diff options
Diffstat (limited to 'health/health_log.c')
| -rw-r--r-- | health/health_log.c | 426 |
1 files changed, 1 insertions, 425 deletions
diff --git a/health/health_log.c b/health/health_log.c index 8105e01ae..d3417493b 100644 --- a/health/health_log.c +++ b/health/health_log.c @@ -3,149 +3,10 @@ #include "health.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'.", rrdhost_hostname(host), 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.", rrdhost_hostname(host), host->health_log_filename); - return -1; -} - -static inline void health_alarm_log_close(RRDHOST *host) { - if(host->health_log_fp) { - fclose(host->health_log_fp); - host->health_log_fp = NULL; - } -} - -static 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)) { - if(unlikely(host->health_log_fp)) { - 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'", rrdhost_hostname(host), old_filename); - - if(link(host->health_log_filename, old_filename) == -1 && errno != ENOENT) - error("HEALTH [%s]: cannot move file '%s' to '%s'.", rrdhost_hostname(host), 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'", rrdhost_hostname(host), 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'", rrdhost_hostname(host), host->health_log_filename); - - host->health_log_fp = NULL; - - host->health_log_entries_written = 0; - health_alarm_log_open(host); - } - } -} - -inline void health_label_log_save(RRDHOST *host) { - health_log_rotate(host); - - if(unlikely(host->health_log_fp)) { - BUFFER *wb = buffer_create(1024); - - rrdlabels_to_buffer(localhost->rrdlabels, wb, "", "=", "", "\t ", NULL, NULL, NULL, NULL); - char *write = (char *) buffer_tostring(wb); - - if (unlikely(fprintf(host->health_log_fp, "L\t%s", write) < 0)) - error("HEALTH [%s]: failed to save alarm log entry to '%s'. Health data may be lost in case of abnormal restart.", - rrdhost_hostname(host), host->health_log_filename); - else - host->health_log_entries_written++; - - buffer_free(wb); - } -} inline void health_alarm_log_save(RRDHOST *host, ALARM_ENTRY *ae) { - health_log_rotate(host); - if(unlikely(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" NETDATA_DOUBLE_FORMAT_AUTO "\t" NETDATA_DOUBLE_FORMAT_AUTO - "\t%016"PRIx64"" - "\t%s\t%s\t%s" - "\n" - , (ae->flags & HEALTH_ENTRY_FLAG_SAVED)?'U':'A' - , rrdhost_hostname(host) - - , 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) - , ae_chart_name(ae) - , ae_family(ae) - , ae_exec(ae) - , ae_recipient(ae) - , ae_source(ae) - , ae_units(ae) - , ae_info(ae) - , ae->exec_code - , ae->new_status - , ae->old_status - , ae->delay - - , ae->new_value - , ae->old_value - , (uint64_t)ae->last_repeat - , (ae->classification)?ae_classification(ae):"Unknown" - , (ae->component)?ae_component(ae):"Unknown" - , (ae->type)?ae_type(ae):"Unknown" - ) < 0)) - error("HEALTH [%s]: failed to save alarm log entry to '%s'. Health data may be lost in case of abnormal restart.", rrdhost_hostname(host), host->health_log_filename); - else { - ae->flags |= HEALTH_ENTRY_FLAG_SAVED; - host->health_log_entries_written++; - } - }else - sql_health_alarm_log_save(host, ae); + sql_health_alarm_log_save(host, ae); #ifdef ENABLE_ACLK if (netdata_cloud_setting) { @@ -154,291 +15,6 @@ inline void health_alarm_log_save(RRDHOST *host, ALARM_ENTRY *ae) { #endif } -static uint32_t is_valid_alarm_id(RRDHOST *host, const char *chart, const char *name, uint32_t alarm_id) -{ - STRING *chart_string = string_strdupz(chart); - STRING *name_string = string_strdupz(name); - - uint32_t ret = 1; - - ALARM_ENTRY *ae; - for(ae = host->health_log.alarms; ae ;ae = ae->next) { - if (unlikely(ae->alarm_id == alarm_id && (!