diff --git a/src/util/inc/tbuffer.h b/src/util/inc/tbuffer.h
index c3bb336e817eb4eade3c97c0f5ea9e17553e88c5..9dc6d97eb6acce4077cc2e7b93c05a49839e68f7 100644
--- a/src/util/inc/tbuffer.h
+++ b/src/util/inc/tbuffer.h
@@ -24,45 +24,78 @@
 
 /*
 SBuffer can be used to read or write a buffer, but cannot be used for both
-read & write at a same time.
-Read example:
-   SBuffer rbuf;
-   if (tbufBeginOperation(&rbuf) != 0) {
-      // handling errors
-   }
-   tbufInitRead(&rbuf, data, 1024);
-   int32_t a = tbufReadInt32(&rbuf);
-   // other read functions
-
-Write example:
-   SBuffer wbuf;
-   if (tbufBeginOperation(&wbuf) != 0) {
-      // handling errors
-   }
-   tbufInitWrite(&wbuf, 1024);
-   tbufWriteInt32(&wbuf, 10);
-   // other write functions
-   size_t size = tbufGetSize(&wbuf);
-   char* data = tbufGetBuffer(&wbuf, true);
-   tbufUninitWrite(&wbuf);
+read & write at a same time. Below is an example:
+
+int main(int argc, char** argv) {
+  //--------------------- write ------------------------
+  SBuffer wbuf;
+  int32_t code = tbufBeginWrite(&wbuf);
+  if (code != 0) {
+    // handle errors
+    return 0;
+  }
+
+  // reserve 1024 bytes for the buffer to improve performance
+  tbufEnsureCapacity(&wbuf, 1024);
+
+  // write 5 integers to the buffer
+  for (int i = 0; i < 5; i++) {
+    tbufWriteInt32(&wbuf, i);
+  }
+
+  // write a string to the buffer
+  tbufWriteString(&wbuf, "this is a string.\n");
+
+  // acquire the result and close the write buffer
+  size_t size = tbufTell(&wbuf);
+  char*  data = tbufGetData(&wbuf, true);
+  tbufClose(&wbuf, true);
+
+
+  //------------------------ read -----------------------
+  SBuffer rbuf;
+  code = tbufBeginRead(&rbuf, data, size);
+  if (code != 0) {
+    printf("you will see this message after print out 5 integers and a string.\n");
+    tbufClose(&rbuf, false);
+    return 0;
+  }
+
+  // read & print out 5 integers
+  for (int i = 0; i < 5; i++) {
+    printf("%d\n", tbufReadInt32(&rbuf));
+  }
+
+  // read & print out a string
+  printf(tbufReadString(&rbuf, NULL));
+
+  // try read another integer, this result in an error as there no this integer
+  tbufReadInt32(&rbuf);
+
+  printf("you should not see this message.\n");
+  tbufClose(&rbuf, false);
+
+  return 0;
+}
 */
 typedef struct {
   jmp_buf jb;
-  char* buf;
+  char* data;
   size_t pos;
   size_t size;
 } SBuffer;
 
 
 // common functions can be used in both read & write
-#define tbufBeginOperation(buf) setjmp((buf)->jb)
+#define tbufThrowError(buf, code) longjmp((buf)->jb, (code))
 size_t tbufTell(SBuffer* buf);
 size_t tbufSeekTo(SBuffer* buf, size_t pos);
 size_t tbufSkip(SBuffer* buf, size_t size);
+void tbufClose(SBuffer* buf, bool keepData);
 
 
 // basic read functions
-void tbufInitRead(SBuffer* buf, void* data, size_t size);
+#define tbufBeginRead(buf, data, len) (((buf)->data = (char*)data), ((buf)->pos = 0), ((buf)->size = ((data) == NULL) ? 0 : (len)), setjmp((buf)->jb))
 char* tbufRead(SBuffer* buf, size_t size);
 void tbufReadToBuffer(SBuffer* buf, void* dst, size_t size);
 const char* tbufReadString(SBuffer* buf, size_t* len);
@@ -70,10 +103,9 @@ size_t tbufReadToString(SBuffer* buf, char* dst, size_t size);
 
