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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/07/15 02:59:01 UTC
[jira] [Commented] (FLINK-7201) ConcurrentModificationException in
JobLeaderIdService
[ https://issues.apache.org/jira/browse/FLINK-7201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16088389#comment-16088389 ]
ASF GitHub Bot commented on FLINK-7201:
---------------------------------------
GitHub user XuPingyong opened a pull request:
https://github.com/apache/flink/pull/4347
[FLINK-7201] fix concurrency in JobLeaderIdService when shutdown the …
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/XuPingyong/flink FLINK-7201
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4347.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4347
----
commit 2c04107f2bb76944f1759ba7a71de56347d8a2bf
Author: pingyong.xpy <pi...@alibaba-inc.com>
Date: 2017-07-15T02:56:13Z
[FLINK-7201] fix concurrency in JobLeaderIdService when shutdown the ResourceManager
----
> ConcurrentModificationException in JobLeaderIdService
> -----------------------------------------------------
>
> Key: FLINK-7201
> URL: https://issues.apache.org/jira/browse/FLINK-7201
> Project: Flink
> Issue Type: Bug
> Components: JobManager
> Reporter: Xu Pingyong
> Assignee: Xu Pingyong
>
> java.util.ConcurrentModificationException: null
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:922)
> at java.util.HashMap$ValueIterator.next(HashMap.java:950)
> at org.apache.flink.runtime.resourcemanager.JobLeaderIdService.clear(JobLeaderIdService.java:114)
> at org.apache.flink.runtime.resourcemanager.JobLeaderIdService.stop(JobLeaderIdService.java:92)
> at org.apache.flink.runtime.resourcemanager.ResourceManager.shutDown(ResourceManager.java:200)
> at org.apache.flink.runtime.resourcemanager.ResourceManagerRunner.shutDownInternally(ResourceManagerRunner.java:102)
> at org.apache.flink.runtime.resourcemanager.ResourceManagerRunner.shutDown(ResourceManagerRunner.java:97)
> at org.apache.flink.runtime.minicluster.MiniCluster.shutdownInternally(MiniCluster.java:329)
> at org.apache.flink.runtime.minicluster.MiniCluster.shutdown(MiniCluster.java:297)
> at org.apache.flink.runtime.minicluster.MiniClusterITCase.runJobWithMultipleJobManagers(MiniClusterITCase.java:85)
> Because the jobLeaderIdService stops before the rpcService when shutdown the resourceManager, jobLeaderIdService has a risk of thread-unsafe.
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