diff --git a/cmake/cmake.options b/cmake/cmake.options
index 7c208cd5d2..06754433ac 100644
--- a/cmake/cmake.options
+++ b/cmake/cmake.options
@@ -178,7 +178,6 @@ option(
    "If use dev code" 
    ON 
 )
-
 if (${USE_DEV_CODE})
     add_definitions(-DUSE_DEV_CODE)
 endif(USE_DEV_CODE)
\ No newline at end of file
diff --git a/source/dnode/vnode/src/tsdb/dev/inc/tsdbFS.h b/source/dnode/vnode/src/tsdb/dev/inc/tsdbFS.h
index 34fdc4bf24..d6ba9e61b6 100644
--- a/source/dnode/vnode/src/tsdb/dev/inc/tsdbFS.h
+++ b/source/dnode/vnode/src/tsdb/dev/inc/tsdbFS.h
@@ -26,26 +26,28 @@ extern "C" {
 typedef struct STFileSystem STFileSystem;
 
 typedef enum {
-  TSDB_FS_EDIT_COMMIT = 1,  //
-  TSDB_FS_EDIT_MERGE
-} tsdb_fs_edit_t;
+  TSDB_FEDIT_COMMIT = 1,  //
+  TSDB_FEDIT_MERGE
+} EFEditT;
 
 /* Exposed APIs */
 // open/close
 int32_t tsdbOpenFileSystem(STsdb *pTsdb, STFileSystem **ppFS, int8_t rollback);
 int32_t tsdbCloseFileSystem(STFileSystem **ppFS);
 // txn
-int32_t tsdbFileSystemEditBegin(STFileSystem *pFS, const SArray *aFileOp, tsdb_fs_edit_t etype);
-int32_t tsdbFileSystemEditCommit(STFileSystem *pFS, tsdb_fs_edit_t etype);
-int32_t tsdbFileSystemEditAbort(STFileSystem *pFS, tsdb_fs_edit_t etype);
+int32_t tsdbFSEditBegin(STFileSystem *pFS, const SArray *aFileOp, EFEditT etype);
+int32_t tsdbFSEditCommit(STFileSystem *pFS, EFEditT etype);
+int32_t tsdbFSEditAbort(STFileSystem *pFS, EFEditT etype);
 
 /* Exposed Structs */
 struct STFileSystem {
   STsdb  *pTsdb;
   int32_t state;
   tsem_t  canEdit;
-  int64_t nextEditId;
+  int64_t neid;
   SArray *cstate;  // current state, SArray<STFileSet>
+  EFEditT etype;
+  int64_t eid;
   SArray *nstate;  // next state, SArray<STFileSet>
 };
 
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c b/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c
index 0a627b394c..cbde3bae4a 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c
@@ -357,11 +357,11 @@ static int32_t close_committer(SCommitter *pCommiter, int32_t eno) {
   int32_t lino;
 
   if (eno == 0) {
-    TSDB_CHECK_CODE(                     //
-        code = tsdbFileSystemEditBegin(  //
-            pCommiter->pTsdb->pFS,       //
-            pCommiter->aFileOp,          //
-            TSDB_FS_EDIT_COMMIT),
+    TSDB_CHECK_CODE(                //
+        code = tsdbFSEditBegin(     //
+            pCommiter->pTsdb->pFS,  //
+            pCommiter->aFileOp,     //
+            TSDB_FEDIT_COMMIT),
         lino,  //
         _exit);
   } else {
@@ -448,8 +448,8 @@ int32_t tsdbCommitCommit(STsdb *pTsdb) {
   // lock
   taosThreadRwlockWrlock(&pTsdb->rwLock);
 
-  code = tsdbFileSystemEditCommit(pTsdb->pFS,  //
-                                  TSDB_FS_EDIT_COMMIT);
+  code = tsdbFSEditCommit(pTsdb->pFS,  //
+                          TSDB_FEDIT_COMMIT);
   if (code) {
     taosThreadRwlockUnlock(&pTsdb->rwLock);
     TSDB_CHECK_CODE(code, lino, _exit);
@@ -481,8 +481,8 @@ int32_t tsdbCommitAbort(STsdb *pTsdb) {
   int32_t code = 0;
   int32_t lino = 0;
 
-  code = tsdbFileSystemEditAbort(pTsdb->pFS,  //
-                                 TSDB_FS_EDIT_COMMIT);
+  code = tsdbFSEditAbort(pTsdb->pFS,  //
+                         TSDB_FEDIT_COMMIT);
   TSDB_CHECK_CODE(code, lino, _exit);
 
 _exit:
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbFS.c b/source/dnode/vnode/src/tsdb/dev/tsdbFS.c
index f1ee05ce48..381c6465bc 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbFS.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbFS.c
@@ -15,8 +15,8 @@
 
