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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2020/09/15 06:47:00 UTC
[jira] [Resolved] (SPARK-32738) thread safe endpoints may hang due
to fatal error
[ https://issues.apache.org/jira/browse/SPARK-32738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan resolved SPARK-32738.
---------------------------------
Fix Version/s: 3.1.0
Resolution: Fixed
Issue resolved by pull request 29580
[https://github.com/apache/spark/pull/29580]
> thread safe endpoints may hang due to fatal error
> -------------------------------------------------
>
> Key: SPARK-32738
> URL: https://issues.apache.org/jira/browse/SPARK-32738
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.4, 2.4.6, 3.0.0
> Reporter: Zhenhua Wang
> Assignee: Zhenhua Wang
> Priority: Major
> Fix For: 3.1.0
>
>
> Processing for `ThreadSafeRpcEndpoint` is controlled by 'numActiveThreads' in `Inbox`. Now if any fatal error happens during `Inbox.process`, 'numActiveThreads' is not reduced. Then other threads can not process messages in that inbox, which causes the endpoint to "hang".
> This problem is more serious in previous Spark 2.x versions since the driver, executor and block manager endpoints are all thread safe endpoints.
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