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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10410) Support ioprio_set in NativeIO
Date Thu, 20 Mar 2014 09:49:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13941564#comment-13941564
] 

Hadoop QA commented on HADOOP-10410:
------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12635749/HADOOP-10410.txt
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/3686//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/3686//console

This message is automatically generated.

> Support ioprio_set in NativeIO
> ------------------------------
>
>                 Key: HADOOP-10410
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10410
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: native
>    Affects Versions: 3.0.0, 2.4.0
>            Reporter: Liang Xie
>            Assignee: Liang Xie
>         Attachments: HADOOP-10410.txt
>
>
> It would be better to HBase application if HDFS layer provide a fine-grained IO request
priority. Most of modern kernel should support ioprio_set system call now.



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