diff --git a/include/os/osDir.h b/include/os/osDir.h
index eda83ea0ea..223c603352 100644
--- a/include/os/osDir.h
+++ b/include/os/osDir.h
@@ -21,7 +21,7 @@ extern "C" {
 #endif
 
 void    taosRemoveDir(const char *dirname);
-int32_t taosDirExist(char *dirname);
+bool    taosDirExist(char *dirname);
 int32_t taosMkDir(const char *dirname);
 void    taosRemoveOldFiles(const char *dirname, int32_t keepDays);
 int32_t taosExpandDir(const char *dirname, char *outname, int32_t maxlen);
diff --git a/include/os/osFile.h b/include/os/osFile.h
index cbd5d693c5..7e3a5277c8 100644
--- a/include/os/osFile.h
+++ b/include/os/osFile.h
@@ -25,8 +25,12 @@ extern "C" {
 #ifndef ALLOW_FORBID_FUNC
     #define open OPEN_FUNC_TAOS_FORBID
     #define fopen FOPEN_FUNC_TAOS_FORBID
-    // #define close CLOSE_FUNC_TAOS_FORBID
-    // #define fclose FCLOSE_FUNC_TAOS_FORBID
+    #define access ACCESS_FUNC_TAOS_FORBID
+    #define stat STAT_FUNC_TAOS_FORBID
+    #define lstat LSTAT_FUNC_TAOS_FORBID
+    #define fstat FSTAT_FUNC_TAOS_FORBID
+    #define close CLOSE_FUNC_TAOS_FORBID
+    #define fclose FCLOSE_FUNC_TAOS_FORBID
 #endif
 
 #ifndef PATH_MAX
@@ -44,6 +48,12 @@ typedef struct TdFile *TdFilePtr;
 #define TD_FILE_AUTO_DEL  0x0040
 #define TD_FILE_EXCL      0x0080
 #define TD_FILE_STREAM    0x0100   // Only support taosFprintfFile, taosGetLineFile, taosGetLineFile, taosEOFFile
+TdFilePtr taosOpenFile(const char *path,int32_t tdFileOptions);
+
+#define TD_FILE_ACCESS_EXIST_OK 0x1
+#define TD_FILE_ACCESS_READ_OK  0x2
+#define TD_FILE_ACCESS_WRITE_OK 0x4
+bool taosCheckAccessFile(const char *pathname, int mode);
  
 int32_t taosLockFile(TdFilePtr pFile);
 int32_t taosUnLockFile(TdFilePtr pFile);
@@ -51,9 +61,9 @@ int32_t taosUnLockFile(TdFilePtr pFile);
 int32_t taosUmaskFile(int32_t maskVal);
  
 int32_t taosStatFile(const char *path, int64_t *size, int32_t *mtime);
+int32_t taosDevInoFile(const char *path, int64_t *stDev, int64_t *stIno);
 int32_t taosFStatFile(TdFilePtr pFile, int64_t *size, int32_t *mtime);
- 
-TdFilePtr taosOpenFile(const char *path,int32_t tdFileOptions);
+bool    taosCheckExistFile(const char *pathname);
  
 int64_t taosLSeekFile(TdFilePtr pFile, int64_t offset, int32_t whence);
 int32_t taosFtruncateFile(TdFilePtr pFile, int64_t length);
@@ -62,7 +72,7 @@ int32_t taosFsyncFile(TdFilePtr pFile);
 int64_t taosReadFile(TdFilePtr pFile, void *buf, int64_t count);
 int64_t taosPReadFile(TdFilePtr pFile, void *buf, int64_t count, int64_t offset);
 int64_t taosWriteFile(TdFilePtr pFile, const void *buf, int64_t count);
-void taosFprintfFile(TdFilePtr pFile, const char *format, ...);
+void    taosFprintfFile(TdFilePtr pFile, const char *format, ...);
 int64_t taosGetLineFile(TdFilePtr pFile, char ** __restrict__ ptrBuf);
 int32_t taosEOFFile(TdFilePtr pFile);
  
@@ -71,7 +81,7 @@ int64_t taosCloseFile(TdFilePtr *ppFile);
 int32_t taosRenameFile(const char *oldName, const char *newName);
 int64_t taosCopyFile(const char *from, const char *to);
  
-void taosGetTmpfilePath(const char *inputTmpDir, const char *fileNamePrefix, char *dstPath);
+void    taosGetTmpfilePath(const char *inputTmpDir, const char *fileNamePrefix, char *dstPath);
  
 int64_t taosSendFile(SocketFd fdDst, TdFilePtr pFileSrc, int64_t *offset, int64_t size);
 int64_t taosFSendFile(TdFilePtr pFileOut, TdFilePtr pFileIn, int64_t *offset, int64_t size);
@@ -79,7 +89,7 @@ int64_t taosFSendFile(TdFilePtr pFileOut, TdFilePtr pFileIn, int64_t *offset, in
 void *taosMmapReadOnlyFile(TdFilePtr pFile, int64_t length);
 bool taosValidFile(TdFilePtr pFile);
 
-int taosGetErrorFile(TdFilePtr pFile);
+int32_t taosGetErrorFile(TdFilePtr pFile);
 
 #ifdef __cplusplus
 }
diff --git a/source/common/test/commonTests.cpp b/source/common/test/commonTests.cpp
index 4821d60875..563efe4d54 100644
--- a/source/common/test/commonTests.cpp
+++ b/source/common/test/commonTests.cpp
@@ -1,6 +1,4 @@
-#include "tcommon.h"
 #include <gtest/gtest.h>
-#include <tep.h>
 #include <iostream>
 
 #pragma GCC diagnostic push
@@ -10,6 +8,8 @@
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #include "os.h"
 
+#include "tep.h"
+#include "tcommon.h"
 #include "taos.h"
 #include "tvariant.h"
 #include "tdef.h"
diff --git a/source/common/test/tmsgTest.cpp b/source/common/test/tmsgTest.cpp
index ca33d24a8c..e8c3284ea5 100644
--- a/source/common/test/tmsgTest.cpp
+++ b/source/common/test/tmsgTest.cpp
@@ -1,6 +1,6 @@
 #include <iostream>
 
