Hi all, There's an interesting paper published where the authors describe a project for failure testing in distributed systems. As an example the show how they could find issues in Hadoop HDFS. They also mention they are working on similar tests for Cassandra. Worth a read. Hopefully they will publish their results about Cassandra and the source code involved..
http://www.eecs.berkeley.edu/Pubs/TechRpts/2010/EECS-2010-98.html /Johan