Re: Reduce num_tokens on single node cluster

2021-08-04 Thread Maxim Parkachov
On Fri, Jul 30, 2021 at 7:21 PM Bowen Song wrote: > Since you have only one node, sstableloader is unnecessary. Copy/move the > the data directory back to the right place and restart Cassandra or run > 'nodetool > refresh' is sufficient. Do not restore the 'system' keyspace, but do > restore the

Re: Increased read latency with Cassandra >= 3.11.7

2021-08-04 Thread Maxim Parkachov
Dear community, is someone working on this ticket? This is clearly performance regression and we stuck with 3.11.6 and could not upgrade to latest version. Regards, Maxim. On Mon, Feb 22, 2021 at 10:37 AM Ahmed Eljami wrote: > Hey, > I have created the issue, here => > https://issues.apache.or

Re: Long GC pauses during repair

2021-08-04 Thread manish khandelwal
Can inter dc latency cause high gc pauses? Other clusters working fine with same configuration? Only this particular cluster is giving long GC pauses during repair. Regards Manish On Tue, Aug 3, 2021 at 6:42 PM Jim Shaw wrote: > CMS heap too large will have long GC. you may try reduce heap on

Re: Long GC pauses during repair

2021-08-04 Thread Jeff Jirsa
High inter-dc latency could make writes more likely not to land, which would make repair do more work. Also true for read and writes - waiting for the cross-dc request will keep threads around longer, so more concurrent work, so more GC. May be that the GC is coming from the read/write path, and