Github user squito commented on the issue:
https://github.com/apache/spark/pull/21376
I'm still seeing a lot of build failures which seem to be related to this
(accessing a conf in a task in turn accesses the LiveListenerBus). Is this
something new? Or related to this change? eg.
https://amplab.cs.berkeley.edu/jenkins/job/NewSparkPullRequestBuilder/4193/testReport/org.apache.spark.sql.execution/UnsafeRowSerializerSuite/toUnsafeRow___test_helper_method/
```
sbt.ForkMain$ForkError: 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$$anonfun$sharedState$1.apply(SparkSession.scala:120)
at
org.apache.spark.sql.SparkSession$$anonfun$sharedState$1.apply(SparkSession.scala:120)
at scala.Option.getOrElse(Option.scala:121)
at
org.apache.spark.sql.SparkSession.sharedState$lzycompute(SparkSession.scala:120)
at org.apache.spark.sql.SparkSession.sharedState(SparkSession.scala:119)
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:95)
at
org.apache.spark.sql.SparkSession$$anonfun$1$$anonfun$apply$1.apply(SparkSession.scala:95)
at scala.Option.map(Option.scala:146)
at
org.apache.spark.sql.SparkSession$$anonfun$1.apply(SparkSession.scala:95)
at
org.apache.spark.sql.SparkSession$$anonfun$1.apply(SparkSession.scala:94)
at org.apache.spark.sql.internal.SQLConf$.get(SQLConf.scala:126)
at
org.apache.spark.sql.catalyst.expressions.CodeGeneratorWithInterpretedFallback.createObject(CodeGeneratorWithInterpretedFallback.scala:54)
at
org.apache.spark.sql.catalyst.expressions.UnsafeProjection$.create(Projection.scala:157)
at
org.apache.spark.sql.catalyst.expressions.UnsafeProjection$.create(Projection.scala:150)
at
org.apache.spark.sql.execution.UnsafeRowSerializerSuite.org$apache$spark$sql$execution$UnsafeRowSerializerSuite$$unsafeRowConverter(UnsafeRowSerializerSuite.scala:54)
at
org.apache.spark.sql.execution.UnsafeRowSerializerSuite.org$apache$spark$sql$execution$UnsafeRowSerializerSuite$$toUnsafeRow(UnsafeRowSerializerSuite.scala:49)
at
org.apache.spark.sql.execution.UnsafeRowSerializerSuite$$anonfun$2.apply(UnsafeRowSerializerSuite.scala:63)
at
org.apache.spark.sql.execution.UnsafeRowSerializerSuite$$anonfun$2.apply(UnsafeRowSerializerSuite.scala:60)
...
```
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