 
 // basic write functions
-void tbufInitWrite(SBuffer* buf, size_t size);
+#define tbufBeginWrite(buf) ((buf)->data = NULL, ((buf)->pos = 0), ((buf)->size = 0), setjmp((buf)->jb))
 void tbufEnsureCapacity(SBuffer* buf, size_t size);
-char* tbufGetResult(SBuffer* buf, bool takeOver);
-void tbufUninitWrite(SBuffer* buf);
+char* tbufGetData(SBuffer* buf, bool takeOver);
 void tbufWrite(SBuffer* buf, const void* data, size_t size);
 void tbufWriteAt(SBuffer* buf, size_t pos, const void* data, size_t size);
 void tbufWriteStringLen(SBuffer* buf, const char* str, size_t len);
@@ -81,24 +113,24 @@ void tbufWriteString(SBuffer* buf, const char* str);
 
 
 // read & write function for primitive types
-#ifndef TBUFFER_DEFINE_OPERATION
-#define TBUFFER_DEFINE_OPERATION(type, name) \
+#ifndef TBUFFER_DEFINE_FUNCTION
+#define TBUFFER_DEFINE_FUNCTION(type, name) \
   type tbufRead##name(SBuffer* buf); \
   void tbufWrite##name(SBuffer* buf, type data); \
   void tbufWrite##name##At(SBuffer* buf, size_t pos, type data);
 #endif
 
-TBUFFER_DEFINE_OPERATION( bool, Bool )
-TBUFFER_DEFINE_OPERATION( char, Char )
-TBUFFER_DEFINE_OPERATION( int8_t, Int8 )
-TBUFFER_DEFINE_OPERATION( uint8_t, Unt8 )
-TBUFFER_DEFINE_OPERATION( int16_t, Int16 )
-TBUFFER_DEFINE_OPERATION( uint16_t, Uint16 )
-TBUFFER_DEFINE_OPERATION( int32_t, Int32 )
-TBUFFER_DEFINE_OPERATION( uint32_t, Uint32 )
-TBUFFER_DEFINE_OPERATION( int64_t, Int64 )
-TBUFFER_DEFINE_OPERATION( uint64_t, Uint64 )
-TBUFFER_DEFINE_OPERATION( float, Float )
-TBUFFER_DEFINE_OPERATION( double, Double )
+TBUFFER_DEFINE_FUNCTION( bool, Bool )
+TBUFFER_DEFINE_FUNCTION( char, Char )
+TBUFFER_DEFINE_FUNCTION( int8_t, Int8 )
+TBUFFER_DEFINE_FUNCTION( uint8_t, Unt8 )
+TBUFFER_DEFINE_FUNCTION( int16_t, Int16 )
+TBUFFER_DEFINE_FUNCTION( uint16_t, Uint16 )
+TBUFFER_DEFINE_FUNCTION( int32_t, Int32 )
+TBUFFER_DEFINE_FUNCTION( uint32_t, Uint32 )
+TBUFFER_DEFINE_FUNCTION( int64_t, Int64 )
+TBUFFER_DEFINE_FUNCTION( uint64_t, Uint64 )
+TBUFFER_DEFINE_FUNCTION( float, Float )
+TBUFFER_DEFINE_FUNCTION( double, Double )
 
 #endif
\ No newline at end of file
diff --git a/src/util/src/tbuffer.c b/src/util/src/tbuffer.c
index 0b8cfbbae9bf5c9e62d895dfe6005f6a79516537..ac7d22078d42eea60fde157ea364dee146203a2f 100644
--- a/src/util/src/tbuffer.c
+++ b/src/util/src/tbuffer.c
@@ -13,7 +13,11 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#define TBUFFER_DEFINE_OPERATION(type, name) \
+#include <stdlib.h>
+#include <memory.h>
+#include <assert.h>
+
+#define TBUFFER_DEFINE_FUNCTION(type, name) \
   type tbufRead##name(SBuffer* buf) {            \
     type ret;                                    \
     tbufReadToBuffer(buf, &ret, sizeof(type));   \
@@ -38,7 +42,8 @@ size_t tbufTell(SBuffer* buf) {
 
 size_t tbufSeekTo(SBuffer* buf, size_t pos) {
   if (pos > buf->size) {
-    longjmp(buf->jb, 1);
+    // TODO: update error code, other tbufThrowError need to be changed too
+    tbufThrowError(buf, 1);
   }
   size_t old = buf->pos;
   buf->pos = pos;
@@ -49,18 +54,20 @@ size_t tbufSkip(SBuffer* buf, size_t size) {
   return tbufSeekTo(buf, buf->pos + size);
 }
 
