rt->info); + + rc->classification = string_dup(rt->classification); + rc->component = string_dup(rt->component); + rc->type = string_dup(rt->type); + + if(rt->calculation) { + rc->calculation = expression_parse(rt->calculation->source, NULL, NULL); + if(!rc->calculation) + error("Health alarm '%s.%s': failed to parse calculation expression '%s'", rrdset_id(st), rrdcalctemplate_name(rt), rt->calculation->source); + } + if(rt->warning) { + rc->warning = expression_parse(rt->warning->source, NULL, NULL); + if(!rc->warning) + error("Health alarm '%s.%s': failed to re-parse warning expression '%s'", rrdset_id(st), rrdcalctemplate_name(rt), rt->warning->source); + } + if(rt->critical) { + rc->critical = expression_parse(rt->critical->source, NULL, NULL); + if(!rc->critical) + error("Health alarm '%s.%s': failed to re-parse critical expression '%s'", rrdset_id(st), rrdcalctemplate_name(rt), rt->critical->source); } } - - if (unlikely(!host->health_log.next_alarm_id)) - host->health_log.next_alarm_id = (uint32_t)now_realtime_sec(); - - return host->health_log.next_alarm_id++; -} - -/** - * Alarm name with dimension - * - * Change the name of the current alarm appending a new diagram. - * - * @param name the alarm name - * @param namelen is the length of the previous vector. - * @param dim the dimension of the chart. - * @param dimlen is the length of the previous vector. - * - * @return It returns the new name on success and the old otherwise - */ -char *alarm_name_with_dim(char *name, size_t namelen, const char *dim, size_t dimlen) { - char *newname,*move; - - newname = mallocz(namelen + dimlen + 2); - move = newname; - memcpy(move, name, namelen); - move += namelen; - - *move++ = '_'; - memcpy(move, dim, dimlen); - move += dimlen; - *move = '\0'; - - return newname; -} - -/** - * Remove pipe comma - * - * Remove the pipes and commas converting to space. - * - * @param str the string to change. - */ -void dimension_remove_pipe_comma(char *str) { - while(*str) { - if(*str == '|' || *str == ',') *str = ' '; - - str++; + else if(ctr->from_config) { + // dictionary has already copied all the members values and pointers + // no need for additional work in this case + ; } -} -inline void rrdcalc_add_to_host(RRDHOST *host, RRDCALC *rc) { - rrdhost_check_rdlock(host); + rc->id = rrdcalc_get_unique_id(host, rc->chart, rc->name, &rc->next_event_id); if(rc->calculation) { rc->calculation->status = &rc->status; @@ -343,351 +514,241 @@ inline void rrdcalc_add_to_host(RRDHOST *host, RRDCALC *rc) { rc->critical->rrdcalc = rc; } - if(!rc->foreachdim) { - // link it to the host alarms list - if(likely(host->alarms)) { - // append it - RRDCALC *t; - for(t = host->alarms; t && t->next ; t = t->next) ; - t->next = rc; - } - else { - host->alarms = rc; - } - - // link it to its chart - RRDSET *st; - rrdset_foreach_read(st, host) { - if(rrdcalc_is_matching_rrdset(rc, st)) { - rrdsetcalc_link(st, rc); - break; - } - } - } else { - //link it case there is a foreach - if(likely(host->alarms_with_foreach)) { - // append it - RRDCALC *t; - for(t = host->alarms_with_foreach; t && t->next ; t = t->next) ; - t->next = rc; - } - else { - host->alarms_with_foreach = rc; - } + debug(D_HEALTH, "Health added alarm '%s.