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http://jira.codehaus.org/browse/MERCURY-123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=177023#action_177023
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Oleg Gusakov commented on MERCURY-123:
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experimenting with LRU (now coded as MRU) cache in VirtualRepositoryReader. 
This code is disabled by default in cacheVersions( MetadataResults res )

> add evict() call to the metadata cache
> --------------------------------------
>
>                 Key: MERCURY-123
>                 URL: http://jira.codehaus.org/browse/MERCURY-123
>             Project: Mercury
>          Issue Type: Sub-task
>            Reporter: Oleg Gusakov
>
> Currently metadata cache is written to accommodate one-time usage pattern - 
> a'la Maven build, and does not take care of long running use case - the cache 
> is not limited and can consume a lot of memory.
> Need to introduce a true session-like behavior via LRU strategy and evict() 
> call

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