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https://issues.apache.org/jira/browse/SPARK-16795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15399254#comment-15399254
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Sean Owen commented on SPARK-16795:
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I'm not super familiar with the thrift server, but generally one process has
one context, which can handle multiple parallel requests. I am not sure the
number of contexts matters.
> Spark's HiveThriftServer should be able to use multiple sqlContexts
> -------------------------------------------------------------------
>
> Key: SPARK-16795
> URL: https://issues.apache.org/jira/browse/SPARK-16795
> Project: Spark
> Issue Type: Wish
> Affects Versions: 2.0.0
> Reporter: Furcy Pin
>
> It seems that when sending multiple Hive queries to the thrift server, the
> server cannot parallelize the query plannings, because
> it uses only one global sqlContext.
> This make the server very inefficient at handling many small concurrent
> queries.
> It would be nice to have it use a pool of sqlContexts instead, with a
> configurable maximum number of contexts.
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