diff --git a/include/os/osFile.h b/include/os/osFile.h
index 3ff3b50550..cbd5d693c5 100644
--- a/include/os/osFile.h
+++ b/include/os/osFile.h
@@ -16,12 +16,12 @@
 #ifndef _TD_OS_FILE_H_
 #define _TD_OS_FILE_H_
 
-#include "osSocket.h"
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+#include "osSocket.h"
+
 #ifndef ALLOW_FORBID_FUNC
     #define open OPEN_FUNC_TAOS_FORBID
     #define fopen FOPEN_FUNC_TAOS_FORBID
@@ -43,6 +43,7 @@ typedef struct TdFile *TdFilePtr;
 #define TD_FILE_TEXT      0x0020
 #define TD_FILE_AUTO_DEL  0x0040
 #define TD_FILE_EXCL      0x0080
+#define TD_FILE_STREAM    0x0100   // Only support taosFprintfFile, taosGetLineFile, taosGetLineFile, taosEOFFile
  
 int32_t taosLockFile(TdFilePtr pFile);
 int32_t taosUnLockFile(TdFilePtr pFile);
diff --git a/source/common/src/ttszip.c b/source/common/src/ttszip.c
index a34895d264..f20e911681 100644
--- a/source/common/src/ttszip.c
+++ b/source/common/src/ttszip.c
@@ -1090,14 +1090,14 @@ int32_t dumpFileBlockByGroupId(STSBuf* pTSBuf, int32_t groupIndex, void* buf, in
   *numOfBlocks = 0;
 
   if (taosLSeekFile(pTSBuf->pFile, pBlockInfo->offset, SEEK_SET) != 0) {
-    int32_t code = TAOS_SYSTEM_ERROR(taosEOFFile(pTSBuf->pFile));
+    int32_t code = TAOS_SYSTEM_ERROR(taosGetErrorFile(pTSBuf->pFile));
     //    qError("%p: fseek failed: %s", pSql, tstrerror(code));
     return code;
   }
 
   size_t s = taosReadFile(pTSBuf->pFile, buf, pBlockInfo->compLen);
   if (s != pBlockInfo->compLen) {
-    int32_t code = TAOS_SYSTEM_ERROR(taosEOFFile(pTSBuf->pFile));
+    int32_t code = TAOS_SYSTEM_ERROR(taosGetErrorFile(pTSBuf->pFile));
     //    tscError("%p: fread didn't return expected data: %s", pSql, tstrerror(code));
     return code;
   }
diff --git a/source/dnode/mnode/impl/src/mndTelem.c b/source/dnode/mnode/impl/src/mndTelem.c
index 7c1215ea42..d6a4c76c62 100644
--- a/source/dnode/mnode/impl/src/mndTelem.c
+++ b/source/dnode/mnode/impl/src/mndTelem.c
@@ -63,7 +63,7 @@ static void mndAddCpuInfo(SMnode* pMnode, SBufferWriter* bw) {
   int32_t done = 0;
 
   // FILE* fp = fopen("/proc/cpuinfo", "r");
-  TdFilePtr pFile = taosOpenFile("/proc/cpuinfo", TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile("/proc/cpuinfo", TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     return;
   }
@@ -93,7 +93,7 @@ static void mndAddOsInfo(SMnode* pMnode, SBufferWriter* bw) {
   size_t size = 0;
 
   // FILE* fp = fopen("/etc/os-release", "r");
-  TdFilePtr pFile = taosOpenFile("/etc/os-release", TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile("/etc/os-release", TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     return;
   }
@@ -120,7 +120,7 @@ static void mndAddMemoryInfo(SMnode* pMnode, SBufferWriter* bw) {
   size_t size = 0;
 
   // FILE* fp = fopen("/proc/meminfo", "r");
-  TdFilePtr pFile = taosOpenFile("/proc/meminfo", TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile("/proc/meminfo", TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     return;
   }
diff --git a/source/os/src/osFile.c b/source/os/src/osFile.c
index 2d8314058e..4c040e4d7b 100644
--- a/source/os/src/osFile.c
+++ b/source/os/src/osFile.c
@@ -187,47 +187,63 @@ int32_t taosStatFile(const char *path, int64_t *size, int32_t *mtime) {
 void autoDelFileListAdd(const char *path) { return; }
 
