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From "Coe, Robin" <>
Subject RE: Configuring Cassandra
Date Wed, 09 Dec 2009 01:05:08 GMT

Thanks for the excellent write-up.  Definitely clarifies stuff I
inferred from the mailing list and other documents I've scrounged around
the web.

I'd love to see this document grow as time permits, to include known
caveats, hidden features, tweaks, etc.  Perhaps, with some common use
cases to help elucidate the content?

One question, though.  I thought I read about using an initial token for
a RandmizedPartioner of between 0 and 127, but in your write-up, you say
the value should be i * (2**127 / N) for i = 1 .. N.  That's a slightly
larger number.  Can you clarify?


-----Original Message-----
From: Jonathan Ellis [] 
Sent: December 8, 2009 5:57 PM
Subject: Re: Configuring Cassandra

On Tue, Dec 8, 2009 at 7:21 AM, Rakesh Sharma <> wrote:
> f) Can I take backups from each node and merge them on a single node?
> it's not at all required?

All you would need to do would be to copy the snapshotted sstables
into the data directory on the target node, but I'm not sure why you
would want to do that.

I wrote to answer the
other questions in more detail. :)


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