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https://issues.apache.org/jira/browse/CASSANDRA-3483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154502#comment-13154502
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Jonathan Ellis commented on CASSANDRA-3483:
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So, am I understanding correctly that we're talking about two different
scenarios?
- Add new DC without repair
- Add many nodes to existing DC without RING_DELAY in between
I think Sylvain's proposal addresses the first nicely. So what I need help
with is understanding what problem you're trying to solve with the second part.
Dealing with overlapping ranges in node movement basically requires a rewrite
of that subsystem (CASSANDRA-2434). But I suspect there is a "good enough"
solution that we could find if I understood better what your pain point is here.
> 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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