Hi.

I realize this is a very old chain but I figured I would take a chance and post a follow-on question. Identical, I think to the problem mentioned above.

I have a parent process that looks for delivery jobs to be handled and dispatches child processes to do those deliveries. The SFTP child process uses Net::SFTP::Foreign and uses STDERR redirect suggested above. The relevant piece of code looks like:

    my $host = $delivery->{HOST};
    my $ssherr = File::Temp->new or die "File::Temp->new failed";

    my %sftp_params = (
        'user'      =>  $delivery->{LOGIN},
        'password'  =>  $delivery->{PASSWORD},
        'more'      =>  ['-v'], 
        'stderr_fh' =>  $ssherr,        
    );
    if($delivery->{PORT}) {
        $sftp_params{'port'} = $delivery->{PORT};
    }

    &logPrint("connecting to host '$host' via SFTP");
    
    $sftp = Net::SFTP::Foreign->new($host, %sftp_params);
    if ($sftp->error) {
        &logFatal("unable to connect to host '$host': " . $sftp->error
+);
        seek($ssherr, 0, 0);
        while (<$ssherr>) {
            &logFatal("captured stderr: $_\n");
        }       
        return undef;
    }

[download]

My problem is that if there is a problem (remote host is incorrect, remote host has blocked access) the child process still doesn't seem to be aware of that. Output looks like:

2017/03/15 15:36:59 UnsiloManager        doing deliver 
2017/03/15 15:36:59 Deliver::SFTP        getting delivery specs...
2017/03/15 15:36:59 Deliver::SFTP        Connecting to: 'ftp.unsilo.co
+m' via SFTP

[download]

Meanwhile the parent/dispatcher process is never aware of the fact that the child/SFTP process had a problem and sits around and waits:

2017/03/15 15:36:59 main                trying to spawn child for job 
+nature_v9_n222_xml_unsilo_20170315150444.deliver
2017/03/15 15:36:59 main                spawning new child process '18
+385' 
2017/03/15 15:36:59 main                1 jobs currently running 
2017/03/15 15:37:59 main        DEBUG   child process '18385' still ru
+nning 
2017/03/15 15:37:59 main                1 jobs currently running 
2017/03/15 15:38:59 main        DEBUG   child process '18385' still ru
+nning 
2017/03/15 15:38:59 main                1 jobs currently running

[download]

So clearly there's still something wrong with the way I've coded the SFTP child process. Is there anything that someone might be able to suggest?

In reply to Re^2: Net::SFTP::Foreign Connection STDERR by Anonymous Monk

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