diff --git a/include/os/osEnv.h b/include/os/osEnv.h
index 14d50858b7..a3f92a0b29 100644
--- a/include/os/osEnv.h
+++ b/include/os/osEnv.h
@@ -34,6 +34,7 @@ extern int64_t         tsOpenMax;
 extern int64_t         tsStreamMax;
 extern float           tsNumOfCores;
 extern int64_t         tsTotalMemoryKB;
+extern char*           tsProcPath;
 
 extern char configDir[];
 extern char tsDataDir[];
diff --git a/source/dnode/mgmt/implement/src/dmHandle.c b/source/dnode/mgmt/implement/src/dmHandle.c
index 94c6d20834..c59ff1521a 100644
--- a/source/dnode/mgmt/implement/src/dmHandle.c
+++ b/source/dnode/mgmt/implement/src/dmHandle.c
@@ -234,7 +234,10 @@ static int32_t dmSpawnUdfd(SDnode *pDnode) {
   dInfo("dnode start spawning udfd");
   uv_process_options_t options = {0};
 
-  char path[] = "udfd";
+  char path[PATH_MAX] = {0};
+  strncpy(path, tsProcPath, strlen(tsProcPath));
+  char* dirName = taosDirName(path);
+  strcat(path, "/udfd");
   char* argsUdfd[] = {path, "-c", configDir, NULL};
   options.args = argsUdfd;
   options.file = path;
@@ -261,7 +264,6 @@ static int32_t dmSpawnUdfd(SDnode *pDnode) {
   options.env = envUdfd;
 
   int err = uv_spawn(&pData->loop, &pData->process, &options);
-
   pData->process.data = (void*)pDnode;
 
   if (err != 0) {
diff --git a/source/os/src/osEnv.c b/source/os/src/osEnv.c
index 22884298ef..e24ac41f20 100644
--- a/source/os/src/osEnv.c
+++ b/source/os/src/osEnv.c
@@ -37,6 +37,7 @@ int64_t         tsOpenMax = 0;
 int64_t         tsStreamMax = 0;
 float           tsNumOfCores = 0;
 int64_t         tsTotalMemoryKB = 0;
+char*           tsProcPath = NULL;
 
 void osDefaultInit() {
   taosSeedRand(taosSafeRand());
diff --git a/source/os/src/osProc.c b/source/os/src/osProc.c
index b6de638ac2..d569582256 100644
--- a/source/os/src/osProc.c
+++ b/source/os/src/osProc.c
@@ -17,7 +17,7 @@
 #define _DEFAULT_SOURCE
 #include "os.h"
 
-static char *tsProcPath = NULL;
+char *tsProcPath = NULL;
 
 int32_t taosNewProc(char **args) {
   int32_t pid = fork();
diff --git a/tests/script/test.sh b/tests/script/test.sh
index 14dc43beaf..e4191da0a9 100755
--- a/tests/script/test.sh
+++ b/tests/script/test.sh
@@ -131,8 +131,8 @@ if [ -n "$FILE_NAME" ]; then
       FLAG="-v"    
     fi 
   
-    echo valgrind --tool=memcheck --leak-check=full --show-reachable=no  --track-origins=yes --show-leak-kinds=all  -v  --workaround-gcc296-bugs=yes  --log-file=${LOG_DIR}/valgrind-tsim.log $PROGRAM -c $CFG_DIR -f $FILE_NAME $FLAG
-    valgrind --tool=memcheck --leak-check=full --show-reachable=no  --track-origins=yes --show-leak-kinds=all  -v  --workaround-gcc296-bugs=yes  --log-file=${LOG_DIR}/valgrind-tsim.log $PROGRAM -c $CFG_DIR -f $FILE_NAME $FLAG
+    echo valgrind --tool=memcheck --leak-check=full --show-reachable=no  --track-origins=yes --child-silent-after-fork=yes --show-leak-kinds=all  -v  --workaround-gcc296-bugs=yes  --log-file=${LOG_DIR}/valgrind-tsim.log $PROGRAM -c $CFG_DIR -f $FILE_NAME $FLAG
+    valgrind --tool=memcheck --leak-check=full --show-reachable=no  --track-origins=yes --child-silent-after-fork=yes --show-leak-kinds=all  -v  --workaround-gcc296-bugs=yes  --log-file=${LOG_DIR}/valgrind-tsim.log $PROGRAM -c $CFG_DIR -f $FILE_NAME $FLAG
   else
     if [[ $MULTIPROCESS -eq 1 ]];then
       echo "ExcuteCmd(multiprocess):" $PROGRAM -m -c $CFG_DIR -f $FILE_NAME