fix(stream): fix error.

source/libs/stream/src/streamCheckpoint.c

@@ -262,9 +262,13 @@ int32_t streamProcessCheckpointReadyMsg(SStreamTask* pTask) {
 int32_t streamSaveAllTaskStatus(SStreamMeta* pMeta, int64_t checkpointId) {
   taosWLockLatch(&pMeta->lock);
 
+  int64_t keys[2];
   for (int32_t i = 0; i < taosArrayGetSize(pMeta->pTaskList); ++i) {
-    uint32_t*    pTaskId = taosArrayGet(pMeta->pTaskList, i);
-    SStreamTask* p = *(SStreamTask**)taosHashGet(pMeta->pTasks, pTaskId, sizeof(*pTaskId));
+    SStreamId* pId = taosArrayGet(pMeta->pTaskList, i);
+    keys[0] = pId->streamId;
+    keys[1] = pId->taskId;
+
+    SStreamTask* p = *(SStreamTask**)taosHashGet(pMeta->pTasks, keys, sizeof(keys));
 
     int8_t prev = p->status.taskStatus;
     ASSERT(p->chkInfo.checkpointId < p->checkpointingId && p->checkpointingId == checkpointId);

source/libs/stream/src/streamTask.c

@@ -485,6 +485,12 @@ int32_t streamTaskRestart(SStreamTask* pTask, const char* pDir) {
   pTask->status.stage += 1;
 
   streamSetStatusNormal(pTask);
+
+  taosWLockLatch(&pTask->pMeta->lock);
+  streamMetaSaveTask(pTask->pMeta, pTask);
+  streamMetaCommit(pTask->pMeta);
+  taosWUnLockLatch(&pTask->pMeta->lock);
+
   qDebug("s-task:%s reset downstream status and inc stage to be:%d, status:%s, start to check downstream", id,
          pTask->status.stage, streamGetTaskStatusStr(pTask->status.taskStatus));