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https://issues.apache.org/jira/browse/CASSANDRA-7745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuki Morishita updated CASSANDRA-7745:
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Component/s: Compaction
> Background LCS compactions stall with pending compactions remaining
> -------------------------------------------------------------------
>
> Key: CASSANDRA-7745
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7745
> Project: Cassandra
> Issue Type: Bug
> Components: Compaction
> Reporter: J.B. Langston
> Assignee: Yuki Morishita
> Priority: Minor
> Fix For: 1.2.19, 2.0.10, 2.1.0
>
> Attachments: 7745-1.2.txt
>
>
> We've hit a scenario where background LCS compactions will stall.
> compactionstats output shows hundreds of pending compactions but none active.
> The thread dumps show no CompactionExecutor threads running, and no
> compaction activity is being logged to system.log. This seems to happen when
> there are no writes to the node. There are no flushes logged either, and when
> writes resume, compactions seem to resume as well, but still don't ever get
> to 0.
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