diff --git a/.gitmodules b/.gitmodules
index 9efd31c9480f785cd30a7106905e5bf75bea15b1..bdaa5508b214e81f67a79b56fce5e0e2e865308e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,6 +10,7 @@
 [submodule "deps/TSZ"]
 	path = deps/TSZ
 	url = https://github.com/taosdata/TSZ.git
+	branch = master
 [submodule "src/kit/taos-tools"]
 	path = src/kit/taos-tools
 	url = https://github.com/taosdata/taos-tools
diff --git a/cmake/input.inc b/cmake/input.inc
index bc79de48a482539660e6166b642144d754fc94a4..9d411e382b4a9b07de238cc1caaa246dcbda57bc 100755
--- a/cmake/input.inc
+++ b/cmake/input.inc
@@ -96,11 +96,12 @@ IF (${VERBOSE} MATCHES "true")
   SET(TD_BUILD_VERBOSE TRUE)
 ENDIF ()
 
-IF (${TSZ_ENABLED} MATCHES "true")
-  # define add
+# build TSZ by default
+IF ("${TSZ_ENABLED}" MATCHES "false")
+  set(VAR_TSZ "" CACHE INTERNAL "global variant empty" )
+ELSE()
+  # define add 
   MESSAGE(STATUS "build with TSZ enabled")
   ADD_DEFINITIONS(-DTD_TSZ)
   set(VAR_TSZ "TSZ" CACHE INTERNAL "global variant tsz" )
-ELSE()
-  set(VAR_TSZ "" CACHE INTERNAL "global variant empty" )
-ENDIF()
+ENDIF()
\ No newline at end of file
diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
index a8b4fd288ea83676c98fa9db5acc464b42f51992..d4526a8839dc41d91fd717d542c543b806db5fce 100644
--- a/deps/CMakeLists.txt
+++ b/deps/CMakeLists.txt
@@ -45,6 +45,6 @@ IF (TD_LINUX_64 AND JEMALLOC_ENABLED)
   INCLUDE_DIRECTORIES(${CMAKE_BINARY_DIR}/build/include)
 ENDIF ()
 
-IF (${TSZ_ENABLED} MATCHES "true")
+IF (NOT "${TSZ_ENABLED}" MATCHES "false")
   ADD_SUBDIRECTORY(TSZ)
 ENDIF()
diff --git a/deps/TSZ b/deps/TSZ
new file mode 160000
index 0000000000000000000000000000000000000000..11c1060d4f917dd799ae628b131db5d6a5ef6954
--- /dev/null
+++ b/deps/TSZ
@@ -0,0 +1 @@
+Subproject commit 11c1060d4f917dd799ae628b131db5d6a5ef6954
diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index ab4f5fa4f4344799e8cc0d0cc1f0a6be1b3328bc..a63fb76529fe485d0f072cb6e81cce165bcf1eb6 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -1800,9 +1800,10 @@ static void doInitGlobalConfig(void) {
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
-  assert(tsGlobalConfigNum < TSDB_CFG_MAX_NUM);
+  assert(tsGlobalConfigNum == TSDB_CFG_MAX_NUM);
 #else
-  assert(tsGlobalConfigNum < TSDB_CFG_MAX_NUM);
+  // if TD_TSZ macro define, have 5 count configs, so must add 5
+  assert(tsGlobalConfigNum + 5 == TSDB_CFG_MAX_NUM);
 #endif
 }
 
diff --git a/src/kit/taospack/taospack.c b/src/kit/taospack/taospack.c
index 9e7355b42af8fe296975f78960639de0a43a4d18..13360606df240966ec7cde494bbd07772f64be26 100644
--- a/src/kit/taospack/taospack.c
+++ b/src/kit/taospack/taospack.c
@@ -704,7 +704,7 @@ void leakFloat() {
 
 
 void leakTest(){
-  for(int i=0; i< 90000000000000; i++){
+  for(int i=0; i< 90000000; i++){
     if(i%10000==0)
         printf(" ---------- %d ---------------- \n", i);
     leakFloat();
diff --git a/src/util/inc/tconfig.h b/src/util/inc/tconfig.h
index fd9a340a25a752b18ab07a8fbb2691038af3b71b..c0a4986936f7d43d48aa4fac0be6f427f5db32f5 100644
--- a/src/util/inc/tconfig.h
+++ b/src/util/inc/tconfig.h
@@ -20,7 +20,7 @@
 extern "C" {
 #endif
 
-#define TSDB_CFG_MAX_NUM    131
+#define TSDB_CFG_MAX_NUM    133
 #define TSDB_CFG_PRINT_LEN  23
 #define TSDB_CFG_OPTION_LEN 24
 #define TSDB_CFG_VALUE_LEN  41