diff --git a/source/dnode/vnode/src/meta/metaTDBImpl.c b/source/dnode/vnode/src/meta/metaTDBImpl.c
index 3a5b55925b87a6217ba47fde7229ecf60793d1d1..4a65cf277b9dd11aeb9a0ee47cea6e19f314d10c 100644
--- a/source/dnode/vnode/src/meta/metaTDBImpl.c
+++ b/source/dnode/vnode/src/meta/metaTDBImpl.c
@@ -54,6 +54,11 @@ int metaOpenDB(SMeta *pMeta) {
 
   // Create and open the ENV
   A((tdbEnvCreate(&pEnv)), _err);
+#if 0
+  // Set options of the environment
+  A(tdbEnvSetPageSize(pEnv, 8192), _err);
+  A(tdbEnvSetCacheSize(pEnv, 16 * 1024 * 1024), _err);
+#endif
   A((tdbEnvOpen(&pEnv)), _err);
 
   // Create and open each DB
diff --git a/source/libs/tdb/inc/tdb.h b/source/libs/tdb/inc/tdb.h
index 5bbaf2ac88eec561b3066eb8e2ac8f628f7e9cd6..9a168c53117f93ff38e9cd6add5b076d4d0ce884 100644
--- a/source/libs/tdb/inc/tdb.h
+++ b/source/libs/tdb/inc/tdb.h
@@ -26,11 +26,19 @@ typedef struct STDb       TDB;
 typedef struct STDbEnv    TENV;
 typedef struct STDbCurosr TDBC;
 
+typedef int32_t pgsize_t;
+typedef int32_t cachesz_t;
+
 // TEVN
 int tdbEnvCreate(TENV **ppEnv);
 int tdbEnvOpen(TENV **ppEnv);
 int tdbEnvClose(TENV *pEnv);
 
+int       tdbEnvSetPageSize(TENV *pEnv, pgsize_t szPage);
+int       tdbEnvSetCacheSize(TENV *pEnv, cachesz_t szCache);
+pgsize_t  tdbEnvGetPageSize(TENV *pEnv);
+cachesz_t tdbEnvGetCacheSize(TENV *pEnv);
+
 // TDB
 int tdbCreate(TDB **ppDb);
 int tdbOpen(TDB **ppDb, const char *fname, const char *dbname, TENV *pEnv);
diff --git a/source/libs/tdb/src/db/pgfile.c b/source/libs/tdb/src/db/pgfile.c
index 1c3e2700b4b6ca109fbff588753f199e63bf3c6a..7f0ab55b000eb7f4f072300e44a6f11987b8ad43 100644
--- a/source/libs/tdb/src/db/pgfile.c
+++ b/source/libs/tdb/src/db/pgfile.c
@@ -44,7 +44,7 @@ int pgFileOpen(SPgFile **ppPgFile, const char *fname, SPgCache *pPgCache) {
     return -1;
   }
 
-  if (tdbGnrtFileID(fname, pPgFile->fileid) < 0) {
+  if (tdbGnrtFileID(fname, pPgFile->fileid, false) < 0) {
     pgFileClose(pPgFile);
     return -1;
   }
diff --git a/source/libs/tdb/src/db/tdb.c b/source/libs/tdb/src/db/tdb.c
index ffaef0addd5f625e50f2d6ae92d8ffb31d0b4614..bd8d7ec1f76b743767d16bc5ea8a058b33e24e3d 100644
--- a/source/libs/tdb/src/db/tdb.c
+++ b/source/libs/tdb/src/db/tdb.c
@@ -70,7 +70,12 @@ int tdbOpen(TDB **ppDb, const char *fname, const char *dbname, TENV *pEnv) {
 
   ASSERT(fname != NULL);
 
-  // Check if file exists (TODO)
+  // Check if file exists
+  if (tdbCheckFileAccess(fname, TDB_F_OK) != 0) {
+    if (1) {
+      // create the file
+    }
+  }
 
   // Check if the SPgFile already opened
   pPgFile = tdbEnvGetPageFile(pEnv, fileid);
diff --git a/source/libs/tdb/src/db/tdbEnv.c b/source/libs/tdb/src/db/tdbEnv.c
index 3d7e98f477387d09d35f3e7260659a1f2f4d629d..fe9238e1eb850621d21a5f1e33a7a7dd7e794926 100644
--- a/source/libs/tdb/src/db/tdbEnv.c
+++ b/source/libs/tdb/src/db/tdbEnv.c
@@ -57,6 +57,8 @@ int tdbEnvOpen(TENV **ppEnv) {
   pEnv = *ppEnv;
 
