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Posted to issues@spark.apache.org by "Cheng Lian (JIRA)" <ji...@apache.org> on 2017/02/07 19:38:41 UTC
[jira] [Commented] (SPARK-17714) ClassCircularityError is thrown when using org.apache.spark.util.Utils.classForName

    [ https://issues.apache.org/jira/browse/SPARK-17714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15856638#comment-15856638 ] 

Cheng Lian commented on SPARK-17714:
------------------------------------

Although I've no idea why this error occurs, it seems that setting system property {{io.netty.noJavassist}} to {{true}} can workaround this issue by disabling Javassist usage in Netty.

> ClassCircularityError is thrown when using org.apache.spark.util.Utils.classForName 
> ------------------------------------------------------------------------------------
>
>                 Key: SPARK-17714
>                 URL: https://issues.apache.org/jira/browse/SPARK-17714
>             Project: Spark
>          Issue Type: Bug
>            Reporter: Weiqing Yang
>
> This jira is a follow up to [SPARK-15857| https://issues.apache.org/jira/browse/SPARK-15857] .
> Task invokes CallerContext. SetCurrentContext() to set its callerContext to HDFS. In SetCurrentContext(), it tries looking for class {{org.apache.hadoop.ipc.CallerContext}} by using {{org.apache.spark.util.Utils.classForName}}. This causes ClassCircularityError to be thrown when running ReplSuite in master Maven builds (The same tests pass in the SBT build). A hotfix [SPARK-17710|https://issues.apache.org/jira/browse/SPARK-17710] has been made by using Class.forName instead, but it needs further investigation.
> Error:
> https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-maven-hadoop-2.3/2000/testReport/junit/org.apache.spark.repl/ReplSuite/simple_foreach_with_accumulator/
> {code}
> scala> accum: org.apache.spark.util.LongAccumulator = LongAccumulator(id: 0, name: None, value: 0)
> scala> org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 0.0 failed 1 times, most recent failure: Lost task 0.0 in stage 0.0 (TID 0, localhost): java.lang.ClassCircularityError: io/netty/util/internal/_matchers_/org/apache/spark/network/protocol/MessageMatcher
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:62)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:54)
> at io.netty.util.internal.TypeParameterMatcher.get(TypeParameterMatcher.java:42)
> at io.netty.util.internal.TypeParameterMatcher.find(TypeParameterMatcher.java:78)
> at io.netty.handler.codec.MessageToMessageEncoder.<init>(MessageToMessageEncoder.java:59)
> at org.apache.spark.network.protocol.MessageEncoder.<init>(MessageEncoder.java:34)
> at org.apache.spark.network.TransportContext.<init>(TransportContext.java:78)
> at org.apache.spark.rpc.netty.NettyRpcEnv.downloadClient(NettyRpcEnv.scala:354)
> at org.apache.spark.rpc.netty.NettyRpcEnv.openChannel(NettyRpcEnv.scala:324)
> at org.apache.spark.repl.ExecutorClassLoader.org$apache$spark$repl$ExecutorClassLoader$$getClassFileInputStreamFromSparkRPC(ExecutorClassLoader.scala:90)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader.findClassLocally(ExecutorClassLoader.scala:162)
> at org.apache.spark.repl.ExecutorClassLoader.findClass(ExecutorClassLoader.scala:80)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:62)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:54)
> at io.netty.util.internal.TypeParameterMatcher.get(TypeParameterMatcher.java:42)
> at io.netty.util.internal.TypeParameterMatcher.find(TypeParameterMatcher.java:78)
> at io.netty.handler.codec.MessageToMessageEncoder.<init>(MessageToMessageEncoder.java:59)
> at org.apache.spark.network.protocol.MessageEncoder.<init>(MessageEncoder.java:34)
> at org.apache.spark.network.TransportContext.<init>(TransportContext.java:78)
> at org.apache.spark.rpc.netty.NettyRpcEnv.downloadClient(NettyRpcEnv.scala:354)
> at org.apache.spark.rpc.netty.NettyRpcEnv.openChannel(NettyRpcEnv.scala:324)
> at org.apache.spark.repl.ExecutorClassLoader.org$apache$spark$repl$ExecutorClassLoader$$getClassFileInputStreamFromSparkRPC(ExecutorClassLoader.scala:90)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader.findClassLocally(ExecutorClassLoader.scala:162)
> at org.apache.spark.repl.ExecutorClassLoader.findClass(ExecutorClassLoader.scala:80)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at org.apache.spark.util.Utils$.classForName(Utils.scala:225)
> at org.apache.spark.util.CallerContext.setCurrentContext(Utils.scala:2492)
