....
....
.......
for my $_entry (@_hosts) {
                eval {
                        $_ssh{$_entry} = Net::OpenSSH->new($_entry, user=>$config{_ssh_user}, password=>$config{_ssh_passwd},
                                 async => 1, master_opts => [-o => "StrictHostKeyChecking=no"]);
                        if($_ssh{$_entry}->error) {
                                die CLI::Exception::SSHConnectException->new() ;
                        } else { $logger->debug("Successfully established SSH connection with ", $_entry); }
                };
 
                if(catch my $_e) {
                        if ($_e->isa('CLI::Exception')) {
                                $logger->error($_e->description, " with ", $_entry);
                                print $_e->description." with $_entry \n";
                        }
                 }
        }
 
        if($_command eq "getfile") {
                for my $_entry (@_hosts) {
                        $_pid{$_entry} = $_ssh{$_entry}->rsync_get({async => 1, stderr_fh=>$fh, progress=> 1, recursive => 1}, "/home/shagun/check.c", "/home/shivangi/")
                                or
                        ($logger->error("rsync_get to $_entry failed") and print "rsync_get to $_entry failed\n");
                }
        } elsif($_command eq "putfile") {
                for my $_entry (@_hosts) {
                        $_pid{$_entry} = $_ssh{$_entry}->rsync_put({async => 1, stderr_fh=>$fh, recursive => 1, progress => 1 }, "/home/shivangi/shwetabh.img", "/home/shagun/")
....
...
...
..

When i execute the code with debug mode enabled, output is:

garfield:/home/shivangi/CLI_14/lib1 # ./Application.pl 
garfield>putfile region-group groupB
# open_ex: ['ssh','-O','check','-T','-S','/root/.libnet-openssh-perl/root-10.112.35.43-3848-813787','-l','root','10.112.35.43','--']
# _waitpid(3981) => pid: 3981, rc: 
# open_ex: ['rsync','-e','ssh -S /root/.libnet-openssh-perl/root-10.112.35.43-3848-813787','--blocking-io','-q','--recursive','--progress','--','/home/shivangi/shwetabh.img','root@10.112.35.43:/home/shagun/']
# open_ex: ['ssh','-O','check','-T','-S','/root/.libnet-openssh-perl/root-10.112.32.56-3848-476728','-l','root','10.112.32.56','--']
# _waitpid(3984) => pid: 3984, rc: 
# open_ex: ['rsync','-e','ssh -S /root/.libnet-openssh-perl/root-10.112.32.56-3848-476728','--blocking-io','-q','--recursive','--progress','--','/home/shivangi/shwetabh.img','root@10.112.32.56:/home/shagun/']
# open_ex: ['ssh','-O','exit','-T','-S','/root/.libnet-openssh-perl/root-10.112.35.43-3848-813787','-l','root','10.112.35.43','--']
# _waitpid(4236) => pid: 4236, rc: 
# open_ex: ['ssh','-O','exit','-T','-S','/root/.libnet-openssh-perl/root-10.112.32.56-3848-476728','-l','root','10.112.32.56','--']
# _waitpid(4237) => pid: 4237, rc: