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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2018/09/11 13:56:00 UTC
[jira] [Resolved] (SPARK-25386) Don't need to synchronize the
IndexShuffleBlockResolver for each writeIndexFileAndCommit call
[ https://issues.apache.org/jira/browse/SPARK-25386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen resolved SPARK-25386.
-------------------------------
Resolution: Won't Fix
> Don't need to synchronize the IndexShuffleBlockResolver for each writeIndexFileAndCommit call
> ---------------------------------------------------------------------------------------------
>
> Key: SPARK-25386
> URL: https://issues.apache.org/jira/browse/SPARK-25386
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.3.1
> Reporter: Xianyang Liu
> Priority: Major
>
> Now, we need synchronize the instance of IndexShuffleBlockResolver in order to make the commit check and tmp file rename atomically. This can be improved. We could synchronize a lock which is different for each `shuffleId + mapId` instead of synchronize the indexShuffleBlockResolver for each writeIndexFileAndCommit call.
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