-////////////////////////////////////////////////////////////////////////////////
-// read functions
-
-void tbufInitRead(SBuffer* buf, void* data, size_t size) {
-  buf->buf = (char*)data;
+void tbufClose(SBuffer* buf, bool keepData) {
+  if (!keepData) {
+    free(buf->data);
+  }
+  buf->data = NULL;
   buf->pos = 0;
-  // empty buffer is not an error, but read an empty buffer is
-  buf->size = (data == NULL) ? 0 : size;
+  buf->size = 0;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+// read functions
+
 char* tbufRead(SBuffer* buf, size_t size) {
-  char* ret = buf->buf + buf->pos;
+  char* ret = buf->data + buf->pos;
   tbufSkip(buf, size);
   return ret;
 }
@@ -72,8 +79,8 @@ void tbufReadToBuffer(SBuffer* buf, void* dst, size_t size) {
 }
 
 const char* tbufReadString(SBuffer* buf, size_t* len) {
-  uint16_t l = tbufReadUint16();
-  char*    ret = buf->buf + buf->pos;
+  uint16_t l = tbufReadUint16(buf);
+  char*    ret = buf->data + buf->pos;
   tbufSkip(buf, l + 1);
   ret[l] = 0;  // ensure the string end with '\0'
   if (len != NULL) {
@@ -83,9 +90,12 @@ const char* tbufReadString(SBuffer* buf, size_t* len) {
 }
 
 size_t tbufReadToString(SBuffer* buf, char* dst, size_t size) {
+  assert(dst != NULL);
   size_t      len;
   const char* str = tbufReadString(buf, &len);
-  if (len >= size) len = size - 1;
+  if (len >= size) {
+    len = size - 1;
+  }
   memcpy(dst, str, len);
   dst[len] = 0;
   return len;
@@ -98,57 +108,53 @@ size_t tbufReadToString(SBuffer* buf, char* dst, size_t size) {
 void tbufEnsureCapacity(SBuffer* buf, size_t size) {
   size += buf->pos;
   if (size > buf->size) {
-    char*  nbuf = NULL;
     size_t nsize = size + buf->size;
-    nbuf = realloc(buf->buf, nsize);
-    if (nbuf == NULL) {
-      longjmp(buf->jb, 2);
+    char* data = realloc(buf->data, nsize);
+    if (data == NULL) {
+      tbufThrowError(buf, 2);
     }
-    buf->buf = nbuf;
+    buf->data = data;
     buf->size = nsize;
   }
 }
 
-void tbufInitWrite(SBuffer* buf, size_t size) {
-    buf->buf = NULL;
-    buf->pos = 0;
-    buf->size = 0;
-    tbufEnsureCapacity(buf, size);
-}
-
-char* tbufGetResult(SBuffer* buf, bool takeOver) {
-		char* ret = buf->buf;
+char* tbufGetData(SBuffer* buf, bool takeOver) {
+		char* ret = buf->data;
 		if (takeOver) {
       buf->pos = 0;
       buf->size = 0;
-			buf->buf = NULL;
+			buf->data = NULL;
     }
 		return ret;
 }
 
-void tbufUninitWrite(SBuffer* buf) {
-    free(buf->buf);
+void tbufEndWrite(SBuffer* buf) {
+    free(buf->data);
+    buf->data = NULL;
+    buf->pos = 0;
+    buf->size = 0;
 }
 
 void tbufWrite(SBuffer* buf, const void* data, size_t size) {
-  tbufEnsureCapacity(size);
-  memcpy(buf->buf + buf->pos, data, size);
+  assert(data != NULL);
+  tbufEnsureCapacity(buf, size);
+  memcpy(buf->data + buf->pos, data, size);
   buf->pos += size;
 }
 
 void tbufWriteAt(SBuffer* buf, size_t pos, const void* data, size_t size) {
+  assert(data != NULL);
   // this function can only be called to fill the gap on previous writes,
   // so 'pos + size <= buf->pos' must be true
-  if (pos + size > buf->pos) {
-    longjmp(buf->jb, 3);
-  }
-  memcpy(buf->buf + pos, data, size);
+  assert(pos + size <= buf->pos);
+  memcpy(buf->data + pos, data, size);
 }
 
 void tbufWriteStringLen(SBuffer* buf, const char* str, size_t len) {
-  if (len > 0xffff) {
-    longjmp(buf->jb , 4);
-  }
+  // maximum string length is 65535, if longer string is required
+  // this function and the corresponding read function need to be
+  // revised.
+  assert(len <= 0xffff);
   tbufWriteUint16(buf, (uint16_t)len);
   tbufWrite(buf, str, len + 1);
 }
diff --git a/src/vnode/CMakeLists.txt b/src/vnode/CMakeLists.txt
index 5a7b605cb81c20bb8f530e30a0dc6a34688a92ec..92270a886f4cae4363e8c774bfa2622c3989b23b 100644
--- a/src/vnode/CMakeLists.txt
+++ b/src/vnode/CMakeLists.txt
@@ -1,4 +1,7 @@
-CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
-PROJECT(TDengine)
+cmake_minimum_required(VERSION 2.8)
 
