Sharing Cassandra with Solandra

[AJ <aj...@dude.podzone.net>]

Hi everyone,

Would anyone care to talk about their experiences with using Solandra 
along side another application that uses Cassandra (also on the same 
node)?  I'm curious about any resource contention issues or 
compatibility between C* versions and Sol.  Also, I read the developer 
somewhere say that you have to run Solandra on every C* node in the 
ring.  I'm not sure if I interpreted that correctly.  Also, what's the 
index size to data size ratio to expect (ballpark)?  How does it 
perform?  Any caveats?

Thanks!
aj

Re: Sharing Cassandra with Solandra

[AJ <aj...@dude.podzone.net>]

On 6/27/2011 3:39 PM, David Strauss wrote:
> On Mon, 2011-06-27 at 15:06 -0600, AJ wrote:
>> Would anyone care to talk about their experiences with using Solandra
>> along side another application that uses Cassandra (also on the same
>> node)?  I'm curious about any resource contention issues or
>> compatibility between C* versions and Sol.  Also, I read the developer
>> somewhere say that you have to run Solandra on every C* node in the
>> ring.  I'm not sure if I interpreted that correctly.  Also, what's the
>> index size to data size ratio to expect (ballpark)?  How does it
>> perform?  Any caveats?
> We're currently keeping the clusters separate at Pantheon Systems
> because our core API (which runs on standard Cassandra) is often ready
> for the next Cassandra version at a different time than Solandra.
> Solandra recently gained dual 0.7/0.8 support, but we're still opting to
> use the version on Cassandra that Solandra is primarily being built and
> tested on (which is currently 0.8).

Thanks.  But, I'm finally cluing in that Solandra is also developed by 
DataStax, so I feel safer about future compatibility.

Re: Sharing Cassandra with Solandra

[David Strauss <da...@davidstrauss.net>]

On Mon, 2011-06-27 at 15:06 -0600, AJ wrote:
> Would anyone care to talk about their experiences with using Solandra 
> along side another application that uses Cassandra (also on the same 
> node)?  I'm curious about any resource contention issues or 
> compatibility between C* versions and Sol.  Also, I read the developer
> somewhere say that you have to run Solandra on every C* node in the 
> ring.  I'm not sure if I interpreted that correctly.  Also, what's the
> index size to data size ratio to expect (ballpark)?  How does it 
> perform?  Any caveats?

We're currently keeping the clusters separate at Pantheon Systems
because our core API (which runs on standard Cassandra) is often ready
for the next Cassandra version at a different time than Solandra.
Solandra recently gained dual 0.7/0.8 support, but we're still opting to
use the version on Cassandra that Solandra is primarily being built and
tested on (which is currently 0.8).