diff --git a/xCAT-server/lib/xcat/plugins/boottarget.pm b/xCAT-server/lib/xcat/plugins/boottarget.pm
index 338b466ce..91bb719b2 100644
--- a/xCAT-server/lib/xcat/plugins/boottarget.pm
+++ b/xCAT-server/lib/xcat/plugins/boottarget.pm
@@ -35,6 +35,9 @@ sub preprocess_request
 {
     my $req      = shift;
     my $callback = shift;
+    #if already preprocessed, go straight to request
+    if ($req->{_xcatpreprocessed}->[0] == 1) { return [$req]; }
+
     if ($req->{command}->[0] eq 'copycd')
     {    #don't farm out copycd
         return [$req];
@@ -84,6 +87,7 @@ sub preprocess_request
     {    #iterate dispatch targets
         my $reqcopy = {%$req};    #deep copy
         $reqcopy->{'_xcatdest'} = $dtarg;
+	$reqcopy->{_xcatpreprocessed}->[0] = 1;
         $reqcopy->{node} = [keys %{$dispatchhash{$dtarg}}];
         push @requests, $reqcopy;
     }
diff --git a/xCAT-server/lib/xcat/plugins/conserver.pm b/xCAT-server/lib/xcat/plugins/conserver.pm
index 091b0a682..901c0d392 100644
--- a/xCAT-server/lib/xcat/plugins/conserver.pm
+++ b/xCAT-server/lib/xcat/plugins/conserver.pm
@@ -35,7 +35,8 @@ sub handled_commands {
 
 sub preprocess_request {
   my $request = shift;
-  if ($request->{_xcatdest}) { return [$request]; }    #exit if preprocessed
+  #if ($request->{_xcatdest}) { return [$request]; }    #exit if preprocessed
+  if ($request->{_xcatpreprocessed}->[0] == 1) { return [$request]; }
   my $callback=shift;
   my @requests;
   my $noderange = $request->{node}; #Should be arrayref 
@@ -114,6 +115,7 @@ sub preprocess_request {
   if (!$isSN) { #
     my $reqcopy = {%$request};
     $reqcopy->{'_xcatdest'} = $master;
+    $reqcopy->{_xcatpreprocessed}->[0] = 1;
     $reqcopy->{'_allnodes'} = $allnodes; # the original command comes with nodes or not
     if ($allnodes==1) { @nodes=(); }
     $reqcopy->{node} = \@nodes;
@@ -134,6 +136,7 @@ sub preprocess_request {
     if ($doit) {
       my $reqcopy = {%$request};
       $reqcopy->{'_xcatdest'} = $cons;
+      $reqcopy->{_xcatpreprocessed}->[0] = 1;
       $reqcopy->{'_allnodes'} = [$allnodes]; # the original command comes with nodes or not
       $reqcopy->{node} = $cons_hash{$cons}{nodes};
       my $no=$reqcopy->{node};
diff --git a/xCAT-server/lib/xcat/plugins/monctrlcmds.pm b/xCAT-server/lib/xcat/plugins/monctrlcmds.pm
index 161ac362e..ad169ea28 100644
--- a/xCAT-server/lib/xcat/plugins/monctrlcmds.pm
+++ b/xCAT-server/lib/xcat/plugins/monctrlcmds.pm
@@ -63,6 +63,8 @@ sub preprocess_request
   my $callback  = shift;
   my $command = $req->{command}->[0];
 #  if ($req->{_xcatdest}) { return [$req]; }    #exit if preprocessed
+  if ($req->{_xcatpreprocessed}->[0] == 1) { return [$req]; }
+
   if ($req->{module}) { return [$req]; }
   my $args=$req->{arg};
 
@@ -142,6 +144,7 @@ sub preprocess_request
 	if (! $iphash{$sv}) {
 	  if ($isSV) { next; } #if the command is issued on the monserver, only handle its children.
 	  $reqcopy->{'_xcatdest'}=$sv;
+	  $reqcopy->{_xcatpreprocessed}->[0] = 1;
 	  my $rsp2={};
 	  $rsp2->{data}->[0]="sending request to $sv..., ".join(',', @$mon_nodes);
 	  $callback->($rsp2);
diff --git a/xCAT-server/lib/xcat/plugins/updatenode.pm b/xCAT-server/lib/xcat/plugins/updatenode.pm
index 3df65a075..53f565d07 100644
--- a/xCAT-server/lib/xcat/plugins/updatenode.pm
+++ b/xCAT-server/lib/xcat/plugins/updatenode.pm
@@ -58,7 +58,10 @@ sub preprocess_request
     my $callback = shift;
     my $subreq = shift;
     my $command  = $request->{command}->[0];
-    if ($request->{_xcatdest}) { return [$request]; }    #exit if preprocessed
+    #if ($request->{_xcatdest}) { return [$request]; }    #exit if preprocessed
+    #if already preprocessed, go straight to request
+    if ($request->{_xcatpreprocessed}->[0] == 1) { return [$request]; }
+
     my @requests=();
 
     if ($command eq "updatenode")
@@ -237,6 +240,8 @@ sub preprocess_updatenode {
     my $reqcopy = {%$request};
     $reqcopy->{node} = $sn->{$snkey};
     $reqcopy->{'_xcatdest'} = $snkey;
+    $reqcopy->{_xcatpreprocessed}->[0] = 1;
+
     if (defined ($::SWMAINTENANCE)) {
       $reqcopy->{swmaintenance} = "yes";
     }