-ADD_SUBDIRECTORY(detail)
\ No newline at end of file
+project(tsdb)
+
+add_subdirectory(common)
+
+add_subdirectory(tsdb)
\ No newline at end of file
diff --git a/src/vnode/common/CMakeLists.txt b/src/vnode/common/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..38803c2421ffc97bbecf018d02b962228af9eb62
--- /dev/null
+++ b/src/vnode/common/CMakeLists.txt
@@ -0,0 +1,8 @@
+aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/src SOURCE_LIST)
+
+list(REMOVE_ITEM SOURCE_LIST ${CMAKE_CURRENT_SOURCE_DIR}/src/vnodePeer.c)
+
+message(STATUS "Common source file ${SOURCE_LIST}")
+
+add_library(common ${SOURCE_LIST})
+target_include_directories(common PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/inc")
diff --git a/src/vnode/common/src/schema.c b/src/vnode/common/src/schema.c
index cf0664c7cc0dee5542cc958921e01c60acb568ff..79b41533d23a0ef5ae8ace9da67e9416d5f604b0 100644
--- a/src/vnode/common/src/schema.c
+++ b/src/vnode/common/src/schema.c
@@ -51,7 +51,7 @@ SISchema tdConvertSchemaToInline(SSchema *pSchema) {
   char *pName = TD_ISCHEMA_COL_NAMES(pISchema);
   for (int32_t i = 0; i < totalCols; i++) {
     SColumn *pCol = TD_SCHEMA_COLUMN_AT(TD_ISCHEMA_SCHEMA(pISchema), i);
-    char *   colName = TD_COLUMN_NAME(TD_SCHEMA_COLUMN_AT(pSchema, i), i);
+    char *   colName = TD_COLUMN_NAME(TD_SCHEMA_COLUMN_AT(pSchema, i));
 
     TD_COLUMN_NAME(pCol) = pName;
 
diff --git a/src/vnode/tsdb/CMakeLists.txt b/src/vnode/tsdb/CMakeLists.txt
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..4a88fbd7d65dfe6a327d7b5ad0348fb12dc079e4 100644
--- a/src/vnode/tsdb/CMakeLists.txt
+++ b/src/vnode/tsdb/CMakeLists.txt
@@ -0,0 +1,9 @@
+aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/src SOURCE_LIST)
+
+message(STATUS "tsdb source files: ${SOURCE_LIST}")
+
+add_library(tsdb STATIC ${SOURCE_LIST})
+
+target_link_libraries(tsdb common)
+
+target_include_directories(tsdb PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/inc")
\ No newline at end of file
diff --git a/src/vnode/tsdb/inc/tsdb.h b/src/vnode/tsdb/inc/tsdb.h
index 2117c951ca8b74d1d850d92fc2cd418146c32a76..b04f0148f06b27d8dd3b2e6d3e35519828eb2e08 100644
--- a/src/vnode/tsdb/inc/tsdb.h
+++ b/src/vnode/tsdb/inc/tsdb.h
@@ -8,7 +8,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 
-#include "cache.h"
+// #include "cache.h"
 #include "schema.h"
 
 #define TSDB_VERSION_MAJOR 1
@@ -18,6 +18,21 @@ typedef void    tsdb_repo_t;  // use void to hide implementation details from ou
 typedef int32_t table_id_t;   // table ID type in this repository
 typedef int16_t tsdb_id_t;    // TSDB repository ID
 
