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https://issues.apache.org/jira/browse/SPARK-24787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcelo Vanzin resolved SPARK-24787.
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Resolution: Fixed
Fix Version/s: 2.4.1
3.0.0
Issue resolved by pull request 22752
[https://github.com/apache/spark/pull/22752]
> Events being dropped at an alarming rate due to hsync being slow for
> eventLogging
> ---------------------------------------------------------------------------------
>
> Key: SPARK-24787
> URL: https://issues.apache.org/jira/browse/SPARK-24787
> Project: Spark
> Issue Type: Bug
> Components: Spark Core, Web UI
> Affects Versions: 2.3.0, 2.3.1
> Reporter: Sanket Reddy
> Assignee: Devaraj K
> Priority: Minor
> Fix For: 3.0.0, 2.4.1
>
>
> [https://github.com/apache/spark/pull/16924/files] updates the length of the
> inprogress files allowing history server being responsive.
> Although we have a production job that has 60000 tasks per stage and due to
> hsync being slow it starts dropping events and the history server has wrong
> stats due to events being dropped.
> A viable solution is not to make it sync very frequently or make it
> configurable.
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