diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/AbstractNCUdfServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/AbstractNCUdfServlet.java
index 5a3cde6..9c8cc5e 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/AbstractNCUdfServlet.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/server/AbstractNCUdfServlet.java
@@ -18,7 +18,6 @@
  */
 package org.apache.asterix.api.http.server;
 
-import static org.apache.asterix.api.http.server.ServletConstants.HYRACKS_CONNECTION_ATTR;
 import static org.apache.asterix.common.functions.ExternalFunctionLanguage.JAVA;
 import static org.apache.asterix.common.functions.ExternalFunctionLanguage.PYTHON;
 
@@ -41,8 +40,8 @@
 import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
 import org.apache.hyracks.algebricks.common.utils.Pair;
 import org.apache.hyracks.api.application.INCServiceContext;
-import org.apache.hyracks.api.client.IHyracksClientConnection;
 import org.apache.hyracks.api.exceptions.IFormattedException;
+import org.apache.hyracks.control.common.controllers.NCConfig;
 import org.apache.hyracks.control.common.work.SynchronizableWork;
 import org.apache.hyracks.control.nc.NodeControllerService;
 import org.apache.hyracks.http.api.IServletResponse;
@@ -134,19 +133,11 @@
     }
 
     URI createDownloadURI(Path file) throws Exception {
+        String host = appCtx.getServiceContext().getAppConfig().getString(NCConfig.Option.PUBLIC_ADDRESS);
         String path = paths[0].substring(0, servletPathLengths[0]) + GET_UDF_DIST_ENDPOINT + '/' + file.getFileName();
-        String host = getHyracksClientConnection().getHost();
         return new URI(httpServerProtocol.toString(), null, host, httpServerPort, path, null, null);
     }
 
-    IHyracksClientConnection getHyracksClientConnection() throws Exception { // NOSONAR
-        IHyracksClientConnection hcc = (IHyracksClientConnection) ctx.get(HYRACKS_CONNECTION_ATTR);
-        if (hcc == null) {
-            throw new RuntimeDataException(ErrorCode.PROPERTY_NOT_SET, HYRACKS_CONNECTION_ATTR);
-        }
-        return hcc;
-    }
-
     private boolean isNotAttribute(InterfaceHttpData field) {
         return field == null || !field.getHttpDataType().equals(InterfaceHttpData.HttpDataType.Attribute);
     }
diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/message/AbstractInternalRequestMessage.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/message/AbstractInternalRequestMessage.java
index ce95f5b..7d58e4e 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/message/AbstractInternalRequestMessage.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/message/AbstractInternalRequestMessage.java
@@ -80,8 +80,7 @@
         final RuntimeDataException rejectionReason =
                 ExecuteStatementRequestMessage.getRejectionReason(ccSrv, nodeRequestId);
         if (rejectionReason != null) {
-            ExecuteStatementRequestMessage.sendRejection(rejectionReason, messageBroker, requestMessageId,
-                    nodeRequestId);
+            sendRejection(rejectionReason, messageBroker, requestMessageId, nodeRequestId);
             return;
         }
         CCExtensionManager ccExtMgr = (CCExtensionManager) ccAppCtx.getExtensionManager();
@@ -120,4 +119,14 @@
 
     protected abstract Statement produceStatement();
 
+    private void sendRejection(Exception reason, CCMessageBroker messageBroker, long requestMessageId,
+            String requestNodeId) {
+        InternalRequestResponse msg = new InternalRequestResponse(requestMessageId);
+        msg.setError(reason);
+        try {
+            messageBroker.sendApplicationMessageToNC(msg, requestNodeId);
+        } catch (Exception e) {
+            LOGGER.log(Level.WARN, e.toString(), e);
+        }
+    }
 }