wangshaojie4039 opened a new issue, #9069: URL: https://github.com/apache/rocketmq/issues/9069
### 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 ### RocketMQ version devlop|5.3.x ### JDK Version jdk1.8 ### Describe the Bug public CompletableFuture<Void> commitAsync(FlatFileInterface flatFile) { return flatFile.commitAsync().thenAcceptAsync(success -> { if (success) { if (storeConfig.isMessageIndexEnable()) { flatFile.getDispatchRequestList().forEach( request -> constructIndexFile(flatFile.getTopicId(), request)); } flatFile.release(); } }, storeExecutor.bufferCommitExecutor); } ------------------------------------------- I found this issue while conducting stress testing on tieredstore. When the TPS reached 100000, the Messenger Dispatcher # ConstructIndexFile call threw an exception ”java.util. ConcurrentModificationException“ ### Steps to Reproduce Tested again, it still appears, as shown in the screenshot below ### What Did You Expect to See? Index construction without errors ### What Did You See Instead? -- ### Additional Context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@rocketmq.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
