Re: Single slow node dramatically reduces cluster write throughput regardless of CL

order batch log replica selection could mitigate this exact issue, but may have other tradeoffs to batch log guarantees. On Dec 14, 2022, at 11:19 AM, Sarisky, Dan wrote: We issue writes to Cassandra as logged batches(RF=3, Consistency levels=TWO, QUORUM, or LOCAL_QUORUM) On clusters of any

Single slow node dramatically reduces cluster write throughput regardless of CL

We issue writes to Cassandra as logged batches(RF=3, Consistency levels=TWO, QUORUM, or LOCAL_QUORUM) On clusters of any size - a single extremely slow node causes a ~90% loss of cluster-wide throughput using batched writes. We can replicate this in the lab via CPU or disk throttling. I obse