PS: https://bugzilla.kernel.org/show_bug.cgi?id=105671
There was (solved) deadlock problem with CLONE_FS -> CLONE_VFORK. Not restarted
mds after solution, so don't know how it related, but very like to.
Short: process A (daemon) CLONE_FS -> B (workers) CLONE_VFORK -> C (clients);
looks like freezed by CLONE_VFORK (B) freeze (A) & others (B), (but sometime on
PREEMPT, always - on PREEMPT_NONE).
I will restart mds this night, will look to restart time.
Dzianis Kahanovich пишет:
Yan, Zheng пишет:
It seems you have 16 mounts. Are you using kernel client or fuse
client, which version are they?
1) On every of 4x ceph node:
4.1.8 kernel mount to /mnt/ceph0 (used only for samba/ctdb lockfile);
fuse mount to /mnt/ceph1 (some used);
samba cluster (ctdb) with vfs_ceph;
2) On 2 additional out-of-cluster (service) nodes:
4.1.8 (now 4.2.3) kernel mount;
4.1.0 both mounts;
3) 2 VMs:
kernel mounts (most active: web & mail);
4.2.3;
fuse mounts - same version with ceph;
--
WBR, Dzianis Kahanovich AKA Denis Kaganovich, http://mahatma.bspu.unibel.by/
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
