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https://issues.apache.org/jira/browse/SPARK-22373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16269128#comment-16269128
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Min Shen commented on SPARK-22373:
----------------------------------
Tried running the test application using 10 concurrent threads to compile the
generated code I have.
With the current version of Janino 3.0.0 used by Spark, if I run the test
application 100 times, I'm always able to see this NPE happening once or twice.
Switched to latest version of Janino 3.0.7 and tried multiple times, haven't
seen this NPE happening yet.
Seems that this might be fixed by bumping up Janino dependency version.
> Intermittent NullPointerException in
> org.codehaus.janino.IClass.isAssignableFrom
> --------------------------------------------------------------------------------
>
> Key: SPARK-22373
> URL: https://issues.apache.org/jira/browse/SPARK-22373
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.1.1
> Environment: Hortonworks distribution: HDP 2.6.2.0-205 ,
> /usr/hdp/current/spark2-client/jars/spark-core_2.11-2.1.1.2.6.2.0-205.jar
> Reporter: Dan Meany
> Priority: Minor
>
> Very occasional and retry works.
> Full stack:
> 17/10/27 21:06:15 ERROR Executor: Exception in task 29.0 in stage 12.0 (TID
> 758)
> java.lang.NullPointerException
> at org.codehaus.janino.IClass.isAssignableFrom(IClass.java:569)
> at
> org.codehaus.janino.UnitCompiler.isWideningReferenceConvertible(UnitCompiler.java:10347)
> at
> org.codehaus.janino.UnitCompiler.isMethodInvocationConvertible(UnitCompiler.java:8636)
> at
> org.codehaus.janino.UnitCompiler.findMostSpecificIInvocable(UnitCompiler.java:8427)
> at
> org.codehaus.janino.UnitCompiler.findMostSpecificIInvocable(UnitCompiler.java:8285)
> at org.codehaus.janino.UnitCompiler.findIMethod(UnitCompiler.java:8169)
> at org.codehaus.janino.UnitCompiler.findIMethod(UnitCompiler.java:8071)
> at org.codehaus.janino.UnitCompiler.compileGet2(UnitCompiler.java:4421)
> at org.codehaus.janino.UnitCompiler.access$7500(UnitCompiler.java:206)
> at
> org.codehaus.janino.UnitCompiler$12.visitMethodInvocation(UnitCompiler.java:3774)
> at
> org.codehaus.janino.UnitCompiler$12.visitMethodInvocation(UnitCompiler.java:3762)
> at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:4328)
> at org.codehaus.janino.UnitCompiler.compileGet(UnitCompiler.java:3762)
> at
> org.codehaus.janino.UnitCompiler.compileGetValue(UnitCompiler.java:4933)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:3180)
> at org.codehaus.janino.UnitCompiler.access$5000(UnitCompiler.java:206)
> at
> org.codehaus.janino.UnitCompiler$9.visitMethodInvocation(UnitCompiler.java:3151)
> at
> org.codehaus.janino.UnitCompiler$9.visitMethodInvocation(UnitCompiler.java:3139)
> at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:4328)
> at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:3139)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:2112)
> at org.codehaus.janino.UnitCompiler.access$1700(UnitCompiler.java:206)
> at
> org.codehaus.janino.UnitCompiler$6.visitExpressionStatement(UnitCompiler.java:1377)
> at
> org.codehaus.janino.UnitCompiler$6.visitExpressionStatement(UnitCompiler.java:1370)
> at org.codehaus.janino.Java$ExpressionStatement.accept(Java.java:2558)
> at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:1370)
> at
> org.codehaus.janino.UnitCompiler.compileStatements(UnitCompiler.java:1450)
> at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:2811)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:550)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:890)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:894)
> at org.codehaus.janino.UnitCompiler.access$600(UnitCompiler.java:206)
> at
> org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:377)
> at
> org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:369)
> at
> org.codehaus.janino.Java$MemberClassDeclaration.accept(Java.java:1128)
> at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:369)
> at
> org.codehaus.janino.UnitCompiler.compileDeclaredMemberTypes(UnitCompiler.java:1209)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:564)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:890)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:894)
> at org.codehaus.janino.UnitCompiler.access$600(UnitCompiler.java:206)
> at
> org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:377)
> at
> org.codehaus.janino.UnitCompiler$2.visitMemberClassDeclaration(UnitCompiler.java:369)
> at
> org.codehaus.janino.Java$MemberClassDeclaration.accept(Java.java:1128)
> at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:369)
> at
> org.codehaus.janino.UnitCompiler.compileDeclaredMemberTypes(UnitCompiler.java:1209)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:564)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:420)
> at org.codehaus.janino.UnitCompiler.access$400(UnitCompiler.java:206)
> at
> org.codehaus.janino.UnitCompiler$2.visitPackageMemberClassDeclaration(UnitCompiler.java:374)
> at
> org.codehaus.janino.UnitCompiler$2.visitPackageMemberClassDeclaration(UnitCompiler.java:369)
> at
> org.codehaus.janino.Java$AbstractPackageMemberClassDeclaration.accept(Java.java:1309)
> at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:369)
> at org.codehaus.janino.UnitCompiler.compileUnit(UnitCompiler.java:345)
> at
> org.codehaus.janino.SimpleCompiler.compileToClassLoader(SimpleCompiler.java:396)
> at
> org.codehaus.janino.ClassBodyEvaluator.compileToClass(ClassBodyEvaluator.java:311)
> at
> org.codehaus.janino.ClassBodyEvaluator.cook(ClassBodyEvaluator.java:229)
> at org.codehaus.janino.SimpleCompiler.cook(SimpleCompiler.java:196)
> at org.codehaus.commons.compiler.Cookable.cook(Cookable.java:91)
> at
> org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$.org$apache$spark$sql$catalyst$expressions$codegen$CodeGenerator$$doCompile(CodeGenerator.scala:959)
> at
> org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$$anon$1.load(CodeGenerator.scala:1026)
> at
> org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$$anon$1.load(CodeGenerator.scala:1023)
> at
> org.spark_project.guava.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3599)
> at
> org.spark_project.guava.cache.LocalCache$Segment.loadSync(LocalCache.java:2379)
> at
> org.spark_project.guava.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2342)
> at
> org.spark_project.guava.cache.LocalCache$Segment.get(LocalCache.java:2257)
> at org.spark_project.guava.cache.LocalCache.get(LocalCache.java:4000)
> at
> org.spark_project.guava.cache.LocalCache.getOrLoad(LocalCache.java:4004)
> at
> org.spark_project.guava.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4874)
> at
> org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$.compile(CodeGenerator.scala:908)
> at
> org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8.apply(WholeStageCodegenExec.scala:372)
> at
> org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8.apply(WholeStageCodegenExec.scala:371)
> at
> org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1$$anonfun$apply$26.apply(RDD.scala:844)
> at
> org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1$$anonfun$apply$26.apply(RDD.scala:844)
> at
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:323)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:287)
> at
> org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
> at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:323)
> at org.apache.spark.rdd.RDD.iterator(RDD.scala:287)
> at
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:96)
> at
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:53)
> at org.apache.spark.scheduler.Task.run(Task.scala:99)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:322)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> 17/10/27 21:06:15 INFO CodeGenerator: Code generated in 8.896831 ms
> Intermittent nature of problem makes me suspect the cache or a thread-related
> issue.
> Some the SQL that appears in the area of the code line reported in Spark UI:
> dense_rank() over (partition by itemid, type order by
> sum(col_a)+(sum(col_b)/1000000000000000.0) desc) as rank,
> ...where cast(mytimestampfield as String) >= '$mydate'
>
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