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https://issues.apache.org/jira/browse/KYLIN-770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ZhouQianhao resolved KYLIN-770.
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Resolution: Fixed
> optimize memory usage for GTSimpleMemStore GTAggregationScanner
> ---------------------------------------------------------------
>
> Key: KYLIN-770
> URL: https://issues.apache.org/jira/browse/KYLIN-770
> Project: Kylin
> Issue Type: Improvement
> Components: Storage - HBase
> Affects Versions: v0.8.1
> Reporter: ZhouQianhao
> Assignee: ZhouQianhao
> Fix For: v0.9.1
>
>
> currently GTComboStore switch between memory and local disk according to the
> memory usage.
> reduce the size of memory store and lead to less disk io, which will
> significantly reduce the time cost of mapper phase of cube building
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