Re: vnodes on aws

2013-12-06 Thread Robert Coli
On Thu, Dec 5, 2013 at 6:58 PM, Andrey Ilinykh wrote: > > > > On Thu, Dec 5, 2013 at 3:31 PM, Jayadev Jayaraman wrote: > >> Availability zones are analogous to racks not data centres . EC2 regions >> are equivalent to data centres. >> > Yes, this is what I meant. I guess my question is - is possi

Re: vnodes on aws

2013-12-05 Thread Andrey Ilinykh
On Thu, Dec 5, 2013 at 3:31 PM, Jayadev Jayaraman wrote: > Availability zones are analogous to racks not data centres . EC2 regions > are equivalent to data centres. > Yes, this is what I meant. I guess my question is - is possible to put row in every rack using vnodes? Thank you, Andrey >

Re: vnodes on aws

2013-12-05 Thread Jayadev Jayaraman
Availability zones are analogous to racks not data centres . EC2 regions are equivalent to data centres. You can use vnodes if you want to deploy a cluster across multiple regions (data centres) with one availability zone per region. Each region maintains a separate ring. I don't know if you can

vnodes on aws

2013-12-05 Thread Andrey Ilinykh
Hello everybody! We run cassandra 1.1 on ec2 instances. We use three availability zones, the replication factor is 3 also. NetworkTopologyStrategy guarantees each row is replicated in all availability zones. So, if we lost one zone quorum operations still work. We think about to upgrade to 1.2. Vir