Hello,

I have created a snmp agent in perl.

I use this piece of code to launch sub process :

foreach my $disk (@tab_disks) {
    my $pid = fork();
    if ($pid) {
      push(@childs, $pid);
    }
    elsif ($pid == 0) {
      $logger->info("Creating new sub-process");
      check_disk($logger, $disk);
      $logger->info("Exit sub-process");
      exit;
    }
  }

[download]
In check_disk function I have this piece of code : 
my $cmd = 'ssh -qt ' . $disk->{controller_ipaddr} . ' "sudo '. $CMD_ST
+ORCLI . ' /c0/e' . $disk->{physical_id} . '/s' . $disk->{slot_id} . '
+ show 2>&1"';
  $logger->debug("Execute command : " . $cmd);
  open COMD, "$cmd|" or die "Cannot execute $cmd: $!";
  
  while (my $line = <COMD>) {
    $logger->debug("Line : " . $line);
    chomp($line);
    if ($line !~ /$disk->{physical_id}/) {
      next;
    }
    $line =~ s/^\s+|\s+$//g;
    if (exists($DISK_STATUS{$line})) {
      $new_status_txt = $line;
      $new_status = $DISK_STATUS{$line};
      $logger->debug("New status is : " . $new_status);
    }
    else {
      $new_status_txt = $line;
      $new_status = $DISK_STATUS{Other};
      $logger->debug("New status is : " . $new_status);
    }
  }
  close COMD;
  $logger->debug("Command exit status : " . $?);

[download]
I have about 20 entries in tab @tab_disks. On this 20 entries, 2-3 random ssh command launch with open returns exit code 65280. It is not all the same.

Thanks for your help.

Regargds,

Samuel Mutel.

In reply to Strange behaviour with SSH command launched with open by smutel

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