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From "Sumit Mohanty (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMBARI-4499) Add support for marking hbase RS instances as DRAINING before decommission
Date Wed, 26 Feb 2014 08:15:19 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-4499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sumit Mohanty resolved AMBARI-4499.
-----------------------------------

    Resolution: Fixed

committed to trunk

> Add support for marking hbase RS instances as DRAINING before decommission
> --------------------------------------------------------------------------
>
>                 Key: AMBARI-4499
>                 URL: https://issues.apache.org/jira/browse/AMBARI-4499
>             Project: Ambari
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 1.5.0
>            Reporter: Sumit Mohanty
>            Assignee: Sumit Mohanty
>             Fix For: 1.5.0
>
>         Attachments: AMBARI-4499.patch
>
>
> Hbase decommission is actually a graceful stop under the cover. One critical component
of graceful stop is to mark candidate region server instances as "draining". This is required
when more than one node is being stopped so that regions being moved out of one node do not
end up on the another node that is also a candidate of graceful stop.



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