mirror of
https://github.com/ryan4yin/nix-config.git
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263 lines
11 KiB
YAML
263 lines
11 KiB
YAML
groups:
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- name: PostgresExporter
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rules:
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- alert: PostgresqlDown
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expr: "pg_up == 0"
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Postgresql down (instance {{ $labels.instance }})
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description:
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"Postgresql instance is down\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlRestarted
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expr: "time() - pg_postmaster_start_time_seconds < 60"
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Postgresql restarted (instance {{ $labels.instance }})
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description: "Postgresql restarted\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlExporterError
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expr: "pg_exporter_last_scrape_error > 0"
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Postgresql exporter error (instance {{ $labels.instance }})
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description:
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"Postgresql exporter is showing errors. A query may be buggy in query.yaml\n VALUE = {{
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$value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlTableNotAutoVacuumed
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expr:
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"((pg_stat_user_tables_n_tup_del + pg_stat_user_tables_n_tup_upd +
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pg_stat_user_tables_n_tup_hot_upd) > pg_settings_autovacuum_vacuum_threshold) and (time()
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- pg_stat_user_tables_last_autovacuum) > 60 * 60 * 24 * 10"
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Postgresql table not auto vacuumed (instance {{ $labels.instance }})
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description:
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"Table {{ $labels.relname }} has not been auto vacuumed for 10 days\n VALUE = {{ $value
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}}\n LABELS = {{ $labels }}"
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- alert: PostgresqlTableNotAutoAnalyzed
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expr:
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"((pg_stat_user_tables_n_tup_del + pg_stat_user_tables_n_tup_upd +
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pg_stat_user_tables_n_tup_hot_upd) > pg_settings_autovacuum_analyze_threshold) and (time()
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- pg_stat_user_tables_last_autoanalyze) > 24 * 60 * 60 * 10"
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Postgresql table not auto analyzed (instance {{ $labels.instance }})
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description:
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"Table {{ $labels.relname }} has not been auto analyzed for 10 days\n VALUE = {{ $value
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}}\n LABELS = {{ $labels }}"
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- alert: PostgresqlTooManyConnections
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expr:
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"sum by (instance, job, server) (pg_stat_activity_count) > min by (instance, job, server)
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(pg_settings_max_connections * 0.8)"
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Postgresql too many connections (instance {{ $labels.instance }})
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description:
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"PostgreSQL instance has too many connections (> 80%).\n VALUE = {{ $value }}\n LABELS
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= {{ $labels }}"
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# - alert: PostgresqlNotEnoughConnections
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# expr: 'sum by (datname) (pg_stat_activity_count{datname!~"template.*|postgres"}) < 5'
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# for: 2m
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# labels:
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# severity: critical
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# annotations:
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# summary: Postgresql not enough connections (instance {{ $labels.instance }})
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# description:
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# "PostgreSQL instance should have more connections (> 5)\n VALUE = {{ $value
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# }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlDeadLocks
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expr: 'increase(pg_stat_database_deadlocks{datname!~"template.*|postgres"}[1m]) > 5'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Postgresql dead locks (instance {{ $labels.instance }})
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description: "PostgreSQL has dead-locks\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlHighRollbackRate
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expr:
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'sum by (namespace,datname)
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((rate(pg_stat_database_xact_rollback{datname!~"template.*|postgres",datid!="0"}[3m])) /
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((rate(pg_stat_database_xact_rollback{datname!~"template.*|postgres",datid!="0"}[3m])) +
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(rate(pg_stat_database_xact_commit{datname!~"template.*|postgres",datid!="0"}[3m])))) >
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0.02'
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for: 0m
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labels:
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severity: warning
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annotations:
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summary: Postgresql high rollback rate (instance {{ $labels.instance }})
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description:
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"Ratio of transactions being aborted compared to committed is > 2 %\n VALUE = {{ $value
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}}\n LABELS = {{ $labels }}"
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# - alert: PostgresqlCommitRateLow
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# expr:
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# 'increase(pg_stat_database_xact_commit{datname!~"template.*|postgres",datid!="0"}[5m]) < 5'
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# for: 2m
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# labels:
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# severity: critical
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# annotations:
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# summary: Postgresql commit rate low (instance {{ $labels.instance }})
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# description:
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# "Postgresql seems to be processing very few transactions\n VALUE = {{ $value
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# }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlLowXidConsumption
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expr: "rate(pg_txid_current[1m]) < 5"
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Postgresql low XID consumption (instance {{ $labels.instance }})
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description:
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"Postgresql seems to be consuming transaction IDs very slowly\n VALUE = {{ $value
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}}\n LABELS = {{ $labels }}"
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- alert: PostgresqlHighRateStatementTimeout
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expr: 'rate(postgresql_errors_total{type="statement_timeout"}[1m]) > 3'
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Postgresql high rate statement timeout (instance {{ $labels.instance }})
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description:
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"Postgres transactions showing high rate of statement timeouts\n VALUE = {{ $value
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}}\n LABELS = {{ $labels }}"
