diff options
Diffstat (limited to '')
| -rw-r--r--[-rwxr-xr-x] | src/health.c | 3133 |
1 files changed, 368 insertions, 2765 deletions
diff --git a/src/health.c b/src/health.c index 193312eec..46b27db6f 100755..100644 --- a/src/health.c +++ b/src/health.c @@ -1,2588 +1,84 @@ +#define NETDATA_HEALTH_INTERNALS #include "common.h" -#define RRDVAR_MAX_LENGTH 1024 - -struct health_options { - const char *health_default_exec; - const char *health_default_recipient; - const char *log_filename; - size_t log_entries_written; - FILE *log_fp; -}; - -static struct health_options health = { - .health_default_exec = PLUGINS_DIR "/alarm-notify.sh", - .health_default_recipient = "root", - .log_filename = VARLIB_DIR "/health/alarm_log.db", - .log_entries_written = 0, - .log_fp = NULL -}; - -int health_enabled = 1; - -// ---------------------------------------------------------------------------- -// health alarm log load/save -// no need for locking - only one thread is reading / writing the alarms log - -static inline int health_alarm_log_open(void) { - if(health.log_fp) - fclose(health.log_fp); - - health.log_fp = fopen(health.log_filename, "a"); - - if(health.log_fp) { - if (setvbuf(health.log_fp, NULL, _IOLBF, 0) != 0) - error("Health: cannot set line buffering on health log file."); - return 0; - } - - error("Health: cannot open health log file '%s'. Health data will be lost in case of netdata or server crash.", health.log_filename); - return -1; -} - -static inline void health_alarm_log_close(void) { - if(health.log_fp) { - fclose(health.log_fp); - health.log_fp = NULL; - } -} - -static inline void health_log_rotate(void) { - static size_t rotate_every = 0; - - if(unlikely(rotate_every == 0)) { - rotate_every = (size_t)config_get_number("health", "rotate log every lines", 2000); - if(rotate_every < 100) rotate_every = 100; - } - - if(unlikely(health.log_entries_written > rotate_every)) { - health_alarm_log_close(); - - char old_filename[FILENAME_MAX + 1]; - snprintfz(old_filename, FILENAME_MAX, "%s.old", health.log_filename); - - if(unlink(old_filename) == -1 && errno != ENOENT) - error("Health: cannot remove old alarms log file '%s'", old_filename); - - if(link(health.log_filename, old_filename) == -1 && errno != ENOENT) - error("Health: cannot move file '%s' to '%s'.", health.log_filename, old_filename); - - if(unlink(health.log_filename) == -1 && errno != ENOENT) - error("Health: cannot remove old alarms log file '%s'", health.log_filename); - - // open it with truncate - health.log_fp = fopen(health.log_filename, "w"); - - if(health.log_fp) - fclose(health.log_fp); - else - error("Health: cannot truncate health log '%s'", health.log_filename); - - health.log_fp = NULL; - - health.log_entries_written = 0; - health_alarm_log_open(); - } -} - -static inline void health_alarm_log_save(RRDHOST *host, ALARM_ENTRY *ae) { - health_log_rotate(); - - if(likely(health.log_fp)) { - if(unlikely(fprintf(health.log_fp - , "%c\t%s" - "\t%08x\t%08x\t%08x\t%08x\t%08x" - "\t%08x\t%08x\t%08x" - "\t%08x\t%08x\t%08x" - "\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s" - "\t%d\t%d\t%d\t%d" - "\t%Lf\t%Lf" - "\n" - , (ae->flags & HEALTH_ENTRY_FLAG_SAVED)?'U':'A' - , host->hostname - - , ae->unique_id - , ae->alarm_id - , ae->alarm_event_id - , ae->updated_by_id - , ae->updates_id - - , (uint32_t)ae->when - , (uint32_t)ae->duration - , (uint32_t)ae->non_clear_duration - , (uint32_t)ae->flags - , (uint32_t)ae->exec_run_timestamp - , (uint32_t)ae->delay_up_to_timestamp - - , (ae->name)?ae->name:"" - , (ae->chart)?ae->chart:"" - , (ae->family)?ae->family:"" - , (ae->exec)?ae->exec:"" - , (ae->recipient)?ae->recipient:"" - , (ae->source)?ae->source:"" - , (ae->units)?ae->units:"" - , (ae->info)?ae->info:"" - - , ae->exec_code - , ae->new_status - , ae->old_status - , ae->delay - - , (long double)ae->new_value - , (long double)ae->old_value - ) < 0)) - error("Health: failed to save alarm log entry. Health data may be lost in case of abnormal restart."); - else { - ae->flags |= HEALTH_ENTRY_FLAG_SAVED; - health.log_entries_written++; - } - } -} - -static inline ssize_t health_alarm_log_read(RRDHOST *host, FILE *fp, const char *filename) { - static uint32_t max_unique_id = 0, max_alarm_id = 0; - - errno = 0; - - char *s, *buf = mallocz(65536 + 1); - size_t line = 0, len = 0; - ssize_t loaded = 0, updated = 0, errored = 0, duplicate = 0; - - pthread_rwlock_rdlock(&host->health_log.alarm_log_rwlock); - - while((s = fgets_trim_len(buf, 65536, fp, &len))) { - health.log_entries_written++; - line++; - - int max_entries = 30, entries = 0; - char *pointers[max_entries]; - - pointers[entries++] = s++; - while(*s) { - if(unlikely(*s == '\t')) { - *s = '\0'; - pointers[entries++] = ++s; - if(entries >= max_entries) { - error("Health: line %zu of file '%s' has more than %d entries. Ignoring excessive entries.", line, filename, max_entries); - break; - } - } - else s++; - } - - if(likely(*pointers[0] == 'U' || *pointers[0] == 'A')) { - ALARM_ENTRY *ae = NULL; - - if(entries < 26) { - error("Health: line %zu of file '%s' should have at least 26 entries, but it has %d. Ignoring it.", line, filename, entries); - errored++; - continue; - } - - // check that we have valid ids - uint32_t unique_id = (uint32_t)strtoul(pointers[2], NULL, 16); - if(!unique_id) { - error("Health: line %zu of file '%s' states alarm entry with invalid unique id %u (%s). Ignoring it.", line, filename, unique_id, pointers[2]); - errored++; - continue; - } - - uint32_t alarm_id = (uint32_t)strtoul(pointers[3], NULL, 16); - if(!alarm_id) { - error("Health: line %zu of file '%s' states alarm entry for invalid alarm id %u (%s). Ignoring it.", line, filename, alarm_id, pointers[3]); - errored++; - continue; - } - - if(unlikely(*pointers[0] == 'A')) { - // make sure it is properly numbered - if(unlikely(host->health_log.alarms && unique_id < host->health_log.alarms->unique_id)) { - error("Health: line %zu of file '%s' has alarm log entry with %u in wrong order. Ignoring it.", line, filename, unique_id); - errored++; - continue; - } - - ae = callocz(1, sizeof(ALARM_ENTRY)); - } - else if(unlikely(*pointers[0] == 'U')) { - // find the original - for(ae = host->health_log.alarms; ae; ae = ae->next) { - if(unlikely(unique_id == ae->unique_id)) { - if(unlikely(*pointers[0] == 'A')) { - error("Health: line %zu of file '%s' adds duplicate alarm log entry with unique id %u. Using the later." - , line, filename, unique_id); - *pointers[0] = 'U'; - duplicate++; - } - break; - } - else if(unlikely(unique_id > ae->unique_id)) { - // no need to continue - // the linked list is sorted - ae = NULL; - break; - } - } - - // if not found, skip this line - if(!ae) { - // error("Health: line %zu of file '%s' updates alarm log entry with unique id %u, but it is not found.", line, filename, unique_id); - continue; - } - } - - // check for a possible host missmatch - //if(strcmp(pointers[1], host->hostname)) - // error("Health: line %zu of file '%s' provides an alarm for host '%s' but this is named '%s'.", line, filename, pointers[1], host->hostname); - - ae->unique_id = unique_id; - ae->alarm_id = alarm_id; - ae->alarm_event_id = (uint32_t)strtoul(pointers[4], NULL, 16); - ae->updated_by_id = (uint32_t)strtoul(pointers[5], NULL, 16); - ae->updates_id = (uint32_t)strtoul(pointers[6], NULL, 16); - - ae->when = (uint32_t)strtoul(pointers[7], NULL, 16); - ae->duration = (uint32_t)strtoul(pointers[8], NULL, 16); - ae->non_clear_duration = (uint32_t)strtoul(pointers[9], NULL, 16); - - ae->flags = (uint32_t)strtoul(pointers[10], NULL, 16); - ae->flags |= HEALTH_ENTRY_FLAG_SAVED; - - ae->exec_run_timestamp = (uint32_t)strtoul(pointers[11], NULL, 16); - ae->delay_up_to_timestamp = (uint32_t)strtoul(pointers[12], NULL, 16); - - if(unlikely(ae->name)) freez(ae->name); - ae->name = strdupz(pointers[13]); - ae->hash_name = simple_hash(ae->name); - - if(unlikely(ae->chart)) freez(ae->chart); - ae->chart = strdupz(pointers[14]); - ae->hash_chart = simple_hash(ae->chart); - - if(unlikely(ae->family)) freez(ae->family); - ae->family = strdupz(pointers[15]); - - if(unlikely(ae->exec)) freez(ae->exec); - ae->exec = strdupz(pointers[16]); - if(!*ae->exec) { freez(ae->exec); ae->exec = NULL; } - - if(unlikely(ae->recipient)) freez(ae->recipient); - ae->recipient = strdupz(pointers[17]); - if(!*ae->recipient) { freez(ae->recipient); ae->recipient = NULL; } - - if(unlikely(ae->source)) freez(ae->source); - ae->source = strdupz(pointers[18]); - if(!*ae->source) { freez(ae->source); ae->source = NULL; } - - if(unlikely(ae->units)) freez(ae->units); - ae->units = strdupz(pointers[19]); - if(!*ae->units) { freez(ae->units); ae->units = NULL; } - - if(unlikely(ae->info)) freez(ae->info); - ae->info = strdupz(pointers[20]); - if(!*ae->info) { freez(ae->info); ae->info = NULL; } - - ae->exec_code = str2i(pointers[21]); - ae->new_status = str2i(pointers[22]); - ae->old_status = str2i(pointers[23]); - ae->delay = str2i(pointers[24]); - - ae->new_value = str2l(pointers[25]); - ae->old_value = str2l(pointers[26]); - - // add it to host if not already there - if(unlikely(*pointers[0] == 'A')) { - ae->next = host->health_log.alarms; - host->health_log.alarms = ae; - loaded++; - } - else updated++; - - if(unlikely(ae->unique_id > max_unique_id)) - max_unique_id = ae->unique_id; - - if(unlikely(ae->alarm_id >= max_alarm_id)) - max_alarm_id = ae->alarm_id; - } - else { - error("Health: line %zu of file '%s' is invalid (unrecognized entry type '%s').", line, filename, pointers[0]); - errored++; - } - } - - pthread_rwlock_unlock(&host->health_log.alarm_log_rwlock); - - freez(buf); - - if(!max_unique_id) max_unique_id = (uint32_t)now_realtime_sec(); - if(!max_alarm_id) max_alarm_id = (uint32_t)now_realtime_sec(); - - host->health_log.next_log_id = max_unique_id + 1; - host->health_log.next_alarm_id = max_alarm_id + 1; - - debug(D_HEALTH, "Health: loaded file '%s' with %zd new alarm entries, updated %zd alarms, errors %zd entries, duplicate %zd", filename, loaded, updated, errored, duplicate); - return loaded; -} - -static inline void health_alarm_log_load(RRDHOST *host) { - health_alarm_log_close(); - - char filename[FILENAME_MAX + 1]; - snprintfz(filename, FILENAME_MAX, "%s.old", health.log_filename); - FILE *fp = fopen(filename, "r"); - if(!fp) - error("Health: cannot open health file: %s", filename); - else { - health_alarm_log_read(host, fp, filename); - fclose(fp); - } - - health.log_entries_written = 0; - fp = fopen(health.log_filename, "r"); - if(!fp) - error("Health: cannot open health file: %s", health.log_filename); - else { - health_alarm_log_read(host, fp, health.log_filename); - fclose(fp); - } - - health_alarm_log_open(); -} - - -// ---------------------------------------------------------------------------- -// health alarm log management - -static inline void health_alarm_log(RRDHOST *host, - uint32_t alarm_id, uint32_t alarm_event_id, - time_t when, - const char *name, const char *chart, const char *family, - const char *exec, const char *recipient, time_t duration, - calculated_number old_value, calculated_number new_value, - int old_status, int new_status, - const char *source, - const char *units, - const char *info, - int delay -) { - debug(D_HEALTH, "Health adding alarm log entry with id: %u", host->health_log.next_log_id); - - ALARM_ENTRY *ae = callocz(1, sizeof(ALARM_ENTRY)); - ae->name = strdupz(name); - ae->hash_name = simple_hash(ae->name); - - if(chart) { - ae->chart = strdupz(chart); - ae->hash_chart = simple_hash(ae->chart); - } - - if(family) - ae->family = strdupz(family); - - if(exec) ae->exec = strdupz(exec); - if(recipient) ae->recipient = strdupz(recipient); - if(source) ae->source = strdupz(source); - if(units) ae->units = strdupz(units); - if(info) ae->info = strdupz(info); - - ae->unique_id = host->health_log.next_log_id++; - ae->alarm_id = alarm_id; - ae->alarm_event_id = alarm_event_id; - ae->when = when; - ae->old_value = old_value; - ae->new_value = new_value; - ae->old_status = old_status; - ae->new_status = new_status; - ae->duration = duration; - ae->delay = delay; - ae->delay_up_to_timestamp = when + delay; - - if(ae->old_status == RRDCALC_STATUS_WARNING || ae->old_status == RRDCALC_STATUS_CRITICAL) - ae->non_clear_duration += ae->duration; - - // link it - pthread_rwlock_wrlock(&host->health_log.alarm_log_rwlock); - ae->next = host->health_log.alarms; - host->health_log.alarms = ae; - host->health_log.count++; - pthread_rwlock_unlock(&host->health_log.alarm_log_rwlock); - - // match previous alarms - pthread_rwlock_rdlock(&host->health_log.alarm_log_rwlock); - ALARM_ENTRY *t; - for(t = host->health_log.alarms ; t ; t = t->next) { - if(t != ae && t->alarm_id == ae->alarm_id) { - if(!