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Posted to commits@cassandra.apache.org by "Prateek Agarwal (JIRA)" <ji...@apache.org> on 2016/09/14 22:57:21 UTC
[jira] [Commented] (CASSANDRA-10099) Improve concurrency in
CompactionStrategyManager
[ https://issues.apache.org/jira/browse/CASSANDRA-10099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491682#comment-15491682 ]
Prateek Agarwal commented on CASSANDRA-10099:
---------------------------------------------
[~krummas] We are facing the same issue with Cassandra 2.2.5. Was curious if the same patch can be backported to our 2.2 version?
> Improve concurrency in CompactionStrategyManager
> ------------------------------------------------
>
> Key: CASSANDRA-10099
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10099
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Yuki Morishita
> Assignee: Marcus Eriksson
> Labels: compaction, lcs
> Fix For: 3.6
>
>
> Continue discussion from CASSANDRA-9882.
> CompactionStrategyManager(WrappingCompactionStrategy for <3.0) tracks SSTable changes mainly for separating repaired / unrepaired SSTables (+ LCS manages level).
> This is blocking operation, and can lead to block of flush etc. when determining next background task takes longer.
> Explore the way to mitigate this concurrency issue.
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