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https://issues.apache.org/jira/browse/HDFS-3713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eli Collins resolved HDFS-3713.
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Resolution: Duplicate
> Disallow self-failover when auto failover is enabled
> ----------------------------------------------------
>
> Key: HDFS-3713
> URL: https://issues.apache.org/jira/browse/HDFS-3713
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: auto-failover
> Affects Versions: 2.0.0-alpha
> Reporter: Eli Collins
> Priority: Minor
>
> When auto failover is enabled, the user can manually failover from a
> nameservice to itself. When auto failover is disabled, there is a check that
> prevents failover from a nameservice to itself, we should have the same check
> for auto failover.
> {noformat}
> bash-4.1$ hdfs haadmin -failover nn1 nn1
> Failover to NameNode at brut01.sf.cloudera.com/172.22.35.149:17020 successful
> bash-4.1$ hdfs haadmin -failover nn1 nn1
> Failover to NameNode at brut01.sf.cloudera.com/172.22.35.149:17020 successful
> bash-4.1$
> {noformat}
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