(chart_string == ae->chart && name_string == ae->name)))) { - ret = 0; - break; - } - } - - string_freez(chart_string); - string_freez(name_string); - - return ret; -} - -static 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; - - DICTIONARY *all_rrdcalcs = dictionary_create( - DICT_OPTION_NAME_LINK_DONT_CLONE | DICT_OPTION_VALUE_LINK_DONT_CLONE | DICT_OPTION_DONT_OVERWRITE_VALUE); - RRDCALC *rc; - foreach_rrdcalc_in_rrdhost_read(host, rc) { - dictionary_set(all_rrdcalcs, rrdcalc_name(rc), rc, sizeof(*rc)); - } - foreach_rrdcalc_in_rrdhost_done(rc); - - 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 = 33, 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.", rrdhost_hostname(host), line, filename, max_entries); - break; - } - } - else s++; - } - - if(likely(*pointers[0] == 'L')) - continue; - - if(likely(*pointers[0] == 'U' || *pointers[0] == 'A')) { - ALARM_ENTRY *ae = NULL; - - if(entries < 27) { - error("HEALTH [%s]: line %zu of file '%s' should have at least 27 entries, but it has %d. Ignoring it.", rrdhost_hostname(host), 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.", rrdhost_hostname(host), 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.", rrdhost_hostname(host), line, filename, alarm_id, pointers[3]); - errored++; - continue; - } - - // Check if we got last_repeat field - time_t last_repeat = 0; - if(entries > 27) { - char* alarm_name = pointers[13]; - last_repeat = (time_t)strtoul(pointers[27], NULL, 16); - - rc = dictionary_get(all_rrdcalcs, alarm_name); - if(unlikely(rc)) { - if (rrdcalc_isrepeating(rc)) { - rc->last_repeat = last_repeat; - // We iterate through repeating alarm entries only to - // find the latest last_repeat timestamp. Otherwise, - // there is no need to keep them in memory. - 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." - , rrdhost_hostname(host), 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." - , rrdhost_hostname(host), 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 mismatch - //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; - if (!is_valid_alarm_id(host, pointers[14], pointers[13], alarm_id)) { - STRING *chart = string_strdupz(pointers[14]); - STRING *name = string_strdupz(pointers[13]); - alarm_id = rrdcalc_get_unique_id(host, chart, name, NULL); - string_freez(chart); - string_freez(name); - } - 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); - - string_freez(ae->name); - ae->name = string_strdupz(pointers[13]); - - string_freez(ae->chart); - ae->chart = string_strdupz(pointers[14]); - - string_freez(ae->family); - ae->family = string_strdupz(pointers[15]); - - string_freez(ae->exec); - ae->exec = string_strdupz(pointers[16]); - - string_freez(ae->recipient); - ae->recipient = string_strdupz(pointers[17]); - - string_freez(ae->source); - ae->source = string_strdupz(pointers[18]); - - string_freez(ae->units); - ae->units = string_strdupz(pointers[19]); - - string_freez(ae->info); - ae->info = string_strdupz(pointers[20]); - - 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]); - - ae->last_repeat = last_repeat; - - if (likely(entries > 30)) { - string_freez(ae->classification); - ae->classification = string_strdupz(pointers[28]); - - string_freez(ae->component); - ae->component = string_strdupz(pointers[29]); - - string_freez(ae->type); - ae->type = string_strdupz(pointers[30]); - } - - char value_string[100 + 1]; - string_freez(ae->old_value_string); - string_freez(ae->new_value_string); - ae->old_value_string = string_strdupz(format_value_and_unit(value_string, 100, ae->old_value, ae_units(ae), -1)); - ae->new_value_string = string_strdupz(format_value_and_unit(value_string, 100, ae->new_value, ae_units(ae), -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; - sql_health_alarm_log_insert(host, ae); - loaded++; - } - else { - sql_health_alarm_log_update(host, ae); - 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').", rrdhost_hostname(host), line, filename, pointers[0]); - errored++; - } - } - - netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock); - - dictionary_destroy(all_rrdcalcs); - all_rrdcalcs = NULL; - - 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; - if (unlikely(!host->health_log.next_alarm_id || host->health_log.next_alarm_id <= host->health_max_alarm_id)) - 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", rrdhost_hostname(host), 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", rrdhost_hostname(host), 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", rrdhost_hostname(host), host->health_log_filename); - else { - health_alarm_log_read(host, fp, host->health_log_filename); - fclose(fp); - } -} - - // ---------------------------------------------------------------------------- // health alarm log management |