eoc2015 commented on issue #1609:
URL: https://github.com/apache/rocketmq/issues/1609#issuecomment-783877821
一模一样的问题。4.8.0也是。主要是上次关闭broker时无法正常关闭导致的。
可以查看store.log日志，大概率是启动时加载日志文件异常了。目前也没找到解决办法，除非删除这个问题。哎。。。
`2021-02-23 12:48:53 ERROR AllocateMappedFileService - Failed to map file
/app/rocketmq/store/commitlog-am/00000000001073741824
java.io.IOException: Map failed
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:940)
~[na:1.8.0_162]
at org.apache.rocketmq.store.MappedFile.init(MappedFile.java:162)
[rocketmq-store-4.8.0.jar:4.8.0]
at org.apache.rocketmq.store.MappedFile.<init>(MappedFile.java:72)
[rocketmq-store-4.8.0.jar:4.8.0]
at
org.apache.rocketmq.store.AllocateMappedFileService.mmapOperation(AllocateMappedFileService.java:176)
[rocketmq-store-4.8.0.jar:4.8.0]
at
org.apache.rocketmq.store.AllocateMappedFileService.run(AllocateMappedFileService.java:137)
[rocketmq-store-4.8.0.jar:4.8.0]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_162]
Caused by: java.lang.OutOfMemoryError: Map failed
at sun.nio.ch.FileChannelImpl.map0(Native Method) ~[na:1.8.0_162]
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:937)
~[na:1.8.0_162]
... 5 common frames omitted`
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