> at org.apache.spark.scheduler.Task.run(Task.scala:96)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:282)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Driver stacktrace:
> at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1433)
> at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1421)
> at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1420)
> at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
> at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1420)
> at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:802)
> at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:802)
> at scala.Option.foreach(Option.scala:257)
> at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:802)
> at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:1648)
> at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1603)
> at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1592)
> at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48)
> at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:628)
> at org.apache.spark.SparkContext.runJob(SparkContext.scala:1901)
> at org.apache.spark.SparkContext.runJob(SparkContext.scala:1914)
> at org.apache.spark.SparkContext.runJob(SparkContext.scala:1927)
> at org.apache.spark.SparkContext.runJob(SparkContext.scala:1941)
> at org.apache.spark.rdd.RDD$$anonfun$foreach$1.apply(RDD.scala:894)
> at org.apache.spark.rdd.RDD$$anonfun$foreach$1.apply(RDD.scala:892)
> at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
> at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
> at org.apache.spark.rdd.RDD.withScope(RDD.scala:358)
> at org.apache.spark.rdd.RDD.foreach(RDD.scala:892)
> ... 94 elided
> Caused by: java.lang.ClassCircularityError: io/netty/util/internal/_matchers_/org/apache/spark/network/protocol/MessageMatcher
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:62)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:54)
> at io.netty.util.internal.TypeParameterMatcher.get(TypeParameterMatcher.java:42)
> at io.netty.util.internal.TypeParameterMatcher.find(TypeParameterMatcher.java:78)
> at io.netty.handler.codec.MessageToMessageEncoder.<init>(MessageToMessageEncoder.java:59)
> at org.apache.spark.network.protocol.MessageEncoder.<init>(MessageEncoder.java:34)
> at org.apache.spark.network.TransportContext.<init>(TransportContext.java:78)
> at org.apache.spark.rpc.netty.NettyRpcEnv.downloadClient(NettyRpcEnv.scala:354)
> at org.apache.spark.rpc.netty.NettyRpcEnv.openChannel(NettyRpcEnv.scala:324)
> at org.apache.spark.repl.ExecutorClassLoader.org$apache$spark$repl$ExecutorClassLoader$$getClassFileInputStreamFromSparkRPC(ExecutorClassLoader.scala:90)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader.findClassLocally(ExecutorClassLoader.scala:162)
> at org.apache.spark.repl.ExecutorClassLoader.findClass(ExecutorClassLoader.scala:80)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:62)
> at io.netty.util.internal.JavassistTypeParameterMatcherGenerator.generate(JavassistTypeParameterMatcherGenerator.java:54)
> at io.netty.util.internal.TypeParameterMatcher.get(TypeParameterMatcher.java:42)
> at io.netty.util.internal.TypeParameterMatcher.find(TypeParameterMatcher.java:78)
> at io.netty.handler.codec.MessageToMessageEncoder.<init>(MessageToMessageEncoder.java:59)
> at org.apache.spark.network.protocol.MessageEncoder.<init>(MessageEncoder.java:34)
> at org.apache.spark.network.TransportContext.<init>(TransportContext.java:78)
> at org.apache.spark.rpc.netty.NettyRpcEnv.downloadClient(NettyRpcEnv.scala:354)
> at org.apache.spark.rpc.netty.NettyRpcEnv.openChannel(NettyRpcEnv.scala:324)
> at org.apache.spark.repl.ExecutorClassLoader.org$apache$spark$repl$ExecutorClassLoader$$getClassFileInputStreamFromSparkRPC(ExecutorClassLoader.scala:90)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader$$anonfun$1.apply(ExecutorClassLoader.scala:57)
> at org.apache.spark.repl.ExecutorClassLoader.findClassLocally(ExecutorClassLoader.scala:162)
> at org.apache.spark.repl.ExecutorClassLoader.findClass(ExecutorClassLoader.scala:80)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:348)
> at org.apache.spark.util.Utils$.classForName(Utils.scala:225)
> at org.apache.spark.util.CallerContext.setCurrentContext(Utils.scala:2492)
> at org.apache.spark.scheduler.Task.run(Task.scala:96)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:282)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> scala> res1: Long = 0
> {code}



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