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 
 #include "tmsg.h"
 
diff --git a/source/dnode/vnode/src/tq/tqMetaStore.c b/source/dnode/vnode/src/tq/tqMetaStore.c
index 6d5085ee74..ce00c98ff9 100644
--- a/source/dnode/vnode/src/tq/tqMetaStore.c
+++ b/source/dnode/vnode/src/tq/tqMetaStore.c
@@ -90,7 +90,7 @@ STqMetaStore* tqStoreOpen(STQ* pTq, const char* path, FTqSerialize serializer, F
   char name[pathLen + 10];
 
   strcpy(name, path);
-  if (taosDirExist(name) != 0 && taosMkDir(name) != 0) {
+  if (!taosDirExist(name) && taosMkDir(name) != 0) {
     terrno = TSDB_CODE_TQ_FAILED_TO_CREATE_DIR;
     tqError("failed to create dir:%s since %s ", name, terrstr());
   }
diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit.c b/source/dnode/vnode/src/tsdb/tsdbCommit.c
index 2e7116969e..7a95820115 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit.c
@@ -580,7 +580,7 @@ static int tsdbSetAndOpenCommitFile(SCommitH *pCommith, SDFileSet *pSet, int fid
     SDFile *pRSmadF = TSDB_READ_SMAD_FILE(&(pCommith->readh));
     SDFile *pWSmadF = TSDB_COMMIT_SMAD_FILE(pCommith);
 
-    if (access(TSDB_FILE_FULL_NAME(pRSmadF), F_OK) != 0) {
+    if (!taosCheckExistFile(TSDB_FILE_FULL_NAME(pRSmadF))) {
       tsdbDebug("vgId:%d create data file %s as not exist", REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pRSmadF));
       tsdbInitDFile(pRepo, pWSmadF, did, fid, FS_TXN_VERSION(REPO_FS(pRepo)), TSDB_FILE_SMAD);
 
@@ -614,7 +614,7 @@ static int tsdbSetAndOpenCommitFile(SCommitH *pCommith, SDFileSet *pSet, int fid
     SDFile *pRSmalF = TSDB_READ_SMAL_FILE(&(pCommith->readh));
     SDFile *pWSmalF = TSDB_COMMIT_SMAL_FILE(pCommith);
 
-    if ((pCommith->isLFileSame) && access(TSDB_FILE_FULL_NAME(pRSmalF), F_OK) == 0) {
+    if ((pCommith->isLFileSame) && taosCheckExistFile(TSDB_FILE_FULL_NAME(pRSmalF))) {
       tsdbInitDFileEx(pWSmalF, pRSmalF);
       if (tsdbOpenDFile(pWSmalF, O_RDWR) < 0) {
         tsdbError("vgId:%d failed to open file %s to commit since %s", REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pWSmalF),
diff --git a/source/dnode/vnode/src/tsdb/tsdbFS.c b/source/dnode/vnode/src/tsdb/tsdbFS.c
index dcc9700d83..411a166caa 100644
--- a/source/dnode/vnode/src/tsdb/tsdbFS.c
+++ b/source/dnode/vnode/src/tsdb/tsdbFS.c
@@ -314,7 +314,7 @@ int tsdbOpenFS(STsdb *pRepo) {
   tsdbGetTxnFname(pRepo, TSDB_TXN_CURR_FILE, current);
 
   tsdbGetRtnSnap(pRepo, &pRepo->rtn);
-  if (access(current, F_OK) == 0) {
+  if (taosCheckExistFile(current)) {
     if (tsdbOpenFSFromCurrent(pRepo) < 0) {
       tsdbError("vgId:%d failed to open FS since %s", REPO_ID(pRepo), tstrerror(terrno));
       return -1;
diff --git a/source/dnode/vnode/src/tsdb/tsdbFile.c b/source/dnode/vnode/src/tsdb/tsdbFile.c
index 4d70c429ff..74fb8c1c1f 100644
--- a/source/dnode/vnode/src/tsdb/tsdbFile.c
+++ b/source/dnode/vnode/src/tsdb/tsdbFile.c
@@ -443,25 +443,24 @@ int tsdbLoadDFileHeader(SDFile *pDFile, SDFInfo *pInfo) {
 }
 
 static int tsdbScanAndTryFixDFile(STsdb *pRepo, SDFile *pDFile) {
-  struct stat dfstat;
   SDFile      df;
 
   tsdbInitDFileEx(&df, pDFile);
 
-  if (access(TSDB_FILE_FULL_NAME(pDFile), F_OK) != 0) {
+  if (!taosCheckExistFile(TSDB_FILE_FULL_NAME(pDFile))) {
     tsdbError("vgId:%d data file %s not exit, report to upper layer to fix it", REPO_ID(pRepo),
               TSDB_FILE_FULL_NAME(pDFile));
     // pRepo->state |= TSDB_STATE_BAD_DATA;
     TSDB_FILE_SET_STATE(pDFile, TSDB_FILE_STATE_BAD);
     return 0;
   }
-
-  if (stat(TSDB_FILE_FULL_NAME(&df), &dfstat) < 0) {
+  int64_t file_size = 0;
+  if (taosStatFile(TSDB_FILE_FULL_NAME(&df), &file_size, NULL) < 0) {
     terrno = TAOS_SYSTEM_ERROR(errno);
     return -1;
   }
 
-  if (pDFile->info.size < dfstat.st_size) {
+  if (pDFile->info.size < file_size) {
     // if (tsdbOpenDFile(&df, O_WRONLY) < 0) {
     if (tsdbOpenDFile(&df, TD_FILE_WRITE) < 0) {
       return -1;
@@ -480,10 +479,10 @@ static int tsdbScanAndTryFixDFile(STsdb *pRepo, SDFile *pDFile) {
 
     tsdbCloseDFile(&df);
     tsdbInfo("vgId:%d file %s is truncated from %" PRId64 " to %" PRId64, REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pDFile),
-             dfstat.st_size, pDFile->info.size);
-  } else if (pDFile->info.size > dfstat.st_size) {
+             file_size, pDFile->info.size);
+  } else if (pDFile->info.size > file_size) {
     tsdbError("vgId:%d data file %s has wrong size %" PRId64 " expected %" PRId64 ", report to upper layer to fix it",
-              REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pDFile), dfstat.st_size, pDFile->info.size);
+              REPO_ID(pRepo), TSDB_FILE_FULL_NAME(pDFile), file_size, pDFile->info.size);
     // pRepo->state |= TSDB_STATE_BAD_DATA;
     TSDB_FILE_SET_STATE(pDFile, TSDB_FILE_STATE_BAD);
     terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
diff --git a/source/libs/CMakeLists.txt b/source/libs/CMakeLists.txt
index 78625d1eed..d766f3cbf1 100644
--- a/source/libs/CMakeLists.txt
+++ b/source/libs/CMakeLists.txt
@@ -1,4 +1,3 @@
-add_definitions("-D ALLOW_FORBID_FUNC")
 add_subdirectory(transport)
 add_subdirectory(sync)
 add_subdirectory(tdb)
diff --git a/source/libs/catalog/test/catalogTests.cpp b/source/libs/catalog/test/catalogTests.cpp
index b417a645be..b05fc7812a 100644
--- a/source/libs/catalog/test/catalogTests.cpp
+++ b/source/libs/catalog/test/catalogTests.cpp
@@ -14,9 +14,7 @@
  */
 