(t->flags & HEALTH_ENTRY_FLAG_UPDATED) && !t->updated_by_id) { - t->flags |= HEALTH_ENTRY_FLAG_UPDATED; - t->updated_by_id = ae->unique_id; - ae->updates_id = t->unique_id; - - if((t->new_status == RRDCALC_STATUS_WARNING || t->new_status == RRDCALC_STATUS_CRITICAL) && - (t->old_status == RRDCALC_STATUS_WARNING || t->old_status == RRDCALC_STATUS_CRITICAL)) - ae->non_clear_duration += t->non_clear_duration; - - health_alarm_log_save(host, t); - } - - // no need to continue - break; - } - } - pthread_rwlock_unlock(&host->health_log.alarm_log_rwlock); - - health_alarm_log_save(host, ae); -} - -// ---------------------------------------------------------------------------- -// RRDVAR management - -static inline int rrdvar_fix_name(char *variable) { - int fixed = 0; - while(*variable) { - if (!isalnum(*variable) && *variable != '.' && *variable != '_') { - *variable++ = '_'; - fixed++; - } - else - variable++; - } - - return fixed; -} - -int rrdvar_compare(void* a, void* b) { - if(((RRDVAR *)a)->hash < ((RRDVAR *)b)->hash) return -1; - else if(((RRDVAR *)a)->hash > ((RRDVAR *)b)->hash) return 1; - else return strcmp(((RRDVAR *)a)->name, ((RRDVAR *)b)->name); -} - -static inline RRDVAR *rrdvar_index_add(avl_tree_lock *tree, RRDVAR *rv) { - RRDVAR *ret = (RRDVAR *)avl_insert_lock(tree, (avl *)(rv)); - if(ret != rv) - debug(D_VARIABLES, "Request to insert RRDVAR '%s' into index failed. Already exists.", rv->name); - - return ret; -} - -static inline RRDVAR *rrdvar_index_del(avl_tree_lock *tree, RRDVAR *rv) { - RRDVAR *ret = (RRDVAR *)avl_remove_lock(tree, (avl *)(rv)); - if(!ret) - error("Request to remove RRDVAR '%s' from index failed. Not Found.", rv->name); - - return ret; -} - -static inline RRDVAR *rrdvar_index_find(avl_tree_lock *tree, const char *name, uint32_t hash) { - RRDVAR tmp; - tmp.name = (char *)name; - tmp.hash = (hash)?hash:simple_hash(tmp.name); - - return (RRDVAR *)avl_search_lock(tree, (avl *)&tmp); -} - -static inline void rrdvar_free(RRDHOST *host, avl_tree_lock *tree, RRDVAR *rv) { - (void)host; - - if(!rv) return; - - if(tree) { - debug(D_VARIABLES, "Deleting variable '%s'", rv->name); - if(unlikely(!rrdvar_index_del(tree, rv))) - error("Attempted to delete variable '%s' from host '%s', but it is not found.", rv->name, host->hostname); - } - - freez(rv->name); - freez(rv); -} - -static inline RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, const char *name, int type, void *value) { - char *variable = strdupz(name); - rrdvar_fix_name(variable); - uint32_t hash = simple_hash(variable); - - RRDVAR *rv = rrdvar_index_find(tree, variable, hash); - if(unlikely(!rv)) { - debug(D_VARIABLES, "Variable '%s' not found in scope '%s'. Creating a new one.", variable, scope); - - rv = callocz(1, sizeof(RRDVAR)); - rv->name = variable; - rv->hash = hash; - rv->type = type; - rv->value = value; - - RRDVAR *ret = rrdvar_index_add(tree, rv); - if(unlikely(ret != rv)) { - debug(D_VARIABLES, "Variable '%s' in scope '%s' already exists", variable, scope); - rrdvar_free(NULL, NULL, rv); - rv = NULL; - } - else - debug(D_VARIABLES, "Variable '%s' created in scope '%s'", variable, scope); - } - else { - debug(D_VARIABLES, "Variable '%s' is already found in scope '%s'.", variable, scope); - - // already exists - freez(variable); - - // this is important - // it must return NULL - not the existing variable - or double-free will happen - rv = NULL; - } - - return rv; -} - -// ---------------------------------------------------------------------------- -// CUSTOM VARIABLES - -RRDVAR *rrdvar_custom_host_variable_create(RRDHOST *host, const char *name) { - calculated_number *v = callocz(1, sizeof(calculated_number)); - *v = NAN; - RRDVAR *rv = rrdvar_create_and_index("host", &host->variables_root_index, name, RRDVAR_TYPE_CALCULATED_ALLOCATED, v); - if(unlikely(!rv)) { - free(v); - error("Requested variable '%s' already exists - possibly 2 plugins will be updating it at the same time", name); - - char *variable = strdupz(name); - rrdvar_fix_name(variable); - uint32_t hash = simple_hash(variable); - - rv = rrdvar_index_find(&host->variables_root_index, variable, hash); - } - - return rv; -} - -void rrdvar_custom_host_variable_destroy(RRDHOST *host, const char *name) { - char *variable = strdupz(name); - rrdvar_fix_name(variable); - uint32_t hash = simple_hash(variable); - - RRDVAR *rv = rrdvar_index_find(&host->variables_root_index, variable, hash); - freez(variable); - - if(!rv) { - error("Attempted to remove variable '%s' from host '%s', but it does not exist.", name, host->hostname); - return; - } - - if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED) { - error("Attempted to remove variable '%s' from host '%s', but it does not a custom allocated variable.", name, host->hostname); - return; - } - - if(!rrdvar_index_del(&host->variables_root_index, rv)) { - error("Attempted to remove variable '%s' from host '%s', but it cannot be found.", name, host->hostname); - return; - } - - freez(rv->name); - freez(rv->value); - freez(rv); -} - -void rrdvar_custom_host_variable_set(RRDVAR *rv, calculated_number value) { - if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED) - error("requested to set variable '%s' to value " CALCULATED_NUMBER_FORMAT " but the variable is not a custom one.", rv->name, value); - else { - calculated_number *v = rv->value; - *v = value; - } -} - -// ---------------------------------------------------------------------------- -// RRDVAR lookup - -static calculated_number rrdvar2number(RRDVAR *rv) { - switch(rv->type) { - case RRDVAR_TYPE_CALCULATED_ALLOCATED: - case RRDVAR_TYPE_CALCULATED: { - calculated_number *n = (calculated_number *)rv->value; - return *n; - } - - case RRDVAR_TYPE_TIME_T: { - time_t *n = (time_t *)rv->value; - return *n; - } - - case RRDVAR_TYPE_COLLECTED: { - collected_number *n = (collected_number *)rv->value; - return *n; - } - - case RRDVAR_TYPE_TOTAL: { - total_number *n = (total_number *)rv->value; - return *n; - } - - case RRDVAR_TYPE_INT: { - int *n = (int *)rv->value; - return *n; - } - - default: - error("I don't know how to convert RRDVAR type %d to calculated_number", rv->type); - return NAN; - } -} - -int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, calculated_number *result) { - RRDSET *st = rc->rrdset; - RRDVAR *rv; - - if(!st) return 0; - - rv = rrdvar_index_find(&st->variables_root_index, variable, hash); - if(rv) { - *result = rrdvar2number(rv); - return 1; - } - - rv = rrdvar_index_find(&st->rrdfamily->variables_root_index, variable, hash); - if(rv) { - *result = rrdvar2number(rv); - return 1; - } - - rv = rrdvar_index_find(&st->rrdhost->variables_root_index, variable, hash); - if(rv) { - *result = rrdvar2number(rv); - return 1; - } - - return 0; -} - -// ---------------------------------------------------------------------------- -// RRDVAR to JSON - -struct variable2json_helper { - BUFFER *buf; - size_t counter; -}; - -static int single_variable2json(void *entry, void *data) { - struct variable2json_helper *helper = (struct variable2json_helper *)data; - RRDVAR *rv = (RRDVAR *)entry; - calculated_number value = rrdvar2number(rv); - - if(unlikely(isnan(value) || isinf(value))) - buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": null", helper->counter?",":"", rv->name); - else - buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": %0.5Lf", helper->counter?",":"", rv->name, (long double)value); - - helper->counter++; - - return 0; -} - -void health_api_v1_chart_variables2json(RRDSET *st, BUFFER *buf) { - struct variable2json_helper helper = { - .buf = buf, - .counter = 0 - }; - - buffer_sprintf(buf, "{\n\t\"chart\": \"%s\",\n\t\"chart_name\": \"%s\",\n\t\"chart_context\": \"%s\",\n\t\"chart_variables\": {", st->id, st->name, st->context); - avl_traverse_lock(&st->variables_root_index, single_variable2json, (void *)&helper); - buffer_sprintf(buf, "\n\t},\n\t\"family\": \"%s\",\n\t\"family_variables\": {", st->family); - helper.counter = 0; - avl_traverse_lock(&st->rrdfamily->variables_root_index, single_variable2json, (void *)&helper); - buffer_sprintf(buf, "\n\t},\n\t\"host\": \"%s\",\n\t\"host_variables\": {", st->rrdhost->hostname); - helper.counter = 0; - avl_traverse_lock(&st->rrdhost->variables_root_index, single_variable2json, (void *)&helper); - buffer_strcat(buf, "\n\t}\n}\n"); -} - - -// ---------------------------------------------------------------------------- -// RRDDIMVAR management -// DIMENSION VARIABLES - -#define RRDDIMVAR_ID_MAX 1024 - -static inline void rrddimvar_free_variables(RRDDIMVAR *rs) { - RRDDIM *rd = rs->rrddim; - RRDSET *st = rd->rrdset; - - // CHART VARIABLES FOR THIS DIMENSION - - rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local_id); - rs->var_local_id = NULL; - - rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local_name); - rs->var_local_name = NULL; - - // FAMILY VARIABLES FOR THIS DIMENSION - - rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_id); - rs->var_family_id = NULL; - - rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_name); - rs->var_family_name = NULL; - - rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_contextid); - rs->var_family_contextid = NULL; - - rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_contextname); - rs->var_family_contextname = NULL; - - // HOST VARIABLES FOR THIS DIMENSION - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartidid); - rs->var_host_chartidid = NULL; - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartidname); - rs->var_host_chartidname = NULL; - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartnameid); - rs->var_host_chartnameid = NULL; - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartnamename); - rs->var_host_chartnamename = NULL; - - // KEYS - - freez(rs->key_id); - rs->key_id = NULL; - - freez(rs->key_name); - rs->key_name = NULL; - - freez(rs->key_fullidid); - rs->key_fullidid = NULL; - - freez(rs->key_fullidname); - rs->key_fullidname = NULL; - - freez(rs->key_contextid); - rs->key_contextid = NULL; - - freez(rs->key_contextname); - rs->key_contextname = NULL; - - freez(rs->key_fullnameid); - rs->key_fullnameid = NULL; - - freez(rs->key_fullnamename); - rs->key_fullnamename = NULL; -} - -static inline void rrddimvar_create_variables(RRDDIMVAR *rs) { - rrddimvar_free_variables(rs); - - RRDDIM *rd = rs->rrddim; - RRDSET *st = rd->rrdset; - - char buffer[RRDDIMVAR_ID_MAX + 1]; - - // KEYS - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s%s%s", rs->prefix, rd->id, rs->suffix); - rs->key_id = strdupz(buffer); - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s%s%s", rs->prefix, rd->name, rs->suffix); - rs->key_name = strdupz(buffer); - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->id, rs->key_id); - rs->key_fullidid = strdupz(buffer); - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->id, rs->key_name); - rs->key_fullidname = strdupz(buffer); - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->context, rs->key_id); - rs->key_contextid = strdupz(buffer); - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->context, rs->key_name); - rs->key_contextname = strdupz(buffer); - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->name, rs->key_id); - rs->key_fullnameid = strdupz(buffer); - - snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->name, rs->key_name); - rs->key_fullnamename = strdupz(buffer); - - // CHART VARIABLES FOR THIS DIMENSION - // ----------------------------------- - // - // dimensions are available as: - // - $id - // - $name - - rs->var_local_id = rrdvar_create_and_index("local", &st->variables_root_index, rs->key_id, rs->type, rs->value); - rs->var_local_name = rrdvar_create_and_index("local", &st->variables_root_index, rs->key_name, rs->type, rs->value); - - // FAMILY VARIABLES FOR THIS DIMENSION - // ----------------------------------- - // - // dimensions are available as: - // - $id (only the first, when multiple overlap) - // - $name (only the first, when multiple overlap) - // - $chart-context.id - // - $chart-context.name - - rs->var_family_id = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_id, rs->type, rs->value); - rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_name, rs->type, rs->value); - rs->var_family_contextid = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_contextid, rs->type, rs->value); - rs->var_family_contextname = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_contextname, rs->type, rs->value); - - // HOST VARIABLES FOR THIS DIMENSION - // ----------------------------------- - // - // dimensions are available as: - // - $chart-id.id - // - $chart-id.name - // - $chart-name.id - // - $chart-name.name - - rs->var_host_chartidid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullidid, rs->type, rs->value); - rs->var_host_chartidname = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullidname, rs->type, rs->value); - rs->var_host_chartnameid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullnameid, rs->type, rs->value); - rs->var_host_chartnamename = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullnamename, rs->type, rs->value); -} - -RRDDIMVAR *rrddimvar_create(RRDDIM *rd, int type, const char *prefix, const char *suffix, void *value, uint32_t options) { - RRDSET *st = rd->rrdset; - - debug(D_VARIABLES, "RRDDIMSET create for chart id '%s' name '%s', dimension id '%s', name '%s%s%s'", st->id, st->name, rd->id, (prefix)?prefix:"", rd->name, (suffix)?suffix:""); - - if(!prefix) prefix = ""; - if(!suffix) suffix = ""; - - RRDDIMVAR *rs = (RRDDIMVAR *)callocz(1, sizeof(RRDDIMVAR)); - - rs->prefix = strdupz(prefix); - rs->suffix = strdupz(suffix); - - rs->type = type; - rs->value = value; - rs->options = options; - rs->rrddim = rd; - - rs->next = rd->variables; - rd->variables = rs; - - rrddimvar_create_variables(rs); - - return rs; -} - -void rrddimvar_rename_all(RRDDIM *rd) { - RRDSET *st = rd->rrdset; - debug(D_VARIABLES, "RRDDIMSET rename for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name); - - RRDDIMVAR *rs, *next = rd->variables; - while((rs = next)) { - next = rs->next; - rrddimvar_create_variables(rs); - } -} - -void rrddimvar_free(RRDDIMVAR *rs) { - RRDDIM *rd = rs->rrddim; - RRDSET *st = rd->rrdset; - debug(D_VARIABLES, "RRDDIMSET free for chart id '%s' name '%s', dimension id '%s', name '%s', prefix='%s', suffix='%s'", st->id, st->name, rd->id, rd->name, rs->prefix, rs->suffix); - - rrddimvar_free_variables(rs); - - if(rd->variables == rs) { - debug(D_VARIABLES, "RRDDIMSET removing first entry for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name); - rd->variables = rs->next; - } - else { - debug(D_VARIABLES, "RRDDIMSET removing non-first entry for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name); - RRDDIMVAR *t; - for (t = rd->variables; t && t->next != rs; t = t->next) ; - if(!t) error("RRDDIMVAR '%s' not found in dimension '%s/%s' variables linked list", rs->key_name, st->id, rd->id); - else t->next = rs->next; - } - - freez(rs->prefix); - freez(rs->suffix); - freez(rs); -} - -// ---------------------------------------------------------------------------- -// RRDSETVAR management -// CHART VARIABLES - -static inline void rrdsetvar_free_variables(RRDSETVAR *rs) { - RRDSET *st = rs->rrdset; - - // CHART - - rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local); - rs->var_local = NULL; - - // FAMILY - - rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family); - rs->var_family = NULL; - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host); - rs->var_host = NULL; - - // HOST - - rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_name); - rs->var_family_name = NULL; - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_name); - rs->var_host_name = NULL; - - // KEYS - - freez(rs->key_fullid); - rs->key_fullid = NULL; - - freez(rs->key_fullname); - rs->key_fullname = NULL; -} - -static inline void rrdsetvar_create_variables(RRDSETVAR *rs) { - rrdsetvar_free_variables(rs); - - RRDSET *st = rs->rrdset; - - // KEYS - - char buffer[RRDVAR_MAX_LENGTH + 1]; - snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rs->variable); - rs->key_fullid = strdupz(buffer); - - snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rs->variable); - rs->key_fullname = strdupz(buffer); - - // CHART - - rs->var_local = rrdvar_create_and_index("local", &st->variables_root_index, rs->variable, rs->type, rs->value); - - // FAMILY - - rs->var_family = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullid, rs->type, rs->value); - rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullname, rs->type, rs->value); - - // HOST - - rs->var_host = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullid, rs->type, rs->value); - rs->var_host_name = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullname, rs->type, rs->value); - -} - -RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *value, uint32_t options) { - debug(D_VARIABLES, "RRDVARSET create for chart id '%s' name '%s' with variable name '%s'", st->id, st->name, variable); - RRDSETVAR *rs = (RRDSETVAR *)callocz(1, sizeof(RRDSETVAR)); - - rs->variable = strdupz(variable); - rs->type = type; - rs->value = value; - rs->options = options; - rs->rrdset = st; - - rs->next = st->variables; - st->variables = rs; - - rrdsetvar_create_variables(rs); - - return rs; -} - -void rrdsetvar_rename_all(RRDSET *st) { - debug(D_VARIABLES, "RRDSETVAR rename for chart id '%s' name '%s'", st->id, st->name); - - RRDSETVAR *rs, *next = st->variables; - while((rs = next)) { - next = rs->next; - rrdsetvar_create_variables(rs); - } - - rrdsetcalc_link_matching(st); -} - -void rrdsetvar_free(RRDSETVAR *rs) { - RRDSET *st = rs->rrdset; - debug(D_VARIABLES, "RRDSETVAR free for chart id '%s' name '%s', variable '%s'", st->id, st->name, rs->variable); - - if(st->variables == rs) { - st->variables = rs->next; - } - else { - RRDSETVAR *t; - for (t = st->variables; t && t->next != rs; t = t->next); - if(!t) error("RRDSETVAR '%s' not found in chart '%s' variables linked list", rs->key_fullname, st->id); - else t->next = rs->next; - } - - rrdsetvar_free_variables(rs); - - freez(rs->variable); - freez(rs); -} - -// ---------------------------------------------------------------------------- -// RRDCALC management - -inline const char *rrdcalc_status2string(int 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) { - debug(D_HEALTH, "Health linking alarm '%s.%s' to chart '%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, st->id, st->rrdhost->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 %Lf to %Lf.", 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 %Lf to %Lf.", rc->rrdset->id, rc->name, rc->rrdset->red, rc->red); - st->red = rc->red; - } - - rc->local = rrdvar_create_and_index("local", &st->variables_root_index, rc->name, RRDVAR_TYPE_CALCULATED, &rc->value); - rc->family = rrdvar_create_and_index("family", &st->rrdfamily->variables_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", &st->rrdhost->variables_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", &st->rrdhost->variables_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(st->rrdhost, 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); - } -} - -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) { - // debug(D_HEALTH, "find matching alarms for chart '%s'", st->id); - - RRDCALC *rc; - for(rc = st->rrdhost->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; - } - - { - time_t now = now_realtime_sec(); - health_alarm_log(st->rrdhost, 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); - } - - RRDHOST *host = st->rrdhost; - - 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(st->rrdhost, &st->variables_root_index, rc->local); - rc->local = NULL; - - rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rc->family); - rc->family = NULL; - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rc->hostid); - rc->hostid = NULL; - - rrdvar_free(st->rrdhost, &st->rrdhost->variables_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; -} - -static 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); - error("Health alarm '%s.%s' already exists in host '%s'.", chart, name, host->hostname); - return 1; - } - } - - return 0; -} - -static 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++; -} - -static 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; - for(st = host->rrdset_root; st ; st = st->next) { - if(rrdcalc_is_matching_this_rrdset(rc, st)) { - rrdsetcalc_link(st, rc); - break; - } - } -} - -static 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 %Lf, red %Lf, 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(RRDHOST *host, RRDCALC *rc) { - if(!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 if(likely(host->alarms)) { - RRDCALC *t, *last = host->alarms; - for(t = last->next; t && t != rc; last = t, t = t->next) ; - if(last->next == rc) - last->next = rc->next; - else - error("Cannot unlink alarm '%s.%s' from host '%s': not found", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname); - } - else - error("Cannot unlink unlink '%s.%s' from host '%s': This host does not have any calculations", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname); - - 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); -} +int default_health_enabled = 1; // ---------------------------------------------------------------------------- -// RRDCALCTEMPLATE management - -void rrdcalctemplate_link_matching(RRDSET *st) { - RRDCALCTEMPLATE *rt; - - for(rt = st->rrdhost->templates; rt ; rt = rt->next) { - if(rt->hash_context == st->hash_context && !strcmp(rt->context, st->context) - && (!rt->family_pattern || simple_pattern_matches(rt->family_pattern, st->family))) { - RRDCALC *rc = rrdcalc_create(st->rrdhost, rt, st->id); - if(unlikely(!rc)) - error("Health tried to create alarm from template '%s', but it failed", rt->name); - -#ifdef NETDATA_INTERNAL_CHECKS - else if(rc->rrdset != st) - error("Health alarm '%s.