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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8694) Expose the stats of IOErrors on each FsVolume through JMX
Date Tue, 24 Nov 2015 20:18:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025274#comment-15025274
] 

Hadoop QA commented on HDFS-8694:
---------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 4s {color} | {color:red}
HDFS-8694 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 Patch URL | https://issues.apache.org/jira/secure/attachment/12743409/HDFS-8694.001.patch
|
| JIRA Issue | HDFS-8694 |
| Powered by | Apache Yetus   http://yetus.apache.org |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/13642/console |


This message was automatically generated.



> Expose the stats of IOErrors on each FsVolume through JMX
> ---------------------------------------------------------
>
>                 Key: HDFS-8694
>                 URL: https://issues.apache.org/jira/browse/HDFS-8694
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 2.7.0
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>         Attachments: HDFS-8694.000.patch, HDFS-8694.001.patch
>
>
> Currently, once DataNode hits an {{IOError}} when writing / reading block files, it starts
a background {{DiskChecker.checkDirs()}} thread. But if this thread successfully finishes,
DN does not record this {{IOError}}. 
> We need one measurement to count all {{IOErrors}} for each volume.



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