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https://issues.apache.org/jira/browse/CASSANDRA-20499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ling Mao reassigned CASSANDRA-20499:
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Assignee: Ling Mao
> add metrics about apply, fileSize and throttle to hinted handoff
> ----------------------------------------------------------------
>
> Key: CASSANDRA-20499
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20499
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Observability/Metrics
> Reporter: Ling Mao
> Assignee: Ling Mao
> Priority: Normal
> Fix For: 5.0.x
>
>
> Although Cassandra already exposes metrics related to hinted handoff, this PR
> enhances observability by introducing additional metrics to provide deeper
> insights into its behavior.
> This PR introduces the following new metrics:
>
> {code:java}
> The total size (in bytes) of hint files stored on the current node.
> max(cassandra_hintsservice_hintsfilesize) by (instance)
> A counter tracking the number of hints being replayed by the current node.
> max(cassandra_hintsservice_hintsapplysucceeded_count) by (instance)
> max(cassandra_hintsservice_hintsapplyfailed_count) by (instance)
> The current node's hint handoff throttle consumption and how close it is to
> reaching the throttle limit(hinted_handoff_throttle_in_kb).
> rate(cassandra_hintsservice_hintsthrottle_count{instance=~"$instance"}[1m]) /
> 1024
> {code}
>
> A Grafana preview is included in the JIRA ticket.
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