+// Submit message
+typedef struct {
+  int32_t numOfTables;
+  char    data[];
+} SSubmitMsg;
+
+// Submit message for one table
+typedef struct {
+  table_id_t tableId;       // table ID to insert
+  int32_t    sversion;      // data schema version
+  int32_t    numOfRows;     // number of rows data
+  int64_t    uid;           // table UID to insert
+  char       data[];
+} SSubmitBlock;
+
 // Retention policy.
 typedef struct {
   // TODO: Need a more fancy description
@@ -54,7 +69,7 @@ typedef struct {
   SDataShardPolicy dataShardPolicy;
   SBlockRowsPolicy blockRowsPolicy;
   SRetentionPolicy retentionPlicy;  // retention configuration
-  SCachePool *     cachePool;       // the cache pool the repository to use
+  void *           cachePool;       // the cache pool the repository to use
 } STSDBCfg;
 
 // the TSDB repository info
@@ -205,6 +220,9 @@ typedef struct STimeWindow {
   int64_t ekey;
 } STimeWindow;
 
+typedef struct {
+} SColumnFilterInfo;
+
 // query condition to build vnode iterator
 typedef struct STSDBQueryCond {
   STimeWindow       twindow;
@@ -237,6 +255,10 @@ typedef struct STableIDList {
   int32_t   num;
 } STableIDList;
 
+typedef struct {
+
+} SFields;
+
 /**
  * Get the data block iterator, starting from position according to the query condition
  * @param pRepo  the TSDB repository to query on
diff --git a/src/vnode/tsdb/inc/tsdbCache.h b/src/vnode/tsdb/inc/tsdbCache.h
index b0993c1e093be67e1267c3bc897f25cf40d50c01..049cdc0847d8da27f46fbf77d30d9d24fc3bc67a 100644
--- a/src/vnode/tsdb/inc/tsdbCache.h
+++ b/src/vnode/tsdb/inc/tsdbCache.h
@@ -3,7 +3,7 @@
 
 #include <stdint.h>
 
-#include "cache.h"
+// #include "cache.h"
 
 #define TSDB_DEFAULT_CACHE_BLOCK_SIZE 16*1024*1024 /* 16M */
 
@@ -13,22 +13,21 @@ typedef struct {
   int32_t numOfRows // numOfRows
 } STableCacheInfo;
 
-typedef struct {
-  char *pData;
-  STableCacheInfo *pTableInfo;
-  SCacheBlock *prev;
-  SCacheBlock *next;
+typedef struct _tsdb_cache_block {
+  char *                    pData;
+  STableCacheInfo *         pTableInfo;
+  struct _tsdb_cache_block *prev;
+  struct _tsdb_cache_block *next;
 } STSDBCacheBlock;
 
 // Use a doublely linked list to implement this
 typedef struct STSDBCache {
   // Number of blocks the cache is allocated
-  int32_t numOfBlocks;
+  int32_t          numOfBlocks;
   STSDBCacheBlock *cacheList;
-  void *  current;
+  void *           current;
 } SCacheHandle;
 
-
 // ---- Operation on STSDBCacheBlock
 #define TSDB_CACHE_BLOCK_DATA(pBlock) ((pBlock)->pData)
 #define TSDB_CACHE_AVAIL_SPACE(pBlock) ((char *)((pBlock)->pTableInfo) - ((pBlock)->pData))
diff --git a/src/vnode/tsdb/inc/tsdbFile.h b/src/vnode/tsdb/inc/tsdbFile.h
index 91abea076f4551257ec83620833c00045a084fb2..02eb0c78813a7e89c326bfc6b99b3351b805ab67 100644
--- a/src/vnode/tsdb/inc/tsdbFile.h
+++ b/src/vnode/tsdb/inc/tsdbFile.h
@@ -1,7 +1,8 @@
 #if !defined(_TD_TSDB_FILE_H_)
 #define _TD_TSDB_FILE_H_
 
-#include "tstring.h"
+#include <stdint.h>
+// #include "tstring.h"
 
 typedef int32_t file_id_t;
 
@@ -24,7 +25,7 @@ typedef struct {
 } SFileInfo;
 
 typedef struct {
-  tstring_t fname;
+  char *    fname;
   SFileInfo fInfo;
 } SFILE;
 
diff --git a/src/vnode/tsdb/inc/tsdbMeta.h b/src/vnode/tsdb/inc/tsdbMeta.h
index 28bafa1dc8a8b426edca2e4a0397d23676d1b1ec..588394459e151f4fc03c0c5923dcf05082daeba5 100644
--- a/src/vnode/tsdb/inc/tsdbMeta.h
+++ b/src/vnode/tsdb/inc/tsdbMeta.h
@@ -4,7 +4,7 @@
 
 #include <pthread.h>
 
-#include "taosdef.h"
+// #include "taosdef.h"
 
