Hi daemeon, We have already tuned the TCP settings to improve the bandwidth. Earlier we had lot of hint and mutation msg drop which were gone after tuning TCP. Moreover we are writing with CL local quorum at US side, so ack is taken from local DC. I m still concern what could be reason of increase mutation count.
On 2021/07/19 19:55:52 daemeon reiydelle wrote: > You may want to think about the latency impacts of a cluster that has one > node "far away". This is such a basic design flaw that you need to do some > basic learning, and some basic understanding of networking and latency. > > > > > > On Mon, Jul 19, 2021 at 10:38 AM MyWorld <ti...@gmail.com> wrote: > > > Hi all, > > > > Currently we have a cluster with 2 DC of 3 nodes each. One DC is in GCP-US > > while other is in GCP-India. Just to add here, configuration of every node > > accross both DC is same. Cpu-6, Ram-32gb, Heap-8gb > > > > We do all our write on US data center. While performing a bulk write on > > GCP US, we observe normal load of 1 on US while this load at GCP India > > spikes to 10. > > > > On observing tpstats further in grafana we found mutation stage at GCP > > India is going to 1million intermittently though our overall write is > > nearly 300 per sec per node. Don't know the reason but whenever we have > > this spike, we are having load issue. > > Please help what could be the possible reason for this? > > > > Regards, > > Ashish > > >
