Re: Deployment on AWS and replication strategies

2010-04-04 Thread Mike Gallamore
Pluggable placement: that is cool. It wasn't something that was obvious to me that was available from the documentation I read. I thought maybe the the rackaware and rackunaware were hard coded in somewhere. I'm not a java developer so I haven't looked at the code much. That said I'll take a lo

Re: Deployment on AWS and replication strategies

2010-04-04 Thread Benjamin Black
On Sat, Apr 3, 2010 at 8:23 PM, Mike Gallamore wrote: >> > I didn't mean a real time determination, more of if the nodes aren't > identical. For example if you have a cluster made up of a bunch of EC2 light > instances and decide to add a large instance, it would be nice if the new > node would

Re: Deployment on AWS and replication strategies

2010-04-03 Thread Mike Gallamore
Hi Benjamin, Thanks for the reply. On 2010-04-03, at 8:12 PM, Benjamin Black wrote: > On Sat, Apr 3, 2010 at 3:41 PM, Mike Gallamore > wrote: >> >> Useful things that nodes could advertise: >> >> data-centre they are in, > > This is what the snitches do. Cool. > >> performance info: mem, CPU

Re: Deployment on AWS and replication strategies

2010-04-03 Thread Benjamin Black
On Sat, Apr 3, 2010 at 3:41 PM, Mike Gallamore wrote: > > Useful things that nodes could advertise: > > data-centre they are in, This is what the snitches do. > performance info: mem, CPU etc (these could be used to more intelligently > decide how to partition the data that the new node gets fo

Re: Deployment on AWS and replication strategies

2010-04-03 Thread Mike Gallamore
Hi everyone, At my work we are in the early stages of moving our data which lives on EC2 machines from a Flare/memcache system to Cassandra so your chat has been interesting to me. I realize that this might complicate things and make things less "simple" but would it be useful for the nodes th