shuke987 opened a new pull request, #60720:
URL: https://github.com/apache/doris/pull/60720
### What problem does this PR solve?
publishExecutors is a static field, but the constructor appends new thread
pools on every invocation without checking if they already exist.
The constructor is called each time a new Env instance is created, which
happens periodically during Env checkpoint/journal replay (the checkpoint
thread creates a new Env to replay the journal). Each call appends
publish_thread_pool_num (default 128) pools to the static list, causing
unbounded growth.
Heap dump analysis (branch-4.0, 12 rounds of p0 regression) confirmed:
ThreadPoolExecutor: R1: 2,506 → R12: 12,236 (+388.3%), 11/11 strictly
increasing
dbExecutors backing array grew to Object[11070] (~86 Env replays × 128 pools)
Each leaked pool retains threads, locks, and condition queues
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### 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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