[ceph-users] CEPHFS - MDS gracefull handover of rank 0

2021-01-27 Thread Martin Hronek
Hello fellow CEPH-users, currently we are updating our CEPH(14.2.16) and making changes to some config settings. TLDR: is there a way to make a graceful MDS active node shutdown without loosing the caps, open files and client connections? Something like handover active state, promote standby

[ceph-users] Latency spike investigations on all SSD hardware cluster

2021-01-14 Thread Martin Hronek
Hello fellow CEPH-users, we are currently investigating latency spikes in our CEPH(14.2.11) prod cluster, usually occurring when under heavy load. TLDR: Do you have an idea where to investigate some kv commit latency spikes on a CEPH cluster with a LSI 9300-8i HBA and all SSD(Intel, Micron) OSD