luwei16 opened a new pull request, #67351:
URL: https://github.com/apache/doris/pull/67351
### What problem does this PR solve?
Issue Number: None
Related PR: None
Problem Summary: During merge-on-write cloud schema changes, the
delete-bitmap temporary tablet copied stale rowset metadata from the real
shadow tablet. Its version tracker could select a compacted stale edge that was
absent from the active rowset map, causing schema change to fail with a rowset
capture error under concurrent writes and compaction. Clear only the copied
stale rowset metadata before constructing the temporary tablet so its tracker
is built exclusively from active schema-change output and incremental rowsets,
without altering the source tablet or shared delete-bitmap cache.
### Release note
Fix cloud merge-on-write schema changes that could fail during concurrent
writes and compaction.
### Check List (For Author)
- Test: Unit Test
- `./run-be-ut.sh --run --filter=CloudSchemaChangeJobTest.* -j 48`
- `./build.sh --be -j 48`
- Behavior changed: Yes. Cloud schema change temporary tablets no longer
inherit stale rowset metadata.
- Does this need documentation: No
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