diff --git a/include/common/tdatablock.h b/include/common/tdatablock.h
index af46535c948a2aa0be0282f580b68ade9955c8fa..709462a7449dade291fc06166b7fc08e80f96cb4 100644
--- a/include/common/tdatablock.h
+++ b/include/common/tdatablock.h
@@ -234,9 +234,6 @@ int32_t buildSubmitReqFromDataBlock(SSubmitReq** pReq, const SArray* pDataBlocks
 
 char* buildCtbNameByGroupId(const char* stbName, uint64_t groupId);
 
-SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pSchema, bool createTb, int64_t suid,
-                            const char* stbFullName, int32_t vgId);
-
 static FORCE_INLINE int32_t blockGetEncodeSize(const SSDataBlock* pBlock) {
   return blockDataGetSerialMetaSize(pBlock->info.numOfCols) + blockDataGetSize(pBlock);
 }
diff --git a/source/common/src/tdatablock.c b/source/common/src/tdatablock.c
index 4d1f5a34b185538c6eddfd92c242cb403c3dd397..b4ece426b398bff07515343b58ccdcc38ca52b58 100644
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@@ -1728,173 +1728,6 @@ char* buildCtbNameByGroupId(const char* stbName, uint64_t groupId) {
   return rname.childTableName;
 }
 
-SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, bool createTb, int64_t suid,
-                            const char* stbFullName, int32_t vgId) {
-  SSubmitReq* ret = NULL;
-  SArray*     tagArray = taosArrayInit(1, sizeof(STagVal));
-  if (!tagArray) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    return NULL;
-  }
-
-  // cal size
-  int32_t cap = sizeof(SSubmitReq);
-  int32_t sz = taosArrayGetSize(pBlocks);
-  for (int32_t i = 0; i < sz; i++) {
-    SSDataBlock* pDataBlock = taosArrayGet(pBlocks, i);
-    int32_t      rows = pDataBlock->info.rows;
-    // TODO min
-    int32_t rowSize = pDataBlock->info.rowSize;
-    int32_t maxLen = TD_ROW_MAX_BYTES_FROM_SCHEMA(pTSchema);
-    int32_t schemaLen = 0;
-
-    if (createTb) {
-      SVCreateTbReq createTbReq = {0};
-      char*         cname = buildCtbNameByGroupId(stbFullName, pDataBlock->info.groupId);
-      createTbReq.name = cname;
-      createTbReq.flags = 0;
-      createTbReq.type = TSDB_CHILD_TABLE;
-      createTbReq.ctb.suid = suid;
-
-      STagVal tagVal = {.cid = pDataBlock->info.numOfCols + 1,
-                        .type = TSDB_DATA_TYPE_UBIGINT,
-                        .pData = (uint8_t*)&pDataBlock->info.groupId,
-                        .nData = sizeof(uint64_t)};
-      STag*   pTag = NULL;
-      taosArrayClear(tagArray);
-      taosArrayPush(tagArray, &tagVal);
-      tTagNew(tagArray, 1, false, &pTag);
-      if (pTag == NULL) {
-        tdDestroySVCreateTbReq(&createTbReq);
-        taosArrayDestroy(tagArray);
-        return NULL;
-      }
-      createTbReq.ctb.pTag = (uint8_t*)pTag;
-
-      int32_t code;
-      tEncodeSize(tEncodeSVCreateTbReq, &createTbReq, schemaLen, code);
-
-      tdDestroySVCreateTbReq(&createTbReq);
-      if (code < 0) {
-        taosArrayDestroy(tagArray);
-        return NULL;
-      }
-    }
-
-    cap += sizeof(SSubmitBlk) + schemaLen + rows * maxLen;
-  }
-
-  // assign data
-  // TODO
-  ret = taosMemoryCalloc(1, cap + 46);
-  ret = POINTER_SHIFT(ret, 46);
-  ret->header.vgId = vgId;
-  ret->version = htonl(1);
-  ret->length = sizeof(SSubmitReq);
-  ret->numOfBlocks = htonl(sz);
-
-  void* submitBlk = POINTER_SHIFT(ret, sizeof(SSubmitReq));
-  for (int32_t i = 0; i < sz; i++) {
-    SSDataBlock* pDataBlock = taosArrayGet(pBlocks, i);
-
-    SSubmitBlk* blkHead = submitBlk;
-    blkHead->numOfRows = htons(pDataBlock->info.rows);
-    blkHead->sversion = htonl(pTSchema->version);
-    // TODO
-    blkHead->suid = htobe64(suid);
-    // uid is assigned by vnode
-    blkHead->uid = 0;
-
-    int32_t rows = pDataBlock->info.rows;
-    /*int32_t maxLen = TD_ROW_MAX_BYTES_FROM_SCHEMA(pTSchema);*/
-    /*blkHead->dataLen = htonl(rows * maxLen);*/
-    blkHead->dataLen = 0;
-
-    void* blockData = POINTER_SHIFT(submitBlk, sizeof(SSubmitBlk));
-
-    int32_t schemaLen = 0;
-    if (createTb) {
-      SVCreateTbReq createTbReq = {0};
-      char*         cname = buildCtbNameByGroupId(stbFullName, pDataBlock->info.groupId);
-      createTbReq.name = cname;
-      createTbReq.flags = 0;
