Upgrading Cassandra 0.6.x to 0.7.0

Just a brief recap of what manual steps are needed to upgrade Cassandra from 0.6.x to 0.7.0 using Debian packages:

  • Convert /etc/cassandra/storage-config.xml to /etc/cassandra/cassandra.yaml using the config-converter script. This currently does not seem to be included in the 0.7.0 .debs, so just grab a binary distribution to get hold of the script.

  • chown -R cassandra.cassandra /var/lib/cassandra/

  • Start Cassandra (typically using /etc/init.d/cassandra start)

  • Fire up jconsole, connect to localhost:8080 (or whatever JMX port you chose instead) and execute org.apache.cassandra.db -> StorageService -> Operations -> loadSchemaFromYAML