diff --git a/source/libs/stream/inc/streamBackendRocksdb.h b/source/libs/stream/inc/streamBackendRocksdb.h
index 704bc9a2f2..bb6362ff73 100644
--- a/source/libs/stream/inc/streamBackendRocksdb.h
+++ b/source/libs/stream/inc/streamBackendRocksdb.h
@@ -247,6 +247,7 @@ int32_t streamBackendAddInUseChkp(void* arg, int64_t chkpId);
 int32_t streamBackendDelInUseChkp(void* arg, int64_t chkpId);
 
 int32_t taskDbBuildSnap(void* arg, SArray* pSnap);
+int32_t taskDbDestroySnap(void* arg, SArray* pSnapInfo);
 
 int32_t taskDbDoCheckpoint(void* arg, int64_t chkpId);
 
diff --git a/source/libs/stream/src/streamBackendRocksdb.c b/source/libs/stream/src/streamBackendRocksdb.c
index 5f3eb9c630..af06ac94e7 100644
--- a/source/libs/stream/src/streamBackendRocksdb.c
+++ b/source/libs/stream/src/streamBackendRocksdb.c
@@ -146,6 +146,9 @@ static bool                streamStateIterSeekAndValid(rocksdb_iterator_t* iter,
 static rocksdb_iterator_t* streamStateIterCreate(SStreamState* pState, const char* cfName,
                                                  rocksdb_snapshot_t** snapshot, rocksdb_readoptions_t** readOpt);
 
+void taskDbRefChkp(STaskDbWrapper* pTaskDb, int64_t chkp);
+void taskDbUnRefChkp(STaskDbWrapper* pTaskDb, int64_t chkp);
+
 #define GEN_COLUMN_FAMILY_NAME(name, idstr, SUFFIX) sprintf(name, "%s_%s", idstr, (SUFFIX));
 int32_t  copyFiles(const char* src, const char* dst);
 uint32_t nextPow2(uint32_t x);
@@ -1017,7 +1020,7 @@ int chkpIdComp(const void* a, const void* b) {
 
   return x < y ? -1 : 1;
 }
-int32_t chkpLoadInfo(STaskDbWrapper* pBackend) {
+int32_t taskDbLoadChkpInfo(STaskDbWrapper* pBackend) {
   int32_t code = 0;
   char*   pChkpDir = taosMemoryCalloc(1, 256);
 
@@ -1087,7 +1090,7 @@ int32_t chkpDoDbCheckpoint(rocksdb_t* db, char* path) {
     taosMemoryFreeClear(err);
     goto _ERROR;
   }
-  rocksdb_checkpoint_create(cp, path, UINT64_MAX, &err);
+  rocksdb_checkpoint_create(cp, path, 0, &err);
   if (err != NULL) {
     stError("failed to do checkpoint at:%s, reason:%s", path, err);
     taosMemoryFreeClear(err);
@@ -1152,9 +1155,12 @@ int32_t taskDbBuildSnap(void* arg, SArray* pSnap) {
     STaskDbWrapper* pTaskDb = *(STaskDbWrapper**)pIter;
     taskDbAddRef(pTaskDb);
 
-    code = taskDbDoCheckpoint(pTaskDb, pTaskDb->chkpId);
+    int64_t chkpId = pTaskDb->chkpId;
+    code = taskDbDoCheckpoint(pTaskDb, chkpId);
     taskDbRemoveRef(pTaskDb);
 
+    taskDbRefChkp(pTaskDb, pTaskDb->chkpId);
+
     SStreamTask*    pTask = pTaskDb->pTask;
     SStreamTaskSnap snap = {.streamId = pTask->id.streamId,
                             .taskId = pTask->id.taskId,
@@ -1167,6 +1173,28 @@ int32_t taskDbBuildSnap(void* arg, SArray* pSnap) {
 
