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https://issues.apache.org/jira/browse/KYLIN-1843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Billy(Yiming) Liu closed KYLIN-1843.
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> LRU cache for in memory dimensions
> ----------------------------------
>
> Key: KYLIN-1843
> URL: https://issues.apache.org/jira/browse/KYLIN-1843
> Project: Kylin
> Issue Type: Improvement
> Components: Query Engine
> Affects Versions: v1.2, v1.5.2
> Reporter: Abhilash L L
> Assignee: Billy(Yiming) Liu
> Fix For: v1.5.3
>
> Attachments: KYLIN-1843.patch
>
>
> The dimensions are kept in memory to fill up the result set.
> Now as and when more cubes are created, all the dimensions keep accumulating
> in the memory
> This means tomcat memory requirements always keep increasing
> It would help if less frequently used dimensions are swapped out to keep
> memory in check.
> We can have a Cache Manager which gets to decide which dimensions are kept in
> memory and brings in as and when its required. The size of the cache should
> be tuneable.
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