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https://issues.apache.org/jira/browse/HDFS-12859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16909497#comment-16909497
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Hadoop QA commented on HDFS-12859:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 7s{color}
| {color:red} HDFS-12859 does not apply to trunk. Rebase required? Wrong
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-12859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12899783/0004-HDFS-12859-Admin-command-resetBalancerBandwidth.patch
|
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/27536/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> Admin command resetBalancerBandwidth
> ------------------------------------
>
> Key: HDFS-12859
> URL: https://issues.apache.org/jira/browse/HDFS-12859
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: balancer & mover
> Reporter: Jianfei Jiang
> Assignee: Jianfei Jiang
> Priority: Major
> Attachments:
> 0003-HDFS-12859-Admin-command-resetBalancerBandwidth.patch,
> 0004-HDFS-12859-Admin-command-resetBalancerBandwidth.patch, HDFS-12859.patch
>
>
> We can already set balancer bandwidth dynamically using command
> setBalancerBandwidth. The setting value is not persistent and not stored in
> configuration file. The different datanodes could their different default or
> former setting in configuration.
> When we suggested to develop a schedule balancer task which runs at midnight
> everyday. We set a larger bandwidth for it and hope to reset the value after
> finishing. However, we found it difficult to reset the different setting for
> different datanodes as the setBalancerBandwidth command can only set the same
> value to all datanodes. If we want to use unique setting for every datanode,
> we have to reset the datanodes.
> So it would be useful to have a command to synchronize the setting with the
> configuration file.
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