jieguangzhou commented on code in PR #13103:
URL:
https://github.com/apache/dolphinscheduler/pull/13103#discussion_r1040609249
##########
dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/runner/WorkflowExecuteRunnable.java:
##########
@@ -2045,6 +2046,74 @@ private void setGlobalParamIfCommanded(ProcessDefinition
processDefinition, Map<
}
}
+ /**
+ * clear related data if command of process instance is EXECUTE_TASK
+ * 1. find all task code from sub dag (only contains related task)
+ * 2. set the flag of tasks to Flag.NO
+ * 3. clear varPool data from re-execute task instance in process instance
+ * 4. remove related task instance from taskInstanceMap, completeTaskMap,
validTaskMap
+ *
+ * @return task instance
+ */
+ private void clearDataIfExecuteTask() {
+ // only clear data if command is EXECUTE_TASK
+ if
(!processInstance.getCommandType().equals(CommandType.EXECUTE_TASK)) {
+ return;
+ }
+
+ // Records the key of varPool data to be removed
+ Set<String> taskCodesString = dag.getAllNodesList();
+
+ List<TaskInstance> removeTaskInstances = new ArrayList<>();
+
+ for (String taskCodeString : taskCodesString) {
+ long taskCode = Long.parseLong(taskCodeString);
+ TaskInstance taskInstance;
+ if (validTaskMap.containsKey(taskCode)) {
+ taskInstance = taskInstanceMap.get(validTaskMap.get(taskCode));
+ } else {
+ taskInstance =
taskInstanceDao.findTaskByInstanceIdAndCode(processInstance.getId(), taskCode);
+ }
+ if (taskInstance == null) {
+ continue;
Review Comment:
This is not an anomaly. If some task failed in the last execution of the
workflow, the downstream task will not create a task instance. And then,
`taskInstance` is null, we just ignore them.
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