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281 lines
12 KiB
281 lines
12 KiB
{
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prometheusAlerts+:: {
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groups+: [
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{
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name: 'prometheus',
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rules: [
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{
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alert: 'PrometheusBadConfig',
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expr: |||
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# Without max_over_time, failed scrapes could create false negatives, see
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# https://www.robustperception.io/alerting-on-gauges-in-prometheus-2-0 for details.
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max_over_time(prometheus_config_last_reload_successful{%(prometheusSelector)s}[5m]) == 0
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||| % $._config,
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'for': '10m',
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labels: {
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severity: 'critical',
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},
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annotations: {
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summary: 'Failed Prometheus configuration reload.',
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description: 'Prometheus %(prometheusName)s has failed to reload its configuration.' % $._config,
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},
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},
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{
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alert: 'PrometheusNotificationQueueRunningFull',
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expr: |||
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# Without min_over_time, failed scrapes could create false negatives, see
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# https://www.robustperception.io/alerting-on-gauges-in-prometheus-2-0 for details.
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(
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predict_linear(prometheus_notifications_queue_length{%(prometheusSelector)s}[5m], 60 * 30)
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>
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min_over_time(prometheus_notifications_queue_capacity{%(prometheusSelector)s}[5m])
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)
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus alert notification queue predicted to run full in less than 30m.',
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description: 'Alert notification queue of Prometheus %(prometheusName)s is running full.' % $._config,
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},
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},
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{
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alert: 'PrometheusErrorSendingAlertsToSomeAlertmanagers',
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expr: |||
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(
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rate(prometheus_notifications_errors_total{%(prometheusSelector)s}[5m])
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/
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rate(prometheus_notifications_sent_total{%(prometheusSelector)s}[5m])
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)
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* 100
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> 1
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus has encountered more than 1% errors sending alerts to a specific Alertmanager.',
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description: '{{ printf "%%.1f" $value }}%% errors while sending alerts from Prometheus %(prometheusName)s to Alertmanager {{$labels.alertmanager}}.' % $._config,
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},
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},
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{
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alert: 'PrometheusErrorSendingAlertsToAnyAlertmanager',
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expr: |||
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min without(alertmanager) (
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rate(prometheus_notifications_errors_total{%(prometheusSelector)s}[5m])
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/
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rate(prometheus_notifications_sent_total{%(prometheusSelector)s}[5m])
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)
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* 100
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> 3
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'critical',
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},
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annotations: {
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summary: 'Prometheus encounters more than 3% errors sending alerts to any Alertmanager.',
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description: '{{ printf "%%.1f" $value }}%% minimum errors while sending alerts from Prometheus %(prometheusName)s to any Alertmanager.' % $._config,
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},
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},
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{
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alert: 'PrometheusNotConnectedToAlertmanagers',
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expr: |||
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# Without max_over_time, failed scrapes could create false negatives, see
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# https://www.robustperception.io/alerting-on-gauges-in-prometheus-2-0 for details.
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max_over_time(prometheus_notifications_alertmanagers_discovered{%(prometheusSelector)s}[5m]) < 1
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||| % $._config,
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'for': '10m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus is not connected to any Alertmanagers.',
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description: 'Prometheus %(prometheusName)s is not connected to any Alertmanagers.' % $._config,
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},
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},
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{
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alert: 'PrometheusTSDBReloadsFailing',
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expr: |||
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increase(prometheus_tsdb_reloads_failures_total{%(prometheusSelector)s}[3h]) > 0
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||| % $._config,
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'for': '4h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus has issues reloading blocks from disk.',
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description: 'Prometheus %(prometheusName)s has detected {{$value | humanize}} reload failures over the last 3h.' % $._config,
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},
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},
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{
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alert: 'PrometheusTSDBCompactionsFailing',
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expr: |||
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increase(prometheus_tsdb_compactions_failed_total{%(prometheusSelector)s}[3h]) > 0
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||| % $._config,
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'for': '4h',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus has issues compacting blocks.',
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description: 'Prometheus %(prometheusName)s has detected {{$value | humanize}} compaction failures over the last 3h.' % $._config,
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},
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},
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{
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alert: 'PrometheusNotIngestingSamples',
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expr: |||
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rate(prometheus_tsdb_head_samples_appended_total{%(prometheusSelector)s}[5m]) <= 0
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||| % $._config,
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'for': '10m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus is not ingesting samples.',
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description: 'Prometheus %(prometheusName)s is not ingesting samples.' % $._config,
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},
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},
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{
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alert: 'PrometheusDuplicateTimestamps',
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expr: |||
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rate(prometheus_target_scrapes_sample_duplicate_timestamp_total{%(prometheusSelector)s}[5m]) > 0