%s': exec '%s', recipient '%s', green " NETDATA_DOUBLE_FORMAT_AUTO + ", red " NETDATA_DOUBLE_FORMAT_AUTO + ", lookup: group %d, after %d, before %d, options %u, dimensions '%s', for each dimension '%s', update every %d, calculation '%s', warning '%s', critical '%s', source '%s', delay up %d, delay down %d, delay max %d, delay_multiplier %f, warn_repeat_every %u, crit_repeat_every %u", + rrdcalc_chart_name(rc), + rrdcalc_name(rc), + (rc->exec)?rrdcalc_exec(rc):"DEFAULT", + (rc->recipient)?rrdcalc_recipient(rc):"DEFAULT", + rc->green, + rc->red, + (int)rc->group, + rc->after, + rc->before, + rc->options, + (rc->dimensions)?rrdcalc_dimensions(rc):"NONE", + (rc->foreach_dimension)?rrdcalc_foreachdim(rc):"NONE", + rc->update_every, + (rc->calculation)?rc->calculation->parsed_as:"NONE", + (rc->warning)?rc->warning->parsed_as:"NONE", + (rc->critical)?rc->critical->parsed_as:"NONE", + rrdcalc_source(rc), + rc->delay_up_duration, + rc->delay_down_duration, + rc->delay_max_duration, + rc->delay_multiplier, + rc->warn_repeat_every, + rc->crit_repeat_every + ); - //I am not linking this alarm direct to the host here, this will be done when the children is created - } + ctr->react_action = RRDCALC_REACT_NEW; } -inline RRDCALC *rrdcalc_create_from_template(RRDHOST *host, RRDCALCTEMPLATE *rt, const char *chart) { - debug(D_HEALTH, "Health creating dynamic alarm (from template) '%s.%s'", chart, rt->name); - - if(rrdcalc_exists(host, chart, rt->name, 0, 0)) - return NULL; - - RRDCALC *rc = callocz(1, sizeof(RRDCALC)); - rc->next_event_id = 1; - rc->name = strdupz(rt->name); - rc->hash = simple_hash(rc->name); - rc->chart = strdupz(chart); - rc->hash_chart = simple_hash(rc->chart); - uuid_copy(rc->config_hash_id, rt->config_hash_id); - - rc->id = rrdcalc_get_unique_id(host, rc->chart, rc->name, &rc->next_event_id); - - if(rt->dimensions) rc->dimensions = strdupz(rt->dimensions); - if(rt->foreachdim) { - rc->foreachdim = strdupz(rt->foreachdim); - rc->spdim = health_pattern_from_foreach(rc->foreachdim); - } - rc->foreachcounter = rt->foreachcounter; - - rc->green = rt->green; - rc->red = rt->red; - rc->value = NAN; - rc->old_value = NAN; - - rc->delay_up_duration = rt->delay_up_duration; - rc->delay_down_duration = rt->delay_down_duration; - rc->delay_max_duration = rt->delay_max_duration; - rc->delay_multiplier = rt->delay_multiplier; - - rc->last_repeat = 0; - rc->times_repeat = 0; - rc->warn_repeat_every = rt->warn_repeat_every; - rc->crit_repeat_every = rt->crit_repeat_every; - - rc->group = rt->group; - rc->after = rt->after; - rc->before = rt->before; - rc->update_every = rt->update_every; - rc->options = rt->options; - - if(rt->exec) rc->exec = strdupz(rt->exec); - if(rt->recipient) rc->recipient = strdupz(rt->recipient); - if(rt->source) rc->source = strdupz(rt->source); - if(rt->units) rc->units = strdupz(rt->units); - if(rt->info) rc->info = strdupz(rt->info); - - if (rt->classification) rc->classification = strdupz(rt->classification); - if (rt->component) rc->component = strdupz(rt->component); - if (rt->type) rc->type = strdupz(rt->type); - - if(rt->calculation) { - rc->calculation = expression_parse(rt->calculation->source, NULL, NULL); - if(!rc->calculation) - error("Health alarm '%s.%s': failed to parse calculation expression '%s'", chart, rt->name, rt->calculation->source); - } - if(rt->warning) { - rc->warning = expression_parse(rt->warning->source, NULL, NULL); - if(!rc->warning) - error("Health alarm '%s.%s': failed to re-parse warning expression '%s'", chart, rt->name, rt->warning->source); - } - if(rt->critical) { - rc->critical = expression_parse(rt->critical->source, NULL, NULL); - if(!rc->critical) - error("Health alarm '%s.