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https://issues.apache.org/jira/browse/HADOOP-8208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13241336#comment-13241336
]
Hudson commented on HADOOP-8208:
--------------------------------
Integrated in Hadoop-Common-trunk-Commit #1948 (See
[https://builds.apache.org/job/Hadoop-Common-trunk-Commit/1948/])
HADOOP-8208. Disallow self failover. Contributed by Eli Collins (Revision
1306935)
Result = SUCCESS
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1306935
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/FailoverController.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestFailoverController.java
> Disallow self failover
> ----------------------
>
> Key: HADOOP-8208
> URL: https://issues.apache.org/jira/browse/HADOOP-8208
> Project: Hadoop Common
> Issue Type: Bug
> Components: ha
> Reporter: Eli Collins
> Assignee: Eli Collins
> Attachments: hadoop-8208.txt
>
>
> It is currently possible for users to make a standby NameNode failover to
> itself and become active. We shouldn't allow this to happen in case operators
> mistype and miss the fact that there are now two active NNs.
> {noformat}
> bash-4.1$ hdfs haadmin -ns ha-nn-uri -failover nn2 nn2
> Failover from nn2 to nn2 successful
> {noformat}
> After the failover above, nn2 will be active.
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