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https://issues.apache.org/jira/browse/AMBARI-25669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17418391#comment-17418391
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Yao Lei commented on AMBARI-25669:
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> The usage rate of Ambari Old memory is almost 100%, and cannot return to
> normal levels
> --------------------------------------------------------------------------------------
>
> Key: AMBARI-25669
> URL: https://issues.apache.org/jira/browse/AMBARI-25669
> Project: Ambari
> Issue Type: Bug
> Components: ambari-sever
> Affects Versions: 2.7.3
> Environment: os type： linux
> Node env： 32cores 64GB
> three-nodes cluster
> ambari version:2.7.3
> Ambari memory： -Xmx8192m -Xms8192m
> Reporter: guluo
> Priority: Major
>
> A large number of HTTP requests to access Ambari over a period of time，the
> usage rate of Ambari Old memory is almost 100%. When stopping HTTP requests，
> the useage memory cannot return to normal levels.
>
> I executed command： jmap -histo:live | grep Session, and found the number of
> Session instances is close to 20000，and maintain this level for a long
> time（sometim more than one day）. Under normal circumstances, the number of
> this object will not exceed 2000
>
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