[jira] [Created] (ROCKETMQ-190) A question mapperFile unmap . MQ memory use growing , mem use only release at 04:00 AM delete file ,unmap the logFile

[zhaoziyan (JIRA)]

zhaoziyan created ROCKETMQ-190:
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             Summary: A question mapperFile unmap .  MQ memory use growing  , 
mem use only release at 04:00 AM delete file ,unmap the logFile 
                 Key: ROCKETMQ-190
                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-190
             Project: Apache RocketMQ
          Issue Type: Improvement
          Components: rocketmq-store
            Reporter: zhaoziyan
            Assignee: yukon
         Attachments: mqmem.png, unmap.png

MQ version is 3.4.6 
jdk 1.6 
I have look the 4.0.0 code . unmmap the  mapperFile ,the logic almost same.
this is the log and MQ mem use monitor 
The MQ use grow until 04:00 AM delete file 



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