CalvinKirs opened a new pull request, #25074:
URL: https://github.com/apache/doris/pull/25074
### error log
When the task has not yet started scheduling, there is no transaction status
at this time. Therefore the query will cause an NPE exception
```
2023-10-07 13:52:16,883 WARN (mysql-nio-pool-3|1310)
[StmtExecutor.executeByLegacy():807] execute Exception. stmt[1368,
fc075cfd62aa4459-a8014ca6b5f574fa]
java.lang.NullPointerException: null
at
org.apache.doris.load.routineload.RoutineLoadJob.lambda$getTasksShowInfo$6(RoutineLoadJob.java:1452)
~[classes/:?]
at java.util.ArrayList.forEach(ArrayList.java:1259) ~[?:1.8.0_362]
at
org.apache.doris.load.routineload.RoutineLoadJob.getTasksShowInfo(RoutineLoadJob.java:1450)
~[classes/:?]
at
org.apache.doris.qe.ShowExecutor.handleShowRoutineLoadTask(ShowExecutor.java:1605)
~[classes/:?]
at org.apache.doris.qe.ShowExecutor.execute(ShowExecutor.java:316)
~[classes/:?]
at org.apache.doris.qe.StmtExecutor.handleShow(StmtExecutor.java:2208)
~[classes/:?]
at
org.apache.doris.qe.StmtExecutor.executeByLegacy(StmtExecutor.java:775)
~[classes/:?]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:468)
~[classes/:?]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:438)
~[classes/:?]
at
org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:353)
~[classes/:?]
at
org.apache.doris.qe.ConnectProcessor.dispatch(ConnectProcessor.java:501)
~[classes/:?]
at
org.apache.doris.qe.ConnectProcessor.processOnce(ConnectProcessor.java:752)
~[classes/:?]
at
org.apache.doris.mysql.ReadListener.lambda$handleEvent$0(ReadListener.java:52)
~[classes/:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
~[?:1.8.0_362]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
~[?:1.8.0_362]
```
### Changes
When the task has not yet started scheduling, that is, when txn_id is -1,
the transaction status is set to null
### Test
<img width="1096" alt="image"
src="https://github.com/apache/doris/assets/16631152/55d6d97f-c8df-4b8b-82ea-a9661387aefe";>
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