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- alert: PostgresqlHighRateDeadlock
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expr: 'increase(postgresql_errors_total{type="deadlock_detected"}[1m]) > 1'
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Postgresql high rate deadlock (instance {{ $labels.instance }})
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description:
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"Postgres detected deadlocks\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlUnusedReplicationSlot
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expr: "pg_replication_slots_active == 0"
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for: 1m
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labels:
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severity: warning
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annotations:
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summary: Postgresql unused replication slot (instance {{ $labels.instance }})
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description: "Unused Replication Slots\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlTooManyDeadTuples
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expr:
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"((pg_stat_user_tables_n_dead_tup > 10000) / (pg_stat_user_tables_n_live_tup +
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pg_stat_user_tables_n_dead_tup)) >= 0.1"
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Postgresql too many dead tuples (instance {{ $labels.instance }})
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description:
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"PostgreSQL dead tuples is too large\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlConfigurationChanged
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expr:
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'{__name__=~"pg_settings_.*"} != ON(__name__, instance)
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{__name__=~"pg_settings_([^t]|t[^r]|tr[^a]|tra[^n]|tran[^s]|trans[^a]|transa[^c]|transac[^t]|transact[^i]|transacti[^o]|transactio[^n]|transaction[^_]|transaction_[^r]|transaction_r[^e]|transaction_re[^a]|transaction_rea[^d]|transaction_read[^_]|transaction_read_[^o]|transaction_read_o[^n]|transaction_read_on[^l]|transaction_read_only[^y]).*"}
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OFFSET 5m'
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for: 0m
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labels:
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severity: info
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annotations:
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summary: Postgresql configuration changed (instance {{ $labels.instance }})
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description:
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"Postgres Database configuration change has occurred\n VALUE = {{ $value }}\n LABELS =
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{{ $labels }}"
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- alert: PostgresqlSslCompressionActive
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expr: "sum(pg_stat_ssl_compression) > 0"
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for: 0m
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labels:
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severity: critical
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annotations:
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summary: Postgresql SSL compression active (instance {{ $labels.instance }})
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description:
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"Database allows connections with SSL compression enabled. This may add significant
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jitter in replication delay. Replicas should turn off SSL compression via
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`sslcompression=0` in `recovery.conf`.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlTooManyLocksAcquired
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expr:
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"((sum (pg_locks_count)) / (pg_settings_max_locks_per_transaction *
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pg_settings_max_connections)) > 0.20"
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for: 2m
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labels:
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severity: critical
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annotations:
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summary: Postgresql too many locks acquired (instance {{ $labels.instance }})
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description:
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"Too many locks acquired on the database. If this alert happens frequently, we may need
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to increase the postgres setting max_locks_per_transaction.\n VALUE = {{ $value
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}}\n LABELS = {{ $labels }}"
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- alert: PostgresqlBloatIndexHigh(>80%)
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expr:
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"pg_bloat_btree_bloat_pct > 80 and on (idxname) (pg_bloat_btree_real_size > 100000000)"
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for: 1h
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labels:
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severity: warning
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annotations:
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summary: Postgresql bloat index high (> 80%) (instance {{ $labels.instance }})
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description:
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"The index {{ $labels.idxname }} is bloated. You should execute `REINDEX INDEX
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CONCURRENTLY {{ $labels.idxname }};`\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlBloatTableHigh(>80%)
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expr:
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"pg_bloat_table_bloat_pct > 80 and on (relname) (pg_bloat_table_real_size > 200000000)"
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for: 1h
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labels:
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severity: warning
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annotations:
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summary: Postgresql bloat table high (> 80%) (instance {{ $labels.instance }})
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description:
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"The table {{ $labels.relname }} is bloated. You should execute `VACUUM {{
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$labels.relname }};`\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: PostgresqlInvalidIndex
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expr: 'pg_general_index_info_pg_relation_size{indexrelname=~".*ccnew.*"}'
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for: 6h
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labels:
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severity: warning
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annotations:
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summary: Postgresql invalid index (instance {{ $labels.instance }})
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description:
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"The table {{ $labels.relname }} has an invalid index: {{ $labels.indexrelname }}. You
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should execute `DROP INDEX {{ $labels.indexrelname }};`\n VALUE = {{ $value
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}}\n LABELS = {{ $labels }}"
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- alert: PostgresqlReplicationLag
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expr: "pg_replication_lag_seconds > 5"
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for: 30s
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labels:
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severity: warning
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annotations:
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summary: Postgresql replication lag (instance {{ $labels.instance }})
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description:
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"The PostgreSQL replication lag is high (> 5s)\n VALUE = {{ $value }}\n LABELS = {{
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$labels }}"
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