-      createTbReq.type = TSDB_CHILD_TABLE;
-      createTbReq.ctb.suid = suid;
-
-      STagVal tagVal = {.cid = pDataBlock->info.numOfCols + 1,
-                        .type = TSDB_DATA_TYPE_UBIGINT,
-                        .pData = (uint8_t*)&pDataBlock->info.groupId,
-                        .nData = sizeof(uint64_t)};
-      taosArrayClear(tagArray);
-      taosArrayPush(tagArray, &tagVal);
-      STag* pTag = NULL;
-      tTagNew(tagArray, 1, false, &pTag);
-      if (pTag == NULL) {
-        tdDestroySVCreateTbReq(&createTbReq);
-        taosArrayDestroy(tagArray);
-        taosMemoryFreeClear(ret);
-        return NULL;
-      }
-      createTbReq.ctb.pTag = (uint8_t*)pTag;
-
-      int32_t code;
-      tEncodeSize(tEncodeSVCreateTbReq, &createTbReq, schemaLen, code);
-      if (code < 0) {
-        tdDestroySVCreateTbReq(&createTbReq);
-        taosArrayDestroy(tagArray);
-        taosMemoryFreeClear(ret);
-        return NULL;
-      }
-
-      SEncoder encoder = {0};
-      tEncoderInit(&encoder, blockData, schemaLen);
-      code = tEncodeSVCreateTbReq(&encoder, &createTbReq);
-      tEncoderClear(&encoder);
-      tdDestroySVCreateTbReq(&createTbReq);
-
-      if (code < 0) {
-        taosArrayDestroy(tagArray);
-        taosMemoryFreeClear(ret);
-        return NULL;
-      }
-    }
-    blkHead->schemaLen = htonl(schemaLen);
-
-    STSRow* rowData = POINTER_SHIFT(blockData, schemaLen);
-
-    for (int32_t j = 0; j < rows; j++) {
-      SRowBuilder rb = {0};
-      tdSRowInit(&rb, pTSchema->version);
-      tdSRowSetTpInfo(&rb, pTSchema->numOfCols, pTSchema->flen);
-      tdSRowResetBuf(&rb, rowData);
-
-      for (int32_t k = 0; k < pTSchema->numOfCols; k++) {
-        const STColumn*  pColumn = &pTSchema->columns[k];
-        SColumnInfoData* pColData = taosArrayGet(pDataBlock->pDataBlock, k);
-        if (colDataIsNull_s(pColData, j)) {
-          tdAppendColValToRow(&rb, pColumn->colId, pColumn->type, TD_VTYPE_NONE, NULL, false, pColumn->offset, k);
-        } else {
-          void* data = colDataGetData(pColData, j);
-          tdAppendColValToRow(&rb, pColumn->colId, pColumn->type, TD_VTYPE_NORM, data, true, pColumn->offset, k);
-        }
-      }
-      int32_t rowLen = TD_ROW_LEN(rowData);
-      rowData = POINTER_SHIFT(rowData, rowLen);
-      blkHead->dataLen += rowLen;
-    }
-    int32_t dataLen = blkHead->dataLen;
-    blkHead->dataLen = htonl(dataLen);
-
-    ret->length += sizeof(SSubmitBlk) + schemaLen + dataLen;
-    blkHead = POINTER_SHIFT(blkHead, schemaLen + dataLen);
-    /*submitBlk = blkHead;*/
-  }
-
-  ret->length = htonl(ret->length);
-  taosArrayDestroy(tagArray);
-  return ret;
-}
-
 void blockCompressEncode(const SSDataBlock* pBlock, char* data, int32_t* dataLen, int32_t numOfCols,
                          int8_t needCompress) {
   // todo extract method
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 22685c1e194d35dce4b079b5edfd6ad9c2ca351c..9f34ae39c06fe284d4c2402fea04b703f70adf4c 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -47,7 +47,7 @@ void tqCleanUp() {
 }
 
