Update metaSnapshot.c

source/dnode/vnode/src/meta/metaSnapshot.c

@@ -109,7 +109,7 @@ int32_t metaSnapRead(SMetaSnapReader* pReader, uint8_t** ppData) {
   }
 
   SSnapDataHdr* pHdr = (SSnapDataHdr*)(*ppData);
-  pHdr->type = 0;  // TODO: use macro
+  pHdr->type = SNAP_DATA_META;
   pHdr->size = nData;
   memcpy(pHdr->data, pData, nData);
 
@@ -144,8 +144,6 @@ int32_t metaSnapWriterOpen(SMeta* pMeta, int64_t sver, int64_t ever, SMetaSnapWr
   pWriter->pMeta = pMeta;
   pWriter->sver = sver;
   pWriter->ever = ever;
-  
-  metaBegin(pMeta);
 
   metaBegin(pMeta);
 
@@ -196,4 +194,4 @@ int32_t metaSnapWrite(SMetaSnapWriter* pWriter, uint8_t* pData, uint32_t nData)
 _err:
   metaError("vgId:%d vnode snapshot meta write failed since %s", TD_VID(pMeta->pVnode), tstrerror(code));
   return code;
-}
+}
\ No newline at end of file