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From "Chris Goffinet (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3483) Support bringing up a new datacenter to existing cluster without repair
Date Thu, 17 Nov 2011 04:28:51 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13151784#comment-13151784
] 

Chris Goffinet commented on CASSANDRA-3483:
-------------------------------------------

Yeah as Brandon mentioned, we would still want to go into the bootstrap state to get those
writes. This would also allow us to add capacity in the same way, if we manually pick tokens
(auto bootstrap is kinda worthless IMO) to existing DC as well. We can just fire off the bootstrap
command from nodetool as needed.
                
> Support bringing up a new datacenter to existing cluster without repair
> -----------------------------------------------------------------------
>
>                 Key: CASSANDRA-3483
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3483
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.0.2
>            Reporter: Chris Goffinet
>
> Was talking to Brandon in irc, and we ran into a case where we want to bring up a new
DC to an existing cluster. He suggested from jbellis the way to do it currently was set strategy
options of dc2:0, then add the nodes. After the nodes are up, change the RF of dc2, and run
repair. 
> I'd like to avoid a repair as it runs AES and is a bit more intense than how bootstrap
works currently by just streaming ranges from the SSTables. Would it be possible to improve
this functionality (adding a new DC to existing cluster) than the proposed method? We'd be
happy to do a patch if we got some input on the best way to go about it.

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