diff options
Diffstat (limited to 'src/health_log.c')
| -rw-r--r-- | src/health_log.c | 463 |
1 files changed, 0 insertions, 463 deletions
diff --git a/src/health_log.c b/src/health_log.c deleted file mode 100644 index a44fbadb..00000000 --- a/src/health_log.c +++ /dev/null @@ -1,463 +0,0 @@ -#define NETDATA_HEALTH_INTERNALS -#include "common.h" - -// ---------------------------------------------------------------------------- -// health alarm log load/save -// no need for locking - only one thread is reading / writing the alarms log - -inline int health_alarm_log_open(RRDHOST *host) { - if(host->health_log_fp) - fclose(host->health_log_fp); - - host->health_log_fp = fopen(host->health_log_filename, "a"); - - if(host->health_log_fp) { - if (setvbuf(host->health_log_fp, NULL, _IOLBF, 0) != 0) - error("HEALTH [%s]: cannot set line buffering on health log file '%s'.", host->hostname, host->health_log_filename); - return 0; - } - - error("HEALTH [%s]: cannot open health log file '%s'. Health data will be lost in case of netdata or server crash.", host->hostname, host->health_log_filename); - return -1; -} - -inline void health_alarm_log_close(RRDHOST *host) { - if(host->health_log_fp) { - fclose(host->health_log_fp); - host->health_log_fp = NULL; - } -} - -inline void health_log_rotate(RRDHOST *host) { - static size_t rotate_every = 0; - - if(unlikely(rotate_every == 0)) { - rotate_every = (size_t)config_get_number(CONFIG_SECTION_HEALTH, "rotate log every lines", 2000); - if(rotate_every < 100) rotate_every = 100; - } - - if(unlikely(host->health_log_entries_written > rotate_every)) { - health_alarm_log_close(host); - - char old_filename[FILENAME_MAX + 1]; - snprintfz(old_filename, FILENAME_MAX, "%s.old", host->health_log_filename); - - if(unlink(old_filename) == -1 && errno != ENOENT) - error("HEALTH [%s]: cannot remove old alarms log file '%s'", host->hostname, old_filename); - - if(link(host->health_log_filename, old_filename) == -1 && errno != ENOENT) - error("HEALTH [%s]: cannot move file '%s' to '%s'.", host->hostname, host->health_log_filename, old_filename); - - if(unlink(host->health_log_filename) == -1 && errno != ENOENT) - error("HEALTH [%s]: cannot remove old alarms log file '%s'", host->hostname, host->health_log_filename); - - // open it with truncate - host->health_log_fp = fopen(host->health_log_filename, "w"); - - if(host->health_log_fp) - fclose(host->health_log_fp); - else - error("HEALTH [%s]: cannot truncate health log '%s'", host->hostname, host->health_log_filename); - - host->health_log_fp = NULL; - - host->health_log_entries_written = 0; - health_alarm_log_open(host); - } -} - -inline void health_alarm_log_save(RRDHOST *host, ALARM_ENTRY *ae) { - health_log_rotate(host); - - if(likely(host->health_log_fp)) { - if(unlikely(fprintf(host->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" CALCULATED_NUMBER_FORMAT_AUTO "\t" CALCULATED_NUMBER_FORMAT_AUTO - "\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 - - , ae->new_value - , ae->old_value - ) < 0)) - error("HEALTH [%s]: failed to save alarm log entry to '%s'. Health data may be lost in case of abnormal restart.", host->hostname, host->health_log_filename); - else { - ae->flags |= HEALTH_ENTRY_FLAG_SAVED; - host->health_log_entries_written++; - } - } -} - -inline ssize_t health_alarm_log_read(RRDHOST *host, FILE *fp, const char *filename) { - errno = 0; - - char *s, *buf = mallocz(65536 + 1); - size_t line = 0, len = 0; - ssize_t loaded = 0, updated = 0, errored = 0, duplicate = 0; - - netdata_rwlock_rdlock(&host->health_log.alarm_log_rwlock); - - while((s = fgets_trim_len(buf, 65536, fp, &len))) { - host->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 [%s]: line %zu of file '%s' has more than %d entries. Ignoring excessive entries.", host->hostname, line, filename, max_entries); - break; - } - } - else s++; - } - - if(likely(*pointers[0] == 'U' || *pointers[0] == 'A')) { - ALARM_ENTRY *ae = NULL; - - if(entries < 26) { - error("HEALTH [%s]: line %zu of file '%s' should have at least 26 entries, but it has %d. Ignoring it.", host->hostname, 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 [%s]: line %zu of file '%s' states alarm entry with invalid unique id %u (%s). Ignoring it.", host->hostname, line, filename, unique_id, pointers[2]); - errored++; - continue; - } - - uint32_t alarm_id = (uint32_t)strtoul(pointers[3], NULL, 16); - if(!alarm_id) { - error("HEALTH [%s]: line %zu of file '%s' states alarm entry for invalid alarm id %u (%s). Ignoring it.", host->hostname, 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 [%s]: line %zu of file '%s' has alarm log entry %u in wrong order. Ignoring it.", host->hostname, 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 [%s]: line %zu of file '%s' adds duplicate alarm log entry %u. Using the later." - , host->hostname, 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(unlikely(!ae)) { - // error("HEALTH [%s]: line %zu of file '%s' updates alarm log entry with unique id %u, but it is not found.", host->hostname, line, filename, unique_id); - continue; - } - - // check for a possible host missmatch - //if(strcmp(pointers[1], host->hostname)) - // error("HEALTH [%s]: line %zu of file '%s' provides an alarm for host '%s' but this is named '%s'.", host->hostname, 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); - - freez(ae->name); - ae->name = strdupz(pointers[13]); - ae->hash_name = simple_hash(ae->name); - - freez(ae->chart); - ae->chart = strdupz(pointers[14]); - ae->hash_chart = simple_hash(ae->chart); - - freez(ae->family); - ae->family = strdupz(pointers[15]); - - freez(ae->exec); - ae->exec = strdupz(pointers[16]); - if(!