 #include "inc/tsdbFS.h"
 
-#define TSDB_FS_EDIT_MIN TSDB_FS_EDIT_COMMIT
-#define TSDB_FS_EDIT_MAX (TSDB_FS_EDIT_MERGE + 1)
+#define TSDB_FS_EDIT_MIN TSDB_FEDIT_COMMIT
+#define TSDB_FS_EDIT_MAX (TSDB_FEDIT_MERGE + 1)
 
 enum {
   TSDB_FS_STATE_NONE = 0,
@@ -33,8 +33,8 @@ typedef enum {
 
 static const char *gCurrentFname[] = {
     [TSDB_FCURRENT] = "current.json",
-    [TSDB_FCURRENT_C] = "current.json.0",
-    [TSDB_FCURRENT_M] = "current.json.1",
+    [TSDB_FCURRENT_C] = "current.c.json",
+    [TSDB_FCURRENT_M] = "current.m.json",
 };
 
 static int32_t create_fs(STsdb *pTsdb, STFileSystem **ppFS) {
@@ -55,7 +55,7 @@ static int32_t create_fs(STsdb *pTsdb, STFileSystem **ppFS) {
   ppFS[0]->pTsdb = pTsdb;
   ppFS[0]->state = TSDB_FS_STATE_NONE;
   tsem_init(&ppFS[0]->canEdit, 0, 1);
-  ppFS[0]->nextEditId = 0;
+  ppFS[0]->neid = 0;
 
   return 0;
 }
@@ -194,17 +194,17 @@ static int32_t save_fs(int64_t eid, SArray *aTFileSet, const char *fname) {
   }
   for (int32_t i = 0; i < taosArrayGetSize(aTFileSet); i++) {
     STFileSet *pFileSet = (STFileSet *)taosArrayGet(aTFileSet, i);
+    cJSON     *item;
 
-    cJSON *tjson = cJSON_CreateObject();
-    if (tjson == NULL) {
+    if ((item = cJSON_CreateObject()) == NULL) {
       code = TSDB_CODE_OUT_OF_MEMORY;
       TSDB_CHECK_CODE(code, lino, _exit)
     }
 
-    code = tsdbFileSetToJson(pFileSet, tjson);
+    code = tsdbFileSetToJson(pFileSet, item);
     TSDB_CHECK_CODE(code, lino, _exit);
 
-    cJSON_AddItemToArray(ajson, tjson);
+    cJSON_AddItemToArray(ajson, item);
   }
 
   code = save_json(json, fname);
@@ -237,8 +237,7 @@ static int32_t load_fs(const char *fname, SArray *aTFileSet, int64_t *eid) {
   if (cJSON_IsNumber(item)) {
     ASSERT(item->valuedouble == 1);
   } else {
-    code = TSDB_CODE_FILE_CORRUPTED;
-    TSDB_CHECK_CODE(code, lino, _exit)
+    TSDB_CHECK_CODE(code = TSDB_CODE_FILE_CORRUPTED, lino, _exit)
   }
 
   /* eid */
@@ -246,8 +245,7 @@ static int32_t load_fs(const char *fname, SArray *aTFileSet, int64_t *eid) {
   if (cJSON_IsNumber(item)) {
     eid[0] = item->valuedouble;
   } else {
-    code = TSDB_CODE_FILE_CORRUPTED;
-    TSDB_CHECK_CODE(code, lino, _exit)
+    TSDB_CHECK_CODE(code = TSDB_CODE_FILE_CORRUPTED, lino, _exit)
   }
 
   /* fset */
@@ -255,18 +253,16 @@ static int32_t load_fs(const char *fname, SArray *aTFileSet, int64_t *eid) {
   if (cJSON_IsArray(item)) {
     const cJSON *titem;
     cJSON_ArrayForEach(titem, item) {
-      STFileSet *pFileSet = taosArrayReserve(aTFileSet, 1);
-      if (pFileSet == NULL) {
-        code = TSDB_CODE_OUT_OF_MEMORY;
-        TSDB_CHECK_CODE(code, lino, _exit);
+      STFileSet *pFileSet;
+      if ((pFileSet = taosArrayReserve(aTFileSet, 1)) == NULL) {
+        TSDB_CHECK_CODE(code = TSDB_CODE_OUT_OF_MEMORY, lino, _exit);
       }
 
       code = tsdbFileSetFromJson(titem, pFileSet);
       TSDB_CHECK_CODE(code, lino, _exit)
     }
   } else {
-    code = TSDB_CODE_FILE_CORRUPTED;
-    TSDB_CHECK_CODE(code, lino, _exit)
+    TSDB_CHECK_CODE(code = TSDB_CODE_FILE_CORRUPTED, lino, _exit)
   }
 
