On 4 October 2010 10:58, Utku Can Topçu <u...@topcu.gen.tr> wrote: > Recently I've tried to upgrade (hw upgrade) one of the nodes in my cassandra > cluster from ec2-small to ec2-large.
Something that bit me on this (I've done it with both Cassandra and Hadoop boxes, and some problems might be more Hadoopy related) is hostname. You need to change /etc/hostname and probably (unless you're happy to reboot again) the commandline of this too, to change it in the current instance. I found it best to drop all Cass instances (drain then stop), just to be a bit more confident. j.