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https://issues.apache.org/jira/browse/LENS-973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15350647#comment-15350647
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Puneet Gupta commented on LENS-973:
-----------------------------------
The current workaround is to save all the driver specific config via
AbstractQueryContext#updateConf in DriverQueryHook#postDriverSelection
> On Server restart not able to launch new queries on hive if queue constraint
> driver.max.concurrent.launched.queries.per.queue is enabled
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: LENS-973
> URL: https://issues.apache.org/jira/browse/LENS-973
> Project: Apache Lens
> Issue Type: Bug
> Components: server
> Reporter: Puneet Gupta
> Assignee: Sushil Mohanty
>
> {noformat}
> org.apache.lens.server.query.QueryExecutionServiceImpl - Error launching
> query: 94487ed0-b 881-4949-9421-5344dcd3baf4
> 12041 java.lang.NullPointerException: null
> 12042 at
> org.apache.lens.server.api.query.constraint.MaxConcurrentDriverQueriesConstraint.canLaunchWithQueueConstraint(MaxConcurrentDriverQueriesConstraint.java:64)
> ~[lens -server-api-2.5.3-inm.jar:2.5.3-inm]
> 12043 at
> org.apache.lens.server.api.query.constraint.MaxConcurrentDriverQueriesConstraint.allowsLaunchOf(MaxConcurrentDriverQueriesConstraint.j
> {noformat}
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