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https://issues.apache.org/jira/browse/PHOENIX-1270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Taylor reassigned PHOENIX-1270:
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Assignee: James Taylor
> Avoid retrieve metadata from server to gain performance
> -------------------------------------------------------
>
> Key: PHOENIX-1270
> URL: https://issues.apache.org/jira/browse/PHOENIX-1270
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 3.0.0
> Reporter: daniel meng
> Assignee: James Taylor
> Attachments: PHOENIX-1270.patch
>
>
> Now the SELECT or UPSERT(when autoCommit is TRUE) will need one extra RPC for
> retrieve metadata from RS. In some cases where metadata rarely changed and
> higher TPS is required, we should let the client have a choice to use cache
> directly for better performance. the attached patch do two :
> 1. enable metadata cache self refresh (switch by "phoenix.cache.autoRefresh")
> 2. client can use hint /\*+ALWAYS_USE_META_CACHE\*/ to force compiler to use
> cache frist
> thanks in advance for your advice
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