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||| % $._config,
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'for': '10m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus is dropping samples with duplicate timestamps.',
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description: 'Prometheus %(prometheusName)s is dropping {{ printf "%%.4g" $value }} samples/s with different values but duplicated timestamp.' % $._config,
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},
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},
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{
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alert: 'PrometheusOutOfOrderTimestamps',
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expr: |||
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rate(prometheus_target_scrapes_sample_out_of_order_total{%(prometheusSelector)s}[5m]) > 0
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||| % $._config,
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'for': '10m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus drops samples with out-of-order timestamps.',
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description: 'Prometheus %(prometheusName)s is dropping {{ printf "%%.4g" $value }} samples/s with timestamps arriving out of order.' % $._config,
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},
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},
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{
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alert: 'PrometheusRemoteStorageFailures',
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expr: |||
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(
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rate(prometheus_remote_storage_failed_samples_total{%(prometheusSelector)s}[5m])
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/
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(
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rate(prometheus_remote_storage_failed_samples_total{%(prometheusSelector)s}[5m])
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+
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rate(prometheus_remote_storage_succeeded_samples_total{%(prometheusSelector)s}[5m])
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)
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)
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* 100
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> 1
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'critical',
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},
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annotations: {
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summary: 'Prometheus fails to send samples to remote storage.',
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description: 'Prometheus %(prometheusName)s failed to send {{ printf "%%.1f" $value }}%% of the samples to {{ $labels.remote_name}}:{{ $labels.url }}' % $._config,
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},
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},
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{
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alert: 'PrometheusRemoteWriteBehind',
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expr: |||
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# Without max_over_time, failed scrapes could create false negatives, see
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# https://www.robustperception.io/alerting-on-gauges-in-prometheus-2-0 for details.
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(
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max_over_time(prometheus_remote_storage_highest_timestamp_in_seconds{%(prometheusSelector)s}[5m])
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- on(job, instance) group_right
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max_over_time(prometheus_remote_storage_queue_highest_sent_timestamp_seconds{%(prometheusSelector)s}[5m])
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)
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> 120
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'critical',
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},
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annotations: {
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summary: 'Prometheus remote write is behind.',
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description: 'Prometheus %(prometheusName)s remote write is {{ printf "%%.1f" $value }}s behind for {{ $labels.remote_name}}:{{ $labels.url }}.' % $._config,
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},
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},
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{
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alert: 'PrometheusRemoteWriteDesiredShards',
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expr: |||
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# Without max_over_time, failed scrapes could create false negatives, see
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# https://www.robustperception.io/alerting-on-gauges-in-prometheus-2-0 for details.
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(
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max_over_time(prometheus_remote_storage_shards_desired{%(prometheusSelector)s}[5m])
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>
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max_over_time(prometheus_remote_storage_shards_max{%(prometheusSelector)s}[5m])
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)
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus remote write desired shards calculation wants to run more than configured max shards.',
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description: 'Prometheus %(prometheusName)s remote write desired shards calculation wants to run {{ $value }} shards for queue {{ $labels.remote_name}}:{{ $labels.url }}, which is more than the max of {{ printf `prometheus_remote_storage_shards_max{instance="%%s",%(prometheusSelector)s}` $labels.instance | query | first | value }}.' % $._config,
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},
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},
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{
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alert: 'PrometheusRuleFailures',
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expr: |||
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increase(prometheus_rule_evaluation_failures_total{%(prometheusSelector)s}[5m]) > 0
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'critical',
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},
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annotations: {
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summary: 'Prometheus is failing rule evaluations.',
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description: 'Prometheus %(prometheusName)s has failed to evaluate {{ printf "%%.0f" $value }} rules in the last 5m.' % $._config,
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},
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},
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{
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alert: 'PrometheusMissingRuleEvaluations',
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expr: |||
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increase(prometheus_rule_group_iterations_missed_total{%(prometheusSelector)s}[5m]) > 0
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus is missing rule evaluations due to slow rule group evaluation.',
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description: 'Prometheus %(prometheusName)s has missed {{ printf "%%.0f" $value }} rule group evaluations in the last 5m.' % $._config,
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},
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},
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{
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alert: 'PrometheusTargetLimitHit',
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expr: |||
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increase(prometheus_target_scrape_pool_exceeded_target_limit_total{%(prometheusSelector)s}[5m]) > 0
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||| % $._config,
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'for': '15m',
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labels: {
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severity: 'warning',
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},
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annotations: {
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summary: 'Prometheus has dropped targets because some scrape configs have exceeded the targets limit.',
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description: 'Prometheus %(prometheusName)s has dropped {{ printf "%%.0f" $value }} targets because the number of targets exceeded the configured target_limit.' % $._config,
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},
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},
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],
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},
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],
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},
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}
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