Bug: Flaky test: org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.Fallback Parquet V2 to V1
Status: Open | Priority: Major | Resolution: 
Created: 22/Jun/20 15:45
Affects Version/s: 3.1.0

https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/124364/testReport/org.apache.spark.sql.connector/FileDataSourceV2FallBackSuite/Fallback_Parquet_V2_to_V1/

{code:java}
Error Message
org.scalatest.exceptions.TestFailedException: ArrayBuffer((collect,Relation[id#387495L] parquet ), (save,InsertIntoHadoopFsRelationCommand file:/home/jenkins/workspace/SparkPullRequestBuilder@3/target/tmp/spark-fe4d8028-b7c5-406d-9c5a-59c96e98f776, false, Parquet, Map(path -> /home/jenkins/workspace/SparkPullRequestBuilder@3/target/tmp/spark-fe4d8028-b7c5-406d-9c5a-59c96e98f776), ErrorIfExists, [id] +- Range (0, 10, step=1, splits=Some(2)) )) had length 2 instead of expected length 1
Stacktrace
sbt.ForkMain$ForkError: org.scalatest.exceptions.TestFailedException: ArrayBuffer((collect,Relation[id#387495L] parquet
), (save,InsertIntoHadoopFsRelationCommand file:/home/jenkins/workspace/SparkPullRequestBuilder@3/target/tmp/spark-fe4d8028-b7c5-406d-9c5a-59c96e98f776, false, Parquet, Map(path -> /home/jenkins/workspace/SparkPullRequestBuilder@3/target/tmp/spark-fe4d8028-b7c5-406d-9c5a-59c96e98f776), ErrorIfExists, [id]
+- Range (0, 10, step=1, splits=Some(2))
)) had length 2 instead of expected length 1
	at org.scalatest.Assertions.newAssertionFailedException(Assertions.scala:530)
	at org.scalatest.Assertions.newAssertionFailedException$(Assertions.scala:529)
	at org.scalatest.FunSuite.newAssertionFailedException(FunSuite.scala:1560)
	at org.scalatest.Assertions$AssertionsHelper.macroAssert(Assertions.scala:503)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.$anonfun$new$22(FileDataSourceV2FallBackSuite.scala:180)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.$anonfun$new$22$adapted(FileDataSourceV2FallBackSuite.scala:176)
	at org.apache.spark.sql.catalyst.plans.SQLHelper.withTempPath(SQLHelper.scala:69)
	at org.apache.spark.sql.catalyst.plans.SQLHelper.withTempPath$(SQLHelper.scala:66)
	at org.apache.spark.sql.QueryTest.withTempPath(QueryTest.scala:34)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.$anonfun$new$21(FileDataSourceV2FallBackSuite.scala:176)
	at org.apache.spark.sql.catalyst.plans.SQLHelper.withSQLConf(SQLHelper.scala:54)
	at org.apache.spark.sql.catalyst.plans.SQLHelper.withSQLConf$(SQLHelper.scala:38)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.org$apache$spark$sql$test$SQLTestUtilsBase$$super$withSQLConf(FileDataSourceV2FallBackSuite.scala:85)
	at org.apache.spark.sql.test.SQLTestUtilsBase.withSQLConf(SQLTestUtils.scala:246)
	at org.apache.spark.sql.test.SQLTestUtilsBase.withSQLConf$(SQLTestUtils.scala:244)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.withSQLConf(FileDataSourceV2FallBackSuite.scala:85)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.$anonfun$new$20(FileDataSourceV2FallBackSuite.scala:158)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.$anonfun$new$20$adapted(FileDataSourceV2FallBackSuite.scala:157)
	at scala.collection.immutable.List.foreach(List.scala:392)
	at org.apache.spark.sql.connector.FileDataSourceV2FallBackSuite.$anonfun$new$19(FileDataSourceV2FallBackSuite.scala:157)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
	at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
	at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)
	at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
	at org.scalatest.Transformer.apply(Transformer.scala:22)
	at org.scalatest.Transformer.apply(Transformer.scala:20)
	at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:186)
	at org.apache.spark.SparkFunSuite.withFixture(SparkFunSuite.scala:157)
	at org.scalatest.FunSuiteLike.invokeWithFixture$1(FunSuiteLike.scala:184)
	at org.scalatest.FunSuiteLike.$anonfun$runTest$1(FunSuiteLike.scala:196)
	at org.scalatest.SuperEngine.runTestImpl(Engine.scala:286)
	at org.scalatest.FunSuiteLike.runTest(FunSuiteLike.scala:196)
	at org.scalatest.FunSuiteLike.runTest$(FunSuiteLike.scala:178)
	at org.apache.spark.SparkFunSuite.org$scalatest$BeforeAndAfterEach$$super$runTest(SparkFunSuite.scala:59)
	at org.scalatest.BeforeAndAfterEach.runTest(BeforeAndAfterEach.scala:221)
	at org.scalatest.BeforeAndAfterEach.runTest$(BeforeAndAfterEach.scala:214)
	at org.apache.spark.SparkFunSuite.runTest(SparkFunSuite.scala:59)
	at org.scalatest.FunSuiteLike.$anonfun$runTests$1(FunSuiteLike.scala:229)
	at org.scalatest.SuperEngine.$anonfun$runTestsInBranch$1(Engine.scala:393)
	at scala.collection.immutable.List.foreach(List.scala:392)
	at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:381)
	at org.scalatest.SuperEngine.runTestsInBranch(Engine.scala:376)
	at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:458)
	at org.scalatest.FunSuiteLike.runTests(FunSuiteLike.scala:229)
	at org.scalatest.FunSuiteLike.runTests$(FunSuiteLike.scala:228)
	at org.scalatest.FunSuite.runTests(FunSuite.scala:1560)
	at org.scalatest.Suite.run(Suite.scala:1124)
	at org.scalatest.Suite.run$(Suite.scala:1106)
	at org.scalatest.FunSuite.org$scalatest$FunSuiteLike$$super$run(FunSuite.scala:1560)
	at org.scalatest.FunSuiteLike.$anonfun$run$1(FunSuiteLike.scala:233)
	at org.scalatest.SuperEngine.runImpl(Engine.scala:518)
	at org.scalatest.FunSuiteLike.run(FunSuiteLike.scala:233)
	at org.scalatest.FunSuiteLike.run$(FunSuiteLike.scala:232)
	at org.apache.spark.SparkFunSuite.org$scalatest$BeforeAndAfterAll$$super$run(SparkFunSuite.scala:59)
	at org.scalatest.BeforeAndAfterAll.liftedTree1$1(BeforeAndAfterAll.scala:213)
	at org.scalatest.BeforeAndAfterAll.run(BeforeAndAfterAll.scala:210)
	at org.scalatest.BeforeAndAfterAll.run$(BeforeAndAfterAll.scala:208)
	at org.apache.spark.SparkFunSuite.run(SparkFunSuite.scala:59)
	at org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:317)
	at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:510)
	at sbt.ForkMain$Run$2.call(ForkMain.java:296)
	at sbt.ForkMain$Run$2.call(ForkMain.java:286)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
{code}