EricJoy2048 commented on code in PR #2527:
URL:
https://github.com/apache/incubator-seatunnel/pull/2527#discussion_r956529060
##########
seatunnel-engine/seatunnel-engine-server/src/main/java/org/apache/seatunnel/engine/server/task/operation/source/RequestSplitOperation.java:
##########
@@ -46,10 +48,15 @@ public RequestSplitOperation(TaskLocation taskID,
TaskLocation enumeratorTaskID)
@Override
public void run() throws Exception {
SeaTunnelServer server = getService();
- SourceSplitEnumeratorTask<?> task =
+
+ RetryUtils.retryWithException(() -> {
+ SourceSplitEnumeratorTask<?> task =
server.getTaskExecutionService().getExecutionContext(enumeratorTaskID.getTaskGroupID())
- .getTaskGroup().getTask(enumeratorTaskID.getTaskID());
- task.requestSplit(taskID.getTaskID());
+ .getTaskGroup().getTask(enumeratorTaskID.getTaskID());
+ task.requestSplit(taskID.getTaskID());
+ return null;
+ }, new RetryUtils.RetryMaterial(Constant.OPERATION_RETRY_TIME, true,
Review Comment:
> What causes a NullPointerException?
Because
```
SourceSplitEnumeratorTask<?> task =
server.getTaskExecutionService().getExecutionContext(enumeratorTaskID.getTaskGroupID())
.getTaskGroup().getTask(enumeratorTaskID.getTaskID());
```
May cause a NullPointException if the `EnumeratorTask` startup has not been
completed.
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