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From banks <>
Subject Re: Question about a potential configuration scenario
Date Fri, 23 Apr 2010 23:17:49 GMT
just make them one cluster, and use the rackAware logic...

On Fri, Apr 23, 2010 at 7:21 AM, Campbell, Joseph <> wrote:

> Question:
>        It is possible to setup Cassandra such that 2 independent
> Cassandra rings/clusters replicate to one another, ensuring that each
> ring/cluster has at least 1 copy of all the data on each ring/cluster?
> The setup is like this:
>        2 Data centers, one in Philadelphia and another in Denver.  In
> each data center there exists a Cassandra ring/cluster.  Each data
> center is being used as a live-live origin (meaning both data centers
> are in use at any point in time).  I would like to be able to guarantee
> that in the event that one or the other of the data centers goes down
> that 'ALL' the available data in that failed data center is also
> available in the other data center such that traffic to the origin
> website that depends on the data can simply be switched over to the
> other site (Using Akamai, or other tools).  Is this type of
> configuration possible/available in Cassandra?  If so how would you set
> it up, and what might some of the draw backs be?
> Thanks,
>        Joe Campbell
> --
> Anyone can get hit by a MOVING car,
> but it takes skill to get hit by a PARKED car.
>                     -- Random Tee-shirt on Dysfunction
> Joe Campbell | one comcast center | philadelphia, pa 19103 |
> 215.286.5073

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