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Posted to dev@hbase.apache.org by "Jimmy Xiang (JIRA)" <ji...@apache.org> on 2014/03/24 17:44:45 UTC

[jira] [Created] (HBASE-10815) Master regionserver should be rolling-upgradable

Jimmy Xiang created HBASE-10815:
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             Summary: Master regionserver should be rolling-upgradable
                 Key: HBASE-10815
                 URL: https://issues.apache.org/jira/browse/HBASE-10815
             Project: HBase
          Issue Type: Sub-task
            Reporter: Jimmy Xiang
            Assignee: Jimmy Xiang


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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