We personally use the EC2Snitch, however, we don't have the multi-region requirements you do,
-Mike ________________________________ From: Alain RODRIGUEZ <arodr...@gmail.com> To: user@cassandra.apache.org Sent: Thursday, June 5, 2014 9:14 AM Subject: Re: VPC AWS I think you can define VPC subnet to be public (to have public + private IPs) or private only. Any insight regarding snitches ? What snitch do you guys use ? 2014-06-05 15:06 GMT+02:00 William Oberman <ober...@civicscience.com>: I don't think traffic will flow between "classic" ec2 and vpc directly. There is some kind of gateway bridge instance that sits between, acting as a NAT. I would think that would cause new challenges for: > >-transitions >-clients > >Sorry this response isn't heavy on content! I'm curious how this thread >goes... > > >Will > > >On Thursday, June 5, 2014, Alain RODRIGUEZ <arodr...@gmail.com> wrote: > >Hi guys, >> >> >>We are going to move from a cluster made of simple Amazon EC2 servers to a >>VPC cluster. We are using Cassandra 1.2.11 and I have some questions >>regarding this switch and the Cassandra configuration inside a VPC. >> >> >>Actually I found no documentation on this topic, but I am quite sure that >>some people are already using VPC. If you can point me to any documentation >>regarding VPC / Cassandra, it would be very nice of you. We have only one DC >>for now, but we need to remain multi DC compatible, since we will add DC very >>soon. >> >> >>Else, I would like to know if I should keep using EC2MultiRegionSnitch or >>change the snitch to anything else. >> >> >>What about broadcast/listen ip, seeds...? >> >> >>We currently use public ip as for broadcast address and for seeds. We use >>private ones for listen address. Machines inside the VPC will only have >>private IP AFAIK. Should I keep using a broadcast address ? >> >> >>Is there any other incidence when switching to a VPC ? >> >> >>Sorry if the topic was already discussed, I was unable to find any useful >>information... > >-- >Will Oberman >Civic Science, Inc. >6101 Penn Avenue, Fifth Floor >Pittsburgh, PA 15206 >(M) 412-480-7835 >(E) ober...@civicscience.com >
