diff --git a/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h b/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h
index 35bbdddcda..03311e8161 100644
--- a/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h
+++ b/source/dnode/vnode/src/tsdb/dev/inc/tsdbDataFileRW.h
@@ -68,7 +68,7 @@ typedef struct SDataFileWriterConfig {
 } SDataFileWriterConfig;
 
 int32_t tsdbDataFileWriterOpen(const SDataFileWriterConfig *config, SDataFileWriter **writer);
-int32_t tsdbDataFileWriterClose(SDataFileWriter **writer, bool abort, STFileOp op[/*TSDB_FTYPE_MAX*/]);
+int32_t tsdbDataFileWriterClose(SDataFileWriter **writer, bool abort, TFileOpArray *opArr);
 int32_t tsdbDataFileWriteTSData(SDataFileWriter *writer, SRowInfo *row);
 int32_t tsdbDataFileWriteTSDataBlock(SDataFileWriter *writer, SBlockData *bData);
 int32_t tsdbDataFileFlushTSDataBlock(SDataFileWriter *writer);
diff --git a/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h b/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
index 594aca9a67..33cb8335a9 100644
--- a/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
+++ b/source/dnode/vnode/src/tsdb/dev/inc/tsdbSttFileRW.h
@@ -60,7 +60,7 @@ typedef struct SSttFileWriter       SSttFileWriter;
 typedef struct SSttFileWriterConfig SSttFileWriterConfig;
 
 int32_t tsdbSttFileWriterOpen(const SSttFileWriterConfig *config, SSttFileWriter **writer);
-int32_t tsdbSttFileWriterClose(SSttFileWriter **writer, int8_t abort, STFileOp *op);
+int32_t tsdbSttFileWriterClose(SSttFileWriter **writer, int8_t abort, TFileOpArray *opArray);
 int32_t tsdbSttFileWriteTSData(SSttFileWriter *writer, SRowInfo *row);
 int32_t tsdbSttFileWriteTSDataBlock(SSttFileWriter *writer, SBlockData *pBlockData);
 int32_t tsdbSttFileWriteDLData(SSttFileWriter *writer, TABLEID *tbid, SDelData *pDelData);
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c b/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c
index 05eb12e897..7a6eff4bac 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbCommit.c
@@ -299,15 +299,9 @@ static int32_t tsdbCommitFileSetEnd(SCommitter2 *committer) {
   int32_t code = 0;
   int32_t lino = 0;
 
-  STFileOp op[1];
-  code = tsdbSttFileWriterClose(&committer->sttWriter, 0, op);
+  code = tsdbSttFileWriterClose(&committer->sttWriter, 0, committer->fopArray);
   TSDB_CHECK_CODE(code, lino, _exit);
 
-  if (op->optype != TSDB_FOP_NONE) {
-    code = TARRAY2_APPEND_PTR(committer->fopArray, op);
-    TSDB_CHECK_CODE(code, lino, _exit);
-  }
-
   tsdbIterMergerClose(&committer->iterMerger);
   TARRAY2_CLEAR(committer->iterArray, tsdbIterClose);
 
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c b/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c
index 3d89647d56..48f49c2fdd 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbDataFileRW.c
@@ -299,13 +299,13 @@ static int32_t tsdbDataFileWriterDoOpenReader(SDataFileWriter *writer) {
       code = tsdbDataFileReaderOpen(NULL, config, &writer->ctx->reader);
       TSDB_CHECK_CODE(code, lino, _exit);
 
+      code = tsdbDataFileReadBlockIdx(writer->ctx->reader, &writer->ctx->blockIdxArray);
+      TSDB_CHECK_CODE(code, lino, _exit);
+
       break;
     }
   }
 
-  code = tsdbDataFileReadBlockIdx(writer->ctx->reader, &writer->ctx->blockIdxArray);
-  TSDB_CHECK_CODE(code, lino, _exit);
-
 _exit:
   if (code) {
     TSDB_ERROR_LOG(TD_VID(writer->config->tsdb->pVnode), lino, code);
@@ -709,7 +709,7 @@ _exit:
   return code;
 }
 
-static int32_t tsdbDataFileWriterCloseCommit(SDataFileWriter *writer, STFileOp *op) {
+static int32_t tsdbDataFileWriterCloseCommit(SDataFileWriter *writer, TFileOpArray *opArr) {
   int32_t code = 0;
   int32_t lino = 0;
   TABLEID tbid[1] = {{INT64_MAX, INT64_MAX}};
@@ -726,64 +726,81 @@ static int32_t tsdbDataFileWriterCloseCommit(SDataFileWriter *writer, STFileOp *
   code = tsdbDataFileWriteFooter(writer);
   TSDB_CHECK_CODE(code, lino, _exit);
 
