jeffchanjunwei opened a new issue #2784: URL: https://github.com/apache/rocketmq/issues/2784
The issue tracker is **ONLY** used for bug report(feature request need to follow [RIP process](https://github.com/apache/rocketmq/wiki/RocketMQ-Improvement-Proposal)). Keep in mind, please check whether there is an existing same report before your raise a new one. Alternately (especially if your communication is not a bug report), you can send mail to our [mailing lists](http://rocketmq.apache.org/about/contact/). We welcome any friendly suggestions, bug fixes, collaboration and other improvements. Please ensure that your bug report is clear and that it is complete. Otherwise, we may be unable to understand it or to reproduce it, either of which would prevent us from fixing the bug. We strongly recommend the report(bug report or feature request) could include some hints as the following: **BUG REPORT** 1. Please describe the issue you observed: one of the slave broker print the the follow error in storeerror.log ``` ReputMessageService - Offset for /home/rocketmq/data/master/store/commitlog/00000000813896302592 not matched. Request offset: 519462681834, index: -275, mappedFileSize: 1073741824, mappedFiles count: 13 ReputMessageService - findMappedFileByOffset failure. java.lang.ArrayIndexOutOfBoundsException: -275 at java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:387) ~[na:1.8.0_45] at java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:396) ~[na:1.8.0_45] at org.apache.rocketmq.store.MappedFileQueue.findMappedFileByOffset(MappedFileQueue.java:478) ~[rocketmq-store-4.2.0.jar:4.2.0] at org.apache.rocketmq.store.CommitLog.getData(CommitLog.java:148) [rocketmq-store-4.2.0.jar:4.2.0] at org.apache.rocketmq.store.CommitLog.getData(CommitLog.java:143) [rocketmq-store-4.2.0.jar:4.2.0] at org.apache.rocketmq.store.DefaultMessageStore$ReputMessageService.doReput(DefaultMessageStore.java:1751) [rocketmq-store-4.2.0.jar:4.2.0] at org.apache.rocketmq.store.DefaultMessageStore$ReputMessageService.run(DefaultMessageStore.java:1818) [rocketmq-store-4.2.0.jar:4.2.0] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45] ``` 2. Please tell us about your environment: version: 4.2.0 cluster info: 4 async_master, 4 slave, async flush disk mode -- 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. For queries about this service, please contact Infrastructure at: [email protected]
