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https://issues.apache.org/jira/browse/HDFS-8143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14515172#comment-14515172
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Tsz Wo Nicholas Sze commented on HDFS-8143:
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- If the mover exit due to failure, it should exit with an error state like
balancer.
- moverFailedRetryCounter should count for consecutive failures. If there is
no failure in an iteration, it should reset the count.
- Please add a test.
> HDFS Mover tool should exit after some retry when failed to move blocks.
> ------------------------------------------------------------------------
>
> Key: HDFS-8143
> URL: https://issues.apache.org/jira/browse/HDFS-8143
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer & mover
> Affects Versions: 2.6.0
> Reporter: surendra singh lilhore
> Assignee: surendra singh lilhore
> Priority: Blocker
> Attachments: HDFS-8143.patch
>
>
> Mover is not coming out in case of failed to move blocks.
> {code}
> hasRemaining |= Dispatcher.waitForMoveCompletion(storages.targets.values());
> {code}
> {{Dispatcher.waitForMoveCompletion()}} will always return true if some blocks
> migration failed. So hasRemaining never become false.
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