%s': failed to re-parse critical expression '%s'", chart, rt->name, rt->critical->source); - } +static bool rrdcalc_rrdhost_conflict_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdcalc, void *rrdcalc_new __maybe_unused, void *constructor_data ) { + RRDCALC *rc = rrdcalc; + struct rrdcalc_constructor *ctr = constructor_data; - debug(D_HEALTH, "Health runtime added alarm '%s.%s': exec '%s', recipient '%s', green " NETDATA_DOUBLE_FORMAT_AUTO - ", red " NETDATA_DOUBLE_FORMAT_AUTO - ", lookup: group %d, after %d, before %d, options %u, dimensions '%s', for each dimension '%s', update every %d, calculation '%s', warning '%s', critical '%s', source '%s', delay up %d, delay down %d, delay max %d, delay_multiplier %f, warn_repeat_every %u, crit_repeat_every %u", - (rc->chart)?rc->chart:"NOCHART", - rc->name, - (rc->exec)?rc->exec:"DEFAULT", - (rc->recipient)?rc->recipient:"DEFAULT", - rc->green, - rc->red, - (int)rc->group, - rc->after, - rc->before, - rc->options, - (rc->dimensions)?rc->dimensions:"NONE", - (rc->foreachdim)?rc->foreachdim:"NONE", - rc->update_every, - (rc->calculation)?rc->calculation->parsed_as:"NONE", - (rc->warning)?rc->warning->parsed_as:"NONE", - (rc->critical)?rc->critical->parsed_as:"NONE", - rc->source, - rc->delay_up_duration, - rc->delay_down_duration, - rc->delay_max_duration, - rc->delay_multiplier, - rc->warn_repeat_every, - rc->crit_repeat_every - ); + if(rc->run_flags & RRDCALC_FLAG_FROM_TEMPLATE) + ctr->existing_from_template = true; + else + ctr->existing_from_template = false; - rrdcalc_add_to_host(host, rc); - if(!rt->foreachdim) { - RRDCALC *rdcmp = (RRDCALC *) avl_insert_lock(&(host)->alarms_idx_health_log,(avl_t *)rc); - if (rdcmp != rc) { - error("Cannot insert the alarm index ID %s",rc->name); - } - } + ctr->react_action = RRDCALC_REACT_NONE; - return rc; + return false; } -/** - * Create from RRDCALC - * - * Create a new alarm using another alarm as template. - * - * @param rc is the alarm that will be used as source - * @param host is the host structure. - * @param name is the newest chart name. - * @param dimension is the current dimension - * @param foreachdim the whole list of dimension - * - * @return it returns the new alarm changed. - */ -inline RRDCALC *rrdcalc_create_from_rrdcalc(RRDCALC *rc, RRDHOST *host, const char *name, const char *dimension) { - RRDCALC *newrc = callocz(1, sizeof(RRDCALC)); - - newrc->next_event_id = 1; - newrc->id = rrdcalc_get_unique_id(host, rc->chart, name, &rc->next_event_id); - newrc->name = (char *)name; - newrc->hash = simple_hash(newrc->name); - newrc->chart = strdupz(rc->chart); - newrc->hash_chart = simple_hash(rc->chart); - uuid_copy(newrc->config_hash_id, *((uuid_t *) &rc->config_hash_id)); - - newrc->dimensions = strdupz(dimension); - newrc->foreachdim = NULL; - rc->foreachcounter++; - newrc->foreachcounter = rc->foreachcounter; - - newrc->green = rc->green; - newrc->red = rc->red; - newrc->value = NAN; - newrc->old_value = NAN; - - newrc->delay_up_duration = rc->delay_up_duration; - newrc->delay_down_duration = rc->delay_down_duration; - newrc->delay_max_duration = rc->delay_max_duration; - newrc->delay_multiplier = rc->delay_multiplier; - - newrc->last_repeat = 0; - newrc->times_repeat = 0; - newrc->warn_repeat_every = rc->warn_repeat_every; - newrc->crit_repeat_every = rc->crit_repeat_every; - - newrc->group = rc->group; - newrc->after = rc->after; - newrc->before = rc->before; - newrc->update_every = rc->update_every; - newrc->options = rc->options; - - if(rc->exec) newrc->exec = strdupz(rc->exec); - if(rc->recipient) newrc->recipient = strdupz(rc->recipient); - if(rc->source) newrc->source = strdupz(rc->source); - if(rc->units) newrc->units = strdupz(rc->units); - if(rc->info) newrc->info = strdupz(rc->info); - - if (rc->classification) newrc->classification = strdupz(rc->classification); - if (rc->component) newrc->component = strdupz(rc->component); - if (rc->type) newrc->type = strdupz(rc->type); +static void rrdcalc_rrdhost_react_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdcalc, void *constructor_data) { + RRDCALC *rc = rrdcalc; + struct rrdcalc_constructor *ctr = constructor_data; + RRDHOST *host = ctr->rrdhost; - if(rc->calculation) { - newrc->calculation = expression_parse(rc->calculation->source, NULL, NULL); - if(!newrc->calculation) - error("Health alarm '%s.%s': failed to parse calculation expression '%s'", rc->chart, rc->name, rc->calculation->source); - } + if(ctr->react_action == RRDCALC_REACT_NEW) { + if(ctr->rrdset) + rrdcalc_link_to_rrdset(ctr->rrdset, rc); - if(rc->warning) { - newrc->warning = expression_parse(rc->warning->source, NULL, NULL); - if(!newrc->warning) - error("Health alarm '%s.%s': failed to re-parse warning expression '%s'", rc->chart, rc->name, rc->warning->source); - } - - if(rc->critical) { - newrc->critical = expression_parse(rc->critical->source, NULL, NULL); - if(!newrc->critical) - error("Health alarm '%s.%s': failed to re-parse critical expression '%s'", rc->chart, rc->name, rc->critical->source); + else if (ctr->from_rrdcalctemplate) + rrdcontext_foreach_instance_with_rrdset_in_context(host, string2str(ctr->from_rrdcalctemplate->context), rrdcalc_check_and_link_rrdset_callback, rc); } - - return newrc; } -void rrdcalc_free(RRDCALC *rc) { +// ---------------------------------------------------------------------------- +// RRDCALC rrdhost index management - destructor + +static void rrdcalc_free_internals(RRDCALC *rc) { if(unlikely(!rc)) return; expression_free(rc->calculation); expression_free(rc->warning); expression_free(rc->critical); - freez(rc->name); - freez(rc->chart); - freez(rc->family); - freez(rc->dimensions); - freez(rc->foreachdim); - freez(rc->exec); - freez(rc->recipient); - freez(rc->source); - freez(rc->units); - freez(rc->info); - freez(rc->classification); - freez(rc->component); - freez(rc->type); - simple_pattern_free(rc->spdim); - freez(rc->host_labels); + string_freez(rc->key); + string_freez(rc->name); + string_freez(rc->chart); + string_freez(rc->dimensions); + string_freez(rc->foreach_dimension); + string_freez(rc->exec); + string_freez(rc->recipient); + string_freez(rc->source); + string_freez(rc->units); + string_freez(rc->info); + string_freez(rc->original_info); + string_freez(rc->classification); + string_freez(rc->component); + string_freez(rc->type); + string_freez(rc->host_labels); + string_freez(rc->module_match); + string_freez(rc->plugin_match); + + simple_pattern_free(rc->foreach_dimension_pattern); simple_pattern_free(rc->host_labels_pattern); - freez(rc->module_match); simple_pattern_free(rc->module_pattern); - freez(rc->plugin_match); simple_pattern_free(rc->plugin_pattern); - freez(rc); } -void rrdcalc_unlink_and_free(RRDHOST *host, RRDCALC *rc) { - if(unlikely(!rc)) return; +static void rrdcalc_rrdhost_delete_callback(const DICTIONARY_ITEM *item __maybe_unused, void *rrdcalc, void *rrdhost __maybe_unused) { + RRDCALC *rc = rrdcalc; + //RRDHOST *host = rrdhost; - debug(D_HEALTH, "Health removing alarm '%s.