lizhimins opened a new issue, #9811: URL: https://github.com/apache/rocketmq/issues/9811
### 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 Fixed the issue of excessive loop iterations in reput service <img width="2518" height="1526" alt="Image" src="https://github.com/user-attachments/assets/7173452c-a84f-4644-ae11-7fb9c0dbf805"; /> `---ts=2025-11-05 17:07:47;thread_name=ReputMessageService;id=4e;is_daemon=false;priority=5;TCCL=jdk.internal.loader.ClassLoaders$AppClassLoader@45283ce2 `---[8.730036ms] org.apache.rocketmq.store.DefaultMessageStore$ReputMessageService:doReput() +---[0.01% 0.001191ms ] org.apache.rocketmq.store.CommitLog:getMinOffset() #2477 +---[0.02% 0.001359ms ] org.apache.rocketmq.store.DefaultMessageStore$ReputMessageService:isCommitLogAvailable() #2482 +---[8.08% min=4.19E-4ms,max=0.002922ms,total=0.705715ms,count=1481] org.apache.rocketmq.store.CommitLog:getData() #2488 +---[6.54% min=3.48E-4ms,max=0.007026ms,total=0.570929ms,count=1480] org.apache.rocketmq.store.SelectMappedBufferResult:getStartOffset() #2495 +---[6.75% min=3.4E-4ms,max=0.001922ms,total=0.58887ms,count=1579] org.apache.rocketmq.store.SelectMappedBufferResult:getSize() #2497 +---[8.08% min=3.8E-4ms,max=0.008093ms,total=0.705551ms,count=1576] org.apache.rocketmq.store.DefaultMessageStore$ReputMessageService:getReputEndOffset() #2497 +---[0.51% min=3.82E-4ms,max=7.31E-4ms,total=0.044352ms,count=99] org.apache.rocketmq.store.SelectMappedBufferResult:getByteBuffer() #2499 +---[2.22% min=0.001358ms,max=0.00933ms,total=0.194009ms,count=99] org.apache.rocketmq.store.CommitLog:checkMessageAndReturnSize() #2499 +---[0.49% min=3.53E-4ms,max=0.001867ms,total=0.042422ms,count=99] org.apache.rocketmq.store.DispatchRequest:getBufferSize() #2500 +---[0.48% min=3.41E-4ms,max=0.001936ms,total=0.042172ms,count=99] org.apache.rocketmq.store.DispatchRequest:getMsgSize() #2500 +---[0.56% min=3.85E-4ms,max=0.0028ms,total=0.048469ms,count=99] org.apache.rocketmq.store.DefaultMessageStore$ReputMessageService:getReputEndOffset() #2502 +---[0.45% min=3.34E-4ms,max=7.2E-4ms,total=0.039158ms,count=99] org.apache.rocketmq.store.DispatchRequest:isSuccess() #2507 +---[0.45% min=3.45E-4ms,max=6.8E-4ms,total=0.039703ms,count=99] org.apache.rocketmq.store.DispatchRequest:getStoreTimestamp() #2509 +---[6.98% min=0.00362ms,max=0.017183ms,total=0.608921ms,count=99] org.apache.rocketmq.store.DefaultMessageStore:doDispatch() #2510 +---[0.60% min=4.3E-4ms,max=0.002076ms,total=0.052078ms,count=99] org.apache.rocketmq.store.DefaultMessageStore:access$600() #2512 +---[1.78% min=7.38E-4ms,max=0.024736ms,total=0.15509ms,count=99] org.apache.rocketmq.store.DefaultMessageStore:notifyMessageArriveIfNecessary() #2513 +---[0.58% min=4.41E-4ms,max=8.89E-4ms,total=0.050776ms,count=99] org.apache.rocketmq.store.DefaultMessageStore:getMessageStoreConfig() #2518 +---[0.53% min=3.78E-4ms,max=0.002337ms,total=0.046654ms,count=99] org.apache.rocketmq.store.config.MessageStoreConfig:isDuplicationEnable() #2518 +---[0.56% min=4.29E-4ms,max=7.53E-4ms,total=0.04849ms,count=99] org.apache.rocketmq.store.DefaultMessageStore:getMessageStoreConfig() #2519 +---[0.63% min=4.1E-4ms,max=0.007912ms,total=0.054987ms,count=99] org.apache.rocketmq.store.config.MessageStoreConfig:getBrokerRole() #2519 `---[6.78% min=3.58E-4ms,max=0.001167ms,total=0.592063ms,count=1480] org.apache.rocketmq.store.SelectMappedBufferResult:release() #2573 当前分支 <img width="2638" height="1426" alt="Image" src="https://github.com/user-attachments/assets/2d977879-5746-4d59-b820-07a6320a3a3f"; /> 修复结果 <img width="2640" height="1426" alt="Image" src="https://github.com/user-attachments/assets/3db30f0d-10c2-4685-8be0-cd213726b1f4"; /> ### RocketMQ version [5.3.2, 5.3.3] ### JDK Version JDK17 ### Describe the Bug The failure to update isCommitLogAvailable in a timely manner resulted in an excessive number of loop iterations. ### Steps to Reproduce A single broker process writes message at 10,000 TPS ### What Did You Expect to See? The return thread is causing very high CPU utilization. ### What Did You See Instead? Low CPU utilization ### 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
