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https://issues.apache.org/jira/browse/HDFS-16763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17601377#comment-17601377
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ASF GitHub Bot commented on HDFS-16763:
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whbing opened a new pull request, #4868:
URL: https://github.com/apache/hadoop/pull/4868
### Description of PR
https://issues.apache.org/jira/browse/HDFS-16763
```
When running the Mover tool, the number of mover threads per DN is always 1,
resulting in very slow data movement.
This JIRA fixes the problem which the current config is invalid.
```
> MoverTool: Make valid for the number of mover threads per DN
> ------------------------------------------------------------
>
> Key: HDFS-16763
> URL: https://issues.apache.org/jira/browse/HDFS-16763
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer & mover
> Reporter: Hongbing Wang
> Priority: Major
>
> When running the Mover tool, the number of mover threads per DN is always 1,
> resulting in very slow data movement.
> This JIRA fixes the problem which the current config is invalid.
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