+  STFileOp op;
+  int32_t  ftype;
+
   // .head
-  int32_t ftype = TSDB_FTYPE_HEAD;
-  op[ftype] = (STFileOp){
+  ftype = TSDB_FTYPE_HEAD;
+  if (writer->config->files[ftype].exist) {
+    op = (STFileOp){
+        .optype = TSDB_FOP_REMOVE,
+        .fid = writer->config->fid,
+        .of = writer->config->files[ftype].file,
+    };
+
+    code = TARRAY2_APPEND(opArr, op);
+    TSDB_CHECK_CODE(code, lino, _exit);
+  }
+  op = (STFileOp){
       .optype = TSDB_FOP_CREATE,
       .fid = writer->config->fid,
       .nf = writer->files[ftype],
   };
+  code = TARRAY2_APPEND(opArr, op);
+  TSDB_CHECK_CODE(code, lino, _exit);
 
   // .data
   ftype = TSDB_FTYPE_DATA;
   if (writer->fd[ftype]) {
     if (!writer->config->files[ftype].exist) {
-      op[ftype] = (STFileOp){
+      op = (STFileOp){
           .optype = TSDB_FOP_CREATE,
           .fid = writer->config->fid,
           .nf = writer->files[ftype],
       };
-    } else if (writer->config->files[ftype].file.size == writer->files[ftype].size) {
-      op[ftype].optype = TSDB_FOP_NONE;
-    } else {
-      op[ftype] = (STFileOp){
+
+      code = TARRAY2_APPEND(opArr, op);
+      TSDB_CHECK_CODE(code, lino, _exit);
+    } else if (writer->config->files[ftype].file.size != writer->files[ftype].size) {
+      op = (STFileOp){
           .optype = TSDB_FOP_MODIFY,
           .fid = writer->config->fid,
           .of = writer->config->files[ftype].file,
           .nf = writer->files[ftype],
       };
+
+      code = TARRAY2_APPEND(opArr, op);
+      TSDB_CHECK_CODE(code, lino, _exit);
     }
-  } else {
-    op[ftype].optype = TSDB_FOP_NONE;
   }
 
   // .sma
   ftype = TSDB_FTYPE_SMA;
   if (writer->fd[ftype]) {
     if (!writer->config->files[ftype].exist) {
-      op[ftype] = (STFileOp){
+      op = (STFileOp){
           .optype = TSDB_FOP_CREATE,
           .fid = writer->config->fid,
           .nf = writer->files[ftype],
       };
-    } else if (writer->config->files[ftype].file.size == writer->files[ftype].size) {
-      op[ftype].optype = TSDB_FOP_NONE;
-    } else {
-      op[ftype] = (STFileOp){
+
+      code = TARRAY2_APPEND(opArr, op);
+      TSDB_CHECK_CODE(code, lino, _exit);
+    } else if (writer->config->files[ftype].file.size != writer->files[ftype].size) {
+      op = (STFileOp){
           .optype = TSDB_FOP_MODIFY,
           .fid = writer->config->fid,
           .of = writer->config->files[ftype].file,
           .nf = writer->files[ftype],
       };
+
+      code = TARRAY2_APPEND(opArr, op);
+      TSDB_CHECK_CODE(code, lino, _exit);
     }
-  } else {
-    op[ftype].optype = TSDB_FOP_NONE;
   }
 
-  // .tomb
-  op[TSDB_FTYPE_TOMB] = (STFileOp){
-      .optype = TSDB_FOP_NONE,
-  };
+  // .tomb (TODO)
+  ftype = TSDB_FTYPE_TOMB;
 
   for (int32_t i = 0; i < TSDB_FTYPE_MAX; ++i) {
     if (!writer->fd[i]) continue;
@@ -807,25 +824,21 @@ int32_t tsdbDataFileWriterOpen(const SDataFileWriterConfig *config, SDataFileWri
   return 0;
 }
 
-int32_t tsdbDataFileWriterClose(SDataFileWriter **writer, bool abort, STFileOp op[/*TSDB_FTYPE_MAX*/]) {
+int32_t tsdbDataFileWriterClose(SDataFileWriter **writer, bool abort, TFileOpArray *opArr) {
   int32_t code = 0;
   int32_t lino = 0;
 
-  if (!writer[0]->ctx->opened) {
-    for (int32_t i = 0; i < TSDB_FTYPE_MAX; ++i) {
-      op[i].optype = TSDB_FOP_NONE;
-    }
-  } else {
+  if (writer[0]->ctx->opened) {
     if (abort) {
       code = tsdbDataFileWriterCloseAbort(writer[0]);
       TSDB_CHECK_CODE(code, lino, _exit);
     } else {
-      code = tsdbDataFileWriterCloseCommit(writer[0], op);
+      code = tsdbDataFileWriterCloseCommit(writer[0], opArr);
       TSDB_CHECK_CODE(code, lino, _exit);
     }
     tsdbDataFileWriterDoClose(writer[0]);
   }
-  taosMemoryFree(writer);
+  taosMemoryFree(writer[0]);
   writer[0] = NULL;
 
