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Posted to commits@cassandra.apache.org by "Yuki Morishita (JIRA)" <ji...@apache.org> on 2015/08/28 04:12:46 UTC

[jira] [Assigned] (CASSANDRA-10099) Improve concurrency in CompactionStrategyManager

     [ https://issues.apache.org/jira/browse/CASSANDRA-10099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yuki Morishita reassigned CASSANDRA-10099:
------------------------------------------

    Assignee: Yuki Morishita

> 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: Yuki Morishita
>             Fix For: 3.x
>
>
> 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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