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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3720) dfsadmin -refreshNodes should re-read the config file.
Date Wed, 16 Jul 2008 03:03:31 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613818#action_12613818
] 

Hadoop QA commented on HADOOP-3720:
-----------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12386016/HADOOP-3720-4.patch
  against trunk revision 677054.

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

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +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/2865/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2865/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2865/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2865/console

This message is automatically generated.

> dfsadmin -refreshNodes should re-read the config file.
> ------------------------------------------------------
>
>                 Key: HADOOP-3720
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3720
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.19.0
>            Reporter: Lohit Vijayarenu
>            Assignee: Lohit Vijayarenu
>         Attachments: HADOOP-3720-1.patch, HADOOP-3720-2.patch, HADOOP-3720-3.patch, HADOOP-3720-4.patch
>
>
> hadoop dfsadmin -refreshNodes reads files defined by _dfs.hosts_ and _dfs.hosts.exclude_.
If these values are not defined during namenode startup, then refreshNodes command assumes
there are no files. So, while namenode is running, once cannot just edit the config file and
add entries to these config variables and expect the namenode to read them. Namenode should
re-read the config file for these variables (_dfs.hosts_ and _dfs.hosts.exclude_) when refreshNodes
command is invoked. 

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