I'm also seeing an issue with not being able to iterate over all keys in Cassandra 0.6.4. In my unit test I create 20 keys (0-19) and iterate with a batch size of 6. This is what I get.
Cassandra 0.6.4 start key: "" 9, 14, 4, 15, 11, 18 start key: 18 18, 7, 17, 7, 17 start key:17 17 Cassandra 0.6.3 start key: "" 3, 6, 5, 19, 10, 0 start key: 0 0, 8, 2, 16, 13, 1 start key: 1 1, 12, 9, 14, 4, 15 start key: 15 15, 11, 15, 11, 18, 7 start key: 7 7, 17, 7, 17 In both versions I get duplicates but in 0.6.4 I don't get the complete set of keys back. The complete set is returned in 0.6.3.
