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Posted to issues@kylin.apache.org by "ShengJun Zheng (Jira)" <ji...@apache.org> on 2021/02/07 02:14:00 UTC

[jira] [Updated] (KYLIN-4903) cache parent datasource to accelerate next layer's cuboid building

     [ https://issues.apache.org/jira/browse/KYLIN-4903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ShengJun Zheng updated KYLIN-4903:
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    Description: In Kylin V4, parent datasource is not cached in next layer's cuboid building, causing repeated HDFS files read. Cacheing parent datasource in memory will in enhance 20~30% build performance in our case.  (was: Parent datasource is not cached in next layer's cuboid building, causing repeated HDFS files read. Cacheing parent datasource in memory will in enhance 20~30% build performance in our case.)

> cache parent datasource to accelerate next layer's cuboid building
> ------------------------------------------------------------------
>
>                 Key: KYLIN-4903
>                 URL: https://issues.apache.org/jira/browse/KYLIN-4903
>             Project: Kylin
>          Issue Type: Improvement
>            Reporter: ShengJun Zheng
>            Priority: Major
>
> In Kylin V4, parent datasource is not cached in next layer's cuboid building, causing repeated HDFS files read. Cacheing parent datasource in memory will in enhance 20~30% build performance in our case.



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