incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jonathan Ellis <jbel...@gmail.com>
Subject Re: About the replication strategy of Cassandra
Date Sun, 14 Mar 2010 01:09:05 GMT
On Sat, Mar 13, 2010 at 4:38 PM, Kauzki Aranami
<kazuki.aranami@gmail.com> wrote:
> I want you to explain this "For "Rack Aware" and "Datacenter Aware"
> strategies the algorithm is slightly more involved.". Is there an
> algorithm corresponding to "Rack Aware" and "Datacenter Aware"?

>From http://wiki.apache.org/cassandra/Operations :

RackAwareStrategy: replica 2 is is placed in the first node along the
ring the belongs in another data center than the first; the remaining
N-2 replicas, if any, are placed on the first nodes along the ring in
the same rack as the first

More details on that page.

Mime
View raw message