infrastructure/ansible/plays/services/mimir/rules/prometheus.yaml

# {% raw %}

groups:
- name: EmbeddedExporter
  rules:
    - alert: PrometheusJobMissing
      expr: 'absent(up{job="prometheus"})'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus job missing (instance {{ $labels.instance }})
        description: "A Prometheus job has disappeared\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTargetMissing
      expr: 'up == 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus target missing (instance {{ $labels.instance }})
        description: "A Prometheus target has disappeared. An exporter might be crashed.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusAllTargetsMissing
      expr: 'sum by (job) (up) == 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus all targets missing (instance {{ $labels.instance }})
        description: "A Prometheus job does not have living target anymore.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTargetMissingWithWarmupTime
      expr: 'sum by (instance, job) ((up == 0) * on (instance) group_right(job) (node_time_seconds - node_boot_time_seconds > 600))'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus target missing with warmup time (instance {{ $labels.instance }})
        description: "Allow a job time to start up (10 minutes) before alerting that it's down.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusConfigurationReloadFailure
      expr: 'prometheus_config_last_reload_successful != 1'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus configuration reload failure (instance {{ $labels.instance }})
        description: "Prometheus configuration reload error\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTooManyRestarts
      expr: 'changes(process_start_time_seconds{job=~"prometheus|pushgateway|alertmanager"}[15m]) > 2'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus too many restarts (instance {{ $labels.instance }})
        description: "Prometheus has restarted more than twice in the last 15 minutes. It might be crashlooping.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    # - alert: PrometheusAlertmanagerJobMissing
    #   expr: 'absent(up{job="alertmanager"})'
    #   for: 0m
    #   labels:
    #     severity: warning
    #   annotations:
    #     summary: Prometheus AlertManager job missing (instance {{ $labels.instance }})
    #     description: "A Prometheus AlertManager job has disappeared\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusAlertmanagerConfigurationReloadFailure
      expr: 'alertmanager_config_last_reload_successful != 1'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus AlertManager configuration reload failure (instance {{ $labels.instance }})
        description: "AlertManager configuration reload error\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusAlertmanagerConfigNotSynced
      expr: 'count(count_values("config_hash", alertmanager_config_hash)) > 1'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus AlertManager config not synced (instance {{ $labels.instance }})
        description: "Configurations of AlertManager cluster instances are out of sync\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusAlertmanagerE2eDeadManSwitch
      expr: 'vector(1)'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus AlertManager E2E dead man switch (instance {{ $labels.instance }})
        description: "Prometheus DeadManSwitch is an always-firing alert. It's used as an end-to-end test of Prometheus through the Alertmanager.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    # - alert: PrometheusNotConnectedToAlertmanager
    #   expr: 'prometheus_notifications_alertmanagers_discovered < 1'
    #   for: 0m
    #   labels:
    #     severity: critical
    #   annotations:
    #     summary: Prometheus not connected to alertmanager (instance {{ $labels.instance }})
    #     description: "Prometheus cannot connect the alertmanager\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusRuleEvaluationFailures
      expr: 'increase(prometheus_rule_evaluation_failures_total[3m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus rule evaluation failures (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} rule evaluation failures, leading to potentially ignored alerts.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTemplateTextExpansionFailures
      expr: 'increase(prometheus_template_text_expansion_failures_total[3m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus template text expansion failures (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} template text expansion failures\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusRuleEvaluationSlow
      expr: 'prometheus_rule_group_last_duration_seconds > prometheus_rule_group_interval_seconds'
      for: 5m
      labels:
        severity: warning
      annotations:
        summary: Prometheus rule evaluation slow (instance {{ $labels.instance }})
        description: "Prometheus rule evaluation took more time than the scheduled interval. It indicates a slower storage backend access or too complex query.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusNotificationsBacklog
      expr: 'min_over_time(prometheus_notifications_queue_length[10m]) > 0'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus notifications backlog (instance {{ $labels.instance }})
        description: "The Prometheus notification queue has not been empty for 10 minutes\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusAlertmanagerNotificationFailing
      expr: 'rate(alertmanager_notifications_failed_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus AlertManager notification failing (instance {{ $labels.instance }})
        description: "Alertmanager is failing sending notifications\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    # - alert: PrometheusTargetEmpty
    #   expr: 'prometheus_sd_discovered_targets == 0'
    #   for: 0m
    #   labels:
    #     severity: critical
    #   annotations:
    #     summary: Prometheus target empty (instance {{ $labels.instance }})
    #     description: "Prometheus has no target in service discovery\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTargetScrapingSlow
      expr: 'prometheus_target_interval_length_seconds{quantile="0.9"} / on (interval, instance, job) prometheus_target_interval_length_seconds{quantile="0.5"} > 1.05'
      for: 5m
      labels:
        severity: warning
      annotations:
        summary: Prometheus target scraping slow (instance {{ $labels.instance }})
        description: "Prometheus is scraping exporters slowly since it exceeded the requested interval time. Your Prometheus server is under-provisioned.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusLargeScrape
      expr: 'increase(prometheus_target_scrapes_exceeded_sample_limit_total[10m]) > 10'
      for: 5m
      labels:
        severity: warning
      annotations:
        summary: Prometheus large scrape (instance {{ $labels.instance }})
        description: "Prometheus has many scrapes that exceed the sample limit\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTargetScrapeDuplicate
      expr: 'increase(prometheus_target_scrapes_sample_duplicate_timestamp_total[5m]) > 0'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus target scrape duplicate (instance {{ $labels.instance }})
        description: "Prometheus has many samples rejected due to duplicate timestamps but different values\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTsdbCheckpointCreationFailures
      expr: 'increase(prometheus_tsdb_checkpoint_creations_failed_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus TSDB checkpoint creation failures (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} checkpoint creation failures\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTsdbCheckpointDeletionFailures
      expr: 'increase(prometheus_tsdb_checkpoint_deletions_failed_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus TSDB checkpoint deletion failures (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} checkpoint deletion failures\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTsdbCompactionsFailed
      expr: 'increase(prometheus_tsdb_compactions_failed_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus TSDB compactions failed (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} TSDB compactions failures\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTsdbHeadTruncationsFailed
      expr: 'increase(prometheus_tsdb_head_truncations_failed_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus TSDB head truncations failed (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} TSDB head truncation failures\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTsdbReloadFailures
      expr: 'increase(prometheus_tsdb_reloads_failures_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus TSDB reload failures (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} TSDB reload failures\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTsdbWalCorruptions
      expr: 'increase(prometheus_tsdb_wal_corruptions_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus TSDB WAL corruptions (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} TSDB WAL corruptions\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTsdbWalTruncationsFailed
      expr: 'increase(prometheus_tsdb_wal_truncations_failed_total[1m]) > 0'
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Prometheus TSDB WAL truncations failed (instance {{ $labels.instance }})
        description: "Prometheus encountered {{ $value }} TSDB WAL truncation failures\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
    - alert: PrometheusTimeserieCardinality
      expr: 'label_replace(count by(__name__) ({__name__=~".+"}), "name", "$1", "__name__", "(.+)") > 10000'
      for: 0m
      labels:
        severity: warning
      annotations:
        summary: Prometheus timeserie cardinality (instance {{ $labels.instance }})
        description: "The \"{{ $labels.name }}\" timeserie cardinality is getting very high: {{ $value }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"

# {% endraw %}