[Lustre-discuss] cp -p: mtime not preserved

[Carlos A. A. Thomaz]

Frank,

there's a bug reported (#21489) when running on RHEL/CentOS.
However, we can't reproduce every time. When turning debug on became 
even harder to reproduce.

We still waiting for a solution.

cheers.
Carlos.


Frank Heckes wrote:
> Hi all,
>
> I'm using Lustre 1.8.1.1 on SLES11.1.
>
> When coping a file from one Lustre FS to another with help of 'cp -p'
> the mtime attribute isn't preserved. When using a tar pipe it's working
> (See the commond 'log' below).
>
> Does someone observed the same for SLES11.1 or is it maybe a bug in the
> 'cp-command'?
>
> Many thanks in advance.
>
> -Frank
>
>
> jj28l01:~ # cp
> -p /lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16/RESTART.2 /lustre/jwork1/heckes
> jj28l01:~ #
> stat /lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16/RESTART.2 /lustre/jwork1/heckes/RESTART.2
>   File:
> `/lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16/RESTART.2'
>   Size: 737857342       Blocks: 1441144    IO Block: 2097152 regular
> file
> Device: 1fefa3a0h/535798688d    Inode: 142974444   Links: 1
> Access: (0600/-rw-------)  Uid: ( 7325/  hbo321)   Gid: ( 7268/   hbo32)
> Access: 2009-12-09 07:32:07.000000000 +0100
> Modify: 2009-11-25 06:54:47.000000000 +0100
> Change: 2009-12-02 12:04:49.000000000 +0100
>   File: `/lustre/jwork1/heckes/RESTART.2'
>   Size: 737857342       Blocks: 1433632    IO Block: 2097152 regular
> file
> Device: 90a2b9f8h/2426583544d   Inode: 710274535   Links: 1
> Access: (0600/-rw-------)  Uid: ( 7325/  hbo321)   Gid: ( 7268/   hbo32)
> Access: 2009-12-09 07:31:00.000000000 +0100
> Modify: 2009-12-09 07:32:07.000000000 +0100
> Change: 2009-12-09 07:32:07.000000000 +0100
> jj28l01:~ #
> cd /lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16/
> jj28l01:/lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16 # tar cpvf - RESTART.2 | (cd /lustre/jwork1/heckes ; tar xpf - )
> RESTART.2
> jj28l01:/lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16 # stat /lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16/RESTART.2 /lustre/jwork1/heckes/RESTART.2
>   File:
> `/lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16/RESTART.2'
>   Size: 737857342       Blocks: 1441144    IO Block: 2097152 regular
> file
> Device: 1fefa3a0h/535798688d    Inode: 142974444   Links: 1
> Access: (0600/-rw-------)  Uid: ( 7325/  hbo321)   Gid: ( 7268/   hbo32)
> Access: 2009-12-09 07:34:06.000000000 +0100
> Modify: 2009-11-25 06:54:47.000000000 +0100
> Change: 2009-12-02 12:04:49.000000000 +0100
>   File: `/lustre/jwork1/heckes/RESTART.2'
>   Size: 737857342       Blocks: 1433632    IO Block: 2097152 regular
> file
> Device: 90a2b9f8h/2426583544d   Inode: 710274535   Links: 1
> Access: (0600/-rw-------)  Uid: ( 7325/  hbo321)   Gid: ( 7268/   hbo32)
> Access: 2009-12-09 07:33:52.000000000 +0100
> Modify: 2009-11-25 06:54:47.000000000 +0100
> Change: 2009-12-09 07:34:06.000000000 +0100
> jj28l01:/lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16
>
> ----------------------- TOOL DETAILS -----------------------
>
> # cp --version
> cp (GNU coreutils) 6.12
> Copyright (C) 2008 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
>
> Written by Torbjörn Granlund, David MacKenzie, and Jim Meyering.
> jj28l01:/lustre/jhome7/hbo32/hbo321/work/VW-Project/AB-C2/E-ABC2/2x35k_3/shop_bo_16 # tar --version
> tar (GNU tar) 1.20
> Copyright (C) 2008 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
>
> Written by John Gilmore and Jay Fenlason.
>
>
>
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