diff --git a/xCAT-server/lib/xcat/plugins/updatenode.pm b/xCAT-server/lib/xcat/plugins/updatenode.pm
index 3dc588452..447114cde 100644
--- a/xCAT-server/lib/xcat/plugins/updatenode.pm
+++ b/xCAT-server/lib/xcat/plugins/updatenode.pm
@@ -588,34 +588,6 @@ sub preprocess_updatenode
     foreach my $snkey (keys %$sn)
     {
 
-        my @tmp_a = split(',', $snkey);
-        foreach my $s1 (@tmp_a)
-        {
-
-            # TODO  fix the error handling, right now cause inf loop
-            # should use the new --nodestatus capability
-            #  when  getdata and updatenode_cb are registered  LKV
-            # if (   $::SECURITY
-            #     && !(grep /^$s1$/, @::good_sns) # is it good
-            #     && !(grep /^$s1$/, @MNip))  # is the MN
-            # {
-            #     my $rsp;
-            #     push @{$rsp->{data}},
-            #       "The security update for service node $snkey encountered error, update security for following nodes will be skipped: @{$sn->{$snkey}}";
-            #     xCAT::MsgUtils->message("E", $rsp, $callback);
-            #     next;
-            # }
-
-            # remove the service node which have been handled before
-            #if ($::SECURITY && (grep /^$s1$/, @MNip))
-            #{
-            #    delete @{$sn->{$snkey}}[@sns];
-            #    if (scalar(@{$sn->{$snkey}}) == 0)
-            #    {
-            #        next;
-            #    }
-            #}
-        }
 
         # build request