%s' should be linked to chart '%s', but it is not", rc->chart?rc->chart:"NOCHART", rc->name, st->id); -#endif - } - } -} - -static inline void rrdcalctemplate_free(RRDHOST *host, RRDCALCTEMPLATE *rt) { - debug(D_HEALTH, "Health removing template '%s' of host '%s'", rt->name, host->hostname); - - if(host->templates) { - if(host->templates == rt) { - host->templates = rt->next; - } - else { - RRDCALCTEMPLATE *t, *last = host->templates; - for (t = last->next; t && t != rt; last = t, t = t->next ) ; - if(last && last->next == rt) { - last->next = rt->next; - rt->next = NULL; - } - else - error("Cannot find RRDCALCTEMPLATE '%s' linked in host '%s'", rt->name, host->hostname); - } - } - - expression_free(rt->calculation); - expression_free(rt->warning); - expression_free(rt->critical); - - freez(rt->family_match); - simple_pattern_free(rt->family_pattern); - - freez(rt->name); - freez(rt->exec); - freez(rt->recipient); - freez(rt->context); - freez(rt->source); - freez(rt->units); - freez(rt->info); - freez(rt->dimensions); - freez(rt); -} - -// ---------------------------------------------------------------------------- -// load health configuration - -#define HEALTH_CONF_MAX_LINE 4096 - -#define HEALTH_ALARM_KEY "alarm" -#define HEALTH_TEMPLATE_KEY "template" -#define HEALTH_ON_KEY "on" -#define HEALTH_FAMILIES_KEY "families" -#define HEALTH_LOOKUP_KEY "lookup" -#define HEALTH_CALC_KEY "calc" -#define HEALTH_EVERY_KEY "every" -#define HEALTH_GREEN_KEY "green" -#define HEALTH_RED_KEY "red" -#define HEALTH_WARN_KEY "warn" -#define HEALTH_CRIT_KEY "crit" -#define HEALTH_EXEC_KEY "exec" -#define HEALTH_RECIPIENT_KEY "to" -#define HEALTH_UNITS_KEY "units" -#define HEALTH_INFO_KEY "info" -#define HEALTH_DELAY_KEY "delay" - -static inline int rrdcalc_add_alarm_from_config(RRDHOST *host, RRDCALC *rc) { - if(!rc->chart) { - error("Health configuration for alarm '%s' does not have a chart", rc->name); - return 0; - } +// health initialization - if(!rc->update_every) { - error("Health configuration for alarm '%s.%s' has no frequency (parameter 'every'). Ignoring it.", rc->chart?rc->chart:"NOCHART", rc->name); - return 0; - } - - if(!RRDCALC_HAS_DB_LOOKUP(rc) && !rc->warning && !rc->critical) { - error("Health configuration for alarm '%s.%s' is useless (no calculation, no warning and no critical evaluation)", rc->chart?rc->chart:"NOCHART", rc->name); - return 0; - } - - if (rrdcalc_exists(host, rc->chart, rc->name, rc->hash_chart, rc->hash)) - return 0; - - rc->id = rrdcalc_get_unique_id(&localhost, rc->chart, rc->name, &rc->next_event_id); - - debug(D_HEALTH, "Health configuration adding alarm '%s.%s' (%u): exec '%s', recipient '%s', green %Lf, red %Lf, 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->id, - (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 1; -} - -static inline int rrdcalctemplate_add_template_from_config(RRDHOST *host, RRDCALCTEMPLATE *rt) { - if(unlikely(!rt->context)) { - error("Health configuration for template '%s' does not have a context", rt->name); - return 0; - } - - if(unlikely(!rt->update_every)) { - error("Health configuration for template '%s' has no frequency (parameter 'every'). Ignoring it.", rt->name); - return 0; - } - - if(unlikely(!RRDCALCTEMPLATE_HAS_CALCULATION(rt) && !rt->warning && !rt->critical)) { - error("Health configuration for template '%s' is useless (no calculation, no warning and no critical evaluation)", rt->name); - return 0; - } - - RRDCALCTEMPLATE *t, *last = NULL; - for (t = host->templates; t ; last = t, t = t->next) { - if(unlikely(t->hash_name == rt->hash_name && !strcmp(t->name, rt->name))) { - error("Health configuration template '%s' already exists for host '%s'.", rt->name, host->hostname); - return 0; - } - } - - debug(D_HEALTH, "Health configuration adding template '%s': context '%s', exec '%s', recipient '%s', green %Lf, red %Lf, 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", - rt->name, - (rt->context)?rt->context:"NONE", - (rt->exec)?rt->exec:"DEFAULT", - (rt->recipient)?rt->recipient:"DEFAULT", - rt->green, - rt->red, - rt->group, - rt->after, - rt->before, - rt->options, - (rt->dimensions)?rt->dimensions:"NONE", - rt->update_every, - (rt->calculation)?rt->calculation->parsed_as:"NONE", - (rt->warning)?rt->warning->parsed_as:"NONE", - (rt->critical)?rt->critical->parsed_as:"NONE", - rt->source, - rt->delay_up_duration, - rt->delay_down_duration, - rt->delay_max_duration, - rt->delay_multiplier - ); - - if(likely(last)) { - last->next = rt; - } - else { - rt->next = host->templates; - host->templates = rt; - } - - return 1; -} - -static inline int health_parse_duration(char *string, int *result) { - // make sure it is a number - if(!*string || !(isdigit(*string) || *string == '+' || *string == '-')) { - *result = 0; - return 0; - } - - char *e = NULL; - calculated_number n = strtold(string, &e); - if(e && *e) { - switch (*e) { - case 'Y': - *result = (int) (n * 86400 * 365); - break; - case 'M': - *result = (int) (n * 86400 * 30); - break; - case 'w': - *result = (int) (n * 86400 * 7); - break; - case 'd': - *result = (int) (n * 86400); - break; - case 'h': - *result = (int) (n * 3600); - break; - case 'm': - *result = (int) (n * 60); - break; - - default: - case 's': - *result = (int) (n); - break; - } - } - else - *result = (int)(n); - - return 1; -} - -static inline int health_parse_delay( - size_t line, const char *path, const char *file, char *string, - int *delay_up_duration, - int *delay_down_duration, - int *delay_max_duration, - float *delay_multiplier) { - - char given_up = 0; - char given_down = 0; - char given_max = 0; - char given_multiplier = 0; - - char *s = string; - while(*s) { - char *key = s; - - while(*s && !isspace(*s)) s++; - while(*s && isspace(*s)) *s++ = '\0'; - - if(!*key) break; - - char *value = s; - while(*s && !isspace(*s)) s++; - while(*s && isspace(*s)) *s++ = '\0'; - - if(!strcasecmp(key, "up")) { - if (!health_parse_duration(value, delay_up_duration)) { - error("Health configuration at line %zu of file '%s/%s': invalid value '%s' for '%s' keyword", - line, path, file, value, key); - } - else given_up = 1; - } - else if(!strcasecmp(key, "down")) { - if (!health_parse_duration(value, delay_down_duration)) { - error("Health configuration at line %zu of file '%s/%s': invalid value '%s' for '%s' keyword", - line, path, file, value, key); - } - else given_down = 1; - } - else if(!strcasecmp(key, "multiplier")) { - *delay_multiplier = strtof(value, NULL); - if(isnan(*delay_multiplier) || isinf(*delay_multiplier) || islessequal(*delay_multiplier, 0)) { - error("Health configuration at line %zu of file '%s/%s': invalid value '%s' for '%s' keyword", - line, path, file, value, key); - } - else given_multiplier = 1; - } - else if(!strcasecmp(key, "max")) { - if (!health_parse_duration(value, delay_max_duration)) { - error("Health configuration at line %zu of file '%s/%s': invalid value '%s' for '%s' keyword", - line, path, file, value, key); - } - else given_max = 1; - } - else { - error("Health configuration at line %zu of file '%s/%s': unknown keyword '%s'", - line, path, file, key); - } - } - - if(!given_up) - *delay_up_duration = 0; - - if(!given_down) - *delay_down_duration = 0; - - if(!given_multiplier) - *delay_multiplier = 1.0; - - if(!given_max) { - if((*delay_max_duration) < (*delay_up_duration) * (*delay_multiplier)) - *delay_max_duration = (*delay_up_duration) * (*delay_multiplier); - - if((*delay_max_duration) < (*delay_down_duration) * (*delay_multiplier)) - *delay_max_duration = (*delay_down_duration) * (*delay_multiplier); - } - - return 1; -} - -static inline int health_parse_db_lookup( - size_t line, const char *path, const char *file, char *string, - int *group_method, int *after, int *before, int *every, - uint32_t *options, char **dimensions -) { - debug(D_HEALTH, "Health configuration parsing database lookup %zu@%s/%s: %s", line, path, file, string); - - if(*dimensions) freez(*dimensions); - *dimensions = NULL; - *after = 0; - *before = 0; - *every = 0; - *options = 0; - - char *s = string, *key; - - // first is the group method - key = s; - while(*s && !isspace(*s)) s++; - while(*s && isspace(*s)) *s++ = '\0'; - if(!*s) { - error("Health configuration invalid chart calculation at line %zu of file '%s/%s': expected group method followed by the 'after' time, but got '%s'", - line, path, file, key); - return 0; - } - - if((*group_method = web_client_api_request_v1_data_group(key, -1)) == -1) { - error("Health configuration at line %zu of file '%s/%s': invalid group method '%s'", - line, path, file, key); - return 0; - } - - // then is the 'after' time - key = s; - while(*s && !isspace(*s)) s++; - while(*s && isspace(*s)) *s++ = '\0'; - - if(!health_parse_duration(key, after)) { - error("Health configuration at line %zu of file '%s/%s': invalid duration '%s' after group method", - line, path, file, key); - return 0; - } - - // sane defaults - *every = abs(*after); - - // now we may have optional parameters - while(*s) { - key = s; - while(*s && !isspace(*s)) s++; - while(*s && isspace(*s)) *s++ = '\0'; - if(!*key) break; - - if(!strcasecmp(key, "at")) { - char *value = s; - while(*s && !isspace(*s)) s++; - while(*s && isspace(*s)) *s++ = '\0'; - - if (!health_parse_duration(value, before)) { - error("Health configuration at line %zu of file '%s/%s': invalid duration '%s' for '%s' keyword", - line, path, file, value, key); - } - } - else if(!strcasecmp(key, HEALTH_EVERY_KEY)) { - char *value = s; - while(*s && !isspace(*s)) s++; - while(*s && isspace(*s)) *s++ = '\0'; - - if (!health_parse_duration(value, every)) { - error("Health configuration at line %zu of file '%s/%s': invalid duration '%s' for '%s' keyword", - line, path, file, value, key); - } - } - else if(!strcasecmp(key, "absolute") || !strcasecmp(key, "abs") || !strcasecmp(key, "absolute_sum")) { - *options |= RRDR_OPTION_ABSOLUTE; - } - else if(!strcasecmp(key, "min2max")) { - *options |= RRDR_OPTION_MIN2MAX; - } - else if(!strcasecmp(key, "null2zero")) { - *options |= RRDR_OPTION_NULL2ZERO; - } - else if(!strcasecmp(key, "percentage")) { - *options |= RRDR_OPTION_PERCENTAGE; - } - else if(!strcasecmp(key, "unaligned")) { - *options |= RRDR_OPTION_NOT_ALIGNED; - } - else if(!strcasecmp(key, "of")) { - if(*s && strcasecmp(s, "all")) - *dimensions = strdupz(s); - break; - } - else { - error("Health configuration at line %zu of file '%s/%s': unknown keyword '%s'", - line, path, file, key); - } - } - - return 1; -} - -static inline char *tabs2spaces(char *s) { - char *t = s; - while(*t) { - if(unlikely(*t == '\t')) *t = ' '; - t++; - } - - return s; -} - -static inline char *health_source_file(size_t line, const char *path, const char *filename) { +inline char *health_config_dir(void) { char buffer[FILENAME_MAX + 1]; - snprintfz(buffer, FILENAME_MAX, "%zu@%s/%s", line, path, filename); - return strdupz(buffer); -} - -static inline void strip_quotes(char *s) { - while(*s) { - if(*s == '\'' || *s == '"') *s = ' '; - s++; - } -} - -int health_readfile(const char *path, const char *filename) { - debug(D_HEALTH, "Health configuration reading file '%s/%s'", path, filename); - - static uint32_t hash_alarm = 0, hash_template = 0, hash_on = 0, hash_families = 0, hash_calc = 0, hash_green = 0, hash_red = 0, hash_warn = 0, hash_crit = 0, hash_exec = 0, hash_every = 0, hash_lookup = 0, hash_units = 0, hash_info = 0, hash_recipient = 0, hash_delay = 0; - char buffer[HEALTH_CONF_MAX_LINE + 1]; - - if(unlikely(!hash_alarm)) { - hash_alarm = simple_uhash(HEALTH_ALARM_KEY); - hash_template = simple_uhash(HEALTH_TEMPLATE_KEY); - hash_on = simple_uhash(HEALTH_ON_KEY); - hash_families = simple_uhash(HEALTH_FAMILIES_KEY); - hash_calc = simple_uhash(HEALTH_CALC_KEY); - hash_lookup = simple_uhash(HEALTH_LOOKUP_KEY); - hash_green = simple_uhash(HEALTH_GREEN_KEY); - hash_red = simple_uhash(HEALTH_RED_KEY); - hash_warn = simple_uhash(HEALTH_WARN_KEY); - hash_crit = simple_uhash(HEALTH_CRIT_KEY); - hash_exec = simple_uhash(HEALTH_EXEC_KEY); - hash_every = simple_uhash(HEALTH_EVERY_KEY); - hash_units = simple_hash(HEALTH_UNITS_KEY); - hash_info = simple_hash(HEALTH_INFO_KEY); - hash_recipient = simple_hash(HEALTH_RECIPIENT_KEY); - hash_delay = simple_uhash(HEALTH_DELAY_KEY); - } - - snprintfz(buffer, HEALTH_CONF_MAX_LINE, "%s/%s", path, filename); - FILE *fp = fopen(buffer, "r"); - if(!fp) { - error("Health configuration cannot read file '%s'.", buffer); - return 0; - } - - RRDCALC *rc = NULL; - RRDCALCTEMPLATE *rt = NULL; - - size_t line = 0, append = 0; - char *s; - while((s = fgets(&buffer[append], (int)(HEALTH_CONF_MAX_LINE - append), fp)) || append) { - int stop_appending = !s; - line++; - s = trim(buffer); - if(!s) continue; - - append = strlen(s); - if(!stop_appending && s[append - 1] == '\\') { - s[append - 1] = ' '; - append = &s[append] - buffer; - if(append < HEALTH_CONF_MAX_LINE) - continue; - else { - error("Health configuration has too long muli-line at line %zu of file '%s/%s'.", line, path, filename); - } - } - append = 0; - - char *key = s; - while(*s && *s != ':') s++; - if(!