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https://issues.apache.org/jira/browse/HADOOP-8077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13248374#comment-13248374
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Hudson commented on HADOOP-8077:
--------------------------------

Integrated in Hadoop-Mapreduce-trunk #1041 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1041/])
    HADOOP-8077. HA: fencing method should be able to be configured on a per-NN 
or per-NS basis. Contributed by Todd Lipcon. (Revision 1310173)

     Result = SUCCESS
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1310173
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/NodeFencer.java
* 
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestNodeFencer.java
* 
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestShellCommandFencer.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/NNHAServiceTarget.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/TestDFSHAAdmin.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/TestDFSHAAdminMiniCluster.java

                
> HA: fencing method should be able to be configured on a per-NN or per-NS basis
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-8077
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8077
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ha
>    Affects Versions: 0.24.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 2.0.0
>
>         Attachments: hadoop-8077.txt, hadoop-8077.txt
>
>
> Currently, the fencing method configuration is global. Given that different 
> nameservices may use different underlying storage mechanisms or different 
> types of PDUs, it would be preferable to allow the fencing method 
> configuration to be scoped by namenode or nameservice.

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