Hi Jan, we had 65k for pid_max, which made kernel.threads-max = 1030520. or kernel.threads-max = 256832 (looks like it depends on the number of cpus?) currently we've root@ceph1-store209:~# sysctl -a | grep -e thread -e pid kernel.cad_pid = 1 kernel.core_uses_pid = 0 kernel.ns_last_pid = 60298 kernel.pid_max = 65535 kernel.threads-max = 256832 vm.nr_pdflush_threads = 0 root@ceph1-store209:~# ps axH |wc -l 17548 we'll see how it behaves once puppet has come by and adjusted it. Thx! Benedikt _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com