If you login to one of the nodes, can you telnet to port 7000 on the other node?
If not, then almost certainly it's a firewall/Security Group issue. You can find out the security groups for any node by logging in, and then running: % curl "http://169.254.169.254/latest/meta-data/security-groups"; Assuming that both nodes are in the same security group, ensure that the SG is configured to allow other members of the SG to communicate on port 7000 to each other. HTH, Dave Viner On Tue, Feb 22, 2011 at 8:59 PM, Himanshi Sharma <himanshi.sha...@tcs.com>wrote: > > Hi, > > I am new to Cassandra. I m running Cassandra on EC2. I configured Cassandra > cluster on two instances in different regions. > But when I am trying the nodetool command with ring option, I am getting > only single node. > > How to make these two nodes communicate with each other. I have already > opened required ports. i.e 7000, 8080, 9160 in respective > security groups. Plz help me with this. > > Regards, > Himanshi Sharma > > > =====-----=====-----===== > Notice: The information contained in this e-mail > message and/or attachments to it may contain > confidential or privileged information. If you are > not the intended recipient, any dissemination, use, > review, distribution, printing or copying of the > information contained in this e-mail message > and/or attachments to it are strictly prohibited. If > you have received this communication in error, > please notify us by reply e-mail or telephone and > immediately and permanently delete the message > and any attachments. Thank you > > >
