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Posted to commits@rocketmq.apache.org by "lizhimins (via GitHub)" <gi...@apache.org> on 2025/08/21 06:35:57 UTC

[I] [Bug] Prevent premature offset commit before consumer record flush [rocketmq]

lizhimins opened a new issue, #9626:
URL: https://github.com/apache/rocketmq/issues/9626

   ### Before Creating the Bug Report
   
   - [x] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions).
   
   - [x] I have searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions)  of this repository and believe that this is not a duplicate.
   
   - [x] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.
   
   
   ### Runtime platform environment
   
   Linux 5.10
   
   ### RocketMQ version
   
   5.2-5.3.3
   
   ### JDK Version
   
   JDK11
   
   ### Describe the Bug
   
   It is a concurrency issue: when thread A tries to remove data from the cache, the records have not yet been flushed to disk. If thread B attempts to fetch the minimum offset from the cache and commit it at the same time, any unflushed records may be lost in the event of a crash.
   
   ### Steps to Reproduce
   
   It is a concurrency issue: when thread A tries to remove data from the cache, the records have not yet been flushed to disk. If thread B attempts to fetch the minimum offset from the cache and commit it at the same time, any unflushed records may be lost in the event of a crash.
   
   ### What Did You Expect to See?
   
   Prevent premature offset commit before consumer record flush
   
   ### What Did You See Instead?
   
   consumer record flush then commit min offset
   
   ### Additional Context
   
   _No response_


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Re: [I] [Bug] Prevent premature offset commit before consumer record flush [rocketmq]

Posted by "lollipopjin (via GitHub)" <gi...@apache.org>.
lollipopjin closed issue #9626: [Bug] Prevent premature offset commit before consumer record flush
URL: https://github.com/apache/rocketmq/issues/9626


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