20030422: upgrade of ldm.meteo.psu.edu to 6.0.10

Art,

>Date: Tue, 22 Apr 2003 15:30:40 -0400 (EDT)
>From: "Arthur A. Person" <address@hidden>
>Organization: Penn State
>To: Steve Emmerson <address@hidden>
>Subject: Re: 20030422: upgrade of ldm.meteo.psu.edu to 6.0.10 

The above message contained the following:

> I get:
> 
> [ldm@ldm data]$ ls -l
> total 7385916
> -rw-rw-r--    1 ldm      ldmsys          0 Apr 22 11:42 junk.dat
> -rw-rw-r--    1 ldm      ldmsys   4273569792 Mar 24 09:05 ldm.pq
> -rw-rw-r--    1 ldm      ldmsys   3282219008 Sep 25  2002 ldm.pq.old
> 
> [ldm@ldm data]$ perl -v
> 
> This is perl, v5.6.1 built for i386-linux
> 
> if (! -f "ldm.pq") {
>     print "no\n";
> } else {
>     print "yes\n";
> }
> no

We think that the problem is that your perl utility wasn't compiled with
the same large-file-support flags that were used in building the LDM
(-D_FILE_OFFSET_BITS=64, -D_LARGEFILE_SOURCE) and that, consequently, the
perl utility is misinterpreting a file-status structure.

One solution would, perhaps, be to rebuilt your perl utility with
large-file support.

An alternative would be to replace occurences of "-f $pq_path" in the
ldmadmin script, with something like the following:

    system("ls $pq_path > /dev/null");
    if ($?) {
        # file doesn't exist
    } else {
        # file exists
    }

I'm going to put this in the next release.

> Arthur A. Person
> Research Assistant, System Administrator
> Penn State Department of Meteorology
> email:  address@hidden, phone:  814-863-1563

Regards,
Steve Emmerson