273 lines
15 KiB
YAML
273 lines
15 KiB
YAML
---
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# Source: outline/charts/postgres-17-cluster/templates/prometheus-rule.yaml
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apiVersion: monitoring.coreos.com/v1
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kind: PrometheusRule
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metadata:
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name: outline-postgresql-17-alert-rules
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namespace: outline
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labels:
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helm.sh/chart: postgres-17-cluster-6.16.1
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app.kubernetes.io/name: outline-postgresql-17
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app.kubernetes.io/instance: outline
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app.kubernetes.io/part-of: outline
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app.kubernetes.io/version: "6.16.1"
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app.kubernetes.io/managed-by: Helm
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spec:
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groups:
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- name: cloudnative-pg/outline-postgresql-17
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rules:
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- alert: CNPGClusterBackendsWaitingWarning
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annotations:
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summary: CNPG Cluster a backend is waiting for longer than 5 minutes.
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description: |-
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Pod {{ $labels.pod }}
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has been waiting for longer than 5 minutes
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expr: |
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cnpg_backends_waiting_total > 300
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for: 1m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterDatabaseDeadlockConflictsWarning
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annotations:
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summary: CNPG Cluster has over 10 deadlock conflicts.
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description: |-
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There are over 10 deadlock conflicts in
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{{ $labels.pod }}
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expr: |
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cnpg_pg_stat_database_deadlocks > 10
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for: 1m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterHACritical
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annotations:
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summary: CNPG Cluster has no standby replicas!
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description: |-
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CloudNativePG Cluster "{{`{{`}} $labels.job {{`}}`}}" has no ready standby replicas. Your cluster at a severe
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risk of data loss and downtime if the primary instance fails.
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The primary instance is still online and able to serve queries, although connections to the `-ro` endpoint
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will fail. The `-r` endpoint os operating at reduced capacity and all traffic is being served by the main.
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This can happen during a normal fail-over or automated minor version upgrades in a cluster with 2 or less
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instances. The replaced instance may need some time to catch-up with the cluster primary instance.
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This alarm will be always trigger if your cluster is configured to run with only 1 instance. In this
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case you may want to silence it.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterHACritical.md
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expr: |
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max by (job) (cnpg_pg_replication_streaming_replicas{namespace="outline"} - cnpg_pg_replication_is_wal_receiver_up{namespace="outline"}) < 1
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for: 5m
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labels:
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severity: critical
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterHAWarning
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annotations:
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summary: CNPG Cluster less than 2 standby replicas.
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description: |-
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CloudNativePG Cluster "{{`{{`}} $labels.job {{`}}`}}" has only {{`{{`}} $value {{`}}`}} standby replicas, putting
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your cluster at risk if another instance fails. The cluster is still able to operate normally, although
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the `-ro` and `-r` endpoints operate at reduced capacity.
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This can happen during a normal fail-over or automated minor version upgrades. The replaced instance may
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need some time to catch-up with the cluster primary instance.
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This alarm will be constantly triggered if your cluster is configured to run with less than 3 instances.
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In this case you may want to silence it.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterHAWarning.md
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expr: |
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max by (job) (cnpg_pg_replication_streaming_replicas{namespace="outline"} - cnpg_pg_replication_is_wal_receiver_up{namespace="outline"}) < 2
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for: 5m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterHighConnectionsCritical
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annotations:
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summary: CNPG Instance maximum number of connections critical!
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" instance {{`{{`}} $labels.pod {{`}}`}} is using {{`{{`}} $value {{`}}`}}% of
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the maximum number of connections.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterHighConnectionsCritical.md
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expr: |
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sum by (pod) (cnpg_backends_total{namespace="outline", pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}) / max by (pod) (cnpg_pg_settings_setting{name="max_connections", namespace="outline", pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}) * 100 > 95
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for: 5m
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labels:
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severity: critical
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterHighConnectionsWarning
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annotations:
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summary: CNPG Instance is approaching the maximum number of connections.
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" instance {{`{{`}} $labels.pod {{`}}`}} is using {{`{{`}} $value {{`}}`}}% of
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the maximum number of connections.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterHighConnectionsWarning.md
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expr: |
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sum by (pod) (cnpg_backends_total{namespace="outline", pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}) / max by (pod) (cnpg_pg_settings_setting{name="max_connections", namespace="outline", pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}) * 100 > 80
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for: 5m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterHighReplicationLag
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annotations:
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summary: CNPG Cluster high replication lag
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" is experiencing a high replication lag of
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{{`{{`}} $value {{`}}`}}ms.
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High replication lag indicates network issues, busy instances, slow queries or suboptimal configuration.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterHighReplicationLag.md
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expr: |
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max(cnpg_pg_replication_lag{namespace="outline",pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}) * 1000 > 1000
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for: 5m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterInstancesOnSameNode
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annotations:
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summary: CNPG Cluster instances are located on the same node.