 #include <gtest/gtest.h>
-#include <tglobal.h>
 #include <iostream>
-#include "os.h"
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wwrite-strings"
@@ -24,8 +22,10 @@
 #pragma GCC diagnostic ignored "-Wunused-variable"
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #pragma GCC diagnostic ignored "-Wformat"
+#include <addr_any.h>
 
-#include "addr_any.h"
+#include "os.h"
+#include "tglobal.h"
 #include "catalog.h"
 #include "stub.h"
 #include "taos.h"
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index c400ded1c1..d449d7fac4 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -2215,10 +2215,10 @@ static void destroyTsComp(STaskRuntimeEnv *pRuntimeEnv, STaskAttr *pQueryAttr) {
   if (pQueryAttr->tsCompQuery && pRuntimeEnv->outputBuf && pRuntimeEnv->outputBuf->pDataBlock && taosArrayGetSize(pRuntimeEnv->outputBuf->pDataBlock) > 0) {
     SColumnInfoData* pColInfoData = taosArrayGet(pRuntimeEnv->outputBuf->pDataBlock, 0);
     if (pColInfoData) {
-      FILE *f = *(FILE **)pColInfoData->pData;  // TODO refactor
-      if (f) {
-        fclose(f);
-        *(FILE **)pColInfoData->pData = NULL;
+      TdFilePtr pFile = *(TdFilePtr *)pColInfoData->pData;  // TODO refactor
+      if (pFile != NULL) {
+        taosCloseFile(&pFile);
+        *(TdFilePtr *)pColInfoData->pData = NULL;
       }
     }
   }
diff --git a/source/libs/executor/test/executorTests.cpp b/source/libs/executor/test/executorTests.cpp
index 262232ceb1..7d3665a8cc 100644
--- a/source/libs/executor/test/executorTests.cpp
+++ b/source/libs/executor/test/executorTests.cpp
@@ -13,10 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <executorimpl.h>
-#include <function.h>
 #include <gtest/gtest.h>
-#include <tglobal.h>
 #include <iostream>
 
 #pragma GCC diagnostic push
@@ -26,6 +23,9 @@
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #include "os.h"
 
+#include "tglobal.h"
+#include "executorimpl.h"
+#include "function.h"
 #include "taos.h"
 #include "tdef.h"
 #include "tvariant.h"
diff --git a/source/libs/executor/test/sortTests.cpp b/source/libs/executor/test/sortTests.cpp
index fc366e4cc8..612b0705ea 100644
--- a/source/libs/executor/test/sortTests.cpp
+++ b/source/libs/executor/test/sortTests.cpp
@@ -13,7 +13,6 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <executorimpl.h>
 #include <gtest/gtest.h>
 #include <tglobal.h>
 #include <tsort.h>
@@ -26,6 +25,7 @@
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #include "os.h"
 
+#include "executorimpl.h"
 #include "executor.h"
 #include "stub.h"
 #include "taos.h"
diff --git a/source/libs/index/src/index_fst_counting_writer.c b/source/libs/index/src/index_fst_counting_writer.c
index 16d9893778..8cb2ff9246 100644
--- a/source/libs/index/src/index_fst_counting_writer.c
+++ b/source/libs/index/src/index_fst_counting_writer.c
@@ -63,9 +63,9 @@ static int writeCtxDoReadFrom(WriterCtx* ctx, uint8_t* buf, int len, int32_t off
 }
 static int writeCtxGetSize(WriterCtx* ctx) {
   if (ctx->type == TFile) {
-    struct stat fstat;
-    stat(ctx->file.buf, &fstat);
-    return fstat.st_size;
+    int64_t file_size = 0;
+    taosStatFile(ctx->file.buf, &file_size, NULL);
+    return (int)file_size;
   }
   return 0;
 }
@@ -99,9 +99,9 @@ WriterCtx* writerCtxCreate(WriterType type, const char* path, bool readOnly, int
       // ctx->file.pFile = open(path, O_RDONLY, S_IRWXU | S_IRWXG | S_IRWXO);
       ctx->file.pFile = taosOpenFile(path, TD_FILE_READ);
 
-      struct stat fstat;
-      stat(path, &fstat);
-      ctx->file.size = fstat.st_size;
+      int64_t file_size = 0;
+      taosFStatFile(ctx->file.pFile, &file_size, NULL);
+      ctx->file.size = (int)file_size;
 #ifdef USE_MMAP
       ctx->file.ptr = (char*)tfMmapReadOnly(ctx->file.pFile, ctx->file.size);
 #endif
@@ -142,8 +142,10 @@ void writerCtxDestroy(WriterCtx* ctx, bool remove) {
 #endif
     }
     if (ctx->file.readOnly == false) {
-      struct stat fstat;
-      stat(ctx->file.buf, &fstat);
+      int64_t file_size = 0;
+      taosStatFile(ctx->file.buf, &file_size, NULL);
+      // struct stat fstat;
+      // stat(ctx->file.buf, &fstat);
       // indexError("write file size: %d", (int)(fstat.st_size));
     }
     if (remove) { unlink(ctx->file.buf); }
diff --git a/source/libs/parser/test/mockCatalog.cpp b/source/libs/parser/test/mockCatalog.cpp
index 457d586ea4..e626fc68ae 100644
--- a/source/libs/parser/test/mockCatalog.cpp
+++ b/source/libs/parser/test/mockCatalog.cpp
@@ -13,19 +13,17 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "mockCatalog.h"
-
 #include <iostream>
-
 #include "stub.h"
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wformat"
 
-#include "addr_any.h"
+#include <addr_any.h>
 
 #pragma GCC diagnostic pop
 
+#include "mockCatalog.h"
 namespace {
 
 void generateTestT1(MockCatalogService* mcs) {
diff --git a/source/libs/parser/test/parserTests.cpp b/source/libs/parser/test/parserTests.cpp
index b971760132..b80efe09ed 100644
--- a/source/libs/parser/test/parserTests.cpp
+++ b/source/libs/parser/test/parserTests.cpp
@@ -13,10 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <function.h>
 #include <gtest/gtest.h>
 #include <iostream>
-#include "tglobal.h"
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wwrite-strings"
@@ -25,6 +23,8 @@
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #include "os.h"
 
+#include "function.h"
+#include "tglobal.h"
 #include "astGenerator.h"
 #include "parserInt.h"
 #include "taos.h"
diff --git a/source/libs/parser/test/plannerTest.cpp b/source/libs/parser/test/plannerTest.cpp
index 43daff9fec..095e2f4f97 100644
--- a/source/libs/parser/test/plannerTest.cpp
+++ b/source/libs/parser/test/plannerTest.cpp
@@ -13,7 +13,6 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <function.h>
 #include <gtest/gtest.h>
 #include <tglobal.h>
 #include <iostream>
@@ -25,6 +24,7 @@
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #include "os.h"
 