 _exit:
@@ -277,44 +273,55 @@ _exit:
   return code;
 }
 
-static int32_t commit_edit(STFileSystem *pFS, tsdb_fs_edit_t etype) {
-  int32_t code;
-  char    ofname[TSDB_FILENAME_LEN];
-  char    nfname[TSDB_FILENAME_LEN];
+static int32_t commit_edit(STFileSystem *pFS) {
+  char current[TSDB_FILENAME_LEN];
+  char current_t[TSDB_FILENAME_LEN];
 
-  current_fname(pFS->pTsdb, nfname, TSDB_FCURRENT);
-  current_fname(pFS->pTsdb, ofname, etype == TSDB_FS_EDIT_COMMIT ? TSDB_FCURRENT_C : TSDB_FCURRENT_M);
-
-  code = taosRenameFile(ofname, nfname);
-  if (code) {
-    code = TAOS_SYSTEM_ERROR(code);
-    return code;
+  current_fname(pFS->pTsdb, current, TSDB_FCURRENT);
+  if (pFS->etype == TSDB_FEDIT_COMMIT) {
+    current_fname(pFS->pTsdb, current, TSDB_FCURRENT_C);
+  } else if (pFS->etype == TSDB_FEDIT_MERGE) {
+    current_fname(pFS->pTsdb, current, TSDB_FCURRENT_M);
+  } else {
+    ASSERT(0);
   }
 
-  ASSERTS(0, "TODO: Do changes to pFS");
+  int32_t code;
+  int32_t lino;
+  if ((code = taosRenameFile(current_t, current))) {
+    TSDB_CHECK_CODE(code = TAOS_SYSTEM_ERROR(code), lino, _exit)
+  }
 
-  return 0;
+_exit:
+  if (code) {
+    tsdbError("vgId:%d %s failed at line %d since %s", TD_VID(pFS->pTsdb->pVnode), __func__, lino, tstrerror(code));
+  }
+  return code;
 }
 
-static int32_t abort_edit(STFileSystem *pFS, tsdb_fs_edit_t etype) {
-  int32_t code;
-  char    fname[TSDB_FILENAME_LEN];
+static int32_t abort_edit(STFileSystem *pFS) {
+  char fname[TSDB_FILENAME_LEN];
 
-  current_fname(pFS->pTsdb, fname, etype == TSDB_FS_EDIT_COMMIT ? TSDB_FCURRENT_C : TSDB_FCURRENT_M);
+  if (pFS->etype == TSDB_FEDIT_COMMIT) {
+    current_fname(pFS->pTsdb, fname, TSDB_FCURRENT_C);
+  } else if (pFS->etype == TSDB_FEDIT_MERGE) {
+    current_fname(pFS->pTsdb, fname, TSDB_FCURRENT_M);
+  } else {
+    ASSERT(0);
+  }
 
-  code = taosRemoveFile(fname);
+  int32_t code = taosRemoveFile(fname);
   if (code) code = TAOS_SYSTEM_ERROR(code);
-
   return code;
 }
 
 static int32_t scan_file_system(STFileSystem *pFS) {
-  // ASSERTS(0, "TODO: Not implemented yet");
+  // TODO
   return 0;
 }
 
 static int32_t scan_and_schedule_merge(STFileSystem *pFS) {
-  // ASSERTS(0, "TODO: Not implemented yet");
+  // TODO
   return 0;
 }
 
@@ -323,12 +330,12 @@ static int32_t update_fs_if_needed(STFileSystem *pFS) {
   return 0;
 }
 
-static int32_t open_fs(STFileSystem *pFS, int8_t rollback) {
+static int32_t open_fs(STFileSystem *fs, int8_t rollback) {
   int32_t code = 0;
   int32_t lino = 0;
-  STsdb  *pTsdb = pFS->pTsdb;
+  STsdb  *pTsdb = fs->pTsdb;
 
-  code = update_fs_if_needed(pFS);
+  code = update_fs_if_needed(fs);
   TSDB_CHECK_CODE(code, lino, _exit)
 
   char fCurrent[TSDB_FILENAME_LEN];
@@ -340,33 +347,37 @@ static int32_t open_fs(STFileSystem *pFS, int8_t rollback) {
   current_fname(pTsdb, mCurrent, TSDB_FCURRENT_M);
 
   if (taosCheckExistFile(fCurrent)) {  // current.json exists
-    code = load_fs(fCurrent, pFS->cstate, &pFS->nextEditId);
+    code = load_fs(fCurrent, fs->cstate, &fs->neid);
     TSDB_CHECK_CODE(code, lino, _exit);
 
