diff --git a/source/libs/tdb/src/db/tdb_mpfile.c b/source/libs/tdb/src/db/tdb_mpfile.c
new file mode 100644
index 0000000000000000000000000000000000000000..6dea4a4e57392be988126c579648f39a8270b9bf
--- /dev/null
+++ b/source/libs/tdb/src/db/tdb_mpfile.c
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
\ No newline at end of file
diff --git a/source/libs/tdb/src/db/tdb_mpool.c b/source/libs/tdb/src/db/tdb_mpool.c
new file mode 100644
index 0000000000000000000000000000000000000000..ac4018d3481dfdf46e4bcf991da2c6e7e142ed27
--- /dev/null
+++ b/source/libs/tdb/src/db/tdb_mpool.c
@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "tdb_mpool.h"
\ No newline at end of file
diff --git a/source/libs/tdb/src/inc/tdb_inc.h b/source/libs/tdb/src/inc/tdb_inc.h
index 1e9c3dd8cce61facc1d26f0e02f1214d42b52add..cce6bc3bdad01fdf4632438d9cb9d749ad79d450 100644
--- a/source/libs/tdb/src/inc/tdb_inc.h
+++ b/source/libs/tdb/src/inc/tdb_inc.h
@@ -17,6 +17,7 @@
 #define _TD_TDB_INC_H_
 
 #include "os.h"
+#include "tlist.h"
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/source/libs/tdb/src/inc/tdb_mpfile.h b/source/libs/tdb/src/inc/tdb_mpfile.h
index 74593af2f660dac2d6f0f5fb97b271c9946a25d2..cd4823081a5baa3684234d610117643d85f86e09 100644
--- a/source/libs/tdb/src/inc/tdb_mpfile.h
+++ b/source/libs/tdb/src/inc/tdb_mpfile.h
@@ -16,7 +16,6 @@
 #ifndef _TD_TDB_MPFILE_H_
 #define _TD_TDB_MPFILE_H_
 
-#include "tdbDef.h"
 #include "tdb_mpool.h"
 
 #ifdef __cplusplus
diff --git a/source/libs/tdb/src/inc/tdb_mpool.h b/source/libs/tdb/src/inc/tdb_mpool.h
index 1023b14a5027fe6d6fa6488518ee3ef25a3f5e35..8d113e5edc3840bd3a6a0fb9d327f98b8278382b 100644
--- a/source/libs/tdb/src/inc/tdb_mpool.h
+++ b/source/libs/tdb/src/inc/tdb_mpool.h
@@ -25,6 +25,12 @@ extern "C" {
 // Exposed handle
 typedef struct TDB_MPOOL TDB_MPOOL;
 
+#define TDB_FILE_UID_LEN 20
+typedef struct {
+  uint8_t fuid[TDB_FILE_UID_LEN];
+  pgid_t  pgid;
+} mp_pgid_t;
+
 // Exposed apis
 int tdbOpenMP(TDB_MPOOL **mpp, uint64_t cachesize, pgsize_t pgsize);
 int tdbCloseMP(TDB_MPOOL *mp);
@@ -32,15 +38,9 @@ int tdbMPFetchPage(TDB_MPOOL *mp, mp_pgid_t mpgid, void *p);
 int tdbMpUnfetchPage(TDB_MPOOL *mp, mp_pgid_t mpgid, void *p);
 
 // Hidden impls
-#define TDB_FILE_UID_LEN 20
-
-typedef struct {
-  uint8_t fuid[TDB_FILE_UID_LEN];
-  pgid_t  pgid;
-} mp_pgid_t;
 
 typedef struct MP_PAGE {
-  SRWLatch  rwLatch;
+  // SRWLatch  rwLatch;
   mp_pgid_t mpgid;
   uint8_t   dirty;
   int32_t   pinRef;