[PVFS-users] pvfs file times

[Rob Ross]

Hi Eric,

To follow up on this, there were actually at least two different issues
with mtime that were reported.  The first had to do with mtimes not being 
stored correctly in the case where a client failed.  The second had to do 
with mtimes not being reported correctly while a file was open (wouldn't 
always get the newest value).

Patches for both have been applied to CVS and will appear in a snapshot
release very very soon.  Note that mtime is more liable to be out of wack
in the case where the clocks on servers are skewed than it was before.

Regards,

Rob

On Sun, 4 Apr 2004, Rob Ross wrote:

> Hi Eric,
> 
> The times on the metadata files don't have anything to do with the actual 
> date/time stamp of the PVFS file.  That information is instead contained 
> *inside* that file.
> 
> There have been a bug reported in that code (see Don Porter's Mon March 
> 8th post in archives).  Perhaps that is your problem?
> 
> Thanks for the report,
> 
> Rob
> 
> On 25 Mar 2004, Eric Engquist wrote:
> 
> > I am seeing something strange.  On the pvfs meta server I see the
> > following files with a correct
> > date/time stamp.
> > [root at l1 tfns]# cd /pvfs-meta/arblack/methane/medium/tfns
> > [root at l1 tfns]# ls -l
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.20
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.21
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.22
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.23
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.24
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.25
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.26
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.27
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.28
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.29
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.30
> > -rwxr--r--    1 root     root          104 Mar 22 17:18
> > verdeflame_med6.par.32.31
> > 
> > However if I go to the client and list them, the time/date stamp is
> > different.
> > l2# cd /scratch1/arblack/methane/medium/tfns
> > l2# ls -l
> > -rw-r--r--    1 arblack  arblack   1086908 Mar  9 11:39
> > verdeflame_med6.par.32.20
> > -rw-r--r--    1 arblack  arblack   1087920 Mar  9 11:39
> > verdeflame_med6.par.32.21
> > -rw-r--r--    1 arblack  arblack   1089048 Mar  9 11:39
> > verdeflame_med6.par.32.22
> > -rw-r--r--    1 arblack  arblack   1089768 Mar  9 11:39
> > verdeflame_med6.par.32.23
> > -rw-r--r--    1 arblack  arblack   1089212 Mar  9 11:39
> > verdeflame_med6.par.32.24
> > -rw-r--r--    1 arblack  arblack   1090116 Mar  9 11:39
> > verdeflame_med6.par.32.25
> > -rw-r--r--    1 arblack  arblack   1086704 Mar  9 11:39
> > verdeflame_med6.par.32.26
> > -rw-r--r--    1 arblack  arblack   1087948 Mar  9 11:39
> > verdeflame_med6.par.32.27
> > -rw-r--r--    1 arblack  arblack   1050024 Mar  9 11:39
> > verdeflame_med6.par.32.28
> > -rw-r--r--    1 arblack  arblack   1080856 Mar  9 11:39
> > verdeflame_med6.par.32.29
> > -rw-r--r--    1 arblack  arblack   1078952 Mar  9 11:39
> > verdeflame_med6.par.32.30
> > -rw-r--r--    1 arblack  arblack   1076168 Mar  9 11:39
> > verdeflame_med6.par.32.31
> > 
> > -Eric
> > 
> > -- 
> > =================================================================
> > Eric Engquist                         Sandia National Laboratory 
> > Organization 9324                     P.O. Box 5800              
> > Phone:  (505) 844-0974                Albuquerque, NM  87185
> > Beeper: (505) 540-6383                Mail Stop 0807             
> > Bldg 880 / Rm D4-S                    e-mail: eaengqu at sandia.gov 
> > =================================================================
> > 
> 
> 
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