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https://issues.apache.org/jira/browse/GRIFFIN-194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16642921#comment-16642921
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William Guo commented on GRIFFIN-194:
-------------------------------------

Cool, we might can increase performance by limit network roundtrip.

> [service] Hive API improvement
> ------------------------------
>
>                 Key: GRIFFIN-194
>                 URL: https://issues.apache.org/jira/browse/GRIFFIN-194
>             Project: Griffin (Incubating)
>          Issue Type: Sub-task
>            Reporter: Nikolay Sokolov
>            Priority: Minor
>
> Purpose is mainly to support GRIFFIN-195 with single request to get table 
> list information, while avoiding transferring all table metadata and making 
> lots of metastore requests.
> Hive API provides following relevant APIs right now:
> * listing DBs
> * getting all table names in DB
> * listing all table _objects_ in all _dbs_
> What's seems to be missing, is API call for all table names in all DBs (as 
> middle ground between n+1 API requests and 1 API request with huge payload 
> and n*m+1 metastore requests on backend).
> This api request should take no parameters, and return Map<String, 
> List<String>> in response.
> Proposed API endpoint: TBD



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