wenzhenghu opened a new pull request, #65126:
URL: https://github.com/apache/doris/pull/65126
### What problem does this PR solve?
Issue Number: N/A
Related PR: N/A
Problem Summary:
This PR refactors the external metadata cache to use MetaCacheEntry-based
publication and invalidation, and follows up with fixes from review and
validation. It aligns the negative lookup semantics across init and replay
paths, keeps replay lookup non-blocking, preserves the expected lower-case mode
0/1/2 behavior, and adds regression and manual validation coverage for refresh
non-blocking and mutable name miss refresh scenarios.
### Release note
Improve consistency and validation coverage for external metadata cache
refresh and name lookup behavior.
### Check List (For Author)
- Test
- [ ] Regression test
- [x] Unit Test
- [x] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor or code format and no logic has been
changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason
Manual test details:
- Validate mutable name miss refresh semantics on a real Doris instance with
`tools/manual_external_meta_cache_regression/verify_name_miss_refresh_mutable.sh`
- Validate tableNames refresh non-blocking on a real Doris instance with
`tools/manual_external_meta_cache_regression/verify_table_names_refresh_non_blocking.sh`
- Validate schema refresh non-blocking on a real Doris instance with
`tools/manual_external_meta_cache_regression/verify_schema_refresh_non_blocking.sh`
- Validate lower-case mode 0, 1 and 2 SQL paths on a real Doris instance
Unit test details:
- `./run-fe-ut.sh --run
org.apache.doris.datasource.metacache.MetaCacheEntryTest`
- Behavior changed:
- [ ] No.
- [x] Yes. External metadata cache name lookup, invalidation
coordination, and refresh behavior are aligned with the refactor design and
follow-up fixes.
- Does this need documentation?
- [x] No.
- [ ] Yes.
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label
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