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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3245) Add metrics and web UI for cluster version summary
Date Mon, 26 Aug 2013 18:43:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750385#comment-13750385
] 

Hadoop QA commented on HDFS-3245:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12599970/HDFS-3245.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}.  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/4891//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4891//console

This message is automatically generated.
                
> Add metrics and web UI for cluster version summary
> --------------------------------------------------
>
>                 Key: HDFS-3245
>                 URL: https://issues.apache.org/jira/browse/HDFS-3245
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.0.0-alpha
>            Reporter: Todd Lipcon
>            Assignee: Ravi Prakash
>         Attachments: HDFS-3245.branch-2.patch, HDFS-3245.branch-2.patch, HDFS-3245.branch-2.patch,
HDFS-3245.branch-2.patch, HDFS-3245.patch, HDFS-3245.patch, HDFS-3245.patch
>
>
> With the introduction of protocol compatibility, once HDFS-2983 is committed, we have
the possibility that different nodes in a cluster are running different software versions.
To aid operators, we should add the ability to summarize the status of versions in the cluster,
so they can easily determine whether a rolling upgrade is in progress or if some nodes "missed"
an upgrade (eg maybe they were out of service when the software was updated)

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