In 0.6.2 I disabled hinted handoff, however tpstats and cfstats report seems odd.
On all servers in the cluster I have: <HintedHandoffEnabled>false</HintedHandoffEnabled> tpstats reports 5 completed handoffs. $ nodetool -h cass25 -p 9004 tpstats Pool Name Active Pending Completed FILEUTILS-DELETE-POOL 0 0 2 STREAM-STAGE 0 0 0 RESPONSE-STAGE 0 0 5903099 ROW-READ-STAGE 0 0 669093 LB-OPERATIONS 0 0 0 MESSAGE-DESERIALIZER-POOL 1 0 6595504 GMFD 0 0 35947 LB-TARGET 0 0 0 CONSISTENCY-MANAGER 0 0 669095 ROW-MUTATION-STAGE 0 0 644360 MESSAGE-STREAMING-POOL 0 0 0 LOAD-BALANCER-STAGE 0 0 0 FLUSH-SORTER-POOL 0 0 0 MEMTABLE-POST-FLUSHER 0 0 7 FLUSH-WRITER-POOL 0 0 7 AE-SERVICE-STAGE 0 0 1 HINTED-HANDOFF-POOL 0 0 5 In data/system/* there are only LocationInfo files, so looks like hinted handoff is indeed disabled and cfstats does indicate there are 0 bytes, however it also indicates of 32 reads which I didn't expect (cluster has been up for a few hours). $ nodetool -h cass25 -p 9004 tpstats ... Column Family: HintsColumnFamily SSTable count: 0 Space used (live): 0 Space used (total): 0 Memtable Columns Count: 0 Memtable Data Size: 0 Memtable Switch Count: 0 Read Count: 32 Read Latency: 0.062 ms. Write Count: 0 Write Latency: NaN ms. Pending Tasks: 0 Key cache capacity: 1 Key cache size: 0 Key cache hit rate: NaN Row cache: disabled Compacted row minimum size: 0 Compacted row maximum size: 0 Compacted row mean size: 0 Any idea why is this happening?