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https://issues.apache.org/jira/browse/KYLIN-5556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guangyuan Feng reassigned KYLIN-5556:
-------------------------------------
Assignee: Guangyuan Feng
> A large amount of tables to be loaded from datasources in a once request will
> dramatically decrease the performance of querying and cleaning operations
> --------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KYLIN-5556
> URL: https://issues.apache.org/jira/browse/KYLIN-5556
> Project: Kylin
> Issue Type: Improvement
> Components: Modeling
> Affects Versions: 5.0-alpha
> Reporter: Guangyuan Feng
> Assignee: Guangyuan Feng
> Priority: Major
> Fix For: 5.0-beta
>
>
> Currently `TableExtService#loadDbTables` method will calling Spark to load
> all the tables in that datasource, without limit the number of tables to be
> returned. If too many tables loaded, it will dramatically decrease the
> performance of querying and cleaning operations.
> So it will be great that Kylin supplies a similar method with a threshold,
> say 1000, to limit the most amount of the tables to be returned in a once
> request.
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