 // Initially, there are 4 tables
 #define TSDB_INIT_NUMBER_OF_SUPER_TABLE 4
@@ -30,7 +30,7 @@ typedef struct STable {
   // For TSDB_SUPER_TABLE, it is the schema including tags
   // For TSDB_NTABLE, it is only the schema, not including tags
   // For TSDB_STABLE, it is NULL
-  SVSchema *pSchema;
+  SSchema *pSchema;
 
   // Tag value for this table
   // For TSDB_SUPER_TABLE and TSDB_NTABLE, it is NULL
@@ -75,7 +75,7 @@ typedef struct {
 #define TSDB_TABLE_CACHE_DATA(pTable) ((pTable)->content.pData)
 #define TSDB_SUPER_TABLE_INDEX(pTable) ((pTable)->content.pIndex)
 
-SVSchema *tsdbGetTableSchema(STable *pTable);
+SSchema *tsdbGetTableSchema(STable *pTable);
 
 // ---- Operation on SMetaHandle
 #define TSDB_NUM_OF_TABLES(pHandle) ((pHandle)->numOfTables)
diff --git a/src/vnode/tsdb/src/tsdb.c b/src/vnode/tsdb/src/tsdb.c
index d0087945240e8ac83befb1a5fb45a7a4c3aa41ed..7e13e3183ad8ab33e9f975356359fd7d247f069c 100644
--- a/src/vnode/tsdb/src/tsdb.c
+++ b/src/vnode/tsdb/src/tsdb.c
@@ -2,14 +2,15 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-#include "taosdef.h"
+// #include "taosdef.h"
 // #include "disk.h"
+#include "tsdb.h"
 #include "tsdbCache.h"
 #include "tsdbMeta.h"
 
 typedef struct STSDBRepo {
   // TSDB configuration
-  STSDBcfg *pCfg;
+  STSDBCfg *pCfg;
 
   // The meter meta handle of this TSDB repository
   SMetaHandle *pMetaHandle;
@@ -18,12 +19,12 @@ typedef struct STSDBRepo {
   SCacheHandle *pCacheHandle;
 
   // Disk tier handle for multi-tier storage
-  SDiskTier *pDiskTier;
+  void *pDiskTier;
 
   // File Store
   void *pFileStore;
 
-  pthread_mutext_t tsdbMutex;
+  pthread_mutex_t tsdbMutex;
 
 } STSDBRepo;
 
diff --git a/src/vnode/tsdb/src/tsdbFileStore.c b/src/vnode/tsdb/src/tsdbFileStore.c
index f6cc959f8f6dd24fb9ef4d65c23e5d8debf97929..a47f2eb1e48c85b47ab4e5adce262074d03942d6 100644
--- a/src/vnode/tsdb/src/tsdbFileStore.c
+++ b/src/vnode/tsdb/src/tsdbFileStore.c
@@ -1,6 +1,6 @@
 #include "tsdbFile.h"
 
 char *tsdbGetFileName(char *dirName, char *fname, TSDB_FILE_TYPE type){
-    char *suffix = tsdbFileSuffix[type];
+    // char *suffix = tsdbFileSuffix[type];
     // TODO 
 }
\ No newline at end of file
diff --git a/src/vnode/tsdb/src/tsdbMeta.c b/src/vnode/tsdb/src/tsdbMeta.c
index 5bc82dfa103056e58abe3746460503d85b8e824c..9fad7b126931f40ccae7a3c3bf001e933c4d9115 100644
--- a/src/vnode/tsdb/src/tsdbMeta.c
+++ b/src/vnode/tsdb/src/tsdbMeta.c
@@ -1,6 +1,7 @@
 #include <stdlib.h>
 
-#include "taosdef.h"
+// #include "taosdef.h"
+#include "tsdb.h"
 #include "tsdbMeta.h"
 
 SMetaHandle *tsdbCreateMetaHandle(int32_t numOfTables) {
@@ -11,7 +12,7 @@ SMetaHandle *tsdbCreateMetaHandle(int32_t numOfTables) {
 
   pMetahandle->numOfTables = 0;
   pMetahandle->numOfSuperTables = 0;
-  pMetahandle->pTables = calloc(sizeof(STable *) * numOfTables);
+  pMetahandle->pTables = calloc(sizeof(STable *), numOfTables);
   if (pMetahandle->pTables == NULL) {
     free(pMetahandle);
     return NULL;