Hi, I use the "current 2.1.16" (commit cdd535fcac4ba79bb371e8373c6504d9e3978853) on production in 5 DCs (82 nodes) out of 7 and it works well!I've just had to add a MBean to track changes of the NTR queue length on top of cdd535f. This allow to make correlations with other metrics and see the impact of a change. I've filed a ticket with patches for 2.1 and the trunk https://issues.apache.org/jira/browse/CASSANDRA-12758 Do you think this MBean could land in the final 2.1.16 since it goes hand-in-hand with CASSANDRA-11363?
Thanks, Romain