 TdFilePtr taosOpenFile(const char *path, int32_t tdFileOptions) {
+  printf("%s(%d) %s path=%s tdFileOptions=%d\n", __FILE__, __LINE__,__func__,path,tdFileOptions);
 #if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
   return NULL;
 #else
-  int access = O_BINARY;
-  char *mode = NULL;
-  access |= (tdFileOptions & TD_FILE_CTEATE) ? O_CREAT : 0;
-  if ((tdFileOptions & TD_FILE_WRITE) && (tdFileOptions & TD_FILE_READ)) {
-    access |= O_RDWR;
-    mode = (tdFileOptions & TD_FILE_TEXT) ? "rt+" : "rb+";
-  } else if (tdFileOptions & TD_FILE_WRITE) {
-    access |= O_WRONLY;
-    mode = (tdFileOptions & TD_FILE_TEXT) ? "wt" : "wb";
-  } else if (tdFileOptions & TD_FILE_READ) {
-    access |= O_RDONLY;
-    mode = (tdFileOptions & TD_FILE_TEXT) ? "rt" : "rb";
+  int fd = -1;
+  FILE *fp = NULL;
+  if (tdFileOptions & TD_FILE_STREAM) {
+    char *mode = NULL;
+    if (tdFileOptions & TD_FILE_APPEND) {
+      mode = (tdFileOptions & TD_FILE_TEXT) ? "at+" : "ab+";
+    }else if (tdFileOptions & TD_FILE_TRUNC) {
+      mode = (tdFileOptions & TD_FILE_TEXT) ? "wt+" : "wb+";
+    }else {
+      mode = (tdFileOptions & TD_FILE_TEXT) ? "rt+" : "rb+";
+    }
+    assert(!(tdFileOptions & TD_FILE_EXCL));
+    fp = fopen(path, mode);
+    if (fp == NULL) {
+      printf("%s(%d) %s\n", __FILE__, __LINE__,__func__);
+      return NULL;
+    }
+  } else {
+    int access = O_BINARY;
+    access |= (tdFileOptions & TD_FILE_CTEATE) ? O_CREAT : 0;
+    if ((tdFileOptions & TD_FILE_WRITE) && (tdFileOptions & TD_FILE_READ)) {
+      access |= O_RDWR;
+    } else if (tdFileOptions & TD_FILE_WRITE) {
+      access |= O_WRONLY;
+    } else if (tdFileOptions & TD_FILE_READ) {
+      access |= O_RDONLY;
+    }
+    access |= (tdFileOptions & TD_FILE_TRUNC) ? O_TRUNC : 0;
+    access |= (tdFileOptions & TD_FILE_APPEND) ? O_APPEND : 0;
+    access |= (tdFileOptions & TD_FILE_TEXT) ? O_TEXT : 0;
+    access |= (tdFileOptions & TD_FILE_EXCL) ? O_EXCL : 0;
+    fd = open(path, access, S_IRWXU | S_IRWXG | S_IRWXO);
+    if (fd == -1) {
+      printf("%s(%d) %s access=%d\n", __FILE__, __LINE__,__func__,access);
+      return NULL;
+    }
   }
-  access |= (tdFileOptions & TD_FILE_TRUNC) ? O_TRUNC : 0;
-  access |= (tdFileOptions & TD_FILE_APPEND) ? O_APPEND : 0;
-  access |= (tdFileOptions & TD_FILE_TEXT) ? O_TEXT : 0;
-  access |= (tdFileOptions & TD_FILE_EXCL) ? O_EXCL : 0;
+
   if (tdFileOptions & TD_FILE_AUTO_DEL) {
     autoDelFileListAdd(path);
   }
-  int fd = open(path, access, S_IRWXU | S_IRWXG | S_IRWXO);
-  if (fd == -1) {
-    return NULL;
-  }
-  FILE *fp = fdopen(fd, mode);
-  if (fp == NULL) {
-    close(fd);
-    return NULL;
-  }
+
   TdFilePtr pFile = (TdFilePtr)malloc(sizeof(TdFile));
   if (pFile == NULL) {
-    close(fd);
-    fclose(fp);
+    if (fd >= 0) close(fd);
+    if (fp != NULL) fclose(fp);
+    printf("%s(%d) %s\n", __FILE__, __LINE__,__func__);
     return NULL;
   }
   pFile->fd = fd;
   pFile->fp = fp;
   pFile->refId = 0;
+  printf("%s(%d) %s\n", __FILE__, __LINE__,__func__);
   return pFile;
 #endif
 }
@@ -239,11 +255,16 @@ int64_t taosCloseFile(TdFilePtr *ppFile) {
   if (ppFile == NULL || *ppFile == NULL || (*ppFile)->fd == -1) {
     return 0;
   }
-  fflush((*ppFile)->fp);
-  fsync((*ppFile)->fd);
-  close((*ppFile)->fd);
-  (*ppFile)->fd = -1;
-  (*ppFile)->fp = NULL;
+  if ((*ppFile)->fp != NULL) {
+    fflush((*ppFile)->fp);
+    fclose((*ppFile)->fp);
+    (*ppFile)->fp = NULL;
+  }
+  if ((*ppFile)->fd >= 0) {
+    fsync((*ppFile)->fd);
+    close((*ppFile)->fd);
+    (*ppFile)->fd = -1;
+  }
   (*ppFile)->refId = 0;
   free(*ppFile);
   *ppFile = NULL;
@@ -255,6 +276,7 @@ int64_t taosReadFile(TdFilePtr pFile, void *buf, int64_t count) {
   if (pFile == NULL) {
     return 0;
   }
+  assert(pFile->fd >= 0);
   int64_t leftbytes = count;
   int64_t readbytes;
   char   *tbuf = (char *)buf;
@@ -282,10 +304,16 @@ int64_t taosPReadFile(TdFilePtr pFile, void *buf, int64_t count, int64_t offset)
   if (pFile == NULL) {
     return 0;
   }
+  assert(pFile->fd >= 0);
   return pread(pFile->fd, buf, count, offset);
 }
 
