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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8617) Throttle DiskChecker#checkDirs() speed.
Date Tue, 24 Nov 2015 20:06:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025249#comment-15025249
] 

Hadoop QA commented on HDFS-8617:
---------------------------------

| (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 6s {color} | {color:red}
HDFS-8617 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/12740210/HDFS-8617.000.patch
|
| JIRA Issue | HDFS-8617 |
| Powered by | Apache Yetus   http://yetus.apache.org |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/13641/console |


This message was automatically generated.



> Throttle DiskChecker#checkDirs() speed.
> ---------------------------------------
>
>                 Key: HDFS-8617
>                 URL: https://issues.apache.org/jira/browse/HDFS-8617
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 2.7.0
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>         Attachments: HDFS-8617.000.patch
>
>
> As described in HDFS-8564,  {{DiskChecker.checkDirs(finalizedDir)}} is causing excessive
I/Os because {{finalizedDirs}} might have up to 64K sub-directories (HDFS-6482).
> This patch proposes to limit the rate of IO operations in {{DiskChecker.checkDirs()}}.




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