From dbdbfeaeee4b6aaaa738ef642a908f700f0cb9bc Mon Sep 17 00:00:00 2001
From: WangJPLeo <103574007+WangJPLeo@users.noreply.github.com>
Date: Thu, 12 May 2022 16:31:53 +0800
Subject: [PATCH] =?UTF-8?q?[Fix-9975]=20The=20selected=20task=20instance?=
 =?UTF-8?q?=20was=20recreated=20when=20the=20Master=20service=20fail?=
 =?UTF-8?q?=E2=80=A6=20(#9976)?=
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* 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.
---
 .../server/master/runner/WorkflowExecuteThread.java            | 3 +++
 1 file changed, 3 insertions(+)

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
index 98556dc0f0..3b7b5511ae 100644
--- 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 @@ public class WorkflowExecuteThread {
     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;
         }