[lustre-discuss] errors 107 in syslog on client 2.8.0

[E.S. Rosenberg]

Hi Ekaterina,

On Mon, Jun 26, 2017 at 11:04 AM, Ekaterina Popova <Ekaterina.Popova at ihep.ru
> wrote:

> Greetings,
>
> We've installed lustre client 2.8.0 on Debian 8. Lustre is mounted, it
> works, but there are many errors in system logs such as:
>
> Jun 26 06:42:46 fs0003 kernel: [2996428.506714] LustreError: 11-0:
> lu-ihep-OST000f-osc-ffff88045fee0800: operation obd_ping to node
> 192.168.175.69 at tcp1 failed: rc = -107
> Jun 26 06:42:46 fs0003 kernel: [2996428.506720] Lustre:
> lu-ihep-OST0004-osc-ffff88045fee0800: Connection to lu-ihep-OST0004 (at
> 192.168.175.146 at tcp1) was lost; in progress operations using this service
> will wait for recovery to complete
> Jun 26 06:42:46 xxxx kernel: [2996428.506721] Lustre: Skipped 33 previous
> similar messages
> Jun 26 06:42:46 xxxx kernel: [2996428.508543] LustreError: Skipped 37
> previous similar messages
> Jun 26 06:42:46 xxxx kernel: [2996428.510080] LustreError: 167-0:
> lu-ihep-OST000f-osc-ffff88045fee0800: This client was evicted by
> lu-ihep-OST000f; in progress operations using this service will fail.
> Jun 26 06:42:46 fs0003 kernel: [2996428.510142] Lustre:
> lu-ihep-OST000b-osc-ffff88045fee0800: Connection restored to
> 192.168.175.144 at tcp1 (at 192.168.175.144 at tcp1)
>
> Our Lustre servers are not upgraded yet.
>
You should probably not be running the new client against such old servers,
this was not tested and though the combination may work we had issues with
2.8.0 client with an older server (not 100% sure anymore if it was 2.7.0 or
2.5.x) that just caused the Lustre OSS to hang.
Sorry that I can't be of more help,
Eli

>
> uname -s -r
> Linux 2.6.32-279.2.1.el6_lustre.gc46c389.x86_64
>
> cat /proc/fs/lustre/version
> lustre: 2.1.3
> kernel: patchless_client
> build:  RC3--PRISTINE-2.6.32-279.2.1.el6_lustre.gc46c389.x86_64
>
> Any help would be appreciated.
>
> Thanks in advance,
>
> Popova Ekaterina, IHEP
>
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