sollhui opened a new pull request, #63654:
URL: https://github.com/apache/doris/pull/63654
### What problem does this PR solve?
Problem Summary:
Routine load lag was refreshed mainly when task scheduling needed to recheck
latest offsets after consuming the cached end offset. If producers continued
appending data while the job was running, the cached latest offsets could
become stale, so the reported routine load lag was not real-time enough.
This PR refreshes routine load lag cache during `RoutineLoadScheduler`
rounds. The metric path still only reads in-memory state and does not call
Kafka directly.
For routine load jobs, the latest offset cache is refreshed for current
progress partitions. Concurrent updates from job scheduling and task scheduling
are handled with monotonic atomic max updates, so latest offsets do not
regress. Kafka metadata requests also use snapshots of broker/topic/converted
properties.
### 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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