 STQ* tqOpen(const char* path, SVnode* pVnode, SWal* pWal) {
-  STQ* pTq = taosMemoryMalloc(sizeof(STQ));
+  STQ* pTq = taosMemoryCalloc(1, sizeof(STQ));
   if (pTq == NULL) {
     terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return NULL;
diff --git a/source/dnode/vnode/src/tq/tqOffset.c b/source/dnode/vnode/src/tq/tqOffset.c
index 2db49d7cf53f284aeac1bc44cb3db787a50aff94..41444b72881f493039e48e35a2884cf52b7d5724 100644
--- a/source/dnode/vnode/src/tq/tqOffset.c
+++ b/source/dnode/vnode/src/tq/tqOffset.c
@@ -17,21 +17,33 @@
 #include "tq.h"
 
 struct STqOffsetStore {
+  char*     fname;
   STQ*      pTq;
   SHashObj* pHash;  // SHashObj<subscribeKey, offset>
 };
 
+static char* buildFileName(const char* path) {
+  int32_t len = strlen(path);
+  char*   fname = taosMemoryCalloc(1, len + 20);
+  snprintf(fname, len + 20, "%s/offset", path);
+  return fname;
+}
+
 STqOffsetStore* tqOffsetOpen(STQ* pTq) {
   STqOffsetStore* pStore = taosMemoryCalloc(1, sizeof(STqOffsetStore));
   if (pStore == NULL) {
     return NULL;
   }
+  pStore->pTq = pTq;
+  pTq->pOffsetStore = pStore;
+
   pStore->pHash = taosHashInit(64, MurmurHash3_32, true, HASH_NO_LOCK);
   if (pStore->pHash == NULL) {
     if (pStore->pHash) taosHashCleanup(pStore->pHash);
     return NULL;
   }
-  TdFilePtr pFile = taosOpenFile(pStore->pTq->path, TD_FILE_READ);
+  char*     fname = buildFileName(pStore->pTq->path);
+  TdFilePtr pFile = taosOpenFile(fname, TD_FILE_READ);
   if (pFile != NULL) {
     STqOffsetHead head = {0};
     int64_t       code;
@@ -65,6 +77,7 @@ STqOffsetStore* tqOffsetOpen(STQ* pTq) {
     }
 
     taosCloseFile(&pFile);
+    taosMemoryFree(fname);
   }
   return pStore;
 }
@@ -85,7 +98,8 @@ int32_t tqOffsetWrite(STqOffsetStore* pStore, const STqOffset* pOffset) {
 int32_t tqOffsetSnapshot(STqOffsetStore* pStore) {
   // open file
   // TODO file name should be with a version
-  TdFilePtr pFile = taosOpenFile(pStore->pTq->path, TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_APPEND);
+  char*     fname = buildFileName(pStore->pTq->path);
+  TdFilePtr pFile = taosOpenFile(fname, TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_APPEND);
   if (pFile == NULL) {
     ASSERT(0);
     return -1;
@@ -124,5 +138,6 @@ int32_t tqOffsetSnapshot(STqOffsetStore* pStore) {
   }
   // close and rename file
   taosCloseFile(&pFile);
+  taosMemoryFree(fname);
   return 0;
 }
diff --git a/source/dnode/vnode/src/tq/tqSink.c b/source/dnode/vnode/src/tq/tqSink.c
index 5c0bf971fb8702ffbb73ed92feb8c97d1f4032d1..391a00844004e97a2dda7b57304706b66d831f75 100644
--- a/source/dnode/vnode/src/tq/tqSink.c
+++ b/source/dnode/vnode/src/tq/tqSink.c
@@ -15,6 +15,175 @@
 
