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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6243) HA NameNode transition to active or shutdown may leave lingering image transfer thread.
Date Tue, 15 Apr 2014 01:57:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13969131#comment-13969131
] 

Hadoop QA commented on HDFS-6243:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12640170/HDFS-6243.2.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}.  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-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/6666//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6666//console

This message is automatically generated.

> HA NameNode transition to active or shutdown may leave lingering image transfer thread.
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-6243
>                 URL: https://issues.apache.org/jira/browse/HDFS-6243
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ha, namenode
>    Affects Versions: 3.0.0, 2.4.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-6243.1.patch, HDFS-6243.2.patch
>
>
> With HDFS-4816, the standby uploads the new checkpoint to the active in a background
thread.  This thread may continue to execute after transitioning to active or shutting down.
 This is marginally wasteful of bandwidth if the image transfer is large, and it also breaks
subsequent tests on Windows since the thread continues to hold a lock on a file descriptor
in the storage directory.



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