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https://issues.apache.org/jira/browse/HDFS-4376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13793001#comment-13793001
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Tsz Wo (Nicholas), SZE commented on HDFS-4376:
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Hi Junping, thanks for working hard on this.
Source.chooseNextBlockToMove() also changes scheduledSize. I think we should
change scheduledSize to private so that we could enforce synchronization inside
BalancerDatanode.
> 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,
> 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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