 #include "tq.h"
 
+static SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pSchema, bool createTb, int64_t suid,
+                                   const char* stbFullName, int32_t vgId);
+
+static SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, bool createTb, int64_t suid,
+                                   const char* stbFullName, int32_t vgId) {
+  SSubmitReq* ret = NULL;
+  SArray*     tagArray = taosArrayInit(1, sizeof(STagVal));
+  if (!tagArray) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return NULL;
+  }
+
+  // cal size
+  int32_t cap = sizeof(SSubmitReq);
+  int32_t sz = taosArrayGetSize(pBlocks);
+  for (int32_t i = 0; i < sz; i++) {
+    SSDataBlock* pDataBlock = taosArrayGet(pBlocks, i);
+    int32_t      rows = pDataBlock->info.rows;
+    // TODO min
+    int32_t rowSize = pDataBlock->info.rowSize;
+    int32_t maxLen = TD_ROW_MAX_BYTES_FROM_SCHEMA(pTSchema);
+    int32_t schemaLen = 0;
+
+    if (createTb) {
+      SVCreateTbReq createTbReq = {0};
+      char*         cname = buildCtbNameByGroupId(stbFullName, pDataBlock->info.groupId);
+      createTbReq.name = cname;
+      createTbReq.flags = 0;
+      createTbReq.type = TSDB_CHILD_TABLE;
+      createTbReq.ctb.suid = suid;
+
+      STagVal tagVal = {.cid = pDataBlock->info.numOfCols + 1,
+                        .type = TSDB_DATA_TYPE_UBIGINT,
+                        .pData = (uint8_t*)&pDataBlock->info.groupId,
+                        .nData = sizeof(uint64_t)};
+      STag*   pTag = NULL;
+      taosArrayClear(tagArray);
+      taosArrayPush(tagArray, &tagVal);
+      tTagNew(tagArray, 1, false, &pTag);
+      if (pTag == NULL) {
+        tdDestroySVCreateTbReq(&createTbReq);
+        taosArrayDestroy(tagArray);
+        return NULL;
+      }
+      createTbReq.ctb.pTag = (uint8_t*)pTag;
+
+      int32_t code;
+      tEncodeSize(tEncodeSVCreateTbReq, &createTbReq, schemaLen, code);
+
+      tdDestroySVCreateTbReq(&createTbReq);
+      if (code < 0) {
+        taosArrayDestroy(tagArray);
+        return NULL;
+      }
+    }
+
+    cap += sizeof(SSubmitBlk) + schemaLen + rows * maxLen;
+  }
+
+  // assign data
+  // TODO
+  ret = rpcMallocCont(cap);
+  ret->header.vgId = vgId;
+  ret->version = htonl(1);
+  ret->length = sizeof(SSubmitReq);
+  ret->numOfBlocks = htonl(sz);
+
+  void* submitBlk = POINTER_SHIFT(ret, sizeof(SSubmitReq));
+  for (int32_t i = 0; i < sz; i++) {
+    SSDataBlock* pDataBlock = taosArrayGet(pBlocks, i);
+
+    SSubmitBlk* blkHead = submitBlk;
+    blkHead->numOfRows = htons(pDataBlock->info.rows);
+    blkHead->sversion = htonl(pTSchema->version);
+    // TODO
+    blkHead->suid = htobe64(suid);
+    // uid is assigned by vnode
+    blkHead->uid = 0;
+
+    int32_t rows = pDataBlock->info.rows;
+    /*int32_t maxLen = TD_ROW_MAX_BYTES_FROM_SCHEMA(pTSchema);*/
+    /*blkHead->dataLen = htonl(rows * maxLen);*/
+    blkHead->dataLen = 0;
+
+    void* blockData = POINTER_SHIFT(submitBlk, sizeof(SSubmitBlk));
+
+    int32_t schemaLen = 0;
+    if (createTb) {
+      SVCreateTbReq createTbReq = {0};
+      char*         cname = buildCtbNameByGroupId(stbFullName, pDataBlock->info.groupId);
+      createTbReq.name = cname;
+      createTbReq.flags = 0;
+      createTbReq.type = TSDB_CHILD_TABLE;
+      createTbReq.ctb.suid = suid;
+
+      STagVal tagVal = {.cid = pDataBlock->info.numOfCols + 1,
+                        .type = TSDB_DATA_TYPE_UBIGINT,
+                        .pData = (uint8_t*)&pDataBlock->info.groupId,
+                        .nData = sizeof(uint64_t)};
+      taosArrayClear(tagArray);
+      taosArrayPush(tagArray, &tagVal);
+      STag* pTag = NULL;
+      tTagNew(tagArray, 1, false, &pTag);
+      if (pTag == NULL) {
+        tdDestroySVCreateTbReq(&createTbReq);
+        taosArrayDestroy(tagArray);
+        taosMemoryFreeClear(ret);
+        return NULL;
+      }
+      createTbReq.ctb.pTag = (uint8_t*)pTag;
+
+      int32_t code;
+      tEncodeSize(tEncodeSVCreateTbReq, &createTbReq, schemaLen, code);
+      if (code < 0) {
+        tdDestroySVCreateTbReq(&createTbReq);
+        taosArrayDestroy(tagArray);
+        taosMemoryFreeClear(ret);
+        return NULL;
+      }
+
+      SEncoder encoder = {0};
+      tEncoderInit(&encoder, blockData, schemaLen);
+      code = tEncodeSVCreateTbReq(&encoder, &createTbReq);
+      tEncoderClear(&encoder);
+      tdDestroySVCreateTbReq(&createTbReq);
+
+      if (code < 0) {
+        taosArrayDestroy(tagArray);
+        taosMemoryFreeClear(ret);
+        return NULL;
+      }
+    }
+    blkHead->schemaLen = htonl(schemaLen);
+
+    STSRow* rowData = POINTER_SHIFT(blockData, schemaLen);
+
+    for (int32_t j = 0; j < rows; j++) {
+      SRowBuilder rb = {0};
+      tdSRowInit(&rb, pTSchema->version);
+      tdSRowSetTpInfo(&rb, pTSchema->numOfCols, pTSchema->flen);
+      tdSRowResetBuf(&rb, rowData);
+
+      for (int32_t k = 0; k < pTSchema->numOfCols; k++) {
+        const STColumn*  pColumn = &pTSchema->columns[k];
+        SColumnInfoData* pColData = taosArrayGet(pDataBlock->pDataBlock, k);
+        if (colDataIsNull_s(pColData, j)) {
+          tdAppendColValToRow(&rb, pColumn->colId, pColumn->type, TD_VTYPE_NONE, NULL, false, pColumn->offset, k);
+        } else {
+          void* data = colDataGetData(pColData, j);
+          tdAppendColValToRow(&rb, pColumn->colId, pColumn->type, TD_VTYPE_NORM, data, true, pColumn->offset, k);
+        }
+      }
+      int32_t rowLen = TD_ROW_LEN(rowData);
+      rowData = POINTER_SHIFT(rowData, rowLen);
+      blkHead->dataLen += rowLen;
+    }
+    int32_t dataLen = blkHead->dataLen;
+    blkHead->dataLen = htonl(dataLen);
+
+    ret->length += sizeof(SSubmitBlk) + schemaLen + dataLen;
+    blkHead = POINTER_SHIFT(blkHead, schemaLen + dataLen);
+    /*submitBlk = blkHead;*/
+  }
+
+  ret->length = htonl(ret->length);
+  taosArrayDestroy(tagArray);
+  return ret;
+}
+
 void tqTableSink(SStreamTask* pTask, void* vnode, int64_t ver, void* data) {
   const SArray* pRes = (const SArray*)data;
   SVnode*       pVnode = (SVnode*)vnode;