%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname); + if(unlikely(rc->rrdset)) + rrdcalc_unlink_from_rrdset(rc, false); - // unlink it from RRDSET - if(rc->rrdset) rrdsetcalc_unlink(rc); + // any destruction actions that require other locks + // have to be placed in rrdcalc_del(), because the object is actually locked for deletion - // unlink it from RRDHOST - if(unlikely(rc == host->alarms)) - host->alarms = rc->next; - else { - RRDCALC *t; - for(t = host->alarms; t && t->next != rc; t = t->next) ; - if(t) { - t->next = rc->next; - rc->next = NULL; - } - else - error("Cannot unlink alarm '%s.%s' from host '%s': not found", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname); - } + rrdcalc_free_internals(rc); +} - RRDCALC *rdcmp = (RRDCALC *) avl_search_lock(&(host)->alarms_idx_health_log, (avl_t *)rc); - if (rdcmp) { - rdcmp = (RRDCALC *) avl_remove_lock(&(host)->alarms_idx_health_log, (avl_t *)rc); - if (!rdcmp) { - error("Cannot remove the health alarm index from health_log"); - } - } +// ---------------------------------------------------------------------------- +// RRDCALC rrdhost index management - index API - rdcmp = (RRDCALC *) avl_search_lock(&(host)->alarms_idx_name, (avl_t *)rc); - if (rdcmp) { - rdcmp = (RRDCALC *) avl_remove_lock(&(host)->alarms_idx_name, (avl_t *)rc); - if (!rdcmp) { - error("Cannot remove the health alarm index from idx_name"); - } +void rrdcalc_rrdhost_index_init(RRDHOST *host) { + if(!host->rrdcalc_root_index) { + host->rrdcalc_root_index = dictionary_create(DICT_OPTION_DONT_OVERWRITE_VALUE); + + dictionary_register_insert_callback(host->rrdcalc_root_index, rrdcalc_rrdhost_insert_callback, NULL); + dictionary_register_conflict_callback(host->rrdcalc_root_index, rrdcalc_rrdhost_conflict_callback, NULL); + dictionary_register_react_callback(host->rrdcalc_root_index, rrdcalc_rrdhost_react_callback, NULL); + dictionary_register_delete_callback(host->rrdcalc_root_index, rrdcalc_rrdhost_delete_callback, host); } +} - rrdcalc_free(rc); +void rrdcalc_rrdhost_index_destroy(RRDHOST *host) { + dictionary_destroy(host->rrdcalc_root_index); + host->rrdcalc_root_index = NULL; } -void rrdcalc_foreach_unlink_and_free(RRDHOST *host, RRDCALC *rc) { +void rrdcalc_add_from_rrdcalctemplate(RRDHOST *host, RRDCALCTEMPLATE *rt, RRDSET *st, const char *overwrite_alert_name, const char *overwrite_dimensions) { + char key[RRDCALC_MAX_KEY_SIZE + 1]; + size_t key_len = rrdcalc_key(key, RRDCALC_MAX_KEY_SIZE, rrdset_id(st), + overwrite_alert_name?overwrite_alert_name:string2str(rt->name)); + + struct rrdcalc_constructor tmp = { + .rrdhost = host, + .from_config = NULL, + .from_rrdcalctemplate = rt, + .rrdset = st, + .overwrite_alert_name = overwrite_alert_name, + .overwrite_dimensions = overwrite_dimensions, + .react_action = RRDCALC_REACT_NONE, + .existing_from_template = false, + }; + + dictionary_set_advanced(host->rrdcalc_root_index, key, (ssize_t)(key_len + 1), NULL, sizeof(RRDCALC), &tmp); + if(tmp.react_action != RRDCALC_REACT_NEW && tmp.existing_from_template == false) + error("RRDCALC: from template '%s' on chart '%s' with key '%s', failed to be added to host '%s'. It is manually configured.", + string2str(rt->name), rrdset_id(st), key, rrdhost_hostname(host)); +} - if(unlikely(rc == host->alarms_with_foreach)) - host->alarms_with_foreach = rc->next; - else { - RRDCALC *t; - for(t = host->alarms_with_foreach; t && t->next != rc; t = t->next) ; - if(t) { - t->next = rc->next; - rc->next = NULL; +int rrdcalc_add_from_config(RRDHOST *host, RRDCALC *rc) { + if(!rc->chart) { + error("Health configuration for alarm '%s' does not have a chart", rrdcalc_name(rc)); + return 0; + } + + if(!rc->update_every) { + error("Health configuration for alarm '%s.%s' has no frequency (parameter 'every'). Ignoring it.", rrdcalc_chart_name(rc), rrdcalc_name(rc)); + return 0; + } + + if(!RRDCALC_HAS_DB_LOOKUP(rc) && !rc->calculation && !rc->warning && !rc->critical) { + error("Health configuration for alarm '%s.%s' is useless (no db lookup, no calculation, no warning and no critical expressions)", rrdcalc_chart_name(rc), rrdcalc_name(rc)); + return 0; + } + + char key[RRDCALC_MAX_KEY_SIZE + 1]; + size_t key_len = rrdcalc_key(key, RRDCALC_MAX_KEY_SIZE, string2str(rc->chart), string2str(rc->name)); + + struct rrdcalc_constructor tmp = { + .rrdhost = host, + .from_config = rc, + .from_rrdcalctemplate = NULL, + .rrdset = NULL, + .react_action = RRDCALC_REACT_NONE, + }; + + int ret = 1; + RRDCALC *t = dictionary_set_advanced(host->rrdcalc_root_index, key, (ssize_t)(key_len + 1), rc, sizeof(RRDCALC), &tmp); + if(tmp.react_action == RRDCALC_REACT_NEW) { + // we copied rc into the dictionary, so we have to free the container here + freez(rc); + rc = t; + + // since we loaded this config from configuration, we need to check if we can link it to alarms + RRDSET *st; + rrdset_foreach_read(st, host) { + if (unlikely(rrdcalc_check_and_link_rrdset_callback(st, rc) == -1)) + break; } - else - error("Cannot unlink alarm '%s.%s' from host '%s': not found", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname); + rrdset_foreach_done(st); } + else { + error( + "RRDCALC: from config '%s' on chart '%s' failed to be added to host '%s'. It already exists.", + string2str(rc->name), + string2str(rc->chart), + rrdhost_hostname(host)); + + ret = 0; + + // free all of it, internals and the container + rrdcalc_free_unused_rrdcalc_loaded_from_config(rc); + } + + return ret; +} - rrdcalc_free(rc); +static void rrdcalc_unlink_and_delete(RRDHOST *host, RRDCALC *rc, bool having_ll_wrlock) { + if(rc->rrdset) + rrdcalc_unlink_from_rrdset(rc, having_ll_wrlock); + + dictionary_del_advanced(host->rrdcalc_root_index, string2str(rc->key), (ssize_t)string_strlen(rc->key) + 1); } -static void rrdcalc_labels_unlink_alarm_loop(RRDHOST *host, RRDCALC *alarms) { - for(RRDCALC *rc = alarms ; rc ; ) { - RRDCALC *rc_next = rc->next; - if (!rc->host_labels) { - rc = rc_next; +// ---------------------------------------------------------------------------- +// RRDCALC cleanup API functions + +void rrdcalc_delete_alerts_not_matching_host_labels_from_this_host(RRDHOST *host) { + RRDCALC *rc; + foreach_rrdcalc_in_rrdhost_reentrant(host, rc) { + if (!rc->host_labels) continue; - } - if(!rrdlabels_match_simple_pattern_parsed(host->host_labels, rc->host_labels_pattern, '=')) { + if(!rrdlabels_match_simple_pattern_parsed(host->rrdlabels, rc->host_labels_pattern, '=')) { info("Health configuration for alarm '%s' cannot be applied, because the host %s