ceph-fuse inconsistent filesystem view from different clients

[Mykola Dvornik <mykola.dvornik@xxxxxxxxx>]

Hi guys,

I have 16 OSD/1MON/1MDS ceph cluster serving CephFS.

The FS is mounted on 11 clients using ceph-fuse. In some cases there are multiple ceph-fuse processes per client, each with its own '-r' option.

The problem is that some of the clients get significantly out-of-sync. Flushing caches, 'touching' things, etc. does not help.

ceph -s reports 'Client XXX failing to respond to cache pressure'.

Although I've increased "mds_cache_size" to "1000000", perf dump mds still reports inodes exceeding the inode_max. I cannot confirm yet, but it appears to me that the out-of-sync issue started to appear since the mds_cache_size increase.

mds log does not have anything suspicious in it.

So is there any way to debug ceph-fuse?

Regards,

--

 Mykola 

_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com