Database Reference
In-Depth Information
CHAPTER 11
Upgrading Cassandra and
Troubleshooting
So far, topics discussed in this topic 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 up-
grading 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.
We have discussed various troubleshooting tips in different places in the topic. In
this chapter, we will summarize several key ones that address issues you may well en-
counter.
The topics in this chapter include:
An overview of the Cassandra 2.1 release
Cassandra version upgrade
Troubleshooting tips
The road ahead with Cassandra
Let's start by discussing the new features introduced with the recently released Cas-
sandra 2.1.
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