RegionServers fail to report to backup HMaster after primary goes down.
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                 Key: HBASE-5063
                 URL: https://issues.apache.org/jira/browse/HBASE-5063
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.92.0
            Reporter: Jonathan Hsieh
            Priority: Critical


# Setup cluster with two HMasters
# Observe that HM1 is up and that all RS's are in the RegionServer list on web 
page.
# Kill (not even -9) the active HMaster
# Wait for ZK to time out (default 3 minutes).
# Observe that HM2 is now active.  Tables may show up but RegionServers never 
report on web page.  Existing connections are fine.  New connections cannot 
find regionservers.

Note: 
* If we replace a new HM1 in the same place and kill HM2, the cluster functions 
normally again after recovery.  This sees to indicate that regionservers are 
stuck trying to talk to the old HM1.




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