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https://issues.apache.org/jira/browse/HDFS-4426?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13560413#comment-13560413
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Hadoop QA commented on HDFS-4426:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12566086/HDFS-4426.patch
  against trunk revision .

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include 
any new or modified tests.
                        Please justify why no new tests are needed for this 
patch.
                        Also please list what manual steps were performed to 
verify this patch.

    {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:red}-1 findbugs{color}.  The patch appears to introduce 2 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/3871//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-HDFS-Build/3871//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3871//console

This message is automatically generated.
                
> Secondary namenode shuts down immediately after startup
> -------------------------------------------------------
>
>                 Key: HDFS-4426
>                 URL: https://issues.apache.org/jira/browse/HDFS-4426
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.0.3-alpha, 0.23.6
>            Reporter: Jason Lowe
>            Assignee: Arpit Agarwal
>            Priority: Blocker
>         Attachments: HDFS-4426.patch, HDFS-4426.patch, HDFS-4426.patch
>
>
> After HADOOP-9181 went in, the secondary namenode immediately shuts down 
> after it is started.  From the startup logs:
> {noformat}
> 2013-01-22 19:54:28,826 INFO  namenode.SecondaryNameNode 
> (SecondaryNameNode.java:initialize(299)) - Checkpoint Period   :3600 secs (60 
> min)
> 2013-01-22 19:54:28,826 INFO  namenode.SecondaryNameNode 
> (SecondaryNameNode.java:initialize(301)) - Log Size Trigger    :40000 txns
> 2013-01-22 19:54:28,845 INFO  namenode.SecondaryNameNode 
> (StringUtils.java:run(616)) - SHUTDOWN_MSG: 
> /************************************************************
> SHUTDOWN_MSG: Shutting down SecondaryNameNode at xx
> ************************************************************/
> {noformat}
> I looked into the issue, and it's shutting down because 
> SecondaryNameNode.main starts a bunch of daemon threads then returns.  With 
> nothing but daemon threads remaining, the JVM sees no reason to keep going 
> and proceeds to shutdown.  Apparently we were implicitly relying on the fact 
> that the HttpServer QueuedThreadPool threads were not daemon threads to keep 
> the secondary namenode process up.

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