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https://issues.apache.org/jira/browse/HDFS-13055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374910#comment-16374910
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genericqa commented on HDFS-13055:
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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  5s{color} 
| {color:red} HDFS-13055 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-13055 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12911616/HDFS-13055.003.patch |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/23173/console |
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This message was automatically generated.



> Aggregate usage statistics from datanodes
> -----------------------------------------
>
>                 Key: HDFS-13055
>                 URL: https://issues.apache.org/jira/browse/HDFS-13055
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Ajay Kumar
>            Assignee: Ajay Kumar
>            Priority: Major
>         Attachments: HDFS-13055.001.patch, HDFS-13055.002.patch, 
> HDFS-13055.003.patch
>
>
> We collect variety of statistics in DataNodes and expose them via JMX. 
> Aggregating some of the high level statistics which we are already collecting 
> in {{DataNodeMetrics}} (like bytesRead,bytesWritten etc) over a configurable 
> time window will create a central repository accessible via JMX and UI.



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