liaoxin01 opened a new pull request, #55326:
URL: https://github.com/apache/doris/pull/55326
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
Group Commit Stream Load Forward Mode in Cloud Environment:
Problem:
Group commit requires that requests for the same table be sent to the same
BE node
to achieve better batching efficiency. However, in cloud mode with Load
Balancer (LB),
the LB randomly selects a BE node for forwarding, which breaks the group
commit strategy
and reduces batching effectiveness.
Solution:
Implement a two-stage forwarding mechanism:
1. FE redirects to public/private endpoint (LB) as usual
2. BE performs a second forwarding to the actual target BE node that
handles the specific table
This ensures that all requests for the same table ultimately reach the same
BE node,
preserving the group commit batching strategy while still utilizing the LB
infrastructure.
### 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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