are you able to open a connection from one of the nodes to a node on the other side? us-east to us-west? could your problem be as simple as connectivity and/or security group configuration?
On Thu, Jun 23, 2011 at 1:51 PM, pankaj soni <pankajsoni0...@gmail.com> wrote: > hey, > I have got my ec2 multi-dc across AZ's but in same region us-east. > Now I am trying to deploy cassandra over multiple regions that is ec2 us > west, singapore and us-east. I have edited the config file as > sasha's reply below. > though when I run nodetool in each DC, I only see the nodes from that > region. That is EC2 US west is showing only 2 nodes which are up in that > region > but not the other 2 which are there in US-east. > Kindly suggest a solution. > -thanks > On Wed, Apr 27, 2011 at 5:45 PM, Sasha Dolgy <sdo...@gmail.com> wrote: >> >> Hi, >> >> If I understand you correctly, you are trying to get a private ip in >> us-east speaking to the private ip in us-west. to make your life >> easier, configure your nodes to use hostname of the server. if it's >> in a different region, it will use the public ip (ec2 dns will handle >> this for you) and if it's in the same region, it will use the private >> ip. this way you can stop worrying about if you are using the public >> or private ip to communicate with another node. let the aws dns do >> the work for you. >> >> just make sure you are using v0.8 with SSL turned on and have the >> appropriate security group definitions ... >> >> -sasha >> >> >> >> On Wed, Apr 27, 2011 at 1:55 PM, pankajsoni0126 >> <pankajsoni0...@gmail.com> wrote: >> > I have been trying to deploy Cassandra cluster across regions and for >> > that I >> > posted this "IP address resolution in MultiDC setup". >> > >> > But when it is to get nodes talking to each other on different regions >> > say, >> > us-east and us-west over private IP's of EC2 nodes I am facing problems. >> > >> > I am assuming if Cassandra is built for multi-DC setup it should be >> > easily >> > deployed with node1's DC1's public IP listed as seed in all nodes in DC2 >> > and >> > to gain idea about network topology? I have hit a dud for deployment in >> > such >> > scenario. >> > >> > Or is it there any way possible to use Private IP's for such a scenario >> > in >> > EC2, as Public Ip are less secure and costly? > > -- Sasha Dolgy sasha.do...@gmail.com
