liaoxin01 opened a new pull request, #65701:
URL: https://github.com/apache/doris/pull/65701
### What problem does this PR solve?
Issue Number: DORIS-27148
When a packed small file is written to the file cache,
`do_write_to_file_cache()` did not set `ctx.tablet_id`, so the cache block meta
was persisted with `tablet_id=0`. As a result:
1. `information_schema.file_cache_info` shows these blocks under
`tablet_id=0`, and they cannot be queried by the real tablet id.
2. TTL blocks are not registered to `BlockFileCacheTtlMgr` (registration is
skipped when `context.tablet_id == 0`), so the TTL expiration check cannot
evict them by tablet.
This was introduced when picking #59892 to this branch: the pick dropped the
`ctx.tablet_id = tablet_id;` line that exists on master. This PR restores it,
aligning with master.
Note: existing cache meta already persisted with `tablet_id=0` will not be
rewritten automatically; it is corrected only when the block is evicted and
cached again.
### Release note
Fix that file cache blocks written via the packed-file path were recorded
with tablet_id=0 in information_schema.file_cache_info.
### Check List (For Author)
- Test
- [x] Manual test (add detailed scripts or steps below)
- Verified per DORIS-27148: write small segments that go through the
packed-file path, then query `information_schema.file_cache_info` by the real
tablet ids and confirm blocks are no longer recorded under tablet_id=0.
### 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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