There are many of these errors in Cassandra's system.log. I'm not aware that I'm using TFramedTransport but perhaps Hector is configured to use it. How can I get rid of these errors?
ERROR [Selector-Thread-6] 2012-05-16 10:59:25,022 TNonblockingServer.java (line 467) Read an invalid frame size of 0. Are you using TFramedTransport on the client side?