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https://issues.apache.org/jira/browse/HDFS-14880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16957665#comment-16957665
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Vinayakumar B commented on HDFS-14880:
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I don't think this will be an Incompatible change.
Line itself is not changed. Only when it appears is changed.
*The cluster is balanced. Exiting...* Before this message comes, there might be
multiple messages about stats (with non-zero values)
So printing the same message with values as 0, should not be a problem.
Coming to patch,
I think, you should print the message inside for loop based on return status.
> Balancer sequence of statistics & exit message is not correct
> -------------------------------------------------------------
>
> Key: HDFS-14880
> URL: https://issues.apache.org/jira/browse/HDFS-14880
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer & mover
> Affects Versions: 3.1.1, 3.2.1
> Environment: Run the balancer tool in cluster.
> Reporter: Renukaprasad C
> Assignee: Renukaprasad C
> Priority: Major
> Attachments: HDFS-14880.0001.patch
>
>
> Actual:
> Time Stamp Iteration# Bytes Already Moved Bytes Left To Move Bytes Being Moved
> The cluster is balanced. Exiting...
> Sep 27, 2019 5:13:15 PM 0 0 B 0 B
> 0 B
> Sep 27, 2019 5:13:15 PM Balancing took 1.726 seconds
> Done!
> Expected: Exit message should be after loggin all the balancer movement
> statistics data.
> Time Stamp Iteration# Bytes Already Moved Bytes Left To Move Bytes Being Moved
> Sep 27, 2019 5:13:15 PM 0 0 B 0 B
> 0 B
> The cluster is balanced. Exiting...
> Sep 27, 2019 5:13:15 PM Balancing took 1.726 seconds
> Done!
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