fix stream state transfer

source/libs/stream/src/streamSnapshot.c

@@ -89,6 +89,17 @@ void    streamSnapHandleDestroy(SStreamSnapHandle* handle);
     sprintf(fullname, "%s%s%s", path, TD_DIRSEP, file);     \
   } while (0)
 
+int32_t getFileSize(char* path, char* name, int64_t* sz) {
+  int ret = 0;
+
+  char* fullname = taosMemoryCalloc(1, strlen(path) + 32);
+  sprintf(fullname, "%s%s%s", path, TD_DIRSEP, name);
+
+  ret = taosStatFile(fullname, sz, NULL);
+  taosMemoryFree(fullname);
+
+  return ret;
+}
 int32_t streamSnapHandleInit(SStreamSnapHandle* pHandle, char* path, int64_t chkpId) {
   // impl later
   int   len = strlen(path);
@@ -157,32 +168,32 @@ int32_t streamSnapHandleInit(SStreamSnapHandle* pHandle, char* path, int64_t chk
   // current
   item.name = pFile->pCurrent;
   item.type = ROCKSDB_CURRENT_TYPE;
-  if (taosStatFile(pFile->pCurrent, &item.size, NULL) != 0) {
-    qError("stream-state failed to get file size: %s", pFile->pCurrent);
-  }
+  getFileSize(pFile->path, item.name, &item.size);
   taosArrayPush(list, &item);
+
   // mainfest
   item.name = pFile->pMainfest;
   item.type = ROCKSDB_MAINFEST_TYPE;
-  taosStatFile(pFile->pMainfest, &item.size, NULL);
+  getFileSize(pFile->path, item.name, &item.size);
   taosArrayPush(list, &item);
+
   // options
   item.name = pFile->pOptions;
   item.type = ROCKSDB_OPTIONS_TYPE;
-  taosStatFile(pFile->pOptions, &item.size, NULL);
+  getFileSize(pFile->path, item.name, &item.size);
   taosArrayPush(list, &item);
   // sst
   for (int i = 0; i < taosArrayGetSize(pFile->pSst); i++) {
     char* sst = taosArrayGetP(pFile->pSst, i);
     item.name = sst;
     item.type = ROCKSDB_SST_TYPE;
-    taosStatFile(sst, &item.size, NULL);
+    getFileSize(pFile->path, item.name, &item.size);
     taosArrayPush(list, &item);
   }
   // meta
   item.name = pFile->pCheckpointMeta;
   item.type = ROCKSDB_CHECKPOINT_META_TYPE;
-  taosStatFile(pFile->pCheckpointMeta, &item.size, NULL);
+  getFileSize(pFile->path, item.name, &item.size);
   taosArrayPush(list, &item);
 
   pHandle->pBackendFile = pFile;
@@ -305,8 +316,8 @@ int32_t streamSnapRead(SStreamSnapReader* pReader, uint8_t** ppData, int64_t* si
     item = taosArrayGet(pHandle->pFileList, pHandle->currFileIdx);
     char fullname[256] = {0};
     STREAM_ROCKSDB_BUILD_FULLNAME(pFile->path, item->name, fullname);
-    pHandle->fd = taosOpenFile(fullname, TD_FILE_READ);
 
+    pHandle->fd = taosOpenFile(fullname, TD_FILE_READ);
     nread = taosPReadFile(pHandle->fd, buf + sizeof(SStreamSnapBlockHdr), kBlockSize, pHandle->offset);
     pHandle->offset += nread;
 
@@ -349,7 +360,12 @@ int32_t streamSnapWriterOpen(void* pMeta, int64_t sver, int64_t ever, char* path
   pHandle->pFileList = list;
   pHandle->currFileIdx = 0;
   pHandle->offset = 0;
-  pHandle->fd = taosOpenFile(taosArrayGet(pHandle->pFileList, pHandle->currFileIdx), TD_FILE_WRITE);
+
+  char  fullname[256] = {0};
+  char* name = ((SBackendFileItem*)taosArrayGet(pHandle->pFileList, pHandle->currFileIdx))->name;
+  STREAM_ROCKSDB_BUILD_FULLNAME(pFile->path, name, fullname);
+
+  pHandle->fd = taosOpenFile(fullname, TD_FILE_WRITE);
   *ppWriter = pWriter;
   return 0;
 }
@@ -378,8 +394,9 @@ int32_t streamSnapWrite(SStreamSnapWriter* pWriter, uint8_t* pData, uint32_t nDa
     item.type = pHdr->type;
     taosArrayPush(pHandle->pFileList, &item);
 
-    char  fullname[256] = {0};
-    char* name = ((SBackendFileItem*)taosArrayGet(pHandle->pFileList, taosArrayGetSize(pHandle->pFileList) - 1))->name;
+    char fullname[256] = {0};
+
+    char* name = ((SBackendFileItem*)taosArrayGet(pHandle->pFileList, pHandle->currFileIdx))->name;
     STREAM_ROCKSDB_BUILD_FULLNAME(pFile->path, name, fullname);
     pHandle->fd = taosOpenFile(fullname, TD_FILE_WRITE);
 
@@ -406,6 +423,7 @@ int32_t streamSnapWriterClose(SStreamSnapWriter* pWriter, int8_t rollback) {
     qDebug("stream snap get file list, %s", buf);
     taosMemoryFree(buf);
   }
+
   for (int i = 0; i < taosArrayGetSize(handle->pFileList); i++) {
     SBackendFileItem* item = taosArrayGet(handle->pFileList, i);
     taosMemoryFree(item->name);