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valinor/kubernetes/apps/fediverse/mastodon/app/cnpg/prometheusrule.yaml

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2023-08-13 12:13:53 -05:00
---
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
name: cloudnative-pg-rules
namespace: fediverse
labels:
prometheus: k8s
role: alert-rules
spec:
groups:
- name: cloudnative-pg.rules
rules:
- alert: LongRunningTransaction
annotations:
description: Pod {{ $labels.pod }} is taking more than 5 minutes (300 seconds) for a query.
summary: A query is taking longer than 5 minutes.
expr: |-
cnpg_backends_max_tx_duration_seconds > 300
for: 1m
labels:
severity: warning
- alert: BackendsWaiting
annotations:
description: Pod {{ $labels.pod }} has been waiting for longer than 5 minutes
summary: If a backend is waiting for longer than 5 minutes
expr: |-
cnpg_backends_waiting_total > 300
for: 1m
labels:
severity: warning
- alert: PGDatabase
annotations:
description: Over 150,000,000 transactions from frozen xid on pod {{ $labels.pod }}
summary: Number of transactions from the frozen XID to the current one
expr: |-
cnpg_pg_database_xid_age > 150000000
for: 1m
labels:
severity: warning
- alert: PGReplication
annotations:
description: Standby is lagging behind by over 300 seconds (5 minutes)
summary: The standby is lagging behind the primary
expr: |-
cnpg_pg_replication_lag > 300
for: 1m
labels:
severity: warning
- alert: LastFailedArchiveTime
annotations:
description: Archiving failed for {{ $labels.pod }}
summary: Checks the last time archiving failed. Will be -1 when it has not failed.
expr: |-
delta(cnpg_pg_stat_archiver_last_failed_time[5m]) > 0
for: 1m
labels:
severity: warning
- alert: DatabaseDeadlockConflicts
annotations:
description: There are over 10 deadlock conflicts in {{ $labels.pod }}
summary: Checks the number of database conflicts
expr: |-
cnpg_pg_stat_database_deadlocks > 10
for: 1m
labels:
severity: warning