Upgrading Cassandra and Troubleshooting
So far, topics discussed in this book have included configuration, batch analytics, data modeling techniques, performance tuning, and various utilities. One important topic yet to be discussed is Cassandra version upgrades. The past one and half years have seen quick development and multiple Cassandra releases. Some of the changes introduced in recent releases have backward compatibility issues, which makes Cassandra version upgrading an important topic that needs to be addressed. The most recent release, at the time of this writing, is version 2.1, which includes a couple important new features we have not covered elsewhere.