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From "Peter Schuller (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3483) Support bringing up a new datacenter to existing cluster without repair
Date Wed, 14 Dec 2011 01:54:31 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13168976#comment-13168976
] 

Peter Schuller commented on CASSANDRA-3483:
-------------------------------------------

I'll get it rebased once it's otherwise okay.

As for re-use: I had intermediate versions that tried to do this, but ever time I ended up
realizing that it was exploding in verbosity at the point where I was using the abstraction
so it didn't actually help. However, I think there were a few changes towards the end after
which I didn't re-evaluate.

I'll look at it again and see what I can do.
                
> 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
>            Assignee: Peter Schuller
>         Attachments: CASSANDRA-3483-0.8-prelim.txt, CASSANDRA-3483-1.0.txt
>
>
> 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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