CMS heap too large will have long GC. you may try reduce heap on 1 node to see. or go GC1 if it is easy way.
Thanks, Jim On Tue, Aug 3, 2021 at 3:33 AM manish khandelwal < manishkhandelwa...@gmail.com> wrote: > Long GC (1 seconds /2 seconds) pauses seen during repair on the > coordinator. Running full repair with partition range option. GC collector > is CMS and heap is 14G. Cluster is 7+7. Cassandra version is 3.11.2. Not > much traffic when repair is running. What could be the probable cause of > long gc pauses? What things should I look into? > > Regards > Manish >