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https://issues.apache.org/jira/browse/HDFS-4376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13793229#comment-13793229
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Junping Du commented on HDFS-4376:
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The new patch seems not work or involve new deadlock. It cause 5 timeout
failure in 50 iteration. Need to do more investigations.
> Intermittent timeout of TestBalancerWithNodeGroup
> -------------------------------------------------
>
> Key: HDFS-4376
> URL: https://issues.apache.org/jira/browse/HDFS-4376
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer, test
> Affects Versions: 2.0.3-alpha
> Reporter: Aaron T. Myers
> Assignee: Junping Du
> Attachments: BalancerTest-HDFS-4376-v1.tar.gz, HDFS-4376-v1.patch,
> HDFS-4376-v2.patch, test-balancer-with-node-group-timeout.txt
>
>
> HDFS-4261 fixed several issues with the balancer and balancer tests, and
> reduced the frequency with which TestBalancerWithNodeGroup times out. Despite
> this, occasional timeouts still occur in this test. This JIRA is to track and
> fix this problem.
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