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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4191) Track new transactions per thread so that unnecessary logSync() calls can be avoided
Date Fri, 16 Nov 2012 15:48:13 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13498872#comment-13498872
] 

Hadoop QA commented on HDFS-4191:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12553783/hdfs-4191-trunk.patch
  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}.  The javadoc tool did not generate any 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-hdfs-project/hadoop-hdfs.

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/3525//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3525//console

This message is automatically generated.
                
> Track new transactions per thread so that unnecessary logSync() calls can be avoided
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-4191
>                 URL: https://issues.apache.org/jira/browse/HDFS-4191
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 3.0.0
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>         Attachments: hdfs-4191-trunk.patch
>
>
> With this fix, logSync() can be called anytime by a thread without affecting the batched
syncs metrics. As discussed in HDFS-4186, we will put this feature only to trunk first and
let it soak for some time. 

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