exit - perl script is not terminating after finishing -

i calling perl script using xinetd port. observed file not terminated automatically after finishing. pasting code of file below.

#! /usr/bin/perl -w use warnings; use time::piece; use dbi; use diagnostics;  $env{tz} = 'asia/kolkata';  $today = localtime->strftime();        # local time zone $todaysecs = localtime->epoch();       # local time in secs(total secs)  $line = <stdin>;                        #input xinetd $line =~ s/^\s+//; $line =~ s/\s+$//;  if($line ne "") {     $connet_db = dbi->connect('dbi:mysql:db_name','db_user','db_password');     $connet_db->do("insert `table_name` (`column1` , `column2`, `data_time`) values ('$line', '$today', $todaysecs)");     $connet_db->disconnect(); } 

i pasting output of cmd shows processes not terminated.

14848 /usr/bin/perl -w /home/abhi       48:34 15225 /usr/bin/perl -w /home/abhi       46:02 15836 /usr/bin/perl -w /home/abhi       43:31 16160 /usr/bin/perl -w /home/abhi       40:56 16777 /usr/bin/perl -w /home/abhi       38:24 16948 /usr/bin/perl -w /home/abhi       37:02 17107 /usr/bin/perl -w /home/abhi       36:37 17269 /usr/bin/perl -w /home/abhi       35:51 17702 /usr/bin/perl -w /home/abhi       33:16 17876 /usr/bin/perl -w /home/abhi       32:00 18270 /usr/bin/perl -w /home/abhi       30:40 18678 /usr/bin/perl -w /home/abhi       28:09 

please me figure out problem.