[Lustre-discuss] Frequent appearence of LustreError: no handle for file close ino

[Christos Theodosiou]

Hi all,

our lustre installation uses two failover MDSes, which serve 10
file-systems. We recently upgraded from 1.8.1.1 to 1.8.2 version.

By monitoring the MDSes I noticed that we get frequent error messages
(1-4 times/hour) which looklike this:

Apr 16 10:36:10 lustre01 kernel: LustreError:
31386:0:(mds_open.c:1666:mds_close()) @@@ no handle for file close ino
4011004: cookie 0x699184f2b7f715d6  req at ffff8100621d2c00
x1332632126967249/t0 o35->60822f67-b798-f355-d5b1-54d7d7fa9f15@:0/0 lens
408/472 e 0 to 0 dl 1271403376 ref 1 fl Interpret:/0/0 rc 0/0
Apr 16 10:36:10 lustre01 kernel: LustreError:
31386:0:(mds_open.c:1666:mds_close()) Skipped 1 previous similar message
Apr 16 10:36:10 lustre01 kernel: LustreError:
31386:0:(ldlm_lib.c:1848:target_send_reply_msg()) @@@ processing error
(-116)  req at ffff8100621d2c00 x1332632126967249/t0
o35->60822f67-b798-f355-d5b1-54d7d7fa9f15@:0/0 lens 408/400 e 0 to 0 dl
1271403376 ref 1 fl Interpret:/0/0 rc -116/0
Apr 16 10:36:10 lustre01 kernel: LustreError:
31386:0:(ldlm_lib.c:1848:target_send_reply_msg()) Skipped 1 previous
similar message

and
Apr 16 11:07:51 lustre02 kernel: LustreError:
6305:0:(mds_open.c:1666:mds_close()) @@@ no handle for file close ino
2264949: cookie 0xc4e85523602d2686  req at ffff81006787c000
x1332654888280600/t0 o35->52c78d24-f0da-a56e-9bc5-2e16e6e78790@:0/0 lens
408/976 e 0 to 0 dl 1271405277 ref 1 fl Interpret:/0/0 rc 0/0
Apr 16 11:07:51 lustre02 kernel: LustreError:
6305:0:(ldlm_lib.c:1848:target_send_reply_msg()) @@@ processing error
(-116)  req at ffff81006787c000 x1332654888280600/t0
o35->52c78d24-f0da-a56e-9bc5-2e16e6e78790@:0/0 lens 408/688 e 0 to 0 dl
1271405277 ref 1 fl Interpret:/0/0 rc -116/0

I would like to ask:
a) is this a critical error message?
b) is there any way to find out more info about it. e.g. filesystem,
filename and lustre client that are related to this error?
c) is there any way to resolve this errors?

Thank you 
in advance