linrrzqqq opened a new pull request, #69241:
URL: https://github.com/apache/doris/pull/69241
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
Refactor Python UDF process scheduling to maintain an independent process
pool for each function id. Each function uses its own fixed pool, simplifying
process allocation, package isolation and cleanup.
As part of the refactoring, add two function properties for Python UDF, UDAF
and UDTF:
- `pool_size`: maximum number of Python processes per function on each BE,
defaulting to `3`.
- `auto_suspend`: idle timeout in seconds, defaulting to `-1` to keep
processes resident. Idle pools are reclaimed during the 30-second monitor scan
and recreated on the next invocation.
Improve pool lifecycle management:
- Retry failed DROP cleanup tasks.
- Clean up function pools when databases are permanently removed.
- Keep processes and package files alive while existing clients still use
them, and retain memory accounting until those processes exit.
- Prevent delayed requests and repeated cleanup from deleting package files
still used by active queries.
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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