Hello, using 2.1.8, 3 nodes (m4.10xlarge, ESB SSD-based), vnodes=256, RF=3, we are trying to add a 4th node.
The two options to my knowledge, mainly affecting throughput, namely stream output and compaction throttling has been set to very high values (e.g. stream output = 800 Mbit/s resp. compaction throughput = 500 Mbyte/s) or even set to 0 (unthrottled) in cassandra.yaml + process restart. In both scenarios (throttling with high values vs. unthrottled), the 4th node is streaming from one node capped ~ 180-200Mbit/s, according to our SFM. The nodes have plenty of resources available (10Gbit, disk io/iops), also confirmed by e.g. iperf in regard to NW throughput and write to / read from disk in the area of 200 MByte/s. Are there any other known throughput / bootstrap limitations, which basically outrule above settings? Thanks, Thomas The contents of this e-mail are intended for the named addressee only. It contains information that may be confidential. Unless you are the named addressee or an authorized designee, you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it. Dynatrace Austria GmbH (registration number FN 91482h) is a company registered in Linz whose registered office is at 4040 Linz, Austria, Freist?dterstra?e 313
