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https://issues.apache.org/jira/browse/HDFS-1434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12917841#action_12917841
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Suresh Srinivas commented on HDFS-1434:
---------------------------------------

All unit tests passed other than TestComputeInvalidateWork and TestLargeBlock. 
These failures are unrelated to this patch.

test-patch output:

     [exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     -1 tests included.  The patch doesn't appear to include any new 
or modified tests.
     [exec]                         Please justify why no new tests are needed 
for this patch.
     [exec]                         Also please list what manual steps were 
performed to verify this patch.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning 
messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number 
of javac compiler warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs 
warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the 
total number of release audit warnings.
     [exec] 
     [exec]     +1 system tests framework.  The patch passed system tests 
framework compile.




> Refactor Datanode#startDataNode method
> --------------------------------------
>
>                 Key: HDFS-1434
>                 URL: https://issues.apache.org/jira/browse/HDFS-1434
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: data-node
>    Affects Versions: 0.22.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>             Fix For: 0.22.0
>
>         Attachments: HDFS-1434.patch
>
>
> This method is very long, approximately 190 lines. Splitting this method into 
> smaller methods. This also helps in federation where some of the 
> initialization in this methods will be done once for a datanode and others 
> once in every heartbeat thread per namenode in DN.

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