 int64_t taosWriteFile(TdFilePtr pFile, const void *buf, int64_t count) {
+  if (pFile == NULL) {
+    return 0;
+  }
+  assert(pFile->fd >= 0);
+
   int64_t nleft = count;
   int64_t nwritten = 0;
   char   *tbuf = (char *)buf;
@@ -296,21 +324,20 @@ int64_t taosWriteFile(TdFilePtr pFile, const void *buf, int64_t count) {
       if (errno == EINTR) {
         continue;
       }
-      fflush(pFile->fp);
-      fsync(pFile->fd);
       return -1;
     }
     nleft -= nwritten;
     tbuf += nwritten;
   }
 
-  fflush(pFile->fp);
-  fsync(pFile->fd);
   return count;
 }
 
 int64_t taosLSeekFile(TdFilePtr pFile, int64_t offset, int32_t whence) {
-  if (pFile == NULL) return -1;
+  if (pFile == NULL) {
+    return 0;
+  }
+  assert(pFile->fd >= 0);
   return (int64_t)lseek(pFile->fd, (long)offset, whence);
 }
 
@@ -318,6 +345,11 @@ int32_t taosFStatFile(TdFilePtr pFile, int64_t *size, int32_t *mtime) {
 #if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
   return 0;
 #else
+  if (pFile == NULL) {
+    return 0;
+  }
+  assert(pFile->fd >= 0);
+
   struct stat fileStat;
   int32_t code = fstat(pFile->fd, &fileStat);
   if (code < 0) {
@@ -340,6 +372,11 @@ int32_t taosLockFile(TdFilePtr pFile) {
 #if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
   return 0;
 #else
+  if (pFile == NULL) {
+    return 0;
+  }
+  assert(pFile->fd >= 0);
+
   return (int32_t)flock(pFile->fd, LOCK_EX | LOCK_NB);
 #endif
 }
@@ -348,6 +385,11 @@ int32_t taosUnLockFile(TdFilePtr pFile) {
 #if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
   return 0;
 #else
+  if (pFile == NULL) {
+    return 0;
+  }
+  assert(pFile->fd >= 0);
+
   return (int32_t)flock(pFile->fd, LOCK_UN | LOCK_NB);
 #endif
 }
@@ -403,6 +445,11 @@ int32_t taosFtruncateFile(TdFilePtr pFile, int64_t l_size) {
 
   return 0;
 #else
+  if (pFile == NULL) {
+    return 0;
+  }
+  assert(pFile->fd >= 0);
+
   return ftruncate(pFile->fd, l_size);
 #endif
 }
@@ -419,7 +466,14 @@ int32_t taosFsyncFile(TdFilePtr pFile) {
 
   return FlushFileBuffers(h);
 #else
-  return fflush(pFile->fp);
+  if (pFile == NULL) {
+    return 0;
+  }
+
+  if (pFile->fp != NULL) return fflush(pFile->fp);
+  if (pFile->fp >= 0) return fsync(pFile->fd);
+
+  return 0;
 #endif
 }
 
