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https://issues.apache.org/jira/browse/SPARK-6482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Lian updated SPARK-6482:
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Priority: Critical (was: Major)
> Remove synchronization of Hive Native commands
> ----------------------------------------------
>
> Key: SPARK-6482
> URL: https://issues.apache.org/jira/browse/SPARK-6482
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.3.0
> Reporter: David Ross
> Priority: Critical
>
> As discussed in https://issues.apache.org/jira/browse/SPARK-4908, concurrent
> hive native commands run into thread-safety issues with
> {{org.apache.hadoop.hive.ql.Driver}}.
> The quick-fix was to synchronize calls to {{runHive}}:
> https://github.com/apache/spark/commit/480bd1d2edd1de06af607b0cf3ff3c0b16089add
> However, if the hive native command is long-running, this can block
> subsequent queries if they have native dependencies.
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