*ae->exec) { freez(ae->exec); ae->exec = NULL; } - - freez(ae->recipient); - ae->recipient = strdupz(pointers[17]); - if(!*ae->recipient) { freez(ae->recipient); ae->recipient = NULL; } - - freez(ae->source); - ae->source = strdupz(pointers[18]); - if(!*ae->source) { freez(ae->source); ae->source = NULL; } - - freez(ae->units); - ae->units = strdupz(pointers[19]); - if(!*ae->units) { freez(ae->units); ae->units = NULL; } - - 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]); - - char value_string[100 + 1]; - freez(ae->old_value_string); - freez(ae->new_value_string); - ae->old_value_string = strdupz(format_value_and_unit(value_string, 100, ae->old_value, ae->units, -1)); - ae->new_value_string = strdupz(format_value_and_unit(value_string, 100, ae->new_value, ae->units, -1)); - - // 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 > host->health_max_unique_id)) - host->health_max_unique_id = ae->unique_id; - - if(unlikely(ae->alarm_id >= host->health_max_alarm_id)) - host->health_max_alarm_id = ae->alarm_id; - } - else { - error("HEALTH [%s]: line %zu of file '%s' is invalid (unrecognized entry type '%s').", host->hostname, line, filename, pointers[0]); - errored++; - } - } - - netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); - - freez(buf); - - if(!host->health_max_unique_id) host->health_max_unique_id = (uint32_t)now_realtime_sec(); - if(!host->health_max_alarm_id) host->health_max_alarm_id = (uint32_t)now_realtime_sec(); - - host->health_log.next_log_id = host->health_max_unique_id + 1; - host->health_log.next_alarm_id = host->health_max_alarm_id + 1; - - debug(D_HEALTH, "HEALTH [%s]: loaded file '%s' with %zd new alarm entries, updated %zd alarms, errors %zd entries, duplicate %zd", host->hostname, filename, loaded, updated, errored, duplicate); - return loaded; -} - -inline void health_alarm_log_load(RRDHOST *host) { - health_alarm_log_close(host); - - char filename[FILENAME_MAX + 1]; - snprintfz(filename, FILENAME_MAX, "%s.old", host->health_log_filename); - FILE *fp = fopen(filename, "r"); - if(!fp) - error("HEALTH [%s]: cannot open health file: %s", host->hostname, filename); - else { - health_alarm_log_read(host, fp, filename); - fclose(fp); - } - - host->health_log_entries_written = 0; - fp = fopen(host->health_log_filename, "r"); - if(!fp) - error("HEALTH [%s]: cannot open health file: %s", host->hostname, host->health_log_filename); - else { - health_alarm_log_read(host, fp, host->health_log_filename); - fclose(fp); - } - - health_alarm_log_open(host); -} - - -// ---------------------------------------------------------------------------- -// health alarm log management - -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, - RRDCALC_STATUS old_status, - RRDCALC_STATUS new_status, - const char *source, - const char *units, - const char *info, - int delay, - uint32_t flags -) { - 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; - - char value_string[100 + 1]; - ae->old_value_string = strdupz(format_value_and_unit(value_string, 100, ae->old_value, ae->units, -1)); - ae->new_value_string = strdupz(format_value_and_unit(value_string, 100, ae->new_value, ae->units, -1)); - - ae->old_status = old_status; - ae->new_status = new_status; - ae->duration = duration; - ae->delay = delay; - ae->delay_up_to_timestamp = when + delay; - - ae->flags |= flags; - - if(ae->old_status == RRDCALC_STATUS_WARNING || ae->old_status == RRDCALC_STATUS_CRITICAL) - ae->non_clear_duration += ae->duration; - - // link it - netdata_rwlock_wrlock(&host->health_log.alarm_log_rwlock); - ae->next = host->health_log.alarms; - host->health_log.alarms = ae; - host->health_log.count++; - netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); - - // match previous alarms - netdata_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; - } - } - netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); - - health_alarm_log_save(host, ae); -} - -inline void health_alarm_log_free_one_nochecks_nounlink(ALARM_ENTRY *ae) { - 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->old_value_string); - freez(ae->new_value_string); - freez(ae); -} - -inline void health_alarm_log_free(RRDHOST *host) { - rrdhost_check_wrlock(host); - - netdata_rwlock_wrlock(&host->health_log.alarm_log_rwlock); - - ALARM_ENTRY *ae; - while((ae = host->health_log.alarms)) { - host->health_log.alarms = ae->next; - health_alarm_log_free_one_nochecks_nounlink(ae); - } - - netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); -} |