   return code;
 }
+int32_t taskDbDestroySnap(void* arg, SArray* pSnapInfo) {
+  if (pSnapInfo == NULL) return 0;
+  SStreamMeta* pMeta = arg;
+  int32_t      code = 0;
+  taosThreadMutexLock(&pMeta->backendMutex);
+
+  char buf[128] = {0};
+  for (int i = 0; i < taosArrayGetSize(pSnapInfo); i++) {
+    SStreamTaskSnap* pSnap = taosArrayGet(pSnapInfo, i);
+    sprintf(buf, "0x%" PRIx64 "-0x%x", pSnap->streamId, (int32_t)pSnap->taskId);
+    STaskDbWrapper* pTaskDb = taosHashGet(pMeta->pTaskDbUnique, buf, strlen(buf));
+    if (pTaskDb == NULL) {
+      stWarn("stream backend:%p failed to find task db, streamId:% " PRId64 "", pMeta, pSnap->streamId);
+      continue;
+    }
+    memset(buf, 0, sizeof(buf));
+
+    taskDbUnRefChkp(pTaskDb, pSnap->chkpId);
+  }
+  taosThreadMutexUnlock(&pMeta->backendMutex);
+  return 0;
+}
 #ifdef BUILD_NO_CALL
 int32_t streamBackendAddInUseChkp(void* arg, int64_t chkpId) {
   // if (arg == NULL) return 0;
@@ -1946,13 +1974,32 @@ void taskDbInitChkpOpt(STaskDbWrapper* pTaskDb) {
   pTaskDb->chkpId = -1;
   pTaskDb->chkpCap = 4;
   pTaskDb->chkpSaved = taosArrayInit(4, sizeof(int64_t));
-  chkpLoadInfo(pTaskDb);
+  taskDbLoadChkpInfo(pTaskDb);
 
   pTaskDb->chkpInUse = taosArrayInit(4, sizeof(int64_t));
 
   taosThreadRwlockInit(&pTaskDb->chkpDirLock, NULL);
 }
 
+void taskDbRefChkp(STaskDbWrapper* pTaskDb, int64_t chkp) {
+  taosThreadRwlockWrlock(&pTaskDb->chkpDirLock);
+  taosArrayPush(pTaskDb->chkpInUse, &chkp);
+  taosArraySort(pTaskDb->chkpInUse, chkpIdComp);
+  taosThreadRwlockUnlock(&pTaskDb->chkpDirLock);
+}
+
+void taskDbUnRefChkp(STaskDbWrapper* pTaskDb, int64_t chkp) {
+  taosThreadRwlockWrlock(&pTaskDb->chkpDirLock);
+  for (int i = 0; i < taosArrayGetSize(pTaskDb->chkpInUse); i++) {
+    int64_t* p = taosArrayGet(pTaskDb->chkpInUse, i);
+    if (*p == chkp) {
+      taosArrayRemove(pTaskDb->chkpInUse, i);
+      break;
+    }
+  }
+  taosThreadRwlockUnlock(&pTaskDb->chkpDirLock);
+}
+
 void taskDbDestroyChkpOpt(STaskDbWrapper* pTaskDb) {
   taosArrayDestroy(pTaskDb->chkpSaved);
   taosArrayDestroy(pTaskDb->chkpInUse);
@@ -2179,15 +2226,18 @@ int32_t taskDbGenChkpUploadData__s3(STaskDbWrapper* pDb, void* bkdChkpMgt, int64
   return code;
 }
 int32_t taskDbGenChkpUploadData(void* arg, void* mgt, int64_t chkpId, int8_t type, char** path, SArray* list) {
+  int32_t                 code = -1;
   STaskDbWrapper*         pDb = arg;
   ECHECKPOINT_BACKUP_TYPE utype = type;
 
+  taskDbRefChkp(pDb, chkpId);
   if (utype == DATA_UPLOAD_RSYNC) {
-    return taskDbGenChkpUploadData__rsync(pDb, chkpId, path);
+    code = taskDbGenChkpUploadData__rsync(pDb, chkpId, path);
   } else if (utype == DATA_UPLOAD_S3) {
-    return taskDbGenChkpUploadData__s3(pDb, mgt, chkpId, path, list);
+    code = taskDbGenChkpUploadData__s3(pDb, mgt, chkpId, path, list);
   }
-  return -1;
+  taskDbUnRefChkp(pDb, chkpId);
+  return code;
 }
 
 int32_t taskDbOpenCfByKey(STaskDbWrapper* pDb, const char* key) {
diff --git a/source/libs/stream/src/streamSnapshot.c b/source/libs/stream/src/streamSnapshot.c
index 1800324cc8..63a3e9e0df 100644
--- a/source/libs/stream/src/streamSnapshot.c
+++ b/source/libs/stream/src/streamSnapshot.c
@@ -75,6 +75,7 @@ struct SStreamSnapHandle {
   char*          metaPath;
 