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" has {{`{{`}} $value {{`}}`}}
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instances on the same node {{`{{`}} $labels.node {{`}}`}}.
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A failure or scheduled downtime of a single node will lead to a potential service disruption and/or data loss.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterInstancesOnSameNode.md
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expr: |
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count by (node) (kube_pod_info{namespace="outline", pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}) > 1
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for: 5m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterLongRunningTransactionWarning
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annotations:
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summary: CNPG Cluster query is taking longer than 5 minutes.
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description: |-
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CloudNativePG Cluster Pod {{ $labels.pod }}
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is taking more than 5 minutes (300 seconds) for a query.
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expr: |-
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cnpg_backends_max_tx_duration_seconds > 300
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for: 1m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterLowDiskSpaceCritical
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annotations:
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summary: CNPG Instance is running out of disk space!
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" is running extremely low on disk space. Check attached PVCs!
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterLowDiskSpaceCritical.md
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expr: |
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max(max by(persistentvolumeclaim) (1 - kubelet_volume_stats_available_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"} / kubelet_volume_stats_capacity_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"})) > 0.9 OR
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max(max by(persistentvolumeclaim) (1 - kubelet_volume_stats_available_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-wal"} / kubelet_volume_stats_capacity_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-wal"})) > 0.9 OR
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max(sum by (namespace,persistentvolumeclaim) (kubelet_volume_stats_used_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-tbs.*"})
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/
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sum by (namespace,persistentvolumeclaim) (kubelet_volume_stats_capacity_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-tbs.*"})
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*
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on(namespace, persistentvolumeclaim) group_left(volume)
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kube_pod_spec_volumes_persistentvolumeclaims_info{pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}
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) > 0.9
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for: 5m
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labels:
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severity: critical
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterLowDiskSpaceWarning
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annotations:
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summary: CNPG Instance is running out of disk space.
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" is running low on disk space. Check attached PVCs.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterLowDiskSpaceWarning.md
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expr: |
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max(max by(persistentvolumeclaim) (1 - kubelet_volume_stats_available_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"} / kubelet_volume_stats_capacity_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"})) > 0.7 OR
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max(max by(persistentvolumeclaim) (1 - kubelet_volume_stats_available_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-wal"} / kubelet_volume_stats_capacity_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-wal"})) > 0.7 OR
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max(sum by (namespace,persistentvolumeclaim) (kubelet_volume_stats_used_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-tbs.*"})
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/
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sum by (namespace,persistentvolumeclaim) (kubelet_volume_stats_capacity_bytes{namespace="outline", persistentvolumeclaim=~"outline-postgresql-17-cluster-([1-9][0-9]*)$-tbs.*"})
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*
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on(namespace, persistentvolumeclaim) group_left(volume)
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kube_pod_spec_volumes_persistentvolumeclaims_info{pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}
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) > 0.7
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for: 5m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterOffline
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annotations:
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summary: CNPG Cluster has no running instances!
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" has no ready instances.
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Having an offline cluster means your applications will not be able to access the database, leading to
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potential service disruption and/or data loss.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterOffline.md
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expr: |
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(count(cnpg_collector_up{namespace="outline",pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"}) OR on() vector(0)) == 0
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for: 5m
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labels:
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severity: critical
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterPGDatabaseXidAgeWarning
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annotations:
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summary: CNPG Cluster has a number of transactions from the frozen XID to the current one.
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description: |-
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Over 300,000,000 transactions from frozen xid
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on pod {{ $labels.pod }}
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expr: |
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cnpg_pg_database_xid_age > 300000000
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for: 1m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterPGReplicationWarning
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annotations:
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summary: CNPG Cluster standby is lagging behind the primary.
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description: |-
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Standby is lagging behind by over 300 seconds (5 minutes)
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expr: |
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cnpg_pg_replication_lag > 300
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for: 1m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterReplicaFailingReplicationWarning
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annotations:
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summary: CNPG Cluster has a replica is failing to replicate.
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description: |-
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Replica {{ $labels.pod }}
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is failing to replicate
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expr: |
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cnpg_pg_replication_in_recovery > cnpg_pg_replication_is_wal_receiver_up
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for: 1m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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- alert: CNPGClusterZoneSpreadWarning
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annotations:
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summary: CNPG Cluster instances in the same zone.
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description: |-
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CloudNativePG Cluster "outline/outline-postgresql-17-cluster" has instances in the same availability zone.
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A disaster in one availability zone will lead to a potential service disruption and/or data loss.
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runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterZoneSpreadWarning.md
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expr: |
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3 > count(count by (label_topology_kubernetes_io_zone) (kube_pod_info{namespace="outline", pod=~"outline-postgresql-17-cluster-([1-9][0-9]*)$"} * on(node,instance) group_left(label_topology_kubernetes_io_zone) kube_node_labels)) < 3
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for: 5m
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labels:
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severity: warning
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namespace: outline
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cnpg_cluster: outline-postgresql-17-cluster
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