+#include "function.h"
 #include "astGenerator.h"
 #include "parserInt.h"
 #include "taos.h"
diff --git a/source/libs/qworker/test/qworkerTests.cpp b/source/libs/qworker/test/qworkerTests.cpp
index 8ad5a76388..94d4260696 100644
--- a/source/libs/qworker/test/qworkerTests.cpp
+++ b/source/libs/qworker/test/qworkerTests.cpp
@@ -14,7 +14,6 @@
  */
 
 #include <gtest/gtest.h>
-#include <tglobal.h>
 #include <iostream>
 
 #pragma GCC diagnostic push
@@ -26,9 +25,11 @@
 #pragma GCC diagnostic ignored "-Wformat"
 #pragma GCC diagnostic ignored "-Wint-to-pointer-cast"
 #pragma GCC diagnostic ignored "-Wpointer-arith"
+#include <addr_any.h>
 
 #include "os.h"
 
+#include "tglobal.h"
 #include "taos.h"
 #include "tdef.h"
 #include "tvariant.h"
@@ -37,7 +38,6 @@
 #include "planner.h"
 #include "qworker.h"
 #include "stub.h"
-#include "addr_any.h"
 #include "executor.h"
 #include "dataSinkMgt.h"
 
diff --git a/source/libs/scalar/test/filter/filterTests.cpp b/source/libs/scalar/test/filter/filterTests.cpp
index fafc1ea42e..13829618a2 100644
--- a/source/libs/scalar/test/filter/filterTests.cpp
+++ b/source/libs/scalar/test/filter/filterTests.cpp
@@ -14,7 +14,6 @@
  */
 
 #include <gtest/gtest.h>
-#include <tglobal.h>
 #include <iostream>
 
 #pragma GCC diagnostic push
@@ -26,15 +25,16 @@
 #pragma GCC diagnostic ignored "-Wformat"
 #pragma GCC diagnostic ignored "-Wint-to-pointer-cast"
 #pragma GCC diagnostic ignored "-Wpointer-arith"
+#include <addr_any.h>
 
 #include "os.h"
 
+#include "tglobal.h"
 #include "taos.h"
 #include "tdef.h"
 #include "tvariant.h"
 #include "tep.h"
 #include "stub.h"
-#include "addr_any.h"
 #include "scalar.h"
 #include "nodes.h"
 #include "tlog.h"
diff --git a/source/libs/scalar/test/scalar/scalarTests.cpp b/source/libs/scalar/test/scalar/scalarTests.cpp
index b9aef99088..8eef1836a5 100644
--- a/source/libs/scalar/test/scalar/scalarTests.cpp
+++ b/source/libs/scalar/test/scalar/scalarTests.cpp
@@ -14,7 +14,6 @@
  */
 
 #include <gtest/gtest.h>
-#include <tglobal.h>
 #include <iostream>
 
 #pragma GCC diagnostic push
@@ -26,15 +25,16 @@
 #pragma GCC diagnostic ignored "-Wformat"
 #pragma GCC diagnostic ignored "-Wint-to-pointer-cast"
 #pragma GCC diagnostic ignored "-Wpointer-arith"
+#include <addr_any.h>
 
 #include "os.h"
 
+#include "tglobal.h"
 #include "taos.h"
 #include "tdef.h"
 #include "tvariant.h"
 #include "tep.h"
 #include "stub.h"
-#include "addr_any.h"
 #include "scalar.h"
 #include "nodes.h"
 #include "tlog.h"
diff --git a/source/libs/scheduler/test/schedulerTests.cpp b/source/libs/scheduler/test/schedulerTests.cpp
index 11ed3335e6..1a34c20ba0 100644
--- a/source/libs/scheduler/test/schedulerTests.cpp
+++ b/source/libs/scheduler/test/schedulerTests.cpp
@@ -14,19 +14,8 @@
  */
 
 #include <gtest/gtest.h>
-#include <tglobal.h>
 #include <iostream>
 
-#include "os.h"
-
-#include "taos.h"
-#include "tdef.h"
-#include "tvariant.h"
-#include "catalog.h"
-#include "scheduler.h"
-#include "tep.h"
-#include "trpc.h"
-
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wwrite-strings"
 #pragma GCC diagnostic ignored "-Wunused-function"
@@ -34,10 +23,21 @@
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #pragma GCC diagnostic ignored "-Wreturn-type"
 #pragma GCC diagnostic ignored "-Wformat"
+#include <addr_any.h>
 
+
+#include "os.h"
+
+#include "tglobal.h"
+#include "taos.h"
+#include "tdef.h"
+#include "tvariant.h"
+#include "catalog.h"
+#include "scheduler.h"
+#include "tep.h"
+#include "trpc.h"
 #include "schedulerInt.h"
 #include "stub.h"
-#include "addr_any.h"
 #include "tref.h"
 
 namespace {
diff --git a/source/libs/sync/test/syncIOSendMsgClientTest.cpp b/source/libs/sync/test/syncIOSendMsgClientTest.cpp
index 9e8c7c8b65..0d06c4f811 100644
--- a/source/libs/sync/test/syncIOSendMsgClientTest.cpp
+++ b/source/libs/sync/test/syncIOSendMsgClientTest.cpp
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #include "syncIO.h"
 #include "syncInt.h"
 #include "syncRaftStore.h"
diff --git a/source/libs/sync/test/syncIOSendMsgServerTest.cpp b/source/libs/sync/test/syncIOSendMsgServerTest.cpp
index 8af9344ed6..1582e097d3 100644
--- a/source/libs/sync/test/syncIOSendMsgServerTest.cpp
+++ b/source/libs/sync/test/syncIOSendMsgServerTest.cpp
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #include "syncIO.h"
 #include "syncInt.h"
 #include "syncRaftStore.h"
diff --git a/source/libs/sync/test/syncIOSendMsgTest.cpp b/source/libs/sync/test/syncIOSendMsgTest.cpp
index a297981ee5..9b2cfcf1d8 100644
--- a/source/libs/sync/test/syncIOSendMsgTest.cpp
+++ b/source/libs/sync/test/syncIOSendMsgTest.cpp
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #include "syncIO.h"
 #include "syncInt.h"
 #include "syncRaftStore.h"
diff --git a/source/libs/sync/test/syncIOTickPingTest.cpp b/source/libs/sync/test/syncIOTickPingTest.cpp
index 1559b57585..42b9a73432 100644
--- a/source/libs/sync/test/syncIOTickPingTest.cpp
+++ b/source/libs/sync/test/syncIOTickPingTest.cpp
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #include "syncIO.h"
 #include "syncInt.h"
 #include "syncRaftStore.h"
diff --git a/source/libs/sync/test/syncIOTickQTest.cpp b/source/libs/sync/test/syncIOTickQTest.cpp
index 90304079e3..3d31c596bf 100644
--- a/source/libs/sync/test/syncIOTickQTest.cpp
+++ b/source/libs/sync/test/syncIOTickQTest.cpp
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #include "syncIO.h"
 #include "syncInt.h"
 #include "syncRaftStore.h"
diff --git a/source/libs/sync/test/syncRaftStoreTest.cpp b/source/libs/sync/test/syncRaftStoreTest.cpp
index e533b89a92..9cfbe5a4ea 100644
--- a/source/libs/sync/test/syncRaftStoreTest.cpp
+++ b/source/libs/sync/test/syncRaftStoreTest.cpp
@@ -1,6 +1,6 @@
-#include "syncRaftStore.h"
 #include <stdio.h>
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
+#include "syncRaftStore.h"
 #include "syncIO.h"
 #include "syncInt.h"
 
