Re: Running across multiple EC2 regions...

2011-07-29 Thread Vijay
Chris, It is internal to cassandra.(IEndpointStateChangeSubscriber)... the snitch basically starts gossiping via public ip and once it sees the Location of the node to be local (it gets notified via IESCS) and then switches to private IP (safely - flush and reconnect). hope this helps... I didnt i

Re: Running across multiple EC2 regions...

2011-07-29 Thread Chris Marino
Thanks Vijay, that helps a lot. FYI, I did read the comments but didn't understand what I was reading since I don't know what IECSC is?? Googled it but still came up empty. What is this?? Sorry, if this is obvious, but I'm pretty new to all this Thanks CM On Fri, Jul 29, 2011 at 3:18 PM,

Re: Running across multiple EC2 regions...

2011-07-29 Thread Vijay
"So, my question is: If we use the EC2 Snitch patch to set up across regions, will the instance's private IP/interface *ever* be used? Or will all traffic always go in and out of the public interface?? Using the public interface is slower and more expensive that the private interface. " If you use

Running across multiple EC2 regions...

2011-07-29 Thread Chris Marino
Hello, Me and some of my colleagues are about to start some experiments running Cassandra across EC2 regions using virtual networks and have some questions about how this is going to work. I've read these threads about patching the .yaml file to bind to the Listen address to the public IP... htt