-Remove confilicting hosts file entries

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@3516 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

perl-xCAT/xCAT/Table.pm

@@ -8,6 +8,7 @@
 package xCAT::Table;
 use Sys::Syslog;
 use Data::Dumper;
+use IO::Socket::UNIX;
 BEGIN
 {
     $::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : -d '/opt/xcat' ? '/opt/xcat' : '/usr';
@@ -25,6 +26,9 @@ require xCAT::NodeRange;
 use Text::Balanced qw(extract_bracketed);
 require xCAT::NotifHandler;
 
+my $dbworkerpid; #The process id of the database worker
+my $dbworkersocket;
+my $dbsockpath;
 #--------------------------------------------------------------------------------
 
 =head1 xCAT::Table

xCAT-server/lib/xcat/plugins/hosts.pm

@@ -33,7 +33,6 @@ sub addnode {
   
   while ($idx <= $#hosts) {
     if ($hosts[$idx] =~ /^${ip}\s/ or $hosts[$idx] =~ /^\d+\.\d+\.\d+\.\d+\s+${node}[\s\.r/) {
-      #TODO: if foundone, delete a dupe
       if ($foundone) {
         $hosts[$idx]=""; 
       } else {