diff --git a/source/libs/sync/test/syncTest.cpp b/source/libs/sync/test/syncTest.cpp
index 0b397ef921..c1c5658aba 100644
--- a/source/libs/sync/test/syncTest.cpp
+++ b/source/libs/sync/test/syncTest.cpp
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 #include "syncIO.h"
 #include "syncInt.h"
 #include "syncRaftStore.h"
diff --git a/source/libs/tdb/src/db/tdb.c b/source/libs/tdb/src/db/tdb.c
index cc3b7fa6b9..65d4cf80cc 100644
--- a/source/libs/tdb/src/db/tdb.c
+++ b/source/libs/tdb/src/db/tdb.c
@@ -90,7 +90,7 @@ int tdbOpen(TDB *pDb, const char *fname, const char *dbname, TENV *pEnv) {
   // get page file from the env, if not opened yet, open it
   pPgFile = NULL;
   snprintf(dbfname, 128, "%s/%s", tdbEnvGetRootDir(pEnv), fname);
-  fileExist = (tdbCheckFileAccess(fname, TDB_F_OK) == 0);
+  fileExist = taosCheckExistFile(fname);
   if (fileExist) {
     tdbGnrtFileID(dbfname, fileid, false);
     pPgFile = tdbEnvGetPageFile(pEnv, fileid);
diff --git a/source/libs/tdb/src/db/tdbUtil.c b/source/libs/tdb/src/db/tdbUtil.c
index fa9a3297da..fe0f3befd6 100644
--- a/source/libs/tdb/src/db/tdbUtil.c
+++ b/source/libs/tdb/src/db/tdbUtil.c
@@ -16,16 +16,16 @@
 #include "tdbInt.h"
 
 int tdbGnrtFileID(const char *fname, uint8_t *fileid, bool unique) {
-  struct stat statbuf;
+  int64_t stDev = 0, stIno = 0;
 
-  if (stat(fname, &statbuf) < 0) {
+  if (taosDevInoFile(fname, &stDev, &stIno) < 0) {
     return -1;
   }
 
   memset(fileid, 0, TDB_FILE_ID_LEN);
 
-  ((uint64_t *)fileid)[0] = (uint64_t)statbuf.st_ino;
-  ((uint64_t *)fileid)[1] = (uint64_t)statbuf.st_dev;
+  ((uint64_t *)fileid)[0] = stDev;
+  ((uint64_t *)fileid)[1] = stIno;
   if (unique) {
     ((uint64_t *)fileid)[2] = rand();
   }
@@ -33,35 +33,34 @@ int tdbGnrtFileID(const char *fname, uint8_t *fileid, bool unique) {
   return 0;
 }
 
-int tdbCheckFileAccess(const char *pathname, int mode) {
-  int flags = 0;
+// int tdbCheckFileAccess(const char *pathname, int mode) {
+//   int flags = 0;
 
-  if (mode & TDB_F_OK) {
-    flags |= F_OK;
-  }
+//   if (mode & TDB_F_OK) {
+//     flags |= F_OK;
+//   }
 
-  if (mode & TDB_R_OK) {
-    flags |= R_OK;
-  }
+//   if (mode & TDB_R_OK) {
+//     flags |= R_OK;
+//   }
 
-  if (mode & TDB_W_OK) {
-    flags |= W_OK;
-  }
+//   if (mode & TDB_W_OK) {
+//     flags |= W_OK;
+//   }
 
-  return access(pathname, flags);
-}
+//   return access(pathname, flags);
+// }
 
 int tdbGetFileSize(const char *fname, pgsz_t pgSize, pgno_t *pSize) {
-  struct stat st;
   int         ret;
-
-  ret = stat(fname, &st);
+  int64_t file_size = 0;
+  ret = taosStatFile(fname, &file_size, NULL);
   if (ret != 0) {
     return -1;
   }
 
-  ASSERT(st.st_size % pgSize == 0);
+  ASSERT(file_size % pgSize == 0);
 
-  *pSize = st.st_size / pgSize;
+  *pSize = file_size / pgSize;
   return 0;
 }
\ No newline at end of file
diff --git a/source/libs/tdb/src/inc/tdbUtil.h b/source/libs/tdb/src/inc/tdbUtil.h
index 8108e5aba6..ca05790f77 100644
--- a/source/libs/tdb/src/inc/tdbUtil.h
+++ b/source/libs/tdb/src/inc/tdbUtil.h
@@ -30,10 +30,10 @@ extern "C" {
 
 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);
+// #define TDB_F_OK 0x1
+// #define TDB_R_OK 0x2
+// #define TDB_W_OK 0x4
+// int tdbCheckFileAccess(const char *pathname, int mode);
 
 int tdbGetFileSize(const char *fname, pgsz_t pgSize, pgno_t *pSize);
 
diff --git a/source/libs/tdb/test/tdbTest.cpp b/source/libs/tdb/test/tdbTest.cpp
index 5ab0b4c0f1..ad550c7804 100644
--- a/source/libs/tdb/test/tdbTest.cpp
+++ b/source/libs/tdb/test/tdbTest.cpp
@@ -1,4 +1,4 @@
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 
 #include "tdb.h"
 
diff --git a/source/libs/tfs/src/tfs.c b/source/libs/tfs/src/tfs.c
index 944e67c863..26fa90bdef 100644
--- a/source/libs/tfs/src/tfs.c
+++ b/source/libs/tfs/src/tfs.c
@@ -389,7 +389,6 @@ static int32_t tfsMount(STfs *pTfs, SDiskCfg *pCfg) {
 
 static int32_t tfsCheckAndFormatCfg(STfs *pTfs, SDiskCfg *pCfg) {
   char        dirName[TSDB_FILENAME_LEN] = "\0";
-  struct stat pstat;
 
   if (pCfg->level < 0 || pCfg->level >= TFS_MAX_TIERS) {
     fError("failed to mount %s to FS since invalid level %d", pCfg->dir, pCfg->level);
@@ -422,19 +421,13 @@ static int32_t tfsCheckAndFormatCfg(STfs *pTfs, SDiskCfg *pCfg) {
     return -1;
   }
 
