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https://issues.apache.org/jira/browse/HDFS-2823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers resolved HDFS-2823.
----------------------------------

    Resolution: Invalid

I forgot that HDFS-2737 hasn't been committed yet, and this bug is only present 
in the latest patch for that JIRA. Resolving this and will post an updated 
patch on HDFS-2737.
                
> HA: Transition to active can cause NN deadlock
> ----------------------------------------------
>
>                 Key: HDFS-2823
>                 URL: https://issues.apache.org/jira/browse/HDFS-2823
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>            Priority: Blocker
>
> On transition to active, we have to take the FSNS write lock. In 
> {{EditLogTailer#stop}}, we interrupt the edit log tailer thread and then join 
> on that thread. When tailing edits, the edit log tailer thread acquires the 
> FSNS write lock interruptibly, precisely so that we avoid deadlocks on 
> transition to active. However, the edit log tailer thread now also triggers 
> edit log rolls. Several places in {{ipc.Client}} catch and ignore 
> {{InterruptedException}}, and in so doing may cause the {{Thread#interrupt}} 
> call to be missed by the edit log tailer thread.

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