> Op 15 augustus 2016 om 15:27 schreef Ira Cooper <ira@xxxxxxxxxxx>: > > > Have you tried the ceph VFS module in Samba yet? > Yes. That works, but the performance is a lot lower. So for that we are testing/using the CephFS kernel client. I would also like to see the VFS module upstream in Samba, you still need to manually patch it in. Wido > -Ira > > On Mon, Aug 15, 2016 at 9:23 AM, Wido den Hollander <wido@xxxxxxxx> wrote: > > > Hi, > > > > I'm running into a issue in combination of CephFS and Samba and I was > > wondering if a dev knew what is happening here. > > > > The situation: > > - Jewel cluster > > - CephFS kernel client version 4.7 > > - Samba re-export of CephFS > > - Mount options: rw,noatime,acl > > > > A copy of a 15GB file results in Samba hanging in status D: > > > > root@hlms-zaken-01:~# ps aux|grep smb|grep D > > jongh 8887 0.0 0.0 376656 19068 ? D 14:42 0:00 > > /usr/sbin/smbd -D > > jongh 9740 0.0 0.0 377380 19244 ? D 14:49 0:00 > > /usr/sbin/smbd -D > > root@hlms-zaken-01:~# cat /proc/8887/stack > > [<ffffffff8132d353>] call_rwsem_down_write_failed+0x13/0x20 > > [<ffffffff8121a145>] vfs_setxattr+0x55/0xb0 > > [<ffffffff8121a2a5>] setxattr+0x105/0x170 > > [<ffffffff81203aa1>] filename_lookup+0xf1/0x180 > > [<ffffffff8120369f>] getname_flags+0x6f/0x1e0 > > [<ffffffff8121a3bd>] path_setxattr+0xad/0xe0 > > [<ffffffff8121a4f0>] SyS_setxattr+0x10/0x20 > > [<ffffffff815e8b76>] entry_SYSCALL_64_fastpath+0x1e/0xa8 > > [<ffffffffffffffff>] 0xffffffffffffffff > > root@hlms-zaken-01:~# cat /proc/9740/stack > > [<ffffffff8132d353>] call_rwsem_down_write_failed+0x13/0x20 > > [<ffffffff8121a145>] vfs_setxattr+0x55/0xb0 > > [<ffffffff8121a2a5>] setxattr+0x105/0x170 > > [<ffffffff81203aa1>] filename_lookup+0xf1/0x180 > > [<ffffffff8120369f>] getname_flags+0x6f/0x1e0 > > [<ffffffff8121a3bd>] path_setxattr+0xad/0xe0 > > [<ffffffff8121a4f0>] SyS_setxattr+0x10/0x20 > > [<ffffffff815e8b76>] entry_SYSCALL_64_fastpath+0x1e/0xa8 > > [<ffffffffffffffff>] 0xffffffffffffffff > > root@hlms-zaken-01:~# > > > > Now, when I look in /sys/kernel/debug/ceph/*/osdc / mdsc there are no > > outstanding requests to the OSDs or MDS. > > > > Both these calls just hang for ever on these requests and they don't > > continue. > > > > Any pointers where to start looking for this? I tried the 4.4 kernel > > before, it gave me the same hang. So that's why I upgraded to 4.7 to see if > > it was fixed there. > > > > The Ceph cluster is currently backfilling 17 PGs, but this also happend > > when HEALTH_OK was around. > > > > There are no block or slow requests in the cluster. > > > > Wido > > -- > > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
