diff --git a/source/libs/function/src/udfd.c b/source/libs/function/src/udfd.c
index 706bf28be0a7c8f514b68df35bc5ef36bdfd7afd..36e07f07d4e6fc9659134b964c0c462bb21da7c8 100644
--- a/source/libs/function/src/udfd.c
+++ b/source/libs/function/src/udfd.c
@@ -96,10 +96,14 @@ int32_t udfdFillUdfInfoFromMNode(void *clientRpc, char *udfName, SUdf *udf);
 
 int32_t udfdLoadUdf(char *udfName, SUdf *udf) {
   strcpy(udf->name, udfName);
+  int32_t err = 0;
+  err = udfdFillUdfInfoFromMNode(global.clientRpc, udf->name, udf);
+  if (err != 0) {
+    fnError("can not retrieve udf from mnode. udf name %s", udfName);
+    return TSDB_CODE_UDF_LOAD_UDF_FAILURE;
+  }
 
-  udfdFillUdfInfoFromMNode(global.clientRpc, udf->name, udf);
-  //strcpy(udf->path, "/home/slzhou/TDengine/debug/build/lib/libudf1.so");
-  int err = uv_dlopen(udf->path, &udf->lib);
+  err = uv_dlopen(udf->path, &udf->lib);
   if (err != 0) {
     fnError("can not load library %s. error: %s", udf->path, uv_strerror(err));
     return TSDB_CODE_UDF_LOAD_UDF_FAILURE;
@@ -142,7 +146,7 @@ int32_t udfdLoadUdf(char *udfName, SUdf *udf) {
 
 void udfdProcessSetupRequest(SUvUdfWork* uvUdf, SUdfRequest* request) {
     // TODO: tracable id from client. connect, setup, call, teardown
-    fnInfo("%" PRId64 " setup request. udf name: %s", request->seqNum, request->setup.udfName);
+    fnInfo( "setup request. seq num: %" PRId64 ", udf name: %s", request->seqNum, request->setup.udfName);
     SUdfSetupRequest *setup = &request->setup;
     int32_t code = TSDB_CODE_SUCCESS;
     SUdf *udf = NULL;
@@ -276,7 +280,7 @@ void udfdProcessCallRequest(SUvUdfWork *uvUdf, SUdfRequest *request) {
 
 void udfdProcessTeardownRequest(SUvUdfWork* uvUdf, SUdfRequest* request) {
   SUdfTeardownRequest *teardown = &request->teardown;
-  fnInfo("teardown. %" PRId64 "handle:%" PRIx64, request->seqNum, teardown->udfHandle);
+  fnInfo("teardown. seq number: %" PRId64 ", handle:%" PRIx64, request->seqNum, teardown->udfHandle);
   SUdfcFuncHandle *handle = (SUdfcFuncHandle *)(teardown->udfHandle);
   SUdf *udf = handle->udf;
   bool  unloadUdf = false;
@@ -800,11 +804,6 @@ static int32_t udfdRun() {
   global.udfsHash = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK);
   uv_mutex_init(&global.udfsMutex);
 
-  if (udfdUvInit() != 0) {
-    fnError("uv init failure");
-    return -2;
-  }
-
   fnInfo("start the udfd");
   int code = uv_run(global.loop, UV_RUN_DEFAULT);
   fnInfo("udfd stopped. result: %s, code: %d", uv_err_name(code), code);
@@ -853,6 +852,11 @@ int main(int argc, char *argv[]) {
     return -4;
   }
 
+  if (udfdUvInit() != 0) {
+    fnError("uv init failure");
+    return -5;
+  }
+
   udfdRun();
 
   udfdCloseClientRpc();
diff --git a/source/libs/function/test/runUdf.c b/source/libs/function/test/runUdf.c
index d7c539e5c2ce857e105ee86554bfea3aa671c256..329da87fcf022c0945df27752e2d8293c226f034 100644
--- a/source/libs/function/test/runUdf.c
+++ b/source/libs/function/test/runUdf.c
@@ -47,7 +47,10 @@ int main(int argc, char *argv[]) {
 
   UdfcFuncHandle handle;
 
-  doSetupUdf("udf1", &handle);
+  if (doSetupUdf("udf1", &handle) != 0) {
+    fnError("setup udf failure");
+    return -1;
+  }
 
   SSDataBlock  block = {0};
   SSDataBlock *pBlock = █