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From "Florin Diaconeasa (JIRA)" <>
Subject [jira] Commented: (HIVE-80) Add testcases for concurrent query execution
Date Thu, 27 Jan 2011 15:40:50 GMT


Florin Diaconeasa commented on HIVE-80:


I'm thinking about writing a Hive client in order to handle some of the queries that i wish
to run and the dependencies between them.

>From what i read on the Hive wiki ( ) it
appears that the hive server is single threaded.

I might be mistaking, but this is what i understand from that text: if i launch 2 requests
from my client towards the hive server, the hive server will not handle them in parallel and
the hadoop requests done by hive itself will run one after another, not in parallel.

Is this right? If (hopefully) not :) , could someone please clarify that for me, if possible?

Thank you.

> Add testcases for concurrent query execution
> --------------------------------------------
>                 Key: HIVE-80
>                 URL:
>             Project: Hive
>          Issue Type: Test
>          Components: Query Processor
>            Reporter: Raghotham Murthy
>            Assignee: Arvind Prabhakar
>            Priority: Critical
>         Attachments: hive_input_format_race-2.patch
> Can use one driver object per query.

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