does not have the label(s) '%s'", - rc->name, - host->hostname, - rc->host_labels); + rrdcalc_name(rc), + rrdhost_hostname(host), + rrdcalc_host_labels(rc)); - if(host->alarms == alarms) - rrdcalc_unlink_and_free(host, rc); - else - rrdcalc_foreach_unlink_and_free(host, rc); + rrdcalc_unlink_and_delete(host, rc, false); } - rc = rc_next; } + foreach_rrdcalc_in_rrdhost_done(rc); } -void rrdcalc_labels_unlink_alarm_from_host(RRDHOST *host) { - rrdcalc_labels_unlink_alarm_loop(host, host->alarms); - rrdcalc_labels_unlink_alarm_loop(host, host->alarms_with_foreach); -} - -void rrdcalc_labels_unlink() { +void rrdcalc_delete_alerts_not_matching_host_labels_from_all_hosts() { rrd_rdlock(); RRDHOST *host; @@ -695,70 +756,45 @@ void rrdcalc_labels_unlink() { if (unlikely(!host->health_enabled)) continue; - if (host->host_labels) { - rrdhost_wrlock(host); - - rrdcalc_labels_unlink_alarm_from_host(host); - - rrdhost_unlock(host); - } + if (host->rrdlabels) + rrdcalc_delete_alerts_not_matching_host_labels_from_this_host(host); } rrd_unlock(); } -// ---------------------------------------------------------------------------- -// Alarm - - -/** - * Alarm is repeating - * - * Is this alarm repeating ? - * - * @param host The structure that has the binary tree - * @param alarm_id the id of the alarm to search - * - * @return It returns 1 case it is repeating and 0 otherwise - */ -int alarm_isrepeating(RRDHOST *host, uint32_t alarm_id) { - RRDCALC findme; - findme.id = alarm_id; - RRDCALC *rc = (RRDCALC *)avl_search_lock(&host->alarms_idx_health_log, (avl_t *)&findme); - if (!rc) { - return 0; +void rrdcalc_unlink_all_rrdset_alerts(RRDSET *st) { + RRDCALC *rc, *last = NULL; + netdata_rwlock_wrlock(&st->alerts.rwlock); + while((rc = st->alerts.base)) { + if(last == rc) { + error("RRDCALC: malformed list of alerts linked to chart - cannot cleanup - giving up."); + break; + } + last = rc; + + if(rc->run_flags & RRDCALC_FLAG_FROM_TEMPLATE) { + // if the alert comes from a template we can just delete it + rrdcalc_unlink_and_delete(st->rrdhost, rc, true); + } + else { + // this is a configuration for a specific chart + // it should stay in the list + rrdcalc_unlink_from_rrdset(rc, true); + } + } - return rrdcalc_isrepeating(rc); + netdata_rwlock_unlock(&st->alerts.rwlock); } -/** - * Entry is repeating - * - * Check whether the id of alarm entry is yet present in the host structure - * - * @param host The structure that has the binary tree - * @param ae the alarm entry - * - * @return It returns 1 case it is repeating and 0 otherwise - */ -int alarm_entry_isrepeating(RRDHOST *host, ALARM_ENTRY *ae) { - return alarm_isrepeating(host, ae->alarm_id); +void rrdcalc_delete_all(RRDHOST *host) { + dictionary_flush(host->rrdcalc_root_index); } -/** - * Max last repeat - * - * Check the maximum last_repeat for the alarms associated a host - * - * @param host The structure that has the binary tree - * - * @return It returns 1 case it is repeating and 0 otherwise - */ -RRDCALC *alarm_max_last_repeat(RRDHOST *host, char *alarm_name,uint32_t hash) { - RRDCALC findme; - findme.name = alarm_name; - findme.hash = hash; - RRDCALC *rc = (RRDCALC *)avl_search_lock(&host->alarms_idx_name, (avl_t *)&findme); - - return rc; +void rrdcalc_free_unused_rrdcalc_loaded_from_config(RRDCALC *rc) { + if(rc->rrdset) + rrdcalc_unlink_from_rrdset(rc, false); + + rrdcalc_free_internals(rc); + freez(rc); } |