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20030328: A problem with ldm starting: split-loop bug

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  • Subject: 20030328: A problem with ldm starting: split-loop bug
  • Date: Fri, 28 Mar 2003 13:36:22 -0700
David,

> To: <address@hidden>
> From: "David Wojtowicz" <address@hidden>
> Subject: Re: 20021206: A problem with ldm starting 
> Organization: UCAR/Unidata

The above message contained the following:

> Re the problem with "split loop" errors.  I just ran into this on a new
> install of LDM 6.0.2.  on an RH8.0 machine (previous installs are on 7.2
> machines)
> 
> 
> >   ( @QUEUES ) = split( "[ \t\n]+", `ls $pq_path` );
> >   if($#QUEUES==-1) {
> 
> I didn't see a resolution in the archives.  In the two places it is used in
> ldmadmin it seems that the only purpose is to check for the existance of the
> pq file.   Wouldn't it be more efficient (than spawning a ls process) and
> avoid the mysterious split loop error to just use a file test:
> 
> if(! -f $pq_path) {
>   # so something
> }
> 
> Just a suggestion.  That's how I patched mine and it works fine.

I'm not a perl expert and I didn't write the ldmadmin script (although I
now maintain it) so thank you very much for sending this in.

It'll be in the next release.

> David Wojtowicz, Sr. Research Programmer
> Department of Atmospheric Sciences Computer Services
> address@hidden   (217) 333-8390

Regards,
Steve Emmerson