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https://issues.apache.org/jira/browse/BOOKKEEPER-659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sijie Guo updated BOOKKEEPER-659:
---------------------------------

    Attachment: BOOKKEEPER-659.diff

the useCount issue is somehow related to grabCleanPage. we should set lep to 
null each iteration. otherwise, it might return a lep without calling #usePage.

attach the new patch.

> LRU page management in ledger cache.
> ------------------------------------
>
>                 Key: BOOKKEEPER-659
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-659
>             Project: Bookkeeper
>          Issue Type: Sub-task
>          Components: bookkeeper-server
>            Reporter: Sijie Guo
>            Assignee: Robin Dhamankar
>             Fix For: 4.3.0
>
>         Attachments: 
> 0001-BOOKKEEPER-659-LRU-page-management-in-ledger-cache.patch, 
> BOOKKEEPER-659.diff, BOOKKEEPER-659.diff, 
> TEST-org.apache.bookkeeper.replication.AuditorPeriodicCheckTest.xml
>
>
> better ledger page management.



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