Hi, On one of our cluster (3400 OSD, ~25PB, 12.2.4), we incremented pg_num & pgp_num on one pool (EC 4+2) from 32k to 64k. After that cluster started to be instable for one hour, pgs were inactive (some activating, some peering). Any idea what bottlenecks we hit? Any ideas what should I change in configuration of ceph/os ? -- Best Regards, Rafał Wądołowski _______________________________________________ Ceph-large mailing list Ceph-large@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-large-ceph.com