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Posted to issues@spark.apache.org by "Willi Raschkowski (Jira)" <ji...@apache.org> on 2022/04/27 11:55:00 UTC
[jira] [Created] (SPARK-39044) AggregatingAccumulator with TypedImperativeAggregate throwing NullPointerException
Willi Raschkowski created SPARK-39044:
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Summary: AggregatingAccumulator with TypedImperativeAggregate throwing NullPointerException
Key: SPARK-39044
URL: https://issues.apache.org/jira/browse/SPARK-39044
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.2.1
Reporter: Willi Raschkowski
We're using a custom TypedImperativeAggregate inside an AggregatingAccumulator (via {{observe()}} and get this error below:
{code}
Caused by: java.io.IOException: java.lang.NullPointerException
at org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1435)
at org.apache.spark.scheduler.DirectTaskResult.writeExternal(TaskResult.scala:51)
at java.base/java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1460)
at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1179)
at java.base/java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:349)
at org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46)
at org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:114)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:633)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
... 1 more
Caused by: java.lang.NullPointerException
at org.apache.spark.sql.catalyst.expressions.aggregate.TypedImperativeAggregate.getBufferObject(interfaces.scala:638)
at org.apache.spark.sql.catalyst.expressions.aggregate.TypedImperativeAggregate.getBufferObject(interfaces.scala:599)
at org.apache.spark.sql.catalyst.expressions.aggregate.TypedImperativeAggregate.serializeAggregateBufferInPlace(interfaces.scala:621)
at org.apache.spark.sql.execution.AggregatingAccumulator.withBufferSerialized(AggregatingAccumulator.scala:205)
at org.apache.spark.sql.execution.AggregatingAccumulator.withBufferSerialized(AggregatingAccumulator.scala:33)
at org.apache.spark.util.AccumulatorV2.writeReplace(AccumulatorV2.scala:186)
at jdk.internal.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at java.base/java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1235)
at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1137)
at java.base/java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:349)
at org.apache.spark.scheduler.DirectTaskResult.$anonfun$writeExternal$2(TaskResult.scala:55)
at org.apache.spark.scheduler.DirectTaskResult.$anonfun$writeExternal$2$adapted(TaskResult.scala:55)
at scala.collection.Iterator.foreach(Iterator.scala:943)
at scala.collection.Iterator.foreach$(Iterator.scala:943)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
at scala.collection.IterableLike.foreach(IterableLike.scala:74)
at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
at scala.collection.AbstractIterable.foreach(Iterable.scala:56)
at org.apache.spark.scheduler.DirectTaskResult.$anonfun$writeExternal$1(TaskResult.scala:55)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.util.Utils$.tryOrIOException(Utils.scala:1428)
... 11 more
{code}
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