[Lustre-discuss] LustreError codes -114 and -16 (ldlm_lib.c:1919:target_send_reply_msg())

[Chris Horn]

Hard to say what's going on without additional context. The first message relates to an MGS_CONNECT rpc (o250), the second messages relates to an MDS_CONNECT rpc (o38). I would suspect network issues.

Chris Horn

On Feb 15, 2012, at 12:46 PM, Marina Cacciagrano wrote:

Thanks!
Maybe  that means that the drives are a bit too slow to respond to the requests...
Can that be related to a problem with lnet as well?

marina


Framestore
9 Noel Street London W1F 8GH
[T] +44 (0)20 7208 2600  [F] +44 (0)20 7208 2626

----- Original Message -----
From: "Chris Horn" <hornc at cray.com<mailto:hornc at cray.com>>
To: "Marina Cacciagrano" <Marina.Cacciagrano at framestore.com<mailto:Marina.Cacciagrano at framestore.com>>
Cc: "<lustre-discuss at lists.lustre.org<mailto:lustre-discuss at lists.lustre.org>>" <lustre-discuss at lists.lustre.org<mailto:lustre-discuss at lists.lustre.org>>
Sent: Wednesday, 15 February, 2012 5:21:33 PM
Subject: Re: [Lustre-discuss] LustreError codes -114 and -16 (ldlm_lib.c:1919:target_send_reply_msg())

errno 16 is EBUSY (device or resource busy) and errno 114 is EALREADY (Operation already in progress).

Chris Horn

On Feb 15, 2012, at 10:52 AM, Marina Cacciagrano wrote:

Hello,
On all the nodes of a lustre 1.8.2 , I often see messages similar to the following  in /var/log/syslog:
LustreError: 8862:0:(ldlm_lib.c:1919:target_send_reply_msg()) @@@ processing error (-114)  req at ffff8103f97dc850 x1393780295030087/t0 o250->bfd79683-ce51-1e18-7f40-632c3a616b01 at NET_0x20000ac1054d2_UUID:0/0 lens 368/264 e 0 to 0 dl 1329235090 ref 1 fl Interpret:/0/0 rc -114/0
and
LustreError: 8963:0:(ldlm_lib.c:1919:target_send_reply_msg()) @@@ processing error (-16)  req at ffff81024b636400 x1393871458142225/t0 o38->e3e2f978-3cc1-c6f9-17cb-9ac846be7fae at NET_0x20000ac1138c2_UUID:0/0 lens 368/264 e 0 to 0 dl 1329300007 ref 1 fl Interpret:/0/0 rc -16/0

I cannot find the meaning of error codes -144 and -16.
Can anybody advise on what generates those errors?

A quick description of the configuration:
the lustre version is 1.8.2.
the system is made up by one MDS host and seven OSS hosts.
lnet is over 10Ge.


Regards,
marina


Framestore
9 Noel Street London W1F 8GH
[T] +44 (0)20 7208 2600  [F] +44 (0)20 7208 2626
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