diff --git a/src/vnode/tests/tsdb/tsdbTests.cpp b/src/vnode/tests/tsdb/tsdbTests.cpp
index 3e7a7cca5f4cc6ce5f443416c6b963bff764a5b9..3cf4b7727dca7358f2a91ad14b2acf4ebc4e9ff3 100644
--- a/src/vnode/tests/tsdb/tsdbTests.cpp
+++ b/src/vnode/tests/tsdb/tsdbTests.cpp
@@ -4,18 +4,12 @@
 #include "tsdb.h"
 
 TEST(TsdbTest, createTsdbRepo) {
-  STsdbCfg config;
+  STsdbCfg *pCfg = tsdbCreateDefaultCfg();
 
-  config.precision = TSDB_PRECISION_MILLI;
-  config.tsdbId = 0;
-  config.maxTables = 100;
-  config.daysPerFile = 10;
-  config.keep = 3650;
-  config.minRowsPerFileBlock = 100;
-  config.maxRowsPerFileBlock = 4096;
-  config.maxCacheSize = 4 * 1024 * 1024;
 
-  tsdb_repo_t *pRepo = tsdbCreateRepo("/root/mnt/test/vnode0", &config, NULL);
+  tsdb_repo_t *pRepo = tsdbCreateRepo("/root/mnt/test/vnode0", pCfg, NULL);
+
+  tsdbFreeCfg(pCfg);
 
   ASSERT_NE(pRepo, nullptr);
 
diff --git a/src/vnode/tsdb/inc/tsdbMeta.h b/src/vnode/tsdb/inc/tsdbMeta.h
index 99930e94540aee37bd49e6b6b3cddc43df66863b..bbd4ae7f737b2c4fc974d0cfd2cdbc3e71905027 100644
--- a/src/vnode/tsdb/inc/tsdbMeta.h
+++ b/src/vnode/tsdb/inc/tsdbMeta.h
@@ -76,8 +76,9 @@ typedef struct STable {
 
 typedef struct {
   int32_t  maxTables;
+  int32_t  nTables;
   STable **tables;    // array of normal tables
-  STable * stables;   // linked list of super tables
+  STable * stables;   // linked list of super tables // TODO use container to implement this
   void *   tableMap;  // hash map of uid ==> STable *
 } STsdbMeta;
 
diff --git a/src/vnode/tsdb/src/tsdbMeta.c b/src/vnode/tsdb/src/tsdbMeta.c
index e56254456cb1debd87c2af04aad3d9bf4ead8f9d..a6cf5d2d1be3c904d0af3efcda2dc95880510d9e 100644
--- a/src/vnode/tsdb/src/tsdbMeta.c
+++ b/src/vnode/tsdb/src/tsdbMeta.c
@@ -6,14 +6,8 @@
 #include "tsdb.h"
 #include "tsdbMeta.h"
 
-#define TSDB_MIN_TABLES 10
-#define TSDB_MAX_TABLES 100000
-#define TSDB_DEFAULT_NSTABLES 10
-
 #define TSDB_SUPER_TABLE_SL_LEVEL 5 // TODO: may change here
 
-#define IS_VALID_MAX_TABLES(maxTables) (((maxTables) >= TSDB_MIN_TABLES) && ((maxTables) <= TSDB_MAX_TABLES))
-
 static int     tsdbFreeTable(STable *pTable);
 static int32_t tsdbCheckTableCfg(STableCfg *pCfg);
 static STable *tsdbGetTableByUid(int64_t uid);
@@ -22,8 +16,6 @@ static int     tsdbAddTableIntoMap(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable);
 
 STsdbMeta *tsdbCreateMeta(int32_t maxTables) {
-  if (!IS_VALID_MAX_TABLES(maxTables)) return NULL;
-
   STsdbMeta *pMeta = (STsdbMeta *)malloc(sizeof(STsdbMeta));
   if (pMeta == NULL) {
     return NULL;