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KAFKA-13971:Atomicity violations caused by improper usage of ConcurrentHashMap
ensure thread safe
Committer Checklist (excluded from commit message)
- [x] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [x] Verify documentation (including upgrade notes)
@hachikuji can you help me review this PR?
We should check if this code is used in a concurrent context. Will leave it to @C0urante.