*s) { - error("Health configuration has invalid line %zu of file '%s/%s'. It does not contain a ':'. Ignoring it.", line, path, filename); - continue; - } - *s = '\0'; - s++; - - char *value = s; - key = trim(key); - value = trim(value); - - if(!key) { - error("Health configuration has invalid line %zu of file '%s/%s'. Keyword is empty. Ignoring it.", line, path, filename); - continue; - } - - if(!value) { - error("Health configuration has invalid line %zu of file '%s/%s'. value is empty. Ignoring it.", line, path, filename); - continue; - } - - uint32_t hash = simple_uhash(key); - - if(hash == hash_alarm && !strcasecmp(key, HEALTH_ALARM_KEY)) { - if(rc && !rrdcalc_add_alarm_from_config(&localhost, rc)) - rrdcalc_free(&localhost, rc); - - if(rt) { - if (!rrdcalctemplate_add_template_from_config(&localhost, rt)) - rrdcalctemplate_free(&localhost, rt); - rt = NULL; - } - - rc = callocz(1, sizeof(RRDCALC)); - rc->next_event_id = 1; - rc->name = tabs2spaces(strdupz(value)); - rc->hash = simple_hash(rc->name); - rc->source = health_source_file(line, path, filename); - rc->green = NAN; - rc->red = NAN; - rc->value = NAN; - rc->old_value = NAN; - rc->delay_multiplier = 1.0; - - if(rrdvar_fix_name(rc->name)) - error("Health configuration renamed alarm '%s' to '%s'", value, rc->name); - } - else if(hash == hash_template && !strcasecmp(key, HEALTH_TEMPLATE_KEY)) { - if(rc) { - if(!rrdcalc_add_alarm_from_config(&localhost, rc)) - rrdcalc_free(&localhost, rc); - rc = NULL; - } - - if(rt && !rrdcalctemplate_add_template_from_config(&localhost, rt)) - rrdcalctemplate_free(&localhost, rt); - - rt = callocz(1, sizeof(RRDCALCTEMPLATE)); - rt->name = tabs2spaces(strdupz(value)); - rt->hash_name = simple_hash(rt->name); - rt->source = health_source_file(line, path, filename); - rt->green = NAN; - rt->red = NAN; - rt->delay_multiplier = 1.0; - - if(rrdvar_fix_name(rt->name)) - error("Health configuration renamed template '%s' to '%s'", value, rt->name); - } - else if(rc) { - if(hash == hash_on && !strcasecmp(key, HEALTH_ON_KEY)) { - if(rc->chart) { - if(strcmp(rc->chart, value)) - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rc->name, key, rc->chart, value, value); - - freez(rc->chart); - } - rc->chart = tabs2spaces(strdupz(value)); - rc->hash_chart = simple_hash(rc->chart); - } - else if(hash == hash_lookup && !strcasecmp(key, HEALTH_LOOKUP_KEY)) { - health_parse_db_lookup(line, path, filename, value, &rc->group, &rc->after, &rc->before, - &rc->update_every, - &rc->options, &rc->dimensions); - } - else if(hash == hash_every && !strcasecmp(key, HEALTH_EVERY_KEY)) { - if(!health_parse_duration(value, &rc->update_every)) - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' at key '%s' cannot parse duration: '%s'.", - line, path, filename, rc->name, key, value); - } - else if(hash == hash_green && !strcasecmp(key, HEALTH_GREEN_KEY)) { - char *e; - rc->green = strtold(value, &e); - if(e && *e) { - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' at key '%s' leaves this string unmatched: '%s'.", - line, path, filename, rc->name, key, e); - } - } - else if(hash == hash_red && !strcasecmp(key, HEALTH_RED_KEY)) { - char *e; - rc->red = strtold(value, &e); - if(e && *e) { - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' at key '%s' leaves this string unmatched: '%s'.", - line, path, filename, rc->name, key, e); - } - } - else if(hash == hash_calc && !strcasecmp(key, HEALTH_CALC_KEY)) { - const char *failed_at = NULL; - int error = 0; - rc->calculation = expression_parse(value, &failed_at, &error); - if(!rc->calculation) { - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' at key '%s' has unparse-able expression '%s': %s at '%s'", - line, path, filename, rc->name, key, value, expression_strerror(error), failed_at); - } - } - else if(hash == hash_warn && !strcasecmp(key, HEALTH_WARN_KEY)) { - const char *failed_at = NULL; - int error = 0; - rc->warning = expression_parse(value, &failed_at, &error); - if(!rc->warning) { - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' at key '%s' has unparse-able expression '%s': %s at '%s'", - line, path, filename, rc->name, key, value, expression_strerror(error), failed_at); - } - } - else if(hash == hash_crit && !strcasecmp(key, HEALTH_CRIT_KEY)) { - const char *failed_at = NULL; - int error = 0; - rc->critical = expression_parse(value, &failed_at, &error); - if(!rc->critical) { - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' at key '%s' has unparse-able expression '%s': %s at '%s'", - line, path, filename, rc->name, key, value, expression_strerror(error), failed_at); - } - } - else if(hash == hash_exec && !strcasecmp(key, HEALTH_EXEC_KEY)) { - if(rc->exec) { - if(strcmp(rc->exec, value)) - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rc->name, key, rc->exec, value, value); - - freez(rc->exec); - } - rc->exec = tabs2spaces(strdupz(value)); - } - else if(hash == hash_recipient && !strcasecmp(key, HEALTH_RECIPIENT_KEY)) { - if(rc->recipient) { - if(strcmp(rc->recipient, value)) - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rc->name, key, rc->recipient, value, value); - - freez(rc->recipient); - } - rc->recipient = tabs2spaces(strdupz(value)); - } - else if(hash == hash_units && !strcasecmp(key, HEALTH_UNITS_KEY)) { - if(rc->units) { - if(strcmp(rc->units, value)) - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rc->name, key, rc->units, value, value); - - freez(rc->units); - } - rc->units = tabs2spaces(strdupz(value)); - strip_quotes(rc->units); - } - else if(hash == hash_info && !strcasecmp(key, HEALTH_INFO_KEY)) { - if(rc->info) { - if(strcmp(rc->info, value)) - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rc->name, key, rc->info, value, value); - - freez(rc->info); - } - rc->info = tabs2spaces(strdupz(value)); - strip_quotes(rc->info); - } - else if(hash == hash_delay && !strcasecmp(key, HEALTH_DELAY_KEY)) { - health_parse_delay(line, path, filename, value, &rc->delay_up_duration, &rc->delay_down_duration, &rc->delay_max_duration, &rc->delay_multiplier); - } - else { - error("Health configuration at line %zu of file '%s/%s' for alarm '%s' has unknown key '%s'.", - line, path, filename, rc->name, key); - } - } - else if(rt) { - if(hash == hash_on && !strcasecmp(key, HEALTH_ON_KEY)) { - if(rt->context) { - if(strcmp(rt->context, value)) - error("Health configuration at line %zu of file '%s/%s' for template '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rt->name, key, rt->context, value, value); - - freez(rt->context); - } - rt->context = tabs2spaces(strdupz(value)); - rt->hash_context = simple_hash(rt->context); - } - else if(hash == hash_families && !strcasecmp(key, HEALTH_FAMILIES_KEY)) { - freez(rt->family_match); - simple_pattern_free(rt->family_pattern); - - rt->family_match = tabs2spaces(strdupz(value)); - rt->family_pattern = simple_pattern_create(rt->family_match, SIMPLE_PATTERN_EXACT); - } - else if(hash == hash_lookup && !strcasecmp(key, HEALTH_LOOKUP_KEY)) { - health_parse_db_lookup(line, path, filename, value, &rt->group, &rt->after, &rt->before, - &rt->update_every, &rt->options, &rt->dimensions); - } - else if(hash == hash_every && !strcasecmp(key, HEALTH_EVERY_KEY)) { - if(!health_parse_duration(value, &rt->update_every)) - error("Health configuration at line %zu of file '%s/%s' for template '%s' at key '%s' cannot parse duration: '%s'.", - line, path, filename, rt->name, key, value); - } - else if(hash == hash_green && !strcasecmp(key, HEALTH_GREEN_KEY)) { - char *e; - rt->green = strtold(value, &e); - if(e && *e) { - error("Health configuration at line %zu of file '%s/%s' for template '%s' at key '%s' leaves this string unmatched: '%s'.", - line, path, filename, rt->name, key, e); - } - } - else if(hash == hash_red && !strcasecmp(key, HEALTH_RED_KEY)) { - char *e; - rt->red = strtold(value, &e); - if(e && *e) { - error("Health configuration at line %zu of file '%s/%s' for template '%s' at key '%s' leaves this string unmatched: '%s'.", - line, path, filename, rt->name, key, e); - } - } - else if(hash == hash_calc && !strcasecmp(key, HEALTH_CALC_KEY)) { - const char *failed_at = NULL; - int error = 0; - rt->calculation = expression_parse(value, &failed_at, &error); - if(!rt->calculation) { - error("Health configuration at line %zu of file '%s/%s' for template '%s' at key '%s' has unparse-able expression '%s': %s at '%s'", - line, path, filename, rt->name, key, value, expression_strerror(error), failed_at); - } - } - else if(hash == hash_warn && !strcasecmp(key, HEALTH_WARN_KEY)) { - const char *failed_at = NULL; - int error = 0; - rt->warning = expression_parse(value, &failed_at, &error); - if(!rt->warning) { - error("Health configuration at line %zu of file '%s/%s' for template '%s' at key '%s' has unparse-able expression '%s': %s at '%s'", - line, path, filename, rt->name, key, value, expression_strerror(error), failed_at); - } - } - else if(hash == hash_crit && !strcasecmp(key, HEALTH_CRIT_KEY)) { - const char *failed_at = NULL; - int error = 0; - rt->critical = expression_parse(value, &failed_at, &error); - if(!rt->critical) { - error("Health configuration at line %zu of file '%s/%s' for template '%s' at key '%s' has unparse-able expression '%s': %s at '%s'", - line, path, filename, rt->name, key, value, expression_strerror(error), failed_at); - } - } - else if(hash == hash_exec && !strcasecmp(key, HEALTH_EXEC_KEY)) { - if(rt->exec) { - if(strcmp(rt->exec, value)) - error("Health configuration at line %zu of file '%s/%s' for template '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rt->name, key, rt->exec, value, value); - - freez(rt->exec); - } - rt->exec = tabs2spaces(strdupz(value)); - } - else if(hash == hash_recipient && !strcasecmp(key, HEALTH_RECIPIENT_KEY)) { - if(rt->recipient) { - if(strcmp(rt->recipient, value)) - error("Health configuration at line %zu of file '%s/%s' for template '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rt->name, key, rt->recipient, value, value); - - freez(rt->recipient); - } - rt->recipient = tabs2spaces(strdupz(value)); - } - else if(hash == hash_units && !strcasecmp(key, HEALTH_UNITS_KEY)) { - if(rt->units) { - if(strcmp(rt->units, value)) - error("Health configuration at line %zu of file '%s/%s' for template '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rt->name, key, rt->units, value, value); - - freez(rt->units); - } - rt->units = tabs2spaces(strdupz(value)); - strip_quotes(rt->units); - } - else if(hash == hash_info && !strcasecmp(key, HEALTH_INFO_KEY)) { - if(rt->info) { - if(strcmp(rt->info, value)) - error("Health configuration at line %zu of file '%s/%s' for template '%s' has key '%s' twice, once with value '%s' and later with value '%s'. Using ('%s').", - line, path, filename, rt->name, key, rt->info, value, value); - - freez(rt->info); - } - rt->info = tabs2spaces(strdupz(value)); - strip_quotes(rt->info); - } - else if(hash == hash_delay && !strcasecmp(key, HEALTH_DELAY_KEY)) { - health_parse_delay(line, path, filename, value, &rt->delay_up_duration, &rt->delay_down_duration, &rt->delay_max_duration, &rt->delay_multiplier); - } - else { - error("Health configuration at line %zu of file '%s/%s' for template '%s' has unknown key '%s'.", - line, path, filename, rt->name, key); - } - } - else { - error("Health configuration at line %zu of file '%s/%s' has unknown key '%s'. Expected either '" HEALTH_ALARM_KEY "' or '" HEALTH_TEMPLATE_KEY "'.", - line, path, filename, key); - } - } - - if(rc && !rrdcalc_add_alarm_from_config(&localhost, rc)) - rrdcalc_free(&localhost, rc); - - if(rt && !rrdcalctemplate_add_template_from_config(&localhost, rt)) - rrdcalctemplate_free(&localhost, rt); - - fclose(fp); - return 1; -} - -void health_readdir(const char *path) { - size_t pathlen = strlen(path); - - debug(D_HEALTH, "Health configuration reading directory '%s'", path); - - DIR *dir = opendir(path); - if (!dir) { - error("Health configuration cannot open directory '%s'.", path); - return; - } - - struct dirent *de = NULL; - while ((de = readdir(dir))) { - size_t len = strlen(de->d_name); - - if(de->d_type == DT_DIR - && ( - (de->d_name[0] == '.' && de->d_name[1] == '\0') - || (de->d_name[0] == '.' && de->d_name[1] == '.' && de->d_name[2] == '\0') - )) { - debug(D_HEALTH, "Ignoring directory '%s'", de->d_name); - continue; - } - - else if(de->d_type == DT_DIR) { - char *s = mallocz(pathlen + strlen(de->d_name) + 2); - strcpy(s, path); - strcat(s, "/"); - strcat(s, de->d_name); - health_readdir(s); - freez(s); - continue; - } - - else if((de->d_type == DT_LNK || de->d_type == DT_REG || de->d_type == DT_UNKNOWN) && - len > 5 && !strcmp(&de->d_name[len - 5], ".conf")) { - health_readfile(path, de->d_name); - } - - else debug(D_HEALTH, "Ignoring file '%s'", de->d_name); - } - - closedir(dir); -} - -static inline char *health_config_dir(void) { - char buffer[FILENAME_MAX + 1]; - snprintfz(buffer, FILENAME_MAX, "%s/health.d", config_get("global", "config directory", CONFIG_DIR)); - return config_get("health", "health configuration directory", buffer); + snprintfz(buffer, FILENAME_MAX, "%s/health.d", netdata_configured_config_dir); + return config_get(CONFIG_SECTION_HEALTH, "health configuration directory", buffer); } void health_init(void) { debug(D_HEALTH, "Health configuration initializing"); - if(!(health_enabled = config_get_boolean("health", "enabled", 1))) { + if(!(default_health_enabled = config_get_boolean(CONFIG_SECTION_HEALTH, "enabled", 1))) { debug(D_HEALTH, "Health is disabled."); return; } - - char *pathname = config_get("health", "health db directory", VARLIB_DIR "/health"); - if(mkdir(pathname, 0770) == -1 && errno != EEXIST) - fatal("Cannot create directory '%s'.", pathname); - - char filename[FILENAME_MAX + 1]; - snprintfz(filename, FILENAME_MAX, "%s/health-log.db", pathname); - health.log_filename = config_get("health", "health db file", filename); - - health_alarm_log_load(&localhost); - health_alarm_log_open(); - - char *path = health_config_dir(); - - { - char buffer[FILENAME_MAX + 1]; - snprintfz(buffer, FILENAME_MAX, "%s/alarm-notify.sh", config_get("global", "plugins directory", PLUGINS_DIR)); - health.health_default_exec = config_get("health", "script to execute on alarm", buffer); - } - - long n = config_get_number("health", "in memory max health log entries", (long)localhost.health_log.max); - if(n < 10) { - error("Health configuration has invalid max log entries %ld. Using default %u", n, localhost.health_log.max); - config_set_number("health", "in memory max health log entries", (long)localhost.health_log.max); - } - else localhost.health_log.max = (unsigned int)n; - - rrdhost_rwlock(&localhost); - health_readdir(path); - rrdhost_unlock(&localhost); } // ---------------------------------------------------------------------------- -// JSON generation - -static inline void health_string2json(BUFFER *wb, const char *prefix, const char *label, const char *value, const char *suffix) { - if(value && *value) - buffer_sprintf(wb, "%s\"%s\":\"%s\"%s", prefix, label, value, suffix); - else - buffer_sprintf(wb, "%s\"%s\":null%s", prefix, label, suffix); -} - -static inline void health_alarm_entry2json_nolock(BUFFER *wb, ALARM_ENTRY *ae, RRDHOST *host) { - buffer_sprintf(wb, "\n\t{\n" - "\t\t\"hostname\": \"%s\",\n" - "\t\t\"unique_id\": %u,\n" - "\t\t\"alarm_id\": %u,\n" - "\t\t\"alarm_event_id\": %u,\n" - "\t\t\"name\": \"%s\",\n" - "\t\t\"chart\": \"%s\",\n" - "\t\t\"family\": \"%s\",\n" - "\t\t\"processed\": %s,\n" - "\t\t\"updated\": %s,\n" - "\t\t\"exec_run\": %lu,\n" - "\t\t\"exec_failed\": %s,\n" - "\t\t\"exec\": \"%s\",\n" - "\t\t\"recipient\": \"%s\",\n" - "\t\t\"exec_code\": %d,\n" - "\t\t\"source\": \"%s\",\n" - "\t\t\"units\": \"%s\",\n" - "\t\t\"info\": \"%s\",\n" - "\t\t\"when\": %lu,\n" - "\t\t\"duration\": %lu,\n" - "\t\t\"non_clear_duration\": %lu,\n" - "\t\t\"status\": \"%s\",\n" - "\t\t\"old_status\": \"%s\",\n" - "\t\t\"delay\": %d,\n" - "\t\t\"delay_up_to_timestamp\": %lu,\n" - "\t\t\"updated_by_id\": %u,\n" - "\t\t\"updates_id\": %u,\n", - host->hostname, - ae->unique_id, - ae->alarm_id, - ae->alarm_event_id, - ae->name, - ae->chart, - ae->family, - (ae->flags & HEALTH_ENTRY_FLAG_PROCESSED)?"true":"false", - (ae->flags & HEALTH_ENTRY_FLAG_UPDATED)?"true":"false", - (unsigned long)ae->exec_run_timestamp, - (ae->flags & HEALTH_ENTRY_FLAG_EXEC_FAILED)?"true":"false", - ae->exec?ae->exec:health.health_default_exec, - ae->recipient?ae->recipient:health.health_default_recipient, - ae->exec_code, - ae->source, - ae->units?ae->units:"", - ae->info?ae->info:"", - (unsigned long)ae->when, - (unsigned long)ae->duration, - (unsigned long)ae->non_clear_duration, - rrdcalc_status2string(ae->new_status), - rrdcalc_status2string(ae->old_status), - ae->delay, - (unsigned long)ae->delay_up_to_timestamp, - ae->updated_by_id, - ae->updates_id - ); - - buffer_strcat(wb, "\t\t\"value\":"); - buffer_rrd_value(wb, ae->new_value); - buffer_strcat(wb, ",\n"); - - buffer_strcat(wb, "\t\t\"old_value\":"); - buffer_rrd_value(wb, ae->old_value); - buffer_strcat(wb, "\n"); - - buffer_strcat(wb, "\t}"); -} - -void health_alarm_log2json(RRDHOST *host, BUFFER *wb, uint32_t after) { - pthread_rwlock_rdlock(&host->health_log.alarm_log_rwlock); - - buffer_strcat(wb, "["); - - unsigned int max = host->health_log.max; - unsigned int count = 0; - ALARM_ENTRY *ae; - for(ae = host->health_log.alarms; ae && count < max ; count++, ae = ae->next) { - if(ae->unique_id > after) { - if(likely(count)) buffer_strcat(wb, ","); - health_alarm_entry2json_nolock(wb, ae, host); - } - } - - buffer_strcat(wb, "\n]\n"); - - pthread_rwlock_unlock(&host->health_log.alarm_log_rwlock); -} - -static inline void health_rrdcalc2json_nolock(BUFFER *wb, RRDCALC *rc) { - buffer_sprintf(wb, - "\t\t\"%s.%s\": {\n" - "\t\t\t\"id\": %lu,\n" - "\t\t\t\"name\": \"%s\",\n" - "\t\t\t\"chart\": \"%s\",\n" - "\t\t\t\"family\": \"%s\",\n" - "\t\t\t\"active\": %s,\n" - "\t\t\t\"exec\": \"%s\",\n" - "\t\t\t\"recipient\": \"%s\",\n" - "\t\t\t\"source\": \"%s\",\n" - "\t\t\t\"units\": \"%s\",\n" - "\t\t\t\"info\": \"%s\",\n" - "\t\t\t\"status\": \"%s\",\n" - "\t\t\t\"last_status_change\": %lu,\n" - "\t\t\t\"last_updated\": %lu,\n" - "\t\t\t\"next_update\": %lu,\n" - "\t\t\t\"update_every\": %d,\n" - "\t\t\t\"delay_up_duration\": %d,\n" - "\t\t\t\"delay_down_duration\": %d,\n" - "\t\t\t\"delay_max_duration\": %d,\n" - "\t\t\t\"delay_multiplier\": %f,\n" - "\t\t\t\"delay\": %d,\n" - "\t\t\t\"delay_up_to_timestamp\": %lu,\n" - , rc->chart, rc->name - , (unsigned long)rc->id - , rc->name - , rc->chart - , (rc->rrdset && rc->rrdset->family)?rc->rrdset->family:"" - , (rc->rrdset)?"true":"false" - , rc->exec?rc->exec:health.health_default_exec - , rc->recipient?rc->recipient:health.health_default_recipient - , rc->source - , rc->units?rc->units:"" - , rc->info?rc->info:"" - , rrdcalc_status2string(rc->status) - , (unsigned long)rc->last_status_change - , (unsigned long)rc->last_updated - , (unsigned long)rc->next_update - , rc->update_every - , rc->delay_up_duration - , rc->delay_down_duration - , rc->delay_max_duration - , rc->delay_multiplier - , rc->delay_last - , (unsigned long)rc->delay_up_to_timestamp - ); - - if(RRDCALC_HAS_DB_LOOKUP(rc)) { - if(rc->dimensions && *rc->dimensions) - health_string2json(wb, "\t\t\t", "lookup_dimensions", rc->dimensions, ",\n"); - - buffer_sprintf(wb, - "\t\t\t\"db_after\": %lu,\n" - "\t\t\t\"db_before\": %lu,\n" - "\t\t\t\"lookup_method\": \"%s\",\n" - "\t\t\t\"lookup_after\": %d,\n" - "\t\t\t\"lookup_before\": %d,\n" - "\t\t\t\"lookup_options\": \"", - (unsigned long) rc->db_after, - (unsigned long) rc->db_before, - group_method2string(rc->group), - rc->after, - rc->before - ); - buffer_data_options2string(wb, rc->options); - buffer_strcat(wb, "\",\n"); - } - - if(rc->calculation) { - health_string2json(wb, "\t\t\t", "calc", rc->calculation->source, ",\n"); - health_string2json(wb, "\t\t\t", "calc_parsed", rc->calculation->parsed_as, ",\n"); - } - - if(rc->warning) { - health_string2json(wb, "\t\t\t", "warn", rc->warning->source, ",\n"); - health_string2json(wb, "\t\t\t", "warn_parsed", rc->warning->parsed_as, ",\n"); - } - - if(rc->critical) { - health_string2json(wb, "\t\t\t", "crit", rc->critical->source, ",\n"); - health_string2json(wb, "\t\t\t", "crit_parsed", rc->critical->parsed_as, ",\n"); - } - - buffer_strcat(wb, "\t\t\t\"green\":"); - buffer_rrd_value(wb, rc->green); - buffer_strcat(wb, ",\n"); - - buffer_strcat(wb, "\t\t\t\"red\":"); - buffer_rrd_value(wb, rc->red); - buffer_strcat(wb, ",\n"); - - buffer_strcat(wb, "\t\t\t\"value\":"); - buffer_rrd_value(wb, rc->value); - buffer_strcat(wb, "\n"); - - buffer_strcat(wb, "\t\t}"); -} - -//void health_rrdcalctemplate2json_nolock(BUFFER *wb, RRDCALCTEMPLATE *rt) { -// -//} - -void health_alarms2json(RRDHOST *host, BUFFER *wb, int all) { - int i; - - rrdhost_rdlock(&localhost); - buffer_sprintf(wb, "{\n\t\"hostname\": \"%s\"," - "\n\t\"latest_alarm_log_unique_id\": %u," - "\n\t\"status\": %s," - "\n\t\"now\": %lu," - "\n\t\"alarms\": {\n", - host->hostname, - (host->health_log.next_log_id > 0)?(host->health_log.next_log_id - 1):0, - health_enabled?"true":"false", - (unsigned long)now_realtime_sec()); - - RRDCALC *rc; - for(i = 0, rc = host->alarms; rc ; rc = rc->next) { - if(unlikely(!rc->rrdset || !rc->rrdset->last_collected_time.tv_sec)) - continue; - - if(likely(!all && !