Adi Wehrli created SPARK-45644:
----------------------------------
Summary: After upgrading to Spark 3.4.1 we receive
RuntimeException "is not valid external type"
Key: SPARK-45644
URL: https://issues.apache.org/jira/browse/SPARK-45644
Project: Spark
Issue Type: Question
Components: Spark Core
Affects Versions: 3.5.0, 3.4.1
Reporter: Adi Wehrli
A Spark job ran successfully with Spark 3.2.x and 3.3.x.
But after upgrading to 3.4.1 (as well as with 3.5.0) the following always
occurs now:
{code}
scala.Some is not a valid external type for schema of array<string>
{code}
The corresponding stacktrace is:
{code}
2023-10-24T06:28:50.932 level=ERROR logger=org.apache.spark.executor.Executor
msg="Exception in task 0.0 in stage 0.0 (TID 0)" thread="Executor task launch
worker for task 0.0 in stage 0.0 (TID 0)"
java.lang.RuntimeException: scala.Some is not a valid external type for schema
of array<string>
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.MapObjects_10$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.ExternalMapToCatalyst_1$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.createNamedStruct_14_3$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.If_12$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.execution.ObjectOperator$.$anonfun$serializeObjectToRow$1(objects.scala:165)
~[spark-sql_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.sql.execution.AppendColumnsWithObjectExec.$anonfun$doExecute$15(objects.scala:380)
~[spark-sql_2.12-3.5.0.jar:3.5.0]
at scala.collection.Iterator$$anon$10.next(Iterator.scala:461)
~[scala-library-2.12.15.jar:?]
at scala.collection.Iterator$$anon$10.next(Iterator.scala:461)
~[scala-library-2.12.15.jar:?]
at
org.apache.spark.shuffle.sort.BypassMergeSortShuffleWriter.write(BypassMergeSortShuffleWriter.java:169)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.shuffle.ShuffleWriteProcessor.write(ShuffleWriteProcessor.scala:59)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:104)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:54)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:161)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at org.apache.spark.scheduler.Task.run(Task.scala:141)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$4(Executor.scala:620)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally(SparkErrorUtils.scala:64)
~[spark-common-utils_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally$(SparkErrorUtils.scala:61)
~[spark-common-utils_2.12-3.5.0.jar:3.5.0]
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:94)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:623)
[spark-core_2.12-3.5.0.jar:3.5.0]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
2023-10-24T06:28:50.932 level=ERROR logger=org.apache.spark.executor.Executor
msg="Exception in task 1.0 in stage 0.0 (TID 1)" thread="Executor task launch
worker for task 1.0 in stage 0.0 (TID 1)"
java.lang.RuntimeException: scala.Some is not a valid external type for schema
of array<string>
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.MapObjects_10$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.ExternalMapToCatalyst_1$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.createNamedStruct_14_3$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.If_12$(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown
Source) ~[?:?]
at
org.apache.spark.sql.execution.ObjectOperator$.$anonfun$serializeObjectToRow$1(objects.scala:165)
~[spark-sql_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.sql.execution.AppendColumnsWithObjectExec.$anonfun$doExecute$15(objects.scala:380)
~[spark-sql_2.12-3.5.0.jar:3.5.0]
at scala.collection.Iterator$$anon$10.next(Iterator.scala:461)
~[scala-library-2.12.15.jar:?]
at scala.collection.Iterator$$anon$10.next(Iterator.scala:461)
~[scala-library-2.12.15.jar:?]
at
org.apache.spark.shuffle.sort.BypassMergeSortShuffleWriter.write(BypassMergeSortShuffleWriter.java:169)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.shuffle.ShuffleWriteProcessor.write(ShuffleWriteProcessor.scala:59)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:104)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:54)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.TaskContext.runTaskWithListeners(TaskContext.scala:161)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at org.apache.spark.scheduler.Task.run(Task.scala:141)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$4(Executor.scala:620)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally(SparkErrorUtils.scala:64)
~[spark-common-utils_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.util.SparkErrorUtils.tryWithSafeFinally$(SparkErrorUtils.scala:61)
~[spark-common-utils_2.12-3.5.0.jar:3.5.0]
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:94)
~[spark-core_2.12-3.5.0.jar:3.5.0]
at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:623)
[spark-core_2.12-3.5.0.jar:3.5.0]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
at java.lang.Thread.run(Thread.java:834) [?:?]
{code}
As the error occurs in generated code we cannot debug what was really the cause.
And we did not find anything in the upgrade guides about such a behaviour.
What could be the cause for this?
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