@@ -543,6 +597,11 @@ int64_t taosSendFile(SocketFd dfd, FileFd sfd, int64_t *offset, int64_t count) {
 #else
 
 int64_t taosSendFile(SocketFd fdDst, TdFilePtr pFileSrc, int64_t *offset, int64_t size) {
+  if (pFileSrc == NULL) {
+    return 0;
+  }
+  assert(pFileSrc->fd >= 0);
+
   int64_t leftbytes = size;
   int64_t sentbytes;
 
@@ -565,12 +624,22 @@ int64_t taosSendFile(SocketFd fdDst, TdFilePtr pFileSrc, int64_t *offset, int64_
 }
 
 int64_t taosFSendFile(TdFilePtr pFileOut, TdFilePtr pFileIn, int64_t *offset, int64_t size) {
+  if (pFileOut == NULL || pFileIn == NULL) {
+    return 0;
+  }
+  assert(pFileOut->fd >= 0);
+
   return taosSendFile(pFileOut->fd, pFileIn, offset, size);
 }
 
 #endif
 
 void taosFprintfFile(TdFilePtr pFile, const char *format, ...) {
+  if (pFile == NULL) {
+    return;
+  }
+  assert(pFile->fp != NULL);
+
   char           buffer[MAX_FPRINTFLINE_BUFFER_SIZE] = {0};
   va_list ap;
   va_start(ap, format);
@@ -580,7 +649,10 @@ void taosFprintfFile(TdFilePtr pFile, const char *format, ...) {
 }
 
 void *taosMmapReadOnlyFile(TdFilePtr pFile, int64_t length) {
-  if (pFile == NULL) return NULL;
+  if (pFile == NULL) {
+    return NULL;
+  }
+  assert(pFile->fd >= 0);
 
   void *ptr = mmap(NULL, length, PROT_READ, MAP_SHARED, pFile->fd, 0);
   return ptr;
@@ -598,7 +670,19 @@ int32_t taosUmaskFile(int32_t maskVal) {
 
 int32_t taosGetErrorFile(TdFilePtr pFile) { return errno; }
 int64_t taosGetLineFile(TdFilePtr pFile, char **__restrict__ ptrBuf) {
+  if (pFile == NULL) {
+    return -1;
+  }
+  assert(pFile->fp != NULL);
+
   size_t len = 0;
   return getline(ptrBuf, &len, pFile->fp);
 }
-int32_t taosEOFFile(TdFilePtr pFile) { return feof(pFile->fp); }
\ No newline at end of file
+int32_t taosEOFFile(TdFilePtr pFile) { 
+  if (pFile == NULL) {
+    return 0;
+  }
+  assert(pFile->fp != NULL);
+
+  return feof(pFile->fp); 
+}
\ No newline at end of file
diff --git a/source/os/src/osSysinfo.c b/source/os/src/osSysinfo.c
index 45749588c1..cf9c557f5e 100644
--- a/source/os/src/osSysinfo.c
+++ b/source/os/src/osSysinfo.c
@@ -404,7 +404,7 @@ bool taosGetSysMemory(float *memoryUsedMB) {
 
 bool taosGetProcMemory(float *memoryUsedMB) {
   // FILE *fp = fopen(tsProcMemFile, "r");
-  TdFilePtr pFile = taosOpenFile(tsProcMemFile, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(tsProcMemFile, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     //printf("open file:%s failed", tsProcMemFile);
     return false;
@@ -440,7 +440,7 @@ bool taosGetProcMemory(float *memoryUsedMB) {
 
 static bool taosGetSysCpuInfo(SysCpuInfo *cpuInfo) {
   // FILE *fp = fopen(tsSysCpuFile, "r");
-  TdFilePtr pFile = taosOpenFile(tsSysCpuFile, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(tsSysCpuFile, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     //printf("open file:%s failed", tsSysCpuFile);
     return false;
@@ -465,7 +465,7 @@ static bool taosGetSysCpuInfo(SysCpuInfo *cpuInfo) {
 
