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From "Tanping Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1773) Remove a datanode from cluster if include list is not empty and this datanode is removed from both include and exclude lists
Date Tue, 03 May 2011 01:25:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13027973#comment-13027973
] 

Tanping Wang commented on HDFS-1773:
------------------------------------

Run test-patch manually,

     [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 (version 1.3.9)
warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.
     [exec] 
     [exec]     +1 system test framework.  The patch passed system test framework compile.
     [exec] 
     [exec] 
     [exec] 
     [exec] 
     [exec] ======================================================================
     [exec] ======================================================================
     [exec]     Finished build.
     [exec] ======================================================================
     [exec] ======================================================================


No unit test added, but tested manually.  

> Remove a datanode from cluster if include list is not empty and this datanode is removed
from both include and exclude lists
> ----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-1773
>                 URL: https://issues.apache.org/jira/browse/HDFS-1773
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 0.20.203.1, 0.23.0
>         Environment: branch-20-security and trunk.
>            Reporter: Tanping Wang
>            Assignee: Tanping Wang
>            Priority: Minor
>             Fix For: 0.20.204.0, 0.23.0
>
>         Attachments: HDFS-1773-2.patch, HDFS-1773-3.patch, HDFS-1773.patch, HDFS-1867.patch
>
>
> Our service engineering team who operates the clusters on a daily basis founds it is
confusing that after a data node is decommissioned, there is no way to make the cluster forget
about this data node and it always remains in the dead node list.

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