-  if (access(dirName, W_OK | R_OK | F_OK) != 0) {
+  if (!taosCheckAccessFile(dirName, TD_FILE_ACCESS_EXIST_OK | TD_FILE_ACCESS_READ_OK | TD_FILE_ACCESS_WRITE_OK)) {
     fError("failed to mount %s to FS since no R/W access rights", pCfg->dir);
     terrno = TSDB_CODE_FS_INVLD_CFG;
     return -1;
   }
 
-  if (stat(dirName, &pstat) < 0) {
-    fError("failed to mount %s to FS since %s", pCfg->dir, strerror(errno));
-    terrno = TAOS_SYSTEM_ERROR(errno);
-    return -1;
-  }
-
-  if (!S_ISDIR(pstat.st_mode)) {
+  if (!taosIsDir(dirName)) {
     fError("failed to mount %s to FS since not a directory", pCfg->dir);
     terrno = TSDB_CODE_FS_INVLD_CFG;
     return -1;
diff --git a/source/libs/tfs/test/tfsTest.cpp b/source/libs/tfs/test/tfsTest.cpp
index af66304f84..9cb914a670 100644
--- a/source/libs/tfs/test/tfsTest.cpp
+++ b/source/libs/tfs/test/tfsTest.cpp
@@ -119,29 +119,29 @@ TEST_F(TfsTest, 03_Dir) {
   char p1[] = "p1";
   char ap1[128] = {0};
   snprintf(ap1, 128, "%s%s%s", root, TD_DIRSEP, p1);
-  EXPECT_NE(taosDirExist(ap1), 0);
+  EXPECT_NE(taosDirExist(ap1), 1);
   EXPECT_EQ(tfsMkdir(pTfs, p1), 0);
-  EXPECT_EQ(taosDirExist(ap1), 0);
+  EXPECT_EQ(taosDirExist(ap1), 1);
 
   char p2[] = "p2";
   char ap2[128] = {0};
   snprintf(ap2, 128, "%s%s%s", root, TD_DIRSEP, p2);
   SDiskID did = {0};
-  EXPECT_NE(taosDirExist(ap2), 0);
+  EXPECT_NE(taosDirExist(ap2), 1);
   EXPECT_EQ(tfsMkdirAt(pTfs, p2, did), 0);
-  EXPECT_EQ(taosDirExist(ap2), 0);
+  EXPECT_EQ(taosDirExist(ap2), 1);
 
   char p3[] = "p3/p2/p1/p0";
   char ap3[128] = {0};
   snprintf(ap3, 128, "%s%s%s", root, TD_DIRSEP, p3);
-  EXPECT_NE(taosDirExist(ap3), 0);
+  EXPECT_NE(taosDirExist(ap3), 1);
   EXPECT_NE(tfsMkdir(pTfs, p3), 0);
   EXPECT_NE(tfsMkdirAt(pTfs, p3, did), 0);
   EXPECT_EQ(tfsMkdirRecurAt(pTfs, p3, did), 0);
-  EXPECT_EQ(taosDirExist(ap3), 0);
+  EXPECT_EQ(taosDirExist(ap3), 1);
 
   EXPECT_EQ(tfsRmdir(pTfs, p3), 0);
-  EXPECT_NE(taosDirExist(ap3), 0);
+  EXPECT_NE(taosDirExist(ap3), 1);
 
   char p45[] = "p5";
   char p44[] = "p4";
@@ -149,12 +149,12 @@ TEST_F(TfsTest, 03_Dir) {
   char ap4[128] = {0};
   snprintf(ap4, 128, "%s%s%s", root, TD_DIRSEP, p4);
 
-  EXPECT_NE(taosDirExist(ap4), 0);
+  EXPECT_NE(taosDirExist(ap4), 1);
   EXPECT_EQ(tfsMkdirRecurAt(pTfs, p4, did), 0);
-  EXPECT_EQ(taosDirExist(ap4), 0);
+  EXPECT_EQ(taosDirExist(ap4), 1);
   EXPECT_EQ(tfsRename(pTfs, p44, p45), 0);
   EXPECT_EQ(tfsRmdir(pTfs, p4), 0);
-  EXPECT_NE(taosDirExist(ap4), 0);
+  EXPECT_NE(taosDirExist(ap4), 1);
 
   tfsClose(pTfs);
 }
@@ -251,9 +251,9 @@ TEST_F(TfsTest, 04_File) {
 
     char af2[128] = {0};
     snprintf(af2, 128, "%s%s%s", root, TD_DIRSEP, n2);
-    EXPECT_EQ(taosDirExist(af2), 0);
+    EXPECT_EQ(taosDirExist(af2), 1);
     tfsRemoveFile(&f2);
-    EXPECT_NE(taosDirExist(af2), 0);
+    EXPECT_NE(taosDirExist(af2), 1);
 
     {
       STfsDir *pDir = tfsOpendir(pTfs, "t3");
@@ -529,35 +529,35 @@ TEST_F(TfsTest, 05_MultiDisk) {
     snprintf(ap22, 128, "%s%s%s", root22, TD_DIRSEP, p1);
     char ap23[128] = {0};
     snprintf(ap23, 128, "%s%s%s", root23, TD_DIRSEP, p1);
-    EXPECT_NE(taosDirExist(ap00), 0);
-    EXPECT_NE(taosDirExist(ap01), 0);
-    EXPECT_NE(taosDirExist(ap10), 0);
-    EXPECT_NE(taosDirExist(ap11), 0);
-    EXPECT_NE(taosDirExist(ap12), 0);
-    EXPECT_NE(taosDirExist(ap20), 0);
-    EXPECT_NE(taosDirExist(ap21), 0);
-    EXPECT_NE(taosDirExist(ap22), 0);
-    EXPECT_NE(taosDirExist(ap23), 0);
+    EXPECT_NE(taosDirExist(ap00), 1);
+    EXPECT_NE(taosDirExist(ap01), 1);
+    EXPECT_NE(taosDirExist(ap10), 1);
+    EXPECT_NE(taosDirExist(ap11), 1);
+    EXPECT_NE(taosDirExist(ap12), 1);
+    EXPECT_NE(taosDirExist(ap20), 1);
+    EXPECT_NE(taosDirExist(ap21), 1);
+    EXPECT_NE(taosDirExist(ap22), 1);
+    EXPECT_NE(taosDirExist(ap23), 1);
     EXPECT_EQ(tfsMkdir(pTfs, p1), 0);
-    EXPECT_EQ(taosDirExist(ap00), 0);
-    EXPECT_EQ(taosDirExist(ap01), 0);
-    EXPECT_EQ(taosDirExist(ap10), 0);
-    EXPECT_EQ(taosDirExist(ap11), 0);
-    EXPECT_EQ(taosDirExist(ap12), 0);
-    EXPECT_EQ(taosDirExist(ap20), 0);
-    EXPECT_EQ(taosDirExist(ap21), 0);
-    EXPECT_EQ(taosDirExist(ap22), 0);
-    EXPECT_EQ(taosDirExist(ap23), 0);
+    EXPECT_EQ(taosDirExist(ap00), 1);
+    EXPECT_EQ(taosDirExist(ap01), 1);
+    EXPECT_EQ(taosDirExist(ap10), 1);
+    EXPECT_EQ(taosDirExist(ap11), 1);
+    EXPECT_EQ(taosDirExist(ap12), 1);
+    EXPECT_EQ(taosDirExist(ap20), 1);
+    EXPECT_EQ(taosDirExist(ap21), 1);
+    EXPECT_EQ(taosDirExist(ap22), 1);
+    EXPECT_EQ(taosDirExist(ap23), 1);
     EXPECT_EQ(tfsRmdir(pTfs, p1), 0);
-    EXPECT_NE(taosDirExist(ap00), 0);
-    EXPECT_NE(taosDirExist(ap01), 0);
-    EXPECT_NE(taosDirExist(ap10), 0);
-    EXPECT_NE(taosDirExist(ap11), 0);
-    EXPECT_NE(taosDirExist(ap12), 0);
-    EXPECT_NE(taosDirExist(ap20), 0);
-    EXPECT_NE(taosDirExist(ap21), 0);
-    EXPECT_NE(taosDirExist(ap22), 0);
-    EXPECT_NE(taosDirExist(ap23), 0);
+    EXPECT_NE(taosDirExist(ap00), 1);
+    EXPECT_NE(taosDirExist(ap01), 1);
+    EXPECT_NE(taosDirExist(ap10), 1);
+    EXPECT_NE(taosDirExist(ap11), 1);
+    EXPECT_NE(taosDirExist(ap12), 1);
+    EXPECT_NE(taosDirExist(ap20), 1);
+    EXPECT_NE(taosDirExist(ap21), 1);
+    EXPECT_NE(taosDirExist(ap22), 1);
+    EXPECT_NE(taosDirExist(ap23), 1);
 
