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Merge pull request #150 from samber/alerts-cassadnra

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Adding Cassandra alerts
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Samuel Berthe 2020-10-11 19:57:57 +02:00 committed by GitHub
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_data/rules.yml
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@ -802,6 +802,30 @@ groups:
description: Something is going wrong with cassandra storage
query: 'changes(cassandra_stats{name="org:apache:cassandra:metrics:storage:exceptions:count"}[1m]) > 1'
severity: critical
- name: Cassandra tombstone dump
description: Too much tombstones scanned in queries
query: 'cassandra_stats{name="org:apache:cassandra:metrics:table:tombstonescannedhistogram:99thpercentile"} > 1000'
severity: critical
- name: Cassandra client request unvailable write
description: Write failures have occurred because too many nodes are unavailable
query: 'changes(cassandra_stats{name="org:apache:cassandra:metrics:clientrequest:write:unavailables:count"}[1m]) > 0'
severity: critical
- name: Cassandra client request unvailable read
description: Read failures have occurred because too many nodes are unavailable
query: 'changes(cassandra_stats{name="org:apache:cassandra:metrics:clientrequest:read:unavailables:count"}[1m]) > 0'
severity: critical
- name: Cassandra client request write failure
description: A lot of write failures encountered. A write failure is a non-timeout exception encountered during a write request. Examine the reason map to find to the root cause. The most common cause for this type of error is when batch sizes are too large.
query: 'increase(cassandra_stats{name="org:apache:cassandra:metrics:clientrequest:write:failures:oneminuterate"}[1m]) > 0'
severity: critical
- name: Cassandra client request read failure
description: A lot of read failures encountered. A read failure is a non-timeout exception encountered during a read request. Examine the reason map to find to the root cause. The most common cause for this type of error is when batch sizes are too large.
query: 'increase(cassandra_stats{name="org:apache:cassandra:metrics:clientrequest:read:failures:oneminuterate"}[1m]) > 0'
severity: critical
- name: Cassandra cache hit rate key cache
description: Key cache hit rate is below 85%
query: 'cassandra_stats{name="org:apache:cassandra:metrics:cache:keycache:hitrate:value"} < .85'
severity: critical
- name: Zookeeper
exporters: