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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3486) Change default for initial block report to 0 sec and document it in hadoop-defaults.xml
Date Wed, 04 Jun 2008 11:55:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12602257#action_12602257
] 

Hadoop QA commented on HADOOP-3486:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12383333/hadoopDefaults4Delay2.patch
  against trunk revision 662976.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no tests are needed for this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2568/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2568/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2568/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2568/console

This message is automatically generated.

> Change default for initial block report to 0 sec and document it in hadoop-defaults.xml
> ---------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3486
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3486
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Sanjay Radia
>            Assignee: Sanjay Radia
>             Fix For: 0.18.0
>
>         Attachments: hadoopDefaults4Delay.patch, hadoopDefaults4Delay2.patch
>
>
> HADOOP-2326 added a new config parameter for the initial block report that gets sent
after DataNode registration.
> The default value for this parameter was 60 sec.
> This Jira changes the default to 0 sec -  the approriate default for 1 node or small
clusters (say  less than 50 nodes)
> This Jira also documents the config parameter in  hadoop-defaults.xml

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