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Thank you Very much for your reply and time. apologies for not posting it using the correct tags. i have moved the subrotine to the top of the program and declared all variables with my. but still have the same issue.

i am sorry if i am wrong about crash. the reason, i said perl crashed was because i got a message window

"Perl command line interpreter has stopped working" close the program or check online for solution and close the program. i copied the porgram details from the window. please see below.
Problem signature: Problem Event Name: APPCRASH Application Name: perl.exe Application Version: 5.10.0.1005 Application Timestamp: 4a199d7b Fault Module Name: perl510.dll Fault Module Version: 5.10.0.1005 Fault Module Timestamp: 4a199d7a Exception Code: c0000005 Exception Offset: 0009b108 OS Version: 6.1.7601.2.1.0.256.4 Locale ID: 1033 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789 Read our privacy statement online: http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409 If the online privacy statement is not available, please read our priv +acy statement offline: C:\WINDOWS\system32\en-US\erofflps.txt

following is the output

perl TimeZoneCheck.pl Starting main program 0 server1 1 server2 Host server1 is alive Host server2 is alive server2 India Standard Time (GMT+05:30) Chennai, Kolkata, Mumbai +, New Delhi (GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi Free to wrong pool 49cc3c8 not f3ea8, <FILE> line 5 during global dest +ruction.

modified Code

use strict; use warnings; use threads; use threads::shared; use Net::Ping; use Switch; use Net::DNS; #use Try::Tiny; #use DBI; use Win32::OLE qw(in with); use Carp; use constant wbemFlagReturnImmediately => 0x10; use constant wbemFlagForwardOnly => 0x20; $Win32::OLE::Warn = 3; sub GetTimeZone { my $paramsub = shift; my @subparam = split(/:/, $paramsub); my $subrow = $subparam[0]; my $subhost = $subparam[1]; $subhost =~ s/^\s+//m; $subhost =~ s/\s+$//m; # Create a new ping object my $pingit = Net::Ping->new("icmp"); my $timeout = 10; print "\n$subrow \t $subhost \n"; my $user="domain\\username"; my $pwd="password"; my $locatorObj =Win32::OLE->new("WbemScripting.SWbemLocator") or d +ie "ERROR CREATING OBJ"; $locatorObj->{Security_}->{impersonationlevel} = 3; #return ($subrow, $subhost); # perform the ping if( $pingit->ping($subhost, $timeout) ) { print "Host ".$subhost." is alive\n"; eval { my $objWMIService = $locatorObj->ConnectServer($subhost, + "root\\cimv2", $user, $pwd); if (Win32::OLE->LastError()) { #$sheet->Cells($row,5)->{'Value'} = "$_\n"; print "$_\n"; Win32::OLE->LastError(0); # this clears your error } else { my $colItems = $objWMIService->ExecQuery ("Select * from Win32_Timezone","WQL",wbemFlagRetu +rnImmediately | wbemFlagForwardOnly); if (Win32::GetLastError()) { #$sheet->Cells($row,5)->{'Value'} = "$_\n"; print "$subhost : $_\n"; Win32::OLE->LastError(0); # this clears your error } else{ foreach my $objItem (in $colItems) { print "\n$subhost \t $objItem->{StandardNa +me} \t $objItem->{Caption} \t $objItem->{Description} \n"; #$timezonename = $objItem->{StandardName}; #$timezonecaption =$objItem->{Caption}; #$timezonedescription = $objItem->{Descrip +tion}; ##objOS.CurrentTimeZone/60 & ":" & right(" +00" & objOS.CurrentTimeZone mod 60, 2) } } } }; if ($@) { print "Warning: Error querying object $subhost: $@\n"; #$sheet->Cells($row,5)->{'Value'} = "$@"; #$row++; next; } } else { print "Warning: ".$subhost." appears to be down or icmp packets +are blocked by their server\n"; #$sheet->Cells($row,5)->{'Value'} = "Warning: ".$netbiosname[0 +]." Down"; } $pingit->close(); } print "Starting main program\n"; open FILE, "c:\\serverping.txt" or die "could not open the file"; my @lines = <FILE>; my $linecount = scalar @lines; my $row = 0; my $line =$lines[$row]; $line =~ s/^\s+//m; $line =~ s/\s+$//m; my $mainparam = $row.':'.$lines[$row]; my $thr0 = threads->new(\&GetTimeZone, $mainparam); $row++; $mainparam = $row.':'.$lines[$row]; my $thr1 = threads->new(\&GetTimeZone, $mainparam); $row++; while(1){ if ($thr0->is_joinable()) { $thr0->join; if ($row<$linecount){ $mainparam = $row.':'.$lines[$row]; $thr0 = threads->new(\&GetTimeZone, $mainparam); $row++; } } if ($thr1->is_joinable()) { $thr1->join; if ($row<$linecount){ $mainparam = $row.':'.$lines[$row]; $thr1 = threads->new(\&GetTimeZone, $mainparam); $row++; } } my $thread_count = threads->list(); #print "$thread_count \n"; last if ($row==$linecount && $thread_count == 0); } print "End of main program\n"; close FILE;

In reply to Re^2: WMI query with Threads by vamsinm
in thread WMI query with Threads by vamsinm

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