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Posted to issues@kylin.apache.org by "Shaofeng SHI (JIRA)" <ji...@apache.org> on 2018/10/24 07:09:00 UTC
[jira] [Updated] (KYLIN-3646) Add instruction about rowkey sequence
in "Advanced setting" page
[ https://issues.apache.org/jira/browse/KYLIN-3646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shaofeng SHI updated KYLIN-3646:
--------------------------------
Fix Version/s: v2.6.0
> Add instruction about rowkey sequence in "Advanced setting" page
> ----------------------------------------------------------------
>
> Key: KYLIN-3646
> URL: https://issues.apache.org/jira/browse/KYLIN-3646
> Project: Kylin
> Issue Type: Improvement
> Components: Web
> Reporter: Shaofeng SHI
> Priority: Major
> Fix For: v2.6.0
>
>
> The position of dimension in rowkey is important for performance (both build and query); But this message is not clear for a normal user. We'd better add instruction on the web GUI, so that user knows to adjust it by some rule.
>
> In the rowkey part, adding:
> "Important: Dimension's positioin on HBase rowkey is critical for performance. You can drag and drop to adjust the sequence. To be simple, filtering dimension before non-filtering dimension, and high cardinality dimension before low cardinality dimension."
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