Jing Zhang created HUDI-7626:
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Summary: UserGroupInformation lost in the new thread of timeline
service threadpool
Key: HUDI-7626
URL: https://issues.apache.org/jira/browse/HUDI-7626
Project: Apache Hudi
Issue Type: Bug
Reporter: Jing Zhang
<img width="1696" alt="image"
src="https://github.com/apache/hudi/assets/1525333/fef39f4b-89c9-44be-b034-ae58c2615764";>
The error happened when each append task initialized.
<img width="1072" alt="image"
src="https://github.com/apache/hudi/assets/1525333/5c96940c-f187-4363-8f70-1c6f3888347f";>
And using embed timeline server by default. so here
`RemoteHoodieTableFileSystemView` would send `LATEST_PARTITION_SLICE_URL`
request to the driver. After the handler thread in thread pool of timeline
service in driver received this request, it would call the `sliceHandler` to
`getLatestFileSlice`. And it would create partition path dir if it not exists
<img width="970" alt="image"
src="https://github.com/apache/hudi/assets/1525333/dc83d8eb-93c3-45e1-857f-bcb2f78dea52";>
<img width="670" alt="image"
src="https://github.com/apache/hudi/assets/1525333/0c618e03-32d0-4bf9-b28b-eed4004ddbb0";>
I add some logs in the main thread and the new thread of the timeline service.
And found that the user group information in the main thread of driver is
right, but that of new thread is wrong.
<img width="1199" alt="image"
src="https://github.com/apache/hudi/assets/1525333/f9aa4f2d-7911-46ba-99fa-8a256885df8c";>
<img width="776" alt="image"
src="https://github.com/apache/hudi/assets/1525333/17a575d4-ed76-43a6-a5d6-71918a6274af";>
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