(rc->status == RRDCALC_STATUS_WARNING || rc->status == RRDCALC_STATUS_CRITICAL))) - continue; - - if(likely(i)) buffer_strcat(wb, ",\n"); - health_rrdcalc2json_nolock(wb, rc); - i++; - } - -// buffer_strcat(wb, "\n\t},\n\t\"templates\": {"); -// RRDCALCTEMPLATE *rt; -// for(rt = host->templates; rt ; rt = rt->next) -// health_rrdcalctemplate2json_nolock(wb, rt); +// re-load health configuration - buffer_strcat(wb, "\n\t}\n}\n"); - rrdhost_unlock(&localhost); -} +void health_reload_host(RRDHOST *host) { + if(unlikely(!host->health_enabled)) + return; + char *path = health_config_dir(); -// ---------------------------------------------------------------------------- -// re-load health configuration + // free all running alarms + rrdhost_wrlock(host); -static inline void health_free_all_nolock(RRDHOST *host) { while(host->templates) rrdcalctemplate_free(host, host->templates); while(host->alarms) rrdcalc_free(host, host->alarms); -} - -void health_reload(void) { - if(!health_enabled) { - error("Health reload is requested, but health is not enabled."); - return; - } - - char *path = health_config_dir(); - // free all running alarms - rrdhost_rwlock(&localhost); - health_free_all_nolock(&localhost); - rrdhost_unlock(&localhost); + rrdhost_unlock(host); // invalidate all previous entries in the alarm log ALARM_ENTRY *t; - for(t = localhost.health_log.alarms ; t ; t = t->next) { + for(t = host->health_log.alarms ; t ; t = t->next) { if(t->new_status != RRDCALC_STATUS_REMOVED) t->flags |= HEALTH_ENTRY_FLAG_UPDATED; } + rrdhost_rdlock(host); // reset all thresholds to all charts RRDSET *st; - for(st = localhost.rrdset_root; st ; st = st->next) { + rrdset_foreach_read(st, host) { st->green = NAN; st->red = NAN; } + rrdhost_unlock(host); // load the new alarms - rrdhost_rwlock(&localhost); - health_readdir(path); - rrdhost_unlock(&localhost); + rrdhost_wrlock(host); + health_readdir(host, path); // link the loaded alarms to their charts - for(st = localhost.rrdset_root; st ; st = st->next) { - rrdhost_rwlock(&localhost); - + rrdset_foreach_write(st, host) { rrdsetcalc_link_matching(st); rrdcalctemplate_link_matching(st); - - rrdhost_unlock(&localhost); } + + rrdhost_unlock(host); +} + +void health_reload(void) { + + rrd_rdlock(); + + RRDHOST *host; + rrdhost_foreach_read(host) + health_reload_host(host); + + rrd_unlock(); } // ---------------------------------------------------------------------------- @@ -2601,12 +97,21 @@ static inline void health_alarm_execute(RRDHOST *host, ALARM_ENTRY *ae) { if(unlikely(ae->new_status < RRDCALC_STATUS_CLEAR)) { // do not send notifications for internal statuses + debug(D_HEALTH, "Health not sending notification for alarm '%s.%s' status %s (internal statuses)", ae->chart, ae->name, 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 + debug(D_HEALTH, "Health not sending notification for alarm '%s.%s' status %s (it has no-clear-notification enabled)", ae->chart, ae->name, 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 + if(likely(!(ae->flags & HEALTH_ENTRY_FLAG_NO_CLEAR_NOTIFICATION))) { uint32_t id = ae->alarm_id; ALARM_ENTRY *t; for(t = ae->next; t ; t = t->next) { @@ -2637,13 +142,10 @@ static inline void health_alarm_execute(RRDHOST *host, ALARM_ENTRY *ae) { static char command_to_run[ALARM_EXEC_COMMAND_LENGTH + 1]; pid_t command_pid; - const char *exec = ae->exec; - if(!exec) exec = health.health_default_exec; + const char *exec = (ae->exec) ? ae->exec : host->health_default_exec; + const char *recipient = (ae->recipient) ? ae->recipient : host->health_default_recipient; - const char *recipient = ae->recipient; - if(!recipient) recipient = health.health_default_recipient; - - snprintfz(command_to_run, ALARM_EXEC_COMMAND_LENGTH, "exec %s '%s' '%s' '%u' '%u' '%u' '%lu' '%s' '%s' '%s' '%s' '%s' '%0.0Lf' '%0.0Lf' '%s' '%u' '%u' '%s' '%s'", + snprintfz(command_to_run, ALARM_EXEC_COMMAND_LENGTH, "exec %s '%s' '%s' '%u' '%u' '%u' '%lu' '%s' '%s' '%s' '%s' '%s' '%0.0Lf' '%0.0Lf' '%s' '%u' '%u' '%s' '%s' '%s' '%s'", exec, recipient, host->hostname, @@ -2662,7 +164,9 @@ static inline void health_alarm_execute(RRDHOST *host, ALARM_ENTRY *ae) { (uint32_t)ae->duration, (uint32_t)ae->non_clear_duration, ae->units?ae->units:"", - ae->info?ae->info:"" + ae->info?ae->info:"", + ae->new_value_string, + ae->old_value_string ); ae->flags |= HEALTH_ENTRY_FLAG_EXEC_RUN; @@ -2704,7 +208,7 @@ 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(); - pthread_rwlock_rdlock(&host->health_log.alarm_log_rwlock); + netdata_rwlock_rdlock(&host->health_log.alarm_log_rwlock); ALARM_ENTRY *ae; for(ae = host->health_log.alarms; ae && ae->unique_id >= stop_at_id ; ae = ae->next) { @@ -2724,13 +228,13 @@ static inline void health_alarm_log_process(RRDHOST *host) { // remember this for the next iteration stop_at_id = first_waiting; - pthread_rwlock_unlock(&host->health_log.alarm_log_rwlock); + netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); if(host->health_log.count <= host->health_log.max) return; // cleanup excess entries in the log - pthread_rwlock_wrlock(&host->health_log.alarm_log_rwlock); + netdata_rwlock_wrlock(&host->health_log.alarm_log_rwlock); ALARM_ENTRY *last = NULL; unsigned int count = host->health_log.max * 2 / 3; @@ -2746,21 +250,13 @@ static inline void health_alarm_log_process(RRDHOST *host) { ALARM_ENTRY *t = ae->next; - freez(ae->name); - freez(ae->chart); - freez(ae->family); - freez(ae->exec); - freez(ae->recipient); - freez(ae->source); - freez(ae->units); - freez(ae->info); - freez(ae); + health_alarm_log_free_one_nochecks_nounlink(ae); ae = t; host->health_log.count--; } - pthread_rwlock_unlock(&host->health_log.alarm_log_rwlock); + netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); } static inline int rrdcalc_isrunnable(RRDCALC *rc, time_t now, time_t *next_run) { @@ -2785,6 +281,16 @@ static inline int rrdcalc_isrunnable(RRDCALC *rc, time_t now, time_t *next_run) return 0; } + if(unlikely(rrdset_flag_check(rc->rrdset, RRDSET_FLAG_OBSOLETE))) { + debug(D_HEALTH, "Health not running alarm '%s.%s'. The chart has been marked as obsolete", rc->chart?rc->chart:"NOCHART", rc->name); + return 0; + } + + if(unlikely(!rrdset_flag_check(rc->rrdset, RRDSET_FLAG_ENABLED))) { + debug(D_HEALTH, "Health not running alarm '%s.%s'. The chart is not enabled", rc->chart?rc->chart:"NOCHART", rc->name); + return 0; + } + if(unlikely(!rc->rrdset->last_collected_time.tv_sec || rc->rrdset->counter_done < 2)) { debug(D_HEALTH, "Health not running alarm '%s.%s'. Chart is not fully collected yet.", rc->chart?rc->chart:"NOCHART", rc->name); return 0; @@ -2828,299 +334,396 @@ void *health_main(void *ptr) { if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0) error("Cannot set pthread cancel state to ENABLE."); - int min_run_every = (int)config_get_number("health", "run at least every seconds", 10); + int min_run_every = (int)config_get_number(CONFIG_SECTION_HEALTH, "run at least every seconds", 10); if(min_run_every < 1) min_run_every = 1; BUFFER *wb = buffer_create(100); + time_t now = now_realtime_sec(); + time_t now_boottime = now_boottime_sec(); + time_t last_now = now; + time_t last_now_boottime = now_boottime; + time_t hibernation_delay = config_get_number(CONFIG_SECTION_HEALTH, "postpone alarms during hibernation for seconds", 60); + unsigned int loop = 0; - while(health_enabled && !netdata_exit) { + while(!netdata_exit) { loop++; debug(D_HEALTH, "Health monitoring iteration no %u started", loop); - int oldstate, runnable = 0; - time_t now = now_realtime_sec(); + int oldstate, runnable = 0, apply_hibernation_delay = 0; time_t next_run = now + min_run_every; RRDCALC *rc; + // detect if boottime and realtime have twice the difference + // in which case we assume the system was just waken from hibernation + if(unlikely(now - last_now > 2 * (now_boottime - last_now_boottime))) + apply_hibernation_delay = 1; + + last_now = now; + last_now_boottime = now_boottime; + if(unlikely(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldstate) != 0)) error("Cannot set pthread cancel state to DISABLE."); - rrdhost_rdlock(&localhost); + rrd_rdlock(); - // the first loop is to lookup values from the db - for(rc = localhost.alarms; rc; rc = rc->next) { - if(unlikely(!rrdcalc_isrunnable(rc, now, &next_run))) { - if(unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_RUNNABLE)) - rc->rrdcalc_flags &= ~RRDCALC_FLAG_RUNNABLE; + RRDHOST *host; + rrdhost_foreach_read(host) { + if(unlikely(!host->health_enabled)) continue; - } - - runnable++; - rc->old_value = rc->value; - rc->rrdcalc_flags |= RRDCALC_FLAG_RUNNABLE; - // 1. if there is database lookup, do it - // 2. if there is calculation expression, run it + if(unlikely(apply_hibernation_delay)) { - if (unlikely(RRDCALC_HAS_DB_LOOKUP(rc))) { - /* time_t old_db_timestamp = rc->db_before; */ - int value_is_null = 0; + info("Postponing alarm checks for %ld seconds, on host '%s', due to boottime discrepancy (realtime dt: %ld, boottime dt: %ld)." + , hibernation_delay + , host->hostname + , (long)(now - last_now) + , (long)(now_boottime - last_now_boottime) + ); - int ret = rrd2value(rc->rrdset, wb, &rc->value, - rc->dimensions, 1, rc->after, rc->before, rc->group, - rc->options, &rc->db_after, &rc->db_before, &value_is_null); + host->health_delay_up_to = now + hibernation_delay; + } - if (unlikely(ret != 200)) { - // database lookup failed - rc->value = NAN; + if(unlikely(!host->health_enabled || now < host->health_delay_up_to)) + continue; - debug(D_HEALTH, "Health alarm '%s.%s': database lookup returned error %d", rc->chart?rc->chart:"NOCHART", rc->name, ret); + rrdhost_rdlock(host); - if (unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_DB_ERROR))) { - rc->rrdcalc_flags |= RRDCALC_FLAG_DB_ERROR; - error("Health alarm '%s.%s': database lookup returned error %d", rc->chart?rc->chart:"NOCHART", rc->name, ret); - } + // the first loop is to lookup values from the db + for(rc = host->alarms; rc; rc = rc->next) { + if(unlikely(!rrdcalc_isrunnable(rc, now, &next_run))) { + if(unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_RUNNABLE)) + rc->rrdcalc_flags &= ~RRDCALC_FLAG_RUNNABLE; + continue; } - else if (unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_DB_ERROR)) - rc->rrdcalc_flags &= ~RRDCALC_FLAG_DB_ERROR; - /* - RRDCALC_FLAG_DB_STALE not currently used - if (unlikely(old_db_timestamp == rc->db_before)) { - // database is stale + runnable++; + rc->old_value = rc->value; + rc->rrdcalc_flags |= RRDCALC_FLAG_RUNNABLE; + + // ------------------------------------------------------------ + // if there is database lookup, do it + + if(unlikely(RRDCALC_HAS_DB_LOOKUP(rc))) { + /* time_t old_db_timestamp = rc->db_before; */ + int value_is_null = 0; + + int ret = rrdset2value_api_v1(rc->rrdset + , wb + , &rc->value + , rc->dimensions + , 1 + , rc->after + , rc->before + , rc->group + , rc->options + , &rc->db_after + , &rc->db_before + , &value_is_null + ); - debug(D_HEALTH, "Health alarm '%s.%s': database is stale", rc->chart?rc->chart:"NOCHART", rc->name); + if(unlikely(ret != 200)) { + // database lookup failed + rc->value = NAN; + rc->rrdcalc_flags |= RRDCALC_FLAG_DB_ERROR; - if (unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_DB_STALE))) { - rc->rrdcalc_flags |= RRDCALC_FLAG_DB_STALE; - error("Health alarm '%s.%s': database is stale", rc->chart?rc->chart:"NOCHART", rc->name); + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': database lookup returned error %d" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , ret + ); } - } - else if (unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_DB_STALE)) - rc->rrdcalc_flags &= ~RRDCALC_FLAG_DB_STALE; - */ + else + rc->rrdcalc_flags &= ~RRDCALC_FLAG_DB_ERROR; - if (unlikely(value_is_null)) { - // collected value is null + /* - RRDCALC_FLAG_DB_STALE not currently used + if (unlikely(old_db_timestamp == rc->db_before)) { + // database is stale - rc->value = NAN; + debug(D_HEALTH, "Health on host '%s', alarm '%s.%s': database is stale", host->hostname, rc->chart?rc->chart:"NOCHART", rc->name); - debug(D_HEALTH, "Health alarm '%s.%s': database lookup returned empty value (possibly value is not collected yet)", - rc->chart?rc->chart:"NOCHART", rc->name); + if (unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_DB_STALE))) { + rc->rrdcalc_flags |= RRDCALC_FLAG_DB_STALE; + error("Health on host '%s', alarm '%s.%s': database is stale", host->hostname, rc->chart?rc->chart:"NOCHART", rc->name); + } + } + else if (unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_DB_STALE)) + rc->rrdcalc_flags &= ~RRDCALC_FLAG_DB_STALE; + */ - if (unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_DB_NAN))) { + if(unlikely(value_is_null)) { + // collected value is null + rc->value = NAN; rc->rrdcalc_flags |= RRDCALC_FLAG_DB_NAN; - error("Health alarm '%s.