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https://issues.apache.org/jira/browse/HDFS-15932?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17311744#comment-17311744
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Renukaprasad C commented on HDFS-15932:
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Message change in case of abnormal balancer process exit & try to start the
balancer for next time. No UT change required.
Build failure is not related to the changes done.
[~brahma] can you plz look into the patch when you find time?
> Improve the balancer error message when process exits abnormally.
> -----------------------------------------------------------------
>
> Key: HDFS-15932
> URL: https://issues.apache.org/jira/browse/HDFS-15932
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Renukaprasad C
> Assignee: Renukaprasad C
> Priority: Major
> Attachments: HDFS-15932.001.patch
>
>
> The HDFS balancer exits abnormally. The content of the pid file is not
> cleaned up, and the new balancer cannot be started.
> Start the balancer (start-balancer.sh threshold 5)
> Kill the balancer process (kill -9 <Balancer PID>)
> Re-execute the balancer, there will be an error message.
> -- Balancer is running as process xxxx. Stop it first.
> (But process already stopped, error message can be more detailed)
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