Hi,
I upgraded to Cassandra 2.2.8 and noticed something weird in nodetool tpstats: Pool Name Active Pending Completed Blocked All time blocked MutationStage 0 0 116265693 0 0 ReadStage 1 0 56132474 0 0 RequestResponseStage 0 0 163640931 0 0 ReadRepairStage 0 0 3152856 0 0 CounterMutationStage 0 0 630690 0 0 Repair#26 1 4 1 0 0 Repair#48 1 2 3 0 0 HintedHandoff 1 1 1198 0 0 MiscStage 0 0 0 0 0 CompactionExecutor 0 0 111438 0 0 Repair#45 1 4 1 0 0 MemtableReclaimMemory 0 0 3399 0 0 Repair#30 1 4 1 0 0 PendingRangeCalculator 0 0 37 0 0 Repair#61 1 4 1 0 There are multiples "pools" named Repair#<repair number> which weren't there with Cassandra 2.1.16. These appear in the JMX metrics too. Do they go away eventually ? because this is making the tpstats output harder to read in my opinion