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https://issues.apache.org/jira/browse/KYLIN-2652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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kangkaisen updated KYLIN-2652:
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Attachment: KYLIN-2652.patch
This is the patch.
> Make KylinConfig threadsafe in CubeVisitService
> -----------------------------------------------
>
> Key: KYLIN-2652
> URL: https://issues.apache.org/jira/browse/KYLIN-2652
> Project: Kylin
> Issue Type: Bug
> Components: Storage - HBase
> Affects Versions: v2.0.0
> Reporter: kangkaisen
> Assignee: kangkaisen
> Attachments: KYLIN-2652.patch
>
>
> Currently, the KylinConfig in CubeVisitService is not threadsafe. This bug
> didn't expose until KYLIN-2195 updated the naming convention for kylin
> properties.
> When user upgrade to Kylin 2.0, If user set
> kylin.query.endpoint.compression.result=false and user only upgrade one
> QueryServer to 2.0 firstly. The config
> kylin.query.endpoint.compression.result will change to
> kylin.storage.hbase.endpoint-compress-result, So the CubeVisitService in
> HBase will get {{kylinConfig.getCompressionResult()}} true and is not
> consistent with the QueryServer config, which will make the query failed.
> The KylinConfig in CubeVisitService is not threadsafe, which will not only
> make the one QueryServer updated query failed, but also all JobServer and all
> QueryServer query failed.
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