Thank you so much for your reply.
Currently I have two Cassandra nodes running in ring. I have installed Cassandra on following location;
Now my questions are;
1. How we upgrade (Step by Step version like 0.8.1 to 0.8.5, then 0.8.5 to 1.0.0……….to 1.1.0)
2. Once I take snapshot, is it have full data or only one node data?
3. Once I download apache-cassandra-0.8.5-bin.tar.gz then after untar, What Can I do? I only move few folder from previous version directory to new version directory or move all directories and files.
4. After moving data is there any command required ?
Thanks & Regards