CassandraCacheHitRateKeyCache

CassandraCacheHitRateKeyCache #

Key cache hit rate is below 85%

Alert Rule
alert: CassandraCacheHitRateKeyCache
annotations:
  description: |-
    Key cache hit rate is below 85%
      VALUE = {{ $value }}
      LABELS = {{ $labels }}    
  runbook: https://srerun.github.io/prometheus-alerts/runbooks/criteo-cassandra-exporter/cassandracachehitratekeycache/
  summary: Cassandra cache hit rate key cache (instance {{ $labels.instance }})
expr: cassandra_stats{name="org:apache:cassandra:metrics:cache:keycache:hitrate:value"}
  < .85
for: 2m
labels:
  severity: critical

Meaning #

Impact #

Diagnosis #

Mitigation #