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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5216) NumDecomDeadDataNodes not returning correct number of dead decommissioned nodes
Date Mon, 23 Sep 2013 18:47:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13775551#comment-13775551

Hadoop QA commented on HDFS-5216:

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  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/5018//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5018//console

This message is automatically generated.
> NumDecomDeadDataNodes not returning correct number of dead decommissioned nodes 
> --------------------------------------------------------------------------------
>                 Key: HDFS-5216
>                 URL: https://issues.apache.org/jira/browse/HDFS-5216
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.1.0-beta
>            Reporter: Trevor Lorimer
>            Assignee: Trevor Lorimer
>         Attachments: HDFS-5216.diff, HDFS-5216.diff
> For HDFS-4860 I essentially copied the process in NamenodejspHelper.generateHealthReport(),
so it would be in sync with the original dfsHealth.jsp.
> However looking at this now there may be a bug? in getNumDecomDeadDataNodes(), where:
>     getBlockManager().getDatanodeManager().fetchDatanodes(dead, null, true);
> Where the parameter true indicates that decommissioned nodes should be removed from the
> If the flag is true fetchDatanodes calls removeDecomNodeFromList, which will remove a
node if an existing datanode does not appear in both include or exclude lists and it has been
> If I am looking to return the Number of Dead Decommissioned Nodes, should I change the
remove decommissioned nodes flag to False? i.e.:
>     getBlockManager().getDatanodeManager().fetchDatanodes(null, dead, false);

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