[jira] [Updated] (HBASE-5209) HConnection/HMasterInterface should allow for way to get hostname of currently active master in multi-master HBase setup

["David S. Wang (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-5209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David S. Wang updated HBASE-5209:
---------------------------------

    Fix Version/s: 0.92.1
                   0.94.0
           Status: Patch Available  (was: Open)

I tested this by:

* Running "mvn -P localTests -Dtest=TestMasterFailover test" successfully
* Starting a master and a couple of backup masters, checking zk_dump, killing the master, checking zk_dump, restarting the master, checking zk_dump.  All checks displayed expected values in the master and backupmaster ZNodes.

                
> HConnection/HMasterInterface should allow for way to get hostname of currently active master in multi-master HBase setup
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-5209
>                 URL: https://issues.apache.org/jira/browse/HBASE-5209
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.92.0, 0.90.5, 0.94.0
>            Reporter: Aditya Acharya
>            Assignee: David S. Wang
>             Fix For: 0.94.0, 0.92.1
>
>         Attachments: HBASE-5209-v0.diff
>
>
> I have a multi-master HBase set up, and I'm trying to programmatically determine which of the masters is currently active. But the API does not allow me to do this. There is a getMaster() method in the HConnection class, but it returns an HMasterInterface, whose methods do not allow me to find out which master won the last race. The API should have a getActiveMasterHostname() or something to that effect.

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