Hi , On a cluster with 10 nodes, Out of 20K/seconds Native-Transports, 200/seconds of them blocked. They are mostly small single writes. Also I'm expriencing random read delays, which i suspect the filled native queue. On all nodes, cpu usage is less than 20 percent, and there is no problem in memory and disk usage so far. I'm going to fix all native blocks . I'm aware of two parameters to tune it: native_transport_max_threads max_queued_native_transport_requests I think that i should increase native_transport_max_threads until native blocks be 0 on each node and also i would monitor the impact on cpu and ram usage. The reason to increase only native_transport_max_threads and not changing max_queued_native_transport_requests is that read requests need to be processed quickly instead of waiting in any queue. Is this a good approach to tune cassandra cluster? Should i care for 0 native blocks or its normal in heavy write scenario? Thanks in advance Sent using Zoho Mail
