[Lustre-discuss] persistent client re-connect failure

Larry tsrjzq at gmail.com
Mon Mar 21 03:29:46 PDT 2011 

If you *only* deactivate it on mds, then you can still see the ost on
client, just not to write on it anymore.

On Mon, Mar 21, 2011 at 11:49 AM, Samuel Aparicio <saparicio at bccrc.ca> wrote:
> Follow up to this posting. I notice on the client that lctl device_list
> reports the following:
>
>  0 UP mgc MGC10.9.89.51 at tcp 5a76b5b6-82bf-2053-8c17-e68ffe552edc 5
>   1 UP lov lustre-clilov-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 4
>   2 UP mdc lustre-MDT0000-mdc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 5
>   3 UP osc lustre-OST0000-osc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 5
>   4 UP osc lustre-OST0001-osc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 5
>   5 UP osc lustre-OST0002-osc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 5
>   6 UP osc lustre-OST0003-osc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 4
>   7 UP osc lustre-OST0004-osc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 5
>   8 UP osc lustre-OST0005-osc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 5
>   9 UP osc lustre-OST0006-osc-ffff8100459a9c00
> 6775de4c-6c29-9316-a715-3472233477d1 5
>  10 UP lov lustre-clilov-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 4
>  11 UP mdc lustre-MDT0000-mdc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 5
>  12 UP osc lustre-OST0000-osc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 5
>  13 UP osc lustre-OST0001-osc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 5
>  14 UP osc lustre-OST0002-osc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 5
>  15 UP osc lustre-OST0003-osc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 4
>  16 UP osc lustre-OST0004-osc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 5
>  17 UP osc lustre-OST0005-osc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 5
>  18 UP osc lustre-OST0006-osc-ffff810c92f2b800
> 0ecd69f5-6793-fcb1-0e05-8851c99e5dc5 5
>  19 UP lov lustre-clilov-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 4
>  20 UP mdc lustre-MDT0000-mdc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 5
>  21 UP osc lustre-OST0000-osc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 5
>  22 UP osc lustre-OST0001-osc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 5
>  23 UP osc lustre-OST0002-osc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 5
>  24 UP osc lustre-OST0003-osc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 4
>  25 UP osc lustre-OST0004-osc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 5
>  26 UP osc lustre-OST0005-osc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 5
>  27 UP osc lustre-OST0006-osc-ffff81047a45c000
> 6a3d5815-4851-31b0-9400-c8892e11dae4 5
>
> However OST3 is non-existent, it was de-activated on the MDS - why would the
> clients think it exists?
>
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>
> Professor Samuel Aparicio BM BCh PhD FRCPath
> Nan and Lorraine Robertson Chair UBC/BC Cancer Agency
> 675 West 10th, Vancouver V5Z 1L3, Canada.
> office: +1 604 675 8200 lab website http://molonc.bccrc.ca
>
> PLEASE SUPPORT MY FUNDRAISING FOR THE RIDE TO SEATTLE AND
> THE WEEKEND TO END WOMENS CANCERS. YOU CAN DONATE AT THE LINKS BELOW
> Ride to Seattle Fundraiser
> Weekend to End Womens Cancers
>
>
>
>
> On Mar 20, 2011, at 8:41 PM, Samuel Aparicio wrote:
>
> I am stuck with the following issue on a client attached to a lustre system.
> we are running lustre 1.8.5
> somehow connectivity to the OST failed at some point and the mount hung.
> after unmounting and re-mounting the client attempts to reconnect.
> lctl ping shows the client to be connected and normal ping to the OSS/MGS
> servers shows connectivity.
> remounting the filesystem results in only some files being visible.
> the kernel messages are as follows:
> ---------
> Lustre: setting import lustre-OST0003_UUID INACTIVE by administrator request
> Lustre: lustre-OST0003-osc-ffff8110238c7400.osc: set parameter active=0
> Lustre: Skipped 3 previous similar messages
> LustreError: 14114:0:(lov_obd.c:315:lov_connect_obd()) not connecting OSC
> ^\; administratively disabled
> Lustre: Client lustre-client has started
> LustreError: 14207:0:(file.c:995:ll_glimpse_size()) obd_enqueue returned rc
> -5, returning -EIO
> LustreError: 14207:0:(file.c:995:ll_glimpse_size()) Skipped 1 previous
> similar message
> LustreError: 14207:0:(file.c:995:ll_glimpse_size()) obd_enqueue returned rc
> -5, returning -EIO
> LustreError: 14686:0:(file.c:995:ll_glimpse_size()) obd_enqueue returned rc
> -5, returning -EIO
> Lustre: 22218:0:(client.c:1476:ptlrpc_expire_one_request()) @@@ Request
> x1363662012007464 sent from lustre-OST0000-osc-ffff8110238c7400 to NID
> 10.9.89.21 at tcp 16s ago has timed out (16s prior to deadline).
>   req at ffff810459ce4c00 x1363662012007464/t0
> o8->lustre-OST0000_UUID at 10.9.89.21@tcp:28/4 lens 368/584 e 0 to 1 dl
> 1300678232 ref 1 fl Rpc:N/0/0 rc 0/0
> Lustre: 22218:0:(client.c:1476:ptlrpc_expire_one_request()) Skipped 182
> previous similar messages
> Lustre: 22219:0:(import.c:517:import_select_connection())
> lustre-OST0000-osc-ffff8110238c7400: tried all connections, increasing
> latency to 18s
> Lustre: 22219:0:(import.c:517:import_select_connection()) Skipped 203
> previous similar messages
> ------------
> an LS of the filesytem shows
> drwxr-xr-x 4 amcpherson users 4096 Mar 19 10:38 amcpherson
> ?--------- ? ?          ?        ?            ? compute-2-0-testwrite
> ?--------- ? ?          ?        ?            ? hello
> ----------
> other clients on the system are able to mount and see the files perfectly
> well.
> can anyone help with what the errors above imply.
> a simple network connectivity issue does not seem to be the case here,
> yet the client attempts to re-connect to the OST, fail.
>
>
>
>
>
>
> Professor Samuel Aparicio BM BCh PhD FRCPath
> Nan and Lorraine Robertson Chair UBC/BC Cancer Agency
> 675 West 10th, Vancouver V5Z 1L3, Canada.
> office: +1 604 675 8200 lab website http://molonc.bccrc.ca
>
> PLEASE SUPPORT MY FUNDRAISING FOR THE RIDE TO SEATTLE AND
> THE WEEKEND TO END WOMENS CANCERS. YOU CAN DONATE AT THE LINKS BELOW
> Ride to Seattle Fundraiser
> Weekend to End Womens Cancers
>
>
>
>
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>
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