   SArray* pDbSnapSet;
+  SArray* pSnapInfoSet;
   int32_t currIdx;
   int8_t  delFlag;  // 0 : not del, 1: del
 };
@@ -140,7 +141,9 @@ TdFilePtr streamOpenFile(char* path, char* name, int32_t opt) {
   return taosOpenFile(fullname, opt);
 }
 
-int32_t streamTaskDbGetSnapInfo(void* arg, char* path, SArray* pSnap) { return taskDbBuildSnap(arg, pSnap); }
+int32_t streamCreateTaskDbSnapInfo(void* arg, char* path, SArray* pSnap) { return taskDbBuildSnap(arg, pSnap); }
+
+int32_t streamDestroyTasdDbSnapInfo(void* arg, SArray* snap) { return taskDbDestroySnap(arg, snap); }
 
 void snapFileDebugInfo(SBackendSnapFile2* pSnapFile) {
   if (qDebugFlag & DEBUG_DEBUG) {
@@ -291,29 +294,24 @@ void snapFileDestroy(SBackendSnapFile2* pSnap) {
 }
 int32_t streamSnapHandleInit(SStreamSnapHandle* pHandle, char* path, void* pMeta) {
   // impl later
-  SArray* pSnapSet = taosArrayInit(4, sizeof(SStreamTaskSnap));
-  int32_t code = streamTaskDbGetSnapInfo(pMeta, path, pSnapSet);
+  SArray* pSnapInfoSet = taosArrayInit(4, sizeof(SStreamTaskSnap));
+  int32_t code = streamCreateTaskDbSnapInfo(pMeta, path, pSnapInfoSet);
   if (code != 0) {
     return -1;
   }
 
   SArray* pDbSnapSet = taosArrayInit(8, sizeof(SBackendSnapFile2));
 
-  for (int32_t i = 0; i < taosArrayGetSize(pSnapSet); i++) {
-    SStreamTaskSnap* pSnap = taosArrayGet(pSnapSet, i);
+  for (int32_t i = 0; i < taosArrayGetSize(pSnapInfoSet); i++) {
+    SStreamTaskSnap* pSnap = taosArrayGet(pSnapInfoSet, i);
 
     SBackendSnapFile2 snapFile = {0};
     code = streamBackendSnapInitFile(path, pSnap, &snapFile);
     ASSERT(code == 0);
     taosArrayPush(pDbSnapSet, &snapFile);
   }
-  for (int32_t i = 0; i < taosArrayGetSize(pSnapSet); i++) {
-    SStreamTaskSnap* pSnap = taosArrayGet(pSnapSet, i);
-    taosMemoryFree(pSnap->dbPrefixPath);
-  }
-  taosArrayDestroy(pSnapSet);
-
   pHandle->pDbSnapSet = pDbSnapSet;
+  pHandle->pSnapInfoSet = pSnapInfoSet;
   pHandle->currIdx = 0;
   return 0;
 
@@ -333,6 +331,14 @@ void streamSnapHandleDestroy(SStreamSnapHandle* handle) {
     }
     taosArrayDestroy(handle->pDbSnapSet);
   }
+  streamDestroyTasdDbSnapInfo(handle->handle, handle->pSnapInfoSet);
+  if (handle->pSnapInfoSet) {
+    for (int32_t i = 0; i < taosArrayGetSize(handle->pSnapInfoSet); i++) {
+      SStreamTaskSnap* pSnap = taosArrayGet(handle->pSnapInfoSet, i);
+      taosMemoryFree(pSnap->dbPrefixPath);
+    }
+    taosArrayDestroy(handle->pSnapInfoSet);
+  }
   taosMemoryFree(handle->metaPath);
   return;
 }