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https://issues.apache.org/jira/browse/HIVE-26167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Pintér reassigned HIVE-26167:
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> QueryStateMap is SessionState is maintained correctly
> -----------------------------------------------------
>
> Key: HIVE-26167
> URL: https://issues.apache.org/jira/browse/HIVE-26167
> Project: Hive
> Issue Type: Improvement
> Reporter: László Pintér
> Assignee: László Pintér
> Priority: Major
>
> When the Driver is the QueryStateMap is also initialized with the query ID
> and the current queryState object. This record is kept in the map until the
> execution of the query is completed.
> There are many unit tests that initialise the driver object once during the
> setup phase, and use the same object to execute all the different queries. As
> a consequence, after the first execution, the QueryStateMap will be cleaned
> and all subsequent queries will run into null pointer exception while trying
> to fetch the current querystate from the SessionState.
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