[Lustre-discuss] ldlm_cli_cancel_* , 1.6.5.1

[Heiko Schroeter]

Hello,

we use LUSTRE with AUTOFS to circumvent (hopefully) the evicted client 
statahead problem and disconnect lustre client when not in use.

We get the following messages just before the client is unmounted. It is 
reproducable and happens every unmount.

The functionality of further client mounts and unmounts is not affected i.e. 
lustre keeps on working nice and smoothly.

Is this just normal lustre behaviour before unmounting a client ? So nothing 
to worry about ?
Or is this an indicator for something broken or ill defined ?

Thanks and Regards
Heiko

<snip>
Aug 18 09:12:36 quadcore12 Lustre: Client scia-client has started
Aug 18 09:13:48 quadcore12 LustreError: 32585:0:
(ldlm_request.c:986:ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: 
canceling anyway
Aug 18 09:13:48 quadcore12 LustreError: 32585:0:
(ldlm_request.c:986:ldlm_cli_cancel_req()) Skipped 3 previous similar 
messages
Aug 18 09:13:48 quadcore12 LustreError: 32585:0:
(ldlm_request.c:1575:ldlm_cli_cancel_list()) ldlm_cli_cancel_list: -108
Aug 18 09:13:48 quadcore12 LustreError: 32585:0:
(ldlm_request.c:1575:ldlm_cli_cancel_list()) Skipped 3 previous similar 
messages
Aug 18 09:13:48 quadcore12 Lustre: client ffff8102229e4800 umount complete
<snap>

Lustre 1.6.5.1 source compilation against patched 2.6.22.19 vanilla-kernel.
./configure  --disable-liblustre --with-linux=/usr/src/linux-2.6.22.19

MDS setup:
mkfs.lustre --fsname=scia --mdt --mgs --failnode=mds2 /dev/drbd0

OST(s) setup:
mkfs.lustre --param="failover.mode=failout" --fsname 
scia --ost --mkfsoptions='-i 2097152 -E stride=16 -b 
4096' --mgsnode=mds1 at tcp0 /dev/sd{x}