pan3793 opened a new pull request, #5220:
URL: https://github.com/apache/kyuubi/pull/5220
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### _Why are the changes needed?_
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This PR changes the block phase of the batch submitter
- before: from PENDING until TERMINATED
- after: from PENDING until RUNNING or TERMINATED
Usually, we submit Spark batch applications in cluster mode with
waitAppCompletion disabled, after Spark applications go into RUNNING or
TERMINATED stage, the `spark-submit` process exits and the batch session does
not occupy too many resources.
In practice, we use 16 threads for Kyuubi instance with 8C32G. A larger
concurrency may result in CPU resources being exhausted and `spark-submit`
process hanging.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including
negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [ ] [Run
test](https://kyuubi.readthedocs.io/en/master/contributing/code/testing.html#running-tests)
locally before make a pull request
### _Was this patch authored or co-authored using generative AI tooling?_
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