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https://issues.apache.org/jira/browse/SPARK-20714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shixiong Zhu resolved SPARK-20714.
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Resolution: Fixed
> Fix match error when watermark is set with timeout = no timeout / processing
> timeout
> ------------------------------------------------------------------------------------
>
> Key: SPARK-20714
> URL: https://issues.apache.org/jira/browse/SPARK-20714
> Project: Spark
> Issue Type: Sub-task
> Components: Structured Streaming
> Affects Versions: 2.2.0
> Reporter: Tathagata Das
> Assignee: Tathagata Das
> Fix For: 2.2.0
>
>
> When watermark is set, and timeout conf is NoTimeout or ProcessingTimeTimeout
> (both do not need the watermark), the query fails at runtime with the
> following exception.
> {code}
> MatchException:
> Some(org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificPredicate@1a9b798e)
> (of class scala.Some)
>
> org.apache.spark.sql.execution.streaming.FlatMapGroupsWithStateExec$$anonfun$doExecute$1.apply(FlatMapGroupsWithStateExec.scala:120)
>
> org.apache.spark.sql.execution.streaming.FlatMapGroupsWithStateExec$$anonfun$doExecute$1.apply(FlatMapGroupsWithStateExec.scala:116)
>
> org.apache.spark.sql.execution.streaming.state.package$StateStoreOps$$anonfun$1.apply(package.scala:70)
>
> org.apache.spark.sql.execution.streaming.state.package$StateStoreOps$$anonfun$1.apply(package.scala:65)
>
> org.apache.spark.sql.execution.streaming.state.StateStoreRDD.compute(StateStoreRDD.scala:64)
> {code}
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