Re: cluster with cross data center and local

2013-02-28 Thread aaron morton 
  I assume my only options are to create another cluster or to create another 
 keyspace using LocalStrategy strategy?
You do need another key space, but you can still use the 
NetworkTopologyStrategy. 
Just set the strategy options to be dc1: 2 and dc2: 0. (check the docs for CLI 
and CQL for exact strategy options). 

 What's the difference between LocalStrategy and SimpleStrategy?
LocalStrategy is used by System keyspaces and secondary indexes to store data 
on a local node only. You do not want that. 

IMHO better to use NetworkTopologyStrategy as above than simple. 

Cheers

-
Aaron Morton
Freelance Cassandra Developer
New Zealand

@aaronmorton
http://www.thelastpickle.com

On 25/02/2013, at 10:41 AM, Keith Wright kwri...@nanigans.com wrote:

 Hi all,
 
I have a cluster with 2 data centers with an RF 2 keyspace using network 
 topology on 1.1.10.  I would like to configure it such that some of the data 
 is not cross data center replicated but is replicated between the nodes of 
 the local data center.  I assume my only options are to create another 
 cluster or to create another keyspace using LocalStrategy strategy?  What's 
 the difference between LocalStrategy and SimpleStrategy?
 
 Thanks!

cluster with cross data center and local

2013-02-25 Thread Keith Wright 
Hi all,

   I have a cluster with 2 data centers with an RF 2 keyspace using network 
topology on 1.1.10.  I would like to configure it such that some of the data is 
not cross data center replicated but is replicated between the nodes of the 
local data center.  I assume my only options are to create another cluster or 
to create another keyspace using LocalStrategy strategy?  What's the difference 
between LocalStrategy and SimpleStrategy?

Thanks!