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https://issues.apache.org/jira/browse/SPARK-25386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xianyang Liu updated SPARK-25386:
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Summary: Don't need to synchronize the IndexShuffleBlockResolver for each
writeIndexFileAndCommit call (was: Don't need to synchronize the
IndexShuffleBlockResolver for each writeIndexFileAndCommit)
> 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.
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