%s': database lookup returned empty value (possibly value is not collected yet)", - rc->chart?rc->chart:"NOCHART", rc->name); + + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': database lookup returned empty value (possibly value is not collected yet)" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + ); } + else + rc->rrdcalc_flags &= ~RRDCALC_FLAG_DB_NAN; + + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': database lookup gave value " CALCULATED_NUMBER_FORMAT + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , rc->value + ); } - else if (unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_DB_NAN)) - rc->rrdcalc_flags &= ~RRDCALC_FLAG_DB_NAN; - - debug(D_HEALTH, "Health alarm '%s.%s': database lookup gave value " - CALCULATED_NUMBER_FORMAT, rc->chart?rc->chart:"NOCHART", rc->name, rc->value); - } - if(unlikely(rc->calculation)) { - if (unlikely(!expression_evaluate(rc->calculation))) { - // calculation failed + // ------------------------------------------------------------ + // if there is calculation expression, run it - rc->value = NAN; - - debug(D_HEALTH, "Health alarm '%s.%s': expression '%s' failed: %s", - rc->chart?rc->chart:"NOCHART", rc->name, rc->calculation->parsed_as, buffer_tostring(rc->calculation->error_msg)); - - if (unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_CALC_ERROR))) { + if(unlikely(rc->calculation)) { + if(unlikely(!expression_evaluate(rc->calculation))) { + // calculation failed + rc->value = NAN; rc->rrdcalc_flags |= RRDCALC_FLAG_CALC_ERROR; - error("Health alarm '%s.%s': expression '%s' failed: %s", - rc->chart?rc->chart:"NOCHART", rc->name, rc->calculation->parsed_as, buffer_tostring(rc->calculation->error_msg)); + + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': expression '%s' failed: %s" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , rc->calculation->parsed_as + , buffer_tostring(rc->calculation->error_msg) + ); } - } - else { - if (unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_CALC_ERROR)) + else { rc->rrdcalc_flags &= ~RRDCALC_FLAG_CALC_ERROR; - debug(D_HEALTH, "Health alarm '%s.%s': expression '%s' gave value " - CALCULATED_NUMBER_FORMAT - ": %s (source: %s)", - rc->chart?rc->chart:"NOCHART", rc->name, - rc->calculation->parsed_as, - rc->calculation->result, - buffer_tostring(rc->calculation->error_msg), - rc->source - ); + debug(D_HEALTH, "Health on host '%s', alarm '%s.%s': expression '%s' gave value " CALCULATED_NUMBER_FORMAT ": %s (source: %s)" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , rc->calculation->parsed_as + , rc->calculation->result + , buffer_tostring(rc->calculation->error_msg) + , rc->source + ); - rc->value = rc->calculation->result; + rc->value = rc->calculation->result; + } } } - } - rrdhost_unlock(&localhost); + rrdhost_unlock(host); - if(unlikely(runnable && !netdata_exit)) { - rrdhost_rdlock(&localhost); + if(unlikely(runnable && !netdata_exit)) { + rrdhost_rdlock(host); - for(rc = localhost.alarms; rc; rc = rc->next) { - if(unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_RUNNABLE))) - continue; + for(rc = host->alarms; rc; rc = rc->next) { + if(unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_RUNNABLE))) + continue; - int warning_status = RRDCALC_STATUS_UNDEFINED; - int critical_status = RRDCALC_STATUS_UNDEFINED; + int warning_status = RRDCALC_STATUS_UNDEFINED; + int critical_status = RRDCALC_STATUS_UNDEFINED; - if(likely(rc->warning)) { - if(unlikely(!expression_evaluate(rc->warning))) { - // calculation failed + // -------------------------------------------------------- + // check the warning expression - debug(D_HEALTH, "Health alarm '%s.%s': warning expression failed with error: %s", - rc->chart?rc->chart:"NOCHART", rc->name, buffer_tostring(rc->warning->error_msg)); - - if (unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_WARN_ERROR))) { + if(likely(rc->warning)) { + if(unlikely(!expression_evaluate(rc->warning))) { + // calculation failed rc->rrdcalc_flags |= RRDCALC_FLAG_WARN_ERROR; - error("Health alarm '%s.%s': warning expression failed with error: %s", - rc->chart?rc->chart:"NOCHART", rc->name, buffer_tostring(rc->warning->error_msg)); + + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': warning expression failed with error: %s" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , buffer_tostring(rc->warning->error_msg) + ); } - } - else { - if(unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_WARN_ERROR)) + else { rc->rrdcalc_flags &= ~RRDCALC_FLAG_WARN_ERROR; - - debug(D_HEALTH, "Health alarm '%s.%s': warning expression gave value " - CALCULATED_NUMBER_FORMAT - ": %s (source: %s)", - rc->chart?rc->chart:"NOCHART", rc->name, - rc->warning->result, - buffer_tostring(rc->warning->error_msg), - rc->source - ); - - warning_status = rrdcalc_value2status(rc->warning->result); + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': warning expression gave value " CALCULATED_NUMBER_FORMAT ": %s (source: %s)" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , rc->warning->result + , buffer_tostring(rc->warning->error_msg) + , rc->source + ); + warning_status = rrdcalc_value2status(rc->warning->result); + } } - } - if(likely(rc->critical)) { - if(unlikely(!expression_evaluate(rc->critical))) { - // calculation failed + // -------------------------------------------------------- + // check the critical expression - debug(D_HEALTH, "Health alarm '%s.%s': critical expression failed with error: %s", - rc->chart?rc->chart:"NOCHART", rc->name, buffer_tostring(rc->critical->error_msg)); - - if (unlikely(!(rc->rrdcalc_flags & RRDCALC_FLAG_CRIT_ERROR))) { + if(likely(rc->critical)) { + if(unlikely(!expression_evaluate(rc->critical))) { + // calculation failed rc->rrdcalc_flags |= RRDCALC_FLAG_CRIT_ERROR; - error("Health alarm '%s.%s': critical expression failed with error: %s", - rc->chart?rc->chart:"NOCHART", rc->name, buffer_tostring(rc->critical->error_msg)); + + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': critical expression failed with error: %s" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , buffer_tostring(rc->critical->error_msg) + ); } - } - else { - if(unlikely(rc->rrdcalc_flags & RRDCALC_FLAG_CRIT_ERROR)) + else { rc->rrdcalc_flags &= ~RRDCALC_FLAG_CRIT_ERROR; + debug(D_HEALTH + , "Health on host '%s', alarm '%s.%s': critical expression gave value " CALCULATED_NUMBER_FORMAT ": %s (source: %s)" + , host->hostname + , rc->chart ? rc->chart : "NOCHART" + , rc->name + , rc->critical->result + , buffer_tostring(rc->critical->error_msg) + , rc->source + ); + critical_status = rrdcalc_value2status(rc->critical->result); + } + } - debug(D_HEALTH, "Health alarm '%s.%s': critical expression gave value " - CALCULATED_NUMBER_FORMAT - ": %s (source: %s)", - rc->chart?rc->chart:"NOCHART", rc->name, - rc->critical->result, - buffer_tostring(rc->critical->error_msg), - rc->source - ); + // -------------------------------------------------------- + // decide the final alarm status - critical_status = rrdcalc_value2status(rc->critical->result); + int status = RRDCALC_STATUS_UNDEFINED; + + switch(warning_status) { + case RRDCALC_STATUS_CLEAR: + status = RRDCALC_STATUS_CLEAR; + break; + + case RRDCALC_STATUS_RAISED: + status = RRDCALC_STATUS_WARNING; + break; + + default: + break; } - } - int status = RRDCALC_STATUS_UNDEFINED; + switch(critical_status) { + case RRDCALC_STATUS_CLEAR: + if(status == RRDCALC_STATUS_UNDEFINED) + status = RRDCALC_STATUS_CLEAR; + break; - switch(warning_status) { - case RRDCALC_STATUS_CLEAR: - status = RRDCALC_STATUS_CLEAR; - break; + case RRDCALC_STATUS_RAISED: + status = RRDCALC_STATUS_CRITICAL; + break; - case RRDCALC_STATUS_RAISED: - status = RRDCALC_STATUS_WARNING; - break; + default: + break; + } - default: - break; - } + // -------------------------------------------------------- + // check if the new status and the old differ - switch(critical_status) { - case RRDCALC_STATUS_CLEAR: - if(status == RRDCALC_STATUS_UNDEFINED) - status = RRDCALC_STATUS_CLEAR; - break; + if(status != rc->status) { + int delay = 0; - case RRDCALC_STATUS_RAISED: - status = RRDCALC_STATUS_CRITICAL; - break; + // apply trigger hysteresis - default: - break; - } + if(now > rc->delay_up_to_timestamp) { + rc->delay_up_current = rc->delay_up_duration; + rc->delay_down_current = rc->delay_down_duration; + rc->delay_last = 0; + rc->delay_up_to_timestamp = 0; + } + else { + rc->delay_up_current = (int) (rc->delay_up_current * rc->delay_multiplier); + if(rc->delay_up_current > rc->delay_max_duration) + rc->delay_up_current = rc->delay_max_duration; + + rc->delay_down_current = (int) (rc->delay_down_current * rc->delay_multiplier); + if(rc->delay_down_current > rc->delay_max_duration) + rc->delay_down_current = rc->delay_max_duration; + } - if(status != rc->status) { - int delay = 0; + if(status > rc->status) + delay = rc->delay_up_current; + else + delay = rc->delay_down_current; + + // COMMENTED: because we do need to send raising alarms + // if(now + delay < rc->delay_up_to_timestamp) + // delay = (int)(rc->delay_up_to_timestamp - now); + + rc->delay_last = delay; + rc->delay_up_to_timestamp = now + delay; + + // add the alarm into the log + + 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 + , status + , rc->source + , rc->units + , rc->info + , rc->delay_last + , (rc->options & RRDCALC_FLAG_NO_CLEAR_NOTIFICATION) ? HEALTH_ENTRY_FLAG_NO_CLEAR_NOTIFICATION : 0 + ); - if(now > rc->delay_up_to_timestamp) { - rc->delay_up_current = rc->delay_up_duration; - rc->delay_down_current = rc->delay_down_duration; - rc->delay_last = 0; - rc->delay_up_to_timestamp = 0; + rc->last_status_change = now; + rc->status = status; } - else { - rc->delay_up_current = (int)(rc->delay_up_current * rc->delay_multiplier); - if(rc->delay_up_current > rc->delay_max_duration) rc->delay_up_current = rc->delay_max_duration; - rc->delay_down_current = (int)(rc->delay_down_current * rc->delay_multiplier); - if(rc->delay_down_current > rc->delay_max_duration) rc->delay_down_current = rc->delay_max_duration; - } + rc->last_updated = now; + rc->next_update = now + rc->update_every; - if(status > rc->status) - delay = rc->delay_up_current; - else - delay = rc->delay_down_current; + if(next_run > rc->next_update) + next_run = rc->next_update; + } - // COMMENTED: because we do need to send raising alarms - // if(now + delay < rc->delay_up_to_timestamp) - // delay = (int)(rc->delay_up_to_timestamp - now); + rrdhost_unlock(host); + } - rc->delay_last = delay; - rc->delay_up_to_timestamp = now + delay; - health_alarm_log(&localhost, 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, status, rc->source, rc->units, rc->info, rc->delay_last); - rc->last_status_change = now; - rc->status = status; - } + if(unlikely(netdata_exit)) + break; - rc->last_updated = now; - rc->next_update = now + rc->update_every; + // execute notifications + // and cleanup + health_alarm_log_process(host); - if (next_run > rc->next_update) - next_run = rc->next_update; - } + if(unlikely(netdata_exit)) + break; - rrdhost_unlock(&localhost); - } + } /* rrdhost_foreach */ + + rrd_unlock(); - if (unlikely(pthread_setcancelstate(oldstate, NULL) != 0)) + if(unlikely(pthread_setcancelstate(oldstate, NULL) != 0)) error("Cannot set pthread cancel state to RESTORE (%d).", oldstate); if(unlikely(netdata_exit)) break; - // execute notifications - // and cleanup - health_alarm_log_process(&localhost); - - if(unlikely(netdata_exit)) - break; - now = now_realtime_sec(); if(now < next_run) { - debug(D_HEALTH, "Health monitoring iteration no %u done. Next iteration in %d secs", - loop, (int) (next_run - now)); + debug(D_HEALTH, "Health monitoring iteration no %u done. Next iteration in %d secs", loop, (int) (next_run - now)); sleep_usec(USEC_PER_SEC * (usec_t) (next_run - now)); + now = now_realtime_sec(); } - else { + else debug(D_HEALTH, "Health monitoring iteration no %u done. Next iteration now", loop); - } - } + + now_boottime = now_boottime_sec(); + + } // forever buffer_free(wb); |