 static bool taosGetProcCpuInfo(ProcCpuInfo *cpuInfo) {
   // FILE *fp = fopen(tsProcCpuFile, "r");
-  TdFilePtr pFile = taosOpenFile(tsProcCpuFile, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(tsProcCpuFile, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     //printf("open file:%s failed", tsProcCpuFile);
     return false;
@@ -550,7 +550,7 @@ int32_t taosGetDiskSize(char *dataDir, SDiskSize *diskSize) {
 bool taosGetCardInfo(int64_t *bytes, int64_t *rbytes, int64_t *tbytes) {
   *bytes = 0;
   // FILE *fp = fopen(tsSysNetFile, "r");
-  TdFilePtr pFile = taosOpenFile(tsSysNetFile, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(tsSysNetFile, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     //printf("open file:%s failed", tsSysNetFile);
     return false;
@@ -636,7 +636,7 @@ bool taosGetBandSpeed(float *bandSpeedKb) {
 
 bool taosReadProcIO(int64_t *rchars, int64_t *wchars) {
   // FILE *fp = fopen(tsProcIOFile, "r");
-  TdFilePtr pFile = taosOpenFile(tsProcIOFile, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(tsProcIOFile, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     //printf("open file:%s failed", tsProcIOFile);
     return false;
diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index b495e1ade1..8330c10ec7 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -609,7 +609,7 @@ int32_t cfgLoadFromCfgFile(SConfig *pConfig, const char *filepath) {
   ssize_t _bytes = 0;
 
   // FILE *fp = fopen(filepath, "r");
-  TdFilePtr pFile = taosOpenFile(filepath, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(filepath, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     terrno = TAOS_SYSTEM_ERROR(errno);
     return -1;
diff --git a/tools/shell/src/backup/shellImport.c b/tools/shell/src/backup/shellImport.c
index ce15212f86..c0ab7ef461 100644
--- a/tools/shell/src/backup/shellImport.c
+++ b/tools/shell/src/backup/shellImport.c
@@ -171,7 +171,7 @@ static void shellSourceFile(TAOS *con, char *fptr) {
   */
 
   // FILE *f = fopen(fname, "r");
-  TdFilePtr pFile = taosOpenFile(fname, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(fname, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     fprintf(stderr, "ERROR: failed to open file %s\n", fname);
     wordfree(&full_path);
diff --git a/tools/shell/src/shellEngine.c b/tools/shell/src/shellEngine.c
index e43267f032..5a989937d8 100644
--- a/tools/shell/src/shellEngine.c
+++ b/tools/shell/src/shellEngine.c
@@ -517,7 +517,7 @@ static int dumpResultToFile(const char *fname, TAOS_RES *tres) {
   }
 
   // FILE *fp = fopen(full_path.we_wordv[0], "w");
-  TdFilePtr pFile = taosOpenFile(full_path.we_wordv[0], TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC);
+  TdFilePtr pFile = taosOpenFile(full_path.we_wordv[0], TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC | TD_FILE_STREAM);
   if (pFile == NULL) {
     fprintf(stderr, "ERROR: failed to open file: %s\n", full_path.we_wordv[0]);
     wordfree(&full_path);
@@ -904,7 +904,7 @@ void read_history() {
   get_history_path(f_history);
 
   // FILE *f = fopen(f_history, "r");
-  TdFilePtr pFile = taosOpenFile(f_history, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(f_history, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
 #ifndef WINDOWS
     if (errno != ENOENT) {
@@ -934,7 +934,7 @@ void write_history() {
   get_history_path(f_history);
 
   // FILE *f = fopen(f_history, "w");
-  TdFilePtr pFile = taosOpenFile(f_history, TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC);
+  TdFilePtr pFile = taosOpenFile(f_history, TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC | TD_FILE_STREAM);
   if (pFile == NULL) {
 #ifndef WINDOWS
     fprintf(stderr, "Failed to open file %s for write, reason:%s\n", f_history, strerror(errno));
@@ -991,7 +991,7 @@ void source_file(TAOS *con, char *fptr) {
   */
 
   // FILE *f = fopen(fname, "r");
-  TdFilePtr pFile = taosOpenFile(fname, TD_FILE_READ);
+  TdFilePtr pFile = taosOpenFile(fname, TD_FILE_READ | TD_FILE_STREAM);
   if (pFile == NULL) {
     fprintf(stderr, "ERROR: failed to open file %s\n", fname);
     wordfree(&full_path);