-    // check current.json.commit existence
     if (taosCheckExistFile(cCurrent)) {
+      // current.c.json exists
+
+      fs->etype = TSDB_FEDIT_COMMIT;
       if (rollback) {
-        code = commit_edit(pFS, TSDB_FS_EDIT_COMMIT);
+        code = abort_edit(fs);
         TSDB_CHECK_CODE(code, lino, _exit);
       } else {
-        code = abort_edit(pFS, TSDB_FS_EDIT_COMMIT);
+        code = load_fs(cCurrent, fs->nstate, &fs->eid);
+        TSDB_CHECK_CODE(code, lino, _exit)
+
+        code = commit_edit(fs);
         TSDB_CHECK_CODE(code, lino, _exit);
       }
-    }
-
-    // check current.json.t existence
-    if (taosCheckExistFile(mCurrent)) {
-      code = abort_edit(pFS, TSDB_FS_EDIT_MERGE);
+    } else if (taosCheckExistFile(mCurrent)) {
+      // current.m.json exists
+      fs->etype = TSDB_FEDIT_MERGE;
+      code = abort_edit(fs);
       TSDB_CHECK_CODE(code, lino, _exit);
     }
 
-    code = scan_file_system(pFS);
+    code = scan_file_system(fs);
     TSDB_CHECK_CODE(code, lino, _exit);
 
-    code = scan_and_schedule_merge(pFS);
+    code = scan_and_schedule_merge(fs);
     TSDB_CHECK_CODE(code, lino, _exit);
   } else {
-    code = save_fs(0, pFS->nstate, fCurrent);
+    code = save_fs(0, fs->nstate, fCurrent);
     TSDB_CHECK_CODE(code, lino, _exit);
   }
 
@@ -479,12 +490,12 @@ int32_t tsdbCloseFileSystem(STFileSystem **ppFS) {
   return 0;
 }
 
-int32_t tsdbFileSystemEditBegin(STFileSystem *pFS, const SArray *aFileOp, tsdb_fs_edit_t etype) {
+int32_t tsdbFSEditBegin(STFileSystem *pFS, const SArray *aFileOp, EFEditT etype) {
   int32_t code = 0;
   int32_t lino;
   char    fname[TSDB_FILENAME_LEN];
 
-  // current_fname(pFS->pTsdb, fname, etype == TSDB_FS_EDIT_COMMIT ? TSDB_FCURRENT_C : TSDB_FCURRENT_M);
+  // current_fname(pFS->pTsdb, fname, etype == TSDB_FEDIT_COMMIT ? TSDB_FCURRENT_C : TSDB_FCURRENT_M);
 
   // tsem_wait(&pFS->canEdit);
 
@@ -514,8 +525,8 @@ _exit:
   return code;
 }
 
-int32_t tsdbFileSystemEditCommit(STFileSystem *pFS, tsdb_fs_edit_t etype) {
-  int32_t code = commit_edit(pFS, etype);
+int32_t tsdbFSEditCommit(STFileSystem *pFS, EFEditT etype) {
+  int32_t code = commit_edit(pFS);
   tsem_post(&pFS->canEdit);
   if (code) {
     tsdbError("vgId:%d %s failed since %s",  //
@@ -531,8 +542,8 @@ int32_t tsdbFileSystemEditCommit(STFileSystem *pFS, tsdb_fs_edit_t etype) {
   return code;
 }
 
-int32_t tsdbFileSystemEditAbort(STFileSystem *pFS, tsdb_fs_edit_t etype) {
-  int32_t code = abort_edit(pFS, etype);
+int32_t tsdbFSEditAbort(STFileSystem *pFS, EFEditT etype) {
+  int32_t code = abort_edit(pFS);
   if (code) {
     tsdbError("vgId:%d %s failed since %s, etype:%d",  //
               TD_VID(pFS->pTsdb->pVnode),              //
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c b/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
index 8bc892ef12..03c44cbcc6 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
@@ -69,14 +69,14 @@ static int32_t tsdbCloseMerger(SMerger *pMerger) {
 
   STsdb *pTsdb = pMerger->pTsdb;
 
-  code = tsdbFileSystemEditBegin(pTsdb->pFS, pMerger->aFileOp, TSDB_FS_EDIT_MERGE);
+  code = tsdbFSEditBegin(pTsdb->pFS, pMerger->aFileOp, TSDB_FEDIT_MERGE);
   TSDB_CHECK_CODE(code, lino, _exit)
 
 _exit:
   if (code) {
-    tsdbFileSystemEditAbort(pTsdb->pFS, TSDB_FS_EDIT_MERGE);
+    tsdbFSEditAbort(pTsdb->pFS, TSDB_FEDIT_MERGE);
   } else {
-    tsdbFileSystemEditCommit(pTsdb->pFS, TSDB_FS_EDIT_MERGE);
+    tsdbFSEditCommit(pTsdb->pFS, TSDB_FEDIT_MERGE);
   }
   tsdbDestroyMerger(pMerger);
   return code;