   TERR_A(ret, pgCacheCreate(&pPgCache, pEnv->pgSize, pEnv->cacheSize / pEnv->pgSize), _err);
+  TERR_A(ret, pgCacheOpen(&pPgCache), _err);
+
   pEnv->pPgCache = pPgCache;
 
   return 0;
@@ -72,6 +74,22 @@ int tdbEnvClose(TENV *pEnv) {
   return 0;
 }
 
+int tdbEnvSetPageSize(TENV *pEnv, pgsize_t szPage) {
+  /* TODO */
+  pEnv->pgSize = szPage;
+  return 0;
+}
+
+int tdbEnvSetCacheSize(TENV *pEnv, cachesz_t szCache) {
+  /* TODO */
+  pEnv->cacheSize = szCache;
+  return 0;
+}
+
+pgsize_t tdbEnvGetPageSize(TENV *pEnv) { return pEnv->pgSize; }
+
+cachesz_t tdbEnvGetCacheSize(TENV *pEnv) { return pEnv->cacheSize; }
+
 SPgFile *tdbEnvGetPageFile(TENV *pEnv, const uint8_t fileid[]) {
   // TODO
   return NULL;
diff --git a/source/libs/tdb/src/db/tdbUtil.c b/source/libs/tdb/src/db/tdbUtil.c
index 6391397efd08db111c95b4dad3c2dfb33d983a31..856a54a2da3bf76ecc7d3056fed6a3f72c3b1de3 100644
--- a/source/libs/tdb/src/db/tdbUtil.c
+++ b/source/libs/tdb/src/db/tdbUtil.c
@@ -15,7 +15,7 @@
 
 #include "tdbInt.h"
 
-int tdbGnrtFileID(const char *fname, uint8_t *fileid) {
+int tdbGnrtFileID(const char *fname, uint8_t *fileid, bool unique) {
   struct stat statbuf;
 
   if (stat(fname, &statbuf) < 0) {
@@ -26,8 +26,27 @@ int tdbGnrtFileID(const char *fname, uint8_t *fileid) {
 
   ((uint64_t *)fileid)[0] = (uint64_t)statbuf.st_ino;
   ((uint64_t *)fileid)[1] = (uint64_t)statbuf.st_dev;
-  ((uint64_t *)fileid)[2] = rand();
+  if (unique) {
+    ((uint64_t *)fileid)[2] = rand();
+  }
 
   return 0;
 }
 
+int tdbCheckFileAccess(const char *pathname, int mode) {
+  int flags = 0;
+
+  if (mode & TDB_F_OK) {
+    flags |= F_OK;
+  }
+
+  if (mode & TDB_R_OK) {
+    flags |= R_OK;
+  }
+
+  if (mode & TDB_W_OK) {
+    flags |= W_OK;
+  }
+
+  return access(pathname, flags);
+}
\ 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
index 1b591a5c3fd84d7fab30bdd5b335a04fc99c2db2..cc7927d51b0256de3f0edb6ccc0e401647d75f14 100644
--- a/source/libs/tdb/src/db/tdb_mpool.c
+++ b/source/libs/tdb/src/db/tdb_mpool.c
@@ -119,7 +119,7 @@ int tdbMPoolFileOpen(TDB_MPFILE **mpfp, const char *fname, TDB_MPOOL *mp) {
     goto _err;
   }
 
-  if (tdbGnrtFileID(fname, mpf->fileid) < 0) {
+  if (tdbGnrtFileID(fname, mpf->fileid, false) < 0) {
     goto _err;
   }
 
diff --git a/source/libs/tdb/src/inc/tdbInt.h b/source/libs/tdb/src/inc/tdbInt.h
index 1500fee6dc44a63f58fb4f3bf11ae745fe0bdb67..74fed019e7dda0c42c15a8a05d8c4ee08d3387cf 100644
--- a/source/libs/tdb/src/inc/tdbInt.h
+++ b/source/libs/tdb/src/inc/tdbInt.h
@@ -16,7 +16,6 @@
 #ifndef _TD_TDB_INTERNAL_H_
 #define _TD_TDB_INTERNAL_H_
 
-#include "os.h"
 #include "tlist.h"
 #include "tlockfree.h"
 
@@ -64,14 +63,12 @@ static FORCE_INLINE int tdbCmprPgId(const void *p1, const void *p2) {
 typedef int32_t frame_id_t;
 
 // pgsize_t
-typedef int32_t pgsize_t;
 #define TDB_MIN_PGSIZE 512
 #define TDB_MAX_PGSIZE 16384
 #define TDB_DEFAULT_PGSIZE 4096
 #define TDB_IS_PGSIZE_VLD(s) (((s) >= TDB_MIN_PGSIZE) && ((s) <= TDB_MAX_PGSIZE))
 
 // cache
-typedef int32_t cachesz_t;
 #define TDB_DEFAULT_CACHE_SIZE (256 * 1024)  // 256K
 
 // tdb_log
diff --git a/source/libs/tdb/src/inc/tdbUtil.h b/source/libs/tdb/src/inc/tdbUtil.h
index 6ffb9dd3d4f362bfb870d5a3af1d2faa0000dbd1..8e1fe013e8110512bce570bc25916b5b277280b2 100644
--- a/source/libs/tdb/src/inc/tdbUtil.h
+++ b/source/libs/tdb/src/inc/tdbUtil.h
@@ -22,7 +22,12 @@ extern "C" {
 
 #define TDB_ROUND8(x) (((x) + 7) & ~7)
 
-int tdbGnrtFileID(const char *fname, uint8_t *fileid);
+int tdbGnrtFileID(const char *fname, uint8_t *fileid, bool unique);
+
+#define TDB_F_OK 0x1
+#define TDB_R_OK 0x2
+#define TDB_W_OK 0x4
+int tdbCheckFileAccess(const char *pathname, int mode);
 
 #ifdef __cplusplus
 }