     char p2[] = "p2";
     char _ap21[128] = {0};
@@ -565,22 +565,22 @@ TEST_F(TfsTest, 05_MultiDisk) {
     SDiskID did = {0};
     did.level = 2;
     did.id = 1;
-    EXPECT_NE(taosDirExist(_ap21), 0);
+    EXPECT_NE(taosDirExist(_ap21), 1);
     EXPECT_EQ(tfsMkdirAt(pTfs, p2, did), 0);
-    EXPECT_EQ(taosDirExist(_ap21), 0);
+    EXPECT_EQ(taosDirExist(_ap21), 1);
 
     char p3[] = "p3/p2/p1/p0";
     char _ap12[128] = {0};
     snprintf(_ap12, 128, "%s%s%s", root12, TD_DIRSEP, p3);
     did.level = 1;
     did.id = 2;
-    EXPECT_NE(taosDirExist(_ap12), 0);
+    EXPECT_NE(taosDirExist(_ap12), 1);
     EXPECT_NE(tfsMkdir(pTfs, p3), 0);
     EXPECT_NE(tfsMkdirAt(pTfs, p3, did), 0);
     EXPECT_EQ(tfsMkdirRecurAt(pTfs, p3, did), 0);
-    EXPECT_EQ(taosDirExist(_ap12), 0);
+    EXPECT_EQ(taosDirExist(_ap12), 1);
     EXPECT_EQ(tfsRmdir(pTfs, p3), 0);
-    EXPECT_NE(taosDirExist(_ap12), 0);
+    EXPECT_NE(taosDirExist(_ap12), 1);
 
     char p45[] = "p5";
     char p44[] = "p4";
@@ -590,12 +590,12 @@ TEST_F(TfsTest, 05_MultiDisk) {
     did.level = 2;
     did.id = 2;
 
-    EXPECT_NE(taosDirExist(_ap22), 0);
+    EXPECT_NE(taosDirExist(_ap22), 1);
     EXPECT_EQ(tfsMkdirRecurAt(pTfs, p4, did), 0);
-    EXPECT_EQ(taosDirExist(_ap22), 0);
+    EXPECT_EQ(taosDirExist(_ap22), 1);
     EXPECT_EQ(tfsRename(pTfs, p44, p45), 0);
     EXPECT_EQ(tfsRmdir(pTfs, p4), 0);
-    EXPECT_NE(taosDirExist(_ap22), 0);
+    EXPECT_NE(taosDirExist(_ap22), 1);
   }
 
   //------------- File -----------------//
@@ -660,7 +660,7 @@ TEST_F(TfsTest, 05_MultiDisk) {
 
       char af2[128] = {0};
       snprintf(af2, 128, "%s%s%s", root23, TD_DIRSEP, n2);
-      EXPECT_EQ(taosDirExist(af2), 0);
+      EXPECT_EQ(taosDirExist(af2), 1);
       tfsRemoveFile(&f2);
 
       {
@@ -678,7 +678,7 @@ TEST_F(TfsTest, 05_MultiDisk) {
         tfsClosedir(pDir);
       }
 
-      EXPECT_NE(taosDirExist(af2), 0);
+      EXPECT_NE(taosDirExist(af2), 1);
       EXPECT_GT(tfsCopyFile(&f1, &f2), 0);
 
       {
diff --git a/source/libs/wal/src/walMeta.c b/source/libs/wal/src/walMeta.c
index ae0b0bd849..e64260c541 100644
--- a/source/libs/wal/src/walMeta.c
+++ b/source/libs/wal/src/walMeta.c
@@ -64,10 +64,10 @@ static inline int64_t walScanLogGetLastVer(SWal* pWal) {
   char fnameStr[WAL_FILE_LEN];
   walBuildLogName(pWal, pLastFileInfo->firstVer, fnameStr);
 
-  struct stat statbuf;
-  stat(fnameStr, &statbuf);
-  int readSize = TMIN(WAL_MAX_SIZE + 2, statbuf.st_size);
-  pLastFileInfo->fileSize = statbuf.st_size;
+  int64_t file_size = 0;
+  taosStatFile(fnameStr, &file_size, NULL);
+  int readSize = TMIN(WAL_MAX_SIZE + 2, file_size);
+  pLastFileInfo->fileSize = file_size;
 
   TdFilePtr pFile = taosOpenFile(fnameStr, TD_FILE_READ);
   if (pFile == NULL) {
@@ -177,11 +177,11 @@ int walCheckAndRepairMeta(SWal* pWal) {
     SWalFileInfo *pLastFileInfo = taosArrayGet(pWal->fileInfoSet, newSz-1);
     char fnameStr[WAL_FILE_LEN];
     walBuildLogName(pWal, pLastFileInfo->firstVer, fnameStr);
-    struct stat statbuf;
-    stat(fnameStr, &statbuf);
+    int64_t file_size = 0;
+    taosStatFile(fnameStr, &file_size, NULL);
 
