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

[Frank Heckes]

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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