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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10815) Master regionserver should be rolling-upgradable
Date Fri, 28 Mar 2014 23:12:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jimmy Xiang updated HBASE-10815:

    Status: Patch Available  (was: Open)

> Master regionserver should be rolling-upgradable
> ------------------------------------------------
>                 Key: HBASE-10815
>                 URL: https://issues.apache.org/jira/browse/HBASE-10815
>             Project: HBase
>          Issue Type: Sub-task
>          Components: master, Region Assignment
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>             Fix For: 0.99.0
>         Attachments: hbase-10815.patch, hbase-10815_v2.patch
> In HBASE-10569, two things could affect the rolling-upgrade from a 0.96+ release:
> * Master doesn't have its own info server any. It shares the same info server with the
regionserver. We can have a setting so that we can start two info servers, one for the master
on the original port, and one for the regionserver.
> * Backup master is a regionserver now. So it could hold regions. This could affect some
deployment. We can have a setting so that we can prevent backup master from serving any region.

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