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From Alain RODRIGUEZ <arodr...@gmail.com>
Subject Re: How to change existing cluster to multi-center
Date Fri, 26 Apr 2013 10:05:34 GMT
I just asked this exact same question but after maybe after reading a bit
more doc than you did. You may want to read this thread:
http://grokbase.com/t/cassandra/user/134j85av4x/ec2snitch-to-ec2multiregionsnitch

You also may want to read some doc. Datastax explain things quite well and
update the doc regularly.

Hope this will help.


2013/4/25 Daning Wang <daning@netseer.com>

> Hi All,
>
> We have 8 nodes cluster(replication factor is 3), about 50G data on each
> node. we need to change the cluster to multi-center environment(to EC2).
> the data need to have one replica on ec2.
>
> Here is the plan,
>
> - Change cluster config to mult-center.
> - Add 2 or 3 nodes in another center, which is ec2.
> - Change the replication factor to make data synced to other center.
>
> We have not done the test yet, is this doable? the main concern is that
> since connection to ec2 is slow, it will take longer time to streaming
> data(should be more than 100G) at the beginning.
>
> Anybody has done this before, please share some light,
>
> Thanks in advance,
>
> Daning
>
>
>
>

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