CassandraClientRequestUnavailableRead

CassandraClientRequestUnavailableRead #

Read failures have occurred because too many nodes are unavailable

Alert Rule
alert: CassandraClientRequestUnavailableRead
annotations:
  description: |-
    Read failures have occurred because too many nodes are unavailable
      VALUE = {{ $value }}
      LABELS = {{ $labels }}    
  runbook: https://srerun.github.io/prometheus-alerts/runbooks/criteo-cassandra-exporter/cassandraclientrequestunavailableread/
  summary: Cassandra client request unavailable read (instance {{ $labels.instance
    }})
expr: changes(cassandra_stats{name="org:apache:cassandra:metrics:clientrequest:read:unavailables:count"}[1m])
  > 0
for: 0m
labels:
  severity: critical

Meaning #

Impact #

Diagnosis #

Mitigation #