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https://issues.apache.org/jira/browse/SPARK-23894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Imran Rashid updated SPARK-23894:
---------------------------------
    Attachment: unit-tests.log

> Flaky Test:  BucketedWriteWithoutHiveSupportSuite
> -------------------------------------------------
>
>                 Key: SPARK-23894
>                 URL: https://issues.apache.org/jira/browse/SPARK-23894
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Imran Rashid
>            Priority: Minor
>         Attachments: unit-tests.log
>
>
> Flaky test observed here: 
> https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/88991/
> I'll attach a snippet of the unit-tests logs, for this suite and the 
> preceeding one.  Here's a snippet of the exception.
> {noformat}
> 08:36:34.694 Executor task launch worker for task 436 ERROR Executor: 
> Exception in task 0.0 in stage 402.0 (TID 436)
> java.lang.IllegalStateException: LiveListenerBus is stopped.
>         at 
> org.apache.spark.scheduler.LiveListenerBus.addToQueue(LiveListenerBus.scala:97)
>         at 
> org.apache.spark.scheduler.LiveListenerBus.addToStatusQueue(LiveListenerBus.scala:80)
>         at 
> org.apache.spark.sql.internal.SharedState.<init>(SharedState.scala:93)
>         at 
> org.apache.spark.sql.SparkSession$$anonfun$sharedState$1.apply(SparkSession.scala:117)
>         at 
> org.apache.spark.sql.SparkSession$$anonfun$sharedState$1.apply(SparkSession.scala:117)
>         at scala.Option.getOrElse(Option.scala:121)
>         at 
> org.apache.spark.sql.SparkSession.sharedState$lzycompute(SparkSession.scala:117)
>         at 
> org.apache.spark.sql.SparkSession.sharedState(SparkSession.scala:116)
>         at 
> org.apache.spark.sql.internal.BaseSessionStateBuilder.build(BaseSessionStateBuilder.scala:286)
>         at 
> org.apache.spark.sql.test.TestSparkSession.sessionState$lzycompute(TestSQLContext.scala:42)
>         at 
> org.apache.spark.sql.test.TestSparkSession.sessionState(TestSQLContext.scala:41)
>         at 
> org.apache.spark.sql.SparkSession$$anonfun$1$$anonfun$apply$1.apply(SparkSession.scala:92)
>         at 
> org.apache.spark.sql.SparkSession$$anonfun$1$$anonfun$apply$1.apply(SparkSession.scala:92)
>         at scala.Option.map(Option.scala:146)
>         at 
> org.apache.spark.sql.SparkSession$$anonfun$1.apply(SparkSession.scala:92)
>         at 
> org.apache.spark.sql.SparkSession$$anonfun$1.apply(SparkSession.scala:91)
>         at org.apache.spark.sql.internal.SQLConf$.get(SQLConf.scala:110)
>         at org.apache.spark.sql.types.DataType.sameType(DataType.scala:84)
>         at 
> org.apache.spark.sql.catalyst.analysis.TypeCoercion$$anonfun$1.apply(TypeCoercion.scala:105)
>         at 
> org.apache.spark.sql.catalyst.analysis.TypeCoercion$$anonfun$1.apply(TypeCoercion.scala:86)
> {noformat}
> I doubt this is actually because of BucketedWriteWithoutHiveSupportSuite.  I 
> think it has something more to do with {{SparkSession}} 's lazy evaluation of 
> {{SharedState}} doing something funny with the way we setup the test spark 
> context etc ... though I don't really understand it yet.



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