[Fix-9975] The selected task instance was recreated when the Master service fail… (#9976)

WangJPLeo · web-flow · commit dbdbfeaeee4b · 2022-05-12T16:31:53.000+08:00
* The selected task instance was recreated when the Master service failed over.

* Returns the expression result directly.

* Use Recovery to determine whether to use the old task instance.
diff --git a/dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkflowExecuteThread.java b/dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkflowExecuteThread.java
@@ -1960,6 +1960,9 @@ private boolean checkTaskQueue() {
     private boolean isNewProcessInstance() {
         if (ExecutionStatus.RUNNING_EXECUTION == processInstance.getState() && processInstance.getRunTimes() == 1) {
             return true;
+        } else if (processInstance.getRecovery().equals(Flag.YES)) {
+            // host is empty use old task instance
+            return false;
         } else {
             return false;
         }
