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Posted to issues@spark.apache.org by "jinhai (Jira)" <ji...@apache.org> on 2021/09/26 07:19:00 UTC
[jira] [Updated] (SPARK-36855) Uniformly execute the
mergeContinuousShuffleBlockIdsIfNeeded method first
[ https://issues.apache.org/jira/browse/SPARK-36855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
jinhai updated SPARK-36855:
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Description: In the ShuffleBlockFetcherIterator.partitionBlocksByFetchMode method, both local and host-local execute the mergeContinuousShuffleBlockIdsIfNeeded method first, but remote blocks executes the method many times in the createFetchRequests method. Can merge blocks be executed only once in advance? (was: In the ShuffleBlockFetcherIterator.partitionBlocksByFetchMode method, both local and host-local execute the mergeContinuousShuffleBlockIdsIfNeeded method first, but remote blocks executes the mergeContinuousShuffleBlockIdsIfNeeded method many times in the createFetchRequests method. Can merge blocks be executed only once in advance?)
> Uniformly execute the mergeContinuousShuffleBlockIdsIfNeeded method first
> -------------------------------------------------------------------------
>
> Key: SPARK-36855
> URL: https://issues.apache.org/jira/browse/SPARK-36855
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.1.0, 3.1.1, 3.1.2
> Reporter: jinhai
> Priority: Major
>
> In the ShuffleBlockFetcherIterator.partitionBlocksByFetchMode method, both local and host-local execute the mergeContinuousShuffleBlockIdsIfNeeded method first, but remote blocks executes the method many times in the createFetchRequests method. Can merge blocks be executed only once in advance?
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