-    if (oldSz != newSz || pLastFileInfo->fileSize != statbuf.st_size) {
-      pLastFileInfo->fileSize = statbuf.st_size;
+    if (oldSz != newSz || pLastFileInfo->fileSize != file_size) {
+      pLastFileInfo->fileSize = file_size;
       pWal->vers.lastVer = walScanLogGetLastVer(pWal);
       ((SWalFileInfo*)taosArrayGetLast(pWal->fileInfoSet))->lastVer = pWal->vers.lastVer;
       ASSERT(pWal->vers.lastVer != -1);
@@ -395,9 +395,9 @@ int walLoadMeta(SWal* pWal) {
   char fnameStr[WAL_FILE_LEN];
   walBuildMetaName(pWal, metaVer, fnameStr);
   // read metafile
-  struct stat statbuf;
-  stat(fnameStr, &statbuf);
-  int   size = statbuf.st_size;
+  int64_t file_size = 0;
+  taosStatFile(fnameStr, &file_size, NULL);
+  int   size = (int)file_size;
   char* buf = malloc(size + 5);
   if (buf == NULL) {
     terrno = TSDB_CODE_WAL_OUT_OF_MEMORY;
diff --git a/source/os/src/osDir.c b/source/os/src/osDir.c
index 91ef97e66b..e0f5f80dab 100644
--- a/source/os/src/osDir.c
+++ b/source/os/src/osDir.c
@@ -60,7 +60,7 @@ void taosRemoveDir(const char *dirname) {
   //printf("dir:%s is removed\n", dirname);
 }
 
-int32_t taosDirExist(char *dirname) { return access(dirname, F_OK); }
+bool taosDirExist(char *dirname) { return taosCheckExistFile(dirname); }
 
 int32_t taosMkDir(const char *dirname) {
   int32_t code = mkdir(dirname, 0755);
diff --git a/source/os/src/osFile.c b/source/os/src/osFile.c
index c2e9b52f88..37004e9d70 100644
--- a/source/os/src/osFile.c
+++ b/source/os/src/osFile.c
@@ -186,6 +186,27 @@ int32_t taosStatFile(const char *path, int64_t *size, int32_t *mtime) {
   return 0;
 #endif
 }
+int32_t taosDevInoFile(const char *path, int64_t *stDev, int64_t *stIno) {
+#if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
+  return 0;
+#else
+  struct stat fileStat;
+  int32_t code = stat(path, &fileStat);
+  if (code < 0) {
+    return code;
+  }
+
+  if (stDev != NULL) {
+    *stDev = fileStat.st_dev;
+  }
+
+  if (stIno != NULL) {
+    *stIno = fileStat.st_ino;
+  }
+
+  return 0;
+#endif
+}
 
 void autoDelFileListAdd(const char *path) { return; }
 
@@ -733,3 +754,21 @@ int32_t taosEOFFile(TdFilePtr pFile) {
 
   return feof(pFile->fp);
 }
+bool taosCheckAccessFile(const char *pathname, int32_t tdFileAccessOptions) {
+  int flags = 0;
+
+  if (tdFileAccessOptions & TD_FILE_ACCESS_EXIST_OK) {
+    flags |= F_OK;
+  }
+
+  if (tdFileAccessOptions & TD_FILE_ACCESS_READ_OK) {
+    flags |= R_OK;
+  }
+
+  if (tdFileAccessOptions & TD_FILE_ACCESS_WRITE_OK) {
+    flags |= W_OK;
+  }
+
+  return access(pathname, flags) == 0;
+}
+bool taosCheckExistFile(const char *pathname) { return taosCheckAccessFile(pathname, TD_FILE_ACCESS_EXIST_OK); };
\ No newline at end of file
diff --git a/source/util/test/cacheTest.cpp b/source/util/test/cacheTest.cpp
index 970f1c23a9..4dde374bdd 100644
--- a/source/util/test/cacheTest.cpp
+++ b/source/util/test/cacheTest.cpp
@@ -1,7 +1,7 @@
-#include "os.h"
 #include <iostream>
 #include <gtest/gtest.h>
 
+#include "os.h"
 #include "taos.h"
 #include "tcache.h"
 
diff --git a/source/util/test/encodeTest.cpp b/source/util/test/encodeTest.cpp
index 5505a6207f..7b993ebf35 100644
--- a/source/util/test/encodeTest.cpp
+++ b/source/util/test/encodeTest.cpp
@@ -1,6 +1,6 @@
 #include <iostream>
 
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 
 #include "tencode.h"
 
diff --git a/source/util/test/freelistTest.cpp b/source/util/test/freelistTest.cpp
index cf11d6b5bf..7fd3d693fb 100644
--- a/source/util/test/freelistTest.cpp
+++ b/source/util/test/freelistTest.cpp
@@ -1,4 +1,4 @@
-#include "gtest/gtest.h"
+#include <gtest/gtest.h>
 
 #include "tfreelist.h"
 
diff --git a/source/util/test/hashTest.cpp b/source/util/test/hashTest.cpp
index ac1bae2434..4c6ee8d10c 100644
--- a/source/util/test/hashTest.cpp
+++ b/source/util/test/hashTest.cpp
@@ -1,9 +1,9 @@
-#include "os.h"
 #include <gtest/gtest.h>
 #include <limits.h>
-#include <taosdef.h>
 #include <iostream>
 
+#include "os.h"
+#include "taosdef.h"
 #include "thash.h"
 #include "taos.h"
 
diff --git a/tools/shell/src/backup/shellImport.c b/tools/shell/src/backup/shellImport.c
index c0ab7ef461..36489a448b 100644
--- a/tools/shell/src/backup/shellImport.c
+++ b/tools/shell/src/backup/shellImport.c
@@ -93,8 +93,7 @@ static void shellCheckTablesSQLFile(const char *directoryName)
 {
   sprintf(shellTablesSQLFile, "%s/tables.sql", directoryName);
 
-  struct stat fstat;
-  if (stat(shellTablesSQLFile, &fstat) < 0) {
+  if (taosFStatFile(shellTablesSQLFile, NULL, NULL) < 0) {
     shellTablesSQLFile[0] = 0;
   }
 }
@@ -109,13 +108,12 @@ static void shellMallocSQLFiles()
 
 static void shellGetDirectoryFileList(char *inputDir)
 {
-  struct stat fileStat;
-  if (stat(inputDir, &fileStat) < 0) {
+  if (!taosDirExist(inputDir)) {
     fprintf(stderr, "ERROR: %s not exist\n", inputDir);
     exit(0);
   }
 
-  if (fileStat.st_mode & S_IFDIR) {
+  if (taosIsDir(inputDir)) {
     shellCheckTablesSQLFile(inputDir);
     shellSQLFileNum = shellGetFilesNum(inputDir, "sql");
     int totalSQLFileNum = shellSQLFileNum;