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health_json.c
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// SPDX-License-Identifier: GPL-3.0-or-later
#include "health.h"
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\":\"", prefix, label);
buffer_strcat_htmlescape(wb, value);
buffer_strcat(wb, "\"");
buffer_strcat(wb, 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\"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"
"\t\t\"value_string\": \"%s\",\n"
"\t\t\"old_value_string\": \"%s\",\n"
"\t\t\"last_repeat\": \"%lu\",\n"
"\t\t\"silenced\": \"%s\",\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:host->health_default_exec
, ae->recipient?ae->recipient:host->health_default_recipient
, ae->exec_code
, ae->source
, ae->units?ae->units:""
, (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
, ae->new_value_string
, ae->old_value_string
, (unsigned long)ae->last_repeat
, (ae->flags & HEALTH_ENTRY_FLAG_SILENCED)?"true":"false"
);
health_string2json(wb, "\t\t", "info", ae->info?ae->info:"", ",\n");
if(unlikely(ae->flags & HEALTH_ENTRY_FLAG_NO_CLEAR_NOTIFICATION)) {
buffer_strcat(wb, "\t\t\"no_clear_notification\": true,\n");
}
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) {
netdata_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");
netdata_rwlock_unlock(&host->health_log.alarm_log_rwlock);
}
static inline void health_rrdcalc2json_nolock(RRDHOST *host, BUFFER *wb, RRDCALC *rc) {
char value_string[100 + 1];
format_value_and_unit(value_string, 100, rc->value, rc->units, -1);
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\"disabled\": %s,\n"
"\t\t\t\"silenced\": %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"
"\t\t\t\"warn_repeat_every\": \"%u\",\n"
"\t\t\t\"crit_repeat_every\": \"%u\",\n"
"\t\t\t\"value_string\": \"%s\",\n"
"\t\t\t\"last_repeat\": \"%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->rrdcalc_flags & RRDCALC_FLAG_DISABLED)?"true":"false"
, (rc->rrdcalc_flags & RRDCALC_FLAG_SILENCED)?"true":"false"
, rc->exec?rc->exec:host->health_default_exec
, rc->recipient?rc->recipient:host->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
, rc->warn_repeat_every
, rc->crit_repeat_every
, value_string
, (unsigned long)rc->last_repeat
);
if(unlikely(rc->options & RRDCALC_FLAG_NO_CLEAR_NOTIFICATION)) {
buffer_strcat(wb, "\t\t\t\"no_clear_notification\": true,\n");
}
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_aggregate_alarms(RRDHOST *host, BUFFER *wb, BUFFER* contexts, RRDCALC_STATUS status) {
RRDCALC *rc;
int numberOfAlarms = 0;
char *tok = NULL;
char *p = NULL;
rrdhost_rdlock(host);
if (contexts) {
p = (char*)buffer_tostring(contexts);
while(p && *p && (tok = mystrsep(&p, ", |"))) {
if(!*tok) continue;
for(rc = host->alarms; rc ; rc = rc->next) {
if(unlikely(!rc->rrdset || !rc->rrdset->last_collected_time.tv_sec))
continue;
if(unlikely(rc->rrdset && rc->rrdset->hash_context == simple_hash(tok)
&& !strcmp(rc->rrdset->context, tok)
&& ((status==RRDCALC_STATUS_RAISED)?(rc->status >= RRDCALC_STATUS_WARNING):rc->status == status)))
numberOfAlarms++;
}
}
}
else {
for(rc = host->alarms; rc ; rc = rc->next) {
if(unlikely(!rc->rrdset || !rc->rrdset->last_collected_time.tv_sec))
continue;
if(unlikely((status==RRDCALC_STATUS_RAISED)?(rc->status >= RRDCALC_STATUS_WARNING):rc->status == status))
numberOfAlarms++;
}
}
buffer_sprintf(wb, "%d", numberOfAlarms);
rrdhost_unlock(host);
}
void health_alarms2json(RRDHOST *host, BUFFER *wb, int all) {
int i;
rrdhost_rdlock(host);
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,
host->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(host, 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);
buffer_strcat(wb, "\n\t}\n}\n");
rrdhost_unlock(host);
}