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https://issues.apache.org/jira/browse/CASSANDRA-16161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17213512#comment-17213512
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Cameron Zemek commented on CASSANDRA-16161:
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This could almost be classified as a bug. In conf/cassandra.yaml is states for
compaction_throughput_mb_per_sec: "Note that this account for all types of
compaction, including validation compaction"
Which makes me lean to having a shared throttle.
> Validation Compactions causing Java GC pressure
> -----------------------------------------------
>
> Key: CASSANDRA-16161
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16161
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Compaction, Local/Config, Tool/nodetool
> Reporter: Cameron Zemek
> Assignee: Cameron Zemek
> Priority: Normal
> Fix For: 3.11.x, 3.11.8
>
> Attachments: 16161.patch
>
>
> Validation Compactions are not rate limited which can cause Java GC pressure
> and result in spikes in latency.
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