Hi Michael - Yes, 7000, 7001, 9042, 9160 are all open on EC2.

Issue was seeds address and listen_address were 127.0.0.1 and private_ip.

This will help anyone

http://stackoverflow.com/questions/20690987/apache-cassandra-unable-to-gossip-with-any-seeds


On Wed, Jan 29, 2014 at 1:12 AM, Michael Shuler <mich...@pbandjelly.org>wrote:

> Did you open up the ports so they can talk to each other?
>
> http://www.datastax.com/documentation/cassandra/2.0/
> webhelp/index.html#cassandra/install/installAMISecurityGroup.html
>
> --
> Michael
>

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