[BUG] GRAM job manager error because of the non-standard installation path "\"

[iWangJiaxiang]

Description

Hello dear developers,

This is a bug that occurs when use the non-standard installation path (not \).

I tried to compile and install GCT on a custom path (not standard path \) but I got errors when running globus-job-run. The error looks like below:

GRAM Job failed because the job manager detected an invalid script status (error code 25)

Reproduction

Just compile and install GCT to a custom path and run globus-job-run after proper configuration.

Research

After referring the official doc I found more details:

Error Code	Reason	Possible Solutions
25	the job manager detected an invalid script status	Check job manager logs. This is likely a bug in the LRM script.

I followed the doc to diagnose LRM error. When I run the command globus-job-manager-script.pl -h, I got nothing on Installed managers.

According to the globus-job-manager-script.pl perl script, -h option should have listed all install LRM managers but I got nothing. The relative code is as below:

if ($help)
{
    my $managers;
    print "USAGE: $0 -m MANAGER -f FILE -c COMMAND\n";
    print "Installed managers:";
    foreach (<$perlmoduledir/Globus/GRAM/JobManager/*.pm>)
    {
        my $manager = $_;
        chomp($manager);
        $manager =~ s|.*/||;
        $manager =~ s|\.pm$||;
        print " $manager";
    }
    print "\n";
    exit(0);
}

After more review of the script, I found the reason was the $perlmoduledir variable which should have correct path but not (the value was just /perl). That's because the initialization of $perlmoduledir needs to contain the value of $libdir` as the code below.

$perlmoduledir = "${libdir}/perl";

However, the $libdir is defined but a value is never assigned to it. So the $perlmoduledir would never get correct path to locate LRM scripts.

Reason

$perlmoduledir not properly assigned because of un-assigned variable $libdir.

I checked line 49 in the source file and the code is $perlmoduledir = "@perlmoduledir@";. This mighit be fixed in the initialization of GCT installation.

Solution

For now my workaround is manually assigning the lib directory to $libdir before the assignment of $perlmoduledir in the file globus-job-manager-script.pl. Just like below:

...
$libdir = "/path/to/globus/lib";
$perlmoduledir = "${libdir}/perl";
...

Hope this could help~

[fscheiner]

Fixed in GCT v6.2.20190906.