diff options
Diffstat (limited to 'src/rrdcalc.c')
| -rw-r--r-- | src/rrdcalc.c | 424 |
1 files changed, 0 insertions, 424 deletions
diff --git a/src/rrdcalc.c b/src/rrdcalc.c deleted file mode 100644 index 4e41539e2..000000000 --- a/src/rrdcalc.c +++ /dev/null @@ -1,424 +0,0 @@ -#define NETDATA_HEALTH_INTERNALS -#include "common.h" - -// ---------------------------------------------------------------------------- -// RRDCALC management - -inline const char *rrdcalc_status2string(RRDCALC_STATUS status) { - switch(status) { - case RRDCALC_STATUS_REMOVED: - return "REMOVED"; - - case RRDCALC_STATUS_UNDEFINED: - return "UNDEFINED"; - - case RRDCALC_STATUS_UNINITIALIZED: - return "UNINITIALIZED"; - - case RRDCALC_STATUS_CLEAR: - return "CLEAR"; - - case RRDCALC_STATUS_RAISED: - return "RAISED"; - - case RRDCALC_STATUS_WARNING: - return "WARNING"; - - case RRDCALC_STATUS_CRITICAL: - return "CRITICAL"; - - default: - error("Unknown alarm status %d", status); - return "UNKNOWN"; - } -} - -static void rrdsetcalc_link(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); - - 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; - - 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); - 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 " CALCULATED_NUMBER_FORMAT_AUTO " to " CALCULATED_NUMBER_FORMAT_AUTO ".", rc->rrdset->id, rc->name, 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 " CALCULATED_NUMBER_FORMAT_AUTO " to " CALCULATED_NUMBER_FORMAT_AUTO ".", rc->rrdset->id, rc->name, 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, &rc->value); - rc->family = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rc->name, RRDVAR_TYPE_CALCULATED, &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, &rc->value); - - 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, &rc->value); - - if(!rc->units) rc->units = strdupz(st->units); - - { - time_t now = now_realtime_sec(); - health_alarm_log( - host, - rc->id, - rc->next_event_id++, - now, - rc->name, - rc->rrdset->id, - rc->rrdset->family, - rc->exec, - rc->recipient, - now - rc->last_status_change, - rc->old_value, - rc->value, - rc->status, - RRDCALC_STATUS_UNINITIALIZED, - rc->source, - rc->units, - rc->info, - 0, - 0 - ); - } -} - -static inline int rrdcalc_is_matching_this_rrdset(RRDCALC *rc, RRDSET *st) { - if( (rc->hash_chart == st->hash && !strcmp(rc->chart, st->id)) || - (rc->hash_chart == st->hash_name && !strcmp(rc->chart, st->name))) - return 1; - - return 0; -} - -// 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_this_rrdset(rc, st))) - rrdsetcalc_link(st, rc); - } -} - -// this has to be called while the RRDHOST is locked -inline void rrdsetcalc_unlink(RRDCALC *rc) { - 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); - return; - } - - RRDHOST *host = st->rrdhost; - - { - time_t now = now_realtime_sec(); - health_alarm_log( - host, - rc->id, - rc->next_event_id++, - now, - rc->name, - rc->rrdset->id, - rc->rrdset->family, - 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 - ); - } - - 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); - - // 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(st->alarms == rc) - st->alarms = rc->rrdset_next; - - rc->rrdset_prev = rc->rrdset_next = NULL; - - rrdvar_free(host, &st->rrdvar_root_index, rc->local); - rc->local = NULL; - - rrdvar_free(host, &st->rrdfamily->rrdvar_root_index, rc->family); - rc->family = NULL; - - rrdvar_free(host, &host->rrdvar_root_index, rc->hostid); - rc->hostid = NULL; - - rrdvar_free(host, &host->rrdvar_root_index, rc->hostname); - rc->hostname = NULL; - - rc->rrdset = 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); - - for( rc = st->alarms; rc ; rc = rc->rrdset_next ) { - if(unlikely(rc->hash == hash && !strcmp(rc->name, name))) - return rc; - } - - return NULL; -} - -inline int rrdcalc_exists(RRDHOST *host, const char *chart, const char *name, uint32_t hash_chart, uint32_t hash_name) { - RRDCALC *rc; - - if(unlikely(!chart)) { - error("attempt to find RRDCALC '%s' without giving a chart name", name); - return 1; - } - - if(unlikely(!hash_chart)) hash_chart = simple_hash(chart); - if(unlikely(!hash_name)) hash_name = simple_hash(name); - - // 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; - } - } - - 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; - } - } - } - - return host->health_log.next_alarm_id++; -} - -inline void rrdcalc_create_part2(RRDHOST *host, RRDCALC *rc) { - rrdhost_check_rdlock(host); - - if(rc->calculation) { - rc->calculation->status = &rc->status; - rc->calculation->this = &rc->value; - rc->calculation->after = &rc->db_after; - rc->calculation->before = &rc->db_before; - rc->calculation->rrdcalc = rc; - } - - if(rc->warning) { - rc->warning->status = &rc->status; - rc->warning->this = &rc->value; - rc->warning->after = &rc->db_after; - rc->warning->before = &rc->db_before; - rc->warning->rrdcalc = rc; - } - - if(rc->critical) { - rc->critical->status = &rc->status; - rc->critical->this = &rc->value; - rc->critical->after = &rc->db_after; - rc->critical->before = &rc->db_before; - rc->critical->rrdcalc = rc; - } - - // link it to the host - 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_this_rrdset(rc, st)) { - rrdsetcalc_link(st, rc); - break; - } - } -} - -inline RRDCALC *rrdcalc_create(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->id = rrdcalc_get_unique_id(host, chart, rt->name, &rc->next_event_id); - rc->name = strdupz(rt->name); - rc->hash = simple_hash(rc->name); - rc->chart = strdupz(chart); - rc->hash_chart = simple_hash(rc->chart); - - if(rt->dimensions) rc->dimensions = strdupz(rt->dimensions); - - 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->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->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); - } - - debug(D_HEALTH, "Health runtime added alarm '%s.%s': exec '%s', recipient '%s', green " CALCULATED_NUMBER_FORMAT_AUTO ", red " CALCULATED_NUMBER_FORMAT_AUTO ", lookup: group %d, after %d, before %d, options %u, dimensions '%s', update every %d, calculation '%s', warning '%s', critical '%s', source '%s', delay up %d, delay down %d, delay max %d, delay_multiplier %f", - (rc->chart)?rc->chart:"NOCHART", - rc->name, - (rc->exec)?rc->exec:"DEFAULT", - (rc->recipient)?rc->recipient:"DEFAULT", - rc->green, - rc->red, - rc->group, - rc->after, - rc->before, - rc->options, - (rc->dimensions)?rc->dimensions:"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 - ); - - rrdcalc_create_part2(host, rc); - return rc; -} - -void rrdcalc_free(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->exec); - freez(rc->recipient); - freez(rc->source); - freez(rc->units); - freez(rc->info); - freez(rc); -} - -void rrdcalc_unlink_and_free(RRDHOST *host, RRDCALC *rc) { - if(unlikely(!rc)) return; - - debug(D_HEALTH, "Health removing alarm '%s.%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname); - - // unlink it from RRDSET - if(rc->rrdset) rrdsetcalc_unlink(rc); - - // 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(rc); -} |