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https://issues.apache.org/jira/browse/HDFS-6334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13999007#comment-13999007
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Hudson commented on HDFS-6334:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #5605 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/5605/])
HDFS-6334. Client failover proxy provider for IP failover based NN HA. 
Contributed by Kihwal Lee. (kihwal: 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1594263)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/HAUtil.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/NameNodeProxies.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/resources/DatanodeWebHdfsMethods.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/AbstractNNFailoverProxyProvider.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/ConfiguredFailoverProxyProvider.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/IPFailoverProxyProvider.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/WrappedFailoverProxyProvider.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSAdmin.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSClientFailover.java
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestRetryCacheWithHA.java


> Client failover proxy provider for IP failover based NN HA
> ----------------------------------------------------------
>
>                 Key: HDFS-6334
>                 URL: https://issues.apache.org/jira/browse/HDFS-6334
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>             Fix For: 3.0.0, 2.5.0
>
>         Attachments: HDFS-6334.patch, HDFS-6334.v2.patch, HDFS-6334.v3.patch
>
>
> With RPCv9 and improvements in the SPNEGO auth handling, it is possible to 
> set up a pair of HA namenodes utilizing IP failover as client-request fencing 
> mechanism.
> This jira will make it possible for HA to be configured without requiring use 
> of logical URI and provide a simple IP failover proxy provider.  The change 
> will allow any old implementation of {{FailoverProxyProvider}} to continue to 
> work.



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