[jira] [Resolved] (HBASE-17305) Two active HBase Masters can run at the same time under certain circumstances

["Andrew Kyle Purtell (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-17305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Kyle Purtell resolved HBASE-17305.
-----------------------------------------
      Assignee:     (was: Esteban Gutierrez)
    Resolution: Abandoned

> Two active HBase Masters can run at the same time under certain circumstances 
> ------------------------------------------------------------------------------
>
>                 Key: HBASE-17305
>                 URL: https://issues.apache.org/jira/browse/HBASE-17305
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 2.0.0
>            Reporter: Esteban Gutierrez
>            Priority: Critical
>
> This needs a little more investigation, but we found a very edgy case when the active master is restarted and a stand-by master tries to become active, however the original active master was able to become the active master again and just before the standby master passed the point of the transition to become active we ended up with two active masters running at the same time. Assuming the clock on both masters were accurate to milliseconds, this race happened in less than 85ms. 



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