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From "Marcus Eriksson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7745) Background LCS compactions stall with pending compactions remaining
Date Wed, 13 Aug 2014 11:25:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14095368#comment-14095368
] 

Marcus Eriksson commented on CASSANDRA-7745:
--------------------------------------------

+1

> 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
>            Reporter: J.B. Langston
>            Assignee: Yuki Morishita
>             Fix For: 1.2.19, 2.0.11, 2.1 rc6
>
>         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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