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[Bug] PushConsumer may cause consumption duplication in some scenarios due to concurrency issues. #479

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humkum opened this issue Dec 4, 2024 · 0 comments · May be fixed by #480
Open

[Bug] PushConsumer may cause consumption duplication in some scenarios due to concurrency issues. #479

humkum opened this issue Dec 4, 2024 · 0 comments · May be fixed by #480

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@humkum
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humkum commented Dec 4, 2024 •
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BUG REPORT

  1. Please describe the issue you observed:
  • What did you do (The steps to reproduce)?
  1. Start a consumer client c1.
  2. Start another consumer client c2 and immediately shut it down.
  3. Observe the consumption duplication of the consumer client c1.
    image
  • What did you expect to see?
    There's no consumption duplication.
  • What did you see instead?
    The consumer client c1 duplicate consume the same message many times at the same timestamp.

image

  1. Please tell us about your environment:
  • What is your OS?
    Ubuntu & CentOS
  • What is your client version?
    latest
  • What is your RocketMQ version?
    5.9
  1. Other information (e.g. detailed explanation, logs, related issues, suggestions on how to fix, etc):
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[ISSUE #479]fix: duplicate pulls due to concurrency issues in rebalance. humkum/rocketmq-client-cpp
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@humkum