[jira] [Resolved] (HBASE-20265) Host regions in other rsgroup when all region servers in a rsgroup are all down

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

     [ https://issues.apache.org/jira/browse/HBASE-20265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Kyle Purtell resolved HBASE-20265.
-----------------------------------------
    Resolution: Won't Fix

> Host regions in other rsgroup when all region servers in a rsgroup are all down
> -------------------------------------------------------------------------------
>
>                 Key: HBASE-20265
>                 URL: https://issues.apache.org/jira/browse/HBASE-20265
>             Project: HBase
>          Issue Type: Improvement
>          Components: rsgroup
>            Reporter: Xiang Li
>            Priority: Critical
>
> We met the following scenario in our production system:
> rsgroup A hosts user table 1 as well as system tables (let's say hbase:rsgroup, or hbase:meta). Several heavy reads on user table 1 make all region servers within rsgroup A crash. As a result, the system tables have no host.
> Under such scenario, we could manually move the system tables to another rsgroup.
> But what about:
> We provide an affinity or last resort. When all region servers in rsgroup A crash, rsgroup B, as rsgroup A's affinity, will take over all tables of rsgroup A, or at least, some important tables.



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