Hello, We moved to cassandra 1.2.9 from 1.0.11 to take advantage of the off-heap bloom filters and other improvements.
We see a lot of messages dropped under high load conditions. We noticed that when we do heavy read AND write simultaneously (we read first and check whether the key exists if not we write it) Cassandra heap increases dramatically and then gossip marks the node down (as a result of high load on the node). Under heavy 'reads only' we don't see this behavior. Has anyone seen this behavior ? any suggestions. Thanks !