 _exit:
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c b/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
index a9910ee0b4..730dfc97a6 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbMerge.c
@@ -270,7 +270,16 @@ static int32_t tsdbMergeFileSetBeginOpenReader(SMerger *merger) {
 
   merger->ctx->toData = true;
   merger->ctx->level = 0;
-  TARRAY2_FOREACH(merger->ctx->fset->lvlArr, merger->ctx->lvl) {
+
+  // TARRAY2_FOREACH(merger->ctx->fset->lvlArr, merger->ctx->lvl) {
+
+  for (int32_t i = 0;; ++i) {
+    if (i >= TARRAY2_SIZE(merger->ctx->fset->lvlArr)) {
+      merger->ctx->lvl = NULL;
+      break;
+    }
+
+    merger->ctx->lvl = TARRAY2_GET(merger->ctx->fset->lvlArr, i);
     if (merger->ctx->lvl->level != merger->ctx->level || TARRAY2_SIZE(merger->ctx->lvl->fobjArr) == 0) {
       merger->ctx->toData = false;
       merger->ctx->lvl = NULL;
@@ -486,25 +495,12 @@ static int32_t tsdbMergeFileSetEndCloseWriter(SMerger *merger) {
   int32_t lino = 0;
   int32_t vid = TD_VID(merger->tsdb->pVnode);
 
-  STFileOp op[TSDB_FTYPE_MAX];
-
-  code = tsdbSttFileWriterClose(&merger->sttWriter, 0, op);
+  code = tsdbSttFileWriterClose(&merger->sttWriter, 0, merger->fopArr);
   TSDB_CHECK_CODE(code, lino, _exit);
 
-  if (op->optype != TSDB_FOP_NONE) {
-    code = TARRAY2_APPEND_PTR(merger->fopArr, op);
-    TSDB_CHECK_CODE(code, lino, _exit);
-  }
-
   if (merger->ctx->toData) {
-    // TODO
-    code = tsdbDataFileWriterClose(&merger->dataWriter, 0, op);
+    code = tsdbDataFileWriterClose(&merger->dataWriter, 0, merger->fopArr);
     TSDB_CHECK_CODE(code, lino, _exit);
-
-    if (op->optype != TSDB_FOP_NONE) {
-      code = TARRAY2_APPEND_PTR(merger->fopArr, op);
-      TSDB_CHECK_CODE(code, lino, _exit);
-    }
   }
 
 _exit:
diff --git a/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c b/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
index a03f976812..89025f5a0e 100644
--- a/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
+++ b/source/dnode/vnode/src/tsdb/dev/tsdbSttFileRW.c
@@ -621,7 +621,7 @@ static int32_t tsdbSttFileDoUpdateHeader(SSttFileWriter *writer) {
   return 0;
 }
 
-static int32_t tsdbSttFWriterCloseCommit(SSttFileWriter *writer, STFileOp *op) {
+static int32_t tsdbSttFWriterCloseCommit(SSttFileWriter *writer, TFileOpArray *opArray) {
   int32_t lino;
   int32_t code;
   int32_t vid = TD_VID(writer->config->tsdb->pVnode);
@@ -656,10 +656,15 @@ static int32_t tsdbSttFWriterCloseCommit(SSttFileWriter *writer, STFileOp *op) {
   tsdbCloseFile(&writer->fd);
 
   ASSERT(writer->config->file.size < writer->file->size);
-  op->optype = writer->config->file.size ? TSDB_FOP_MODIFY : TSDB_FOP_CREATE;
-  op->fid = writer->config->file.fid;
-  op->of = writer->config->file;
-  op->nf = writer->file[0];
+  STFileOp op = {
+      .optype = writer->config->file.size ? TSDB_FOP_MODIFY : TSDB_FOP_CREATE,
+      .fid = writer->config->file.fid,
+      .of = writer->config->file,
+      .nf = writer->file[0],
+  };
+
+  code = TARRAY2_APPEND(opArray, op);
+  TSDB_CHECK_CODE(code, lino, _exit);
 
 _exit:
   if (code) {
@@ -694,19 +699,17 @@ int32_t tsdbSttFileWriterOpen(const SSttFileWriterConfig *config, SSttFileWriter
   return 0;
 }
 
-int32_t tsdbSttFileWriterClose(SSttFileWriter **writer, int8_t abort, STFileOp *op) {
+int32_t tsdbSttFileWriterClose(SSttFileWriter **writer, int8_t abort, TFileOpArray *opArray) {
   int32_t code = 0;
   int32_t lino = 0;
   int32_t vid = TD_VID(writer[0]->config->tsdb->pVnode);
 
-  if (!writer[0]->ctx->opened) {
-    if (op) op->optype = TSDB_FOP_NONE;
-  } else {
+  if (writer[0]->ctx->opened) {
     if (abort) {
       code = tsdbSttFWriterCloseAbort(writer[0]);
       TSDB_CHECK_CODE(code, lino, _exit);
     } else {
-      code = tsdbSttFWriterCloseCommit(writer[0], op);
+      code = tsdbSttFWriterCloseCommit(writer[0], opArray);
       TSDB_CHECK_CODE(code, lino, _exit);
     }
     tsdbSttFWriterDoClose(writer[0]);