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https://issues.apache.org/jira/browse/KYLIN-1397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shaofeng SHI closed KYLIN-1397.
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Resolution: Fixed
This issue has been fixed I believe.
> Query result cached even when underly HTABLE scan failed
> --------------------------------------------------------
>
> Key: KYLIN-1397
> URL: https://issues.apache.org/jira/browse/KYLIN-1397
> Project: Kylin
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: v1.4.0
> Reporter: Su Ralph
> Assignee: Edward Zhang
>
> Query result cached even when underly HTABLE scan failed. When the HTABLE
> fixed, the query would still get the cached result.
> In my case, there is an Hbase table(one hung htable in all of 14 htables
> involved) issue happened when user issue an query. The query hungs for long
> time. Later, when the the htable hung issue fixed. User still get the empty
> result.
> But if user just simple change a query condition, the result would return
> correct result. The empty result fixed when kylin admin "Reload Metadata".
> This indicates that kylin query cache are *incorrectly build* and util admin
> "Reload Metadata" we don't have an way invalidate the cache.
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