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  1. Flink
  2. FLINK-2381

Possible class not found Exception on failed partition producer

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.9, 0.10.0
    • Fix Version/s: 0.9.1, 0.10.0
    • Component/s: Runtime / Coordination
    • Labels:
      None

      Description

      Failing the production of a result partition marks the respective partition as failed with a ProducerFailedException.

      The cause of this exception can be a user defined class, which can only be loaded by the user code class loader. The network stack fails the shuffle with a RemoteTransportException, which has the user exception as a cause. When the consuming task receives this exception, this leads to a class not found exception, because the network stack tries to load the class with the system class loader.

      +----------+
      | FAILING  |
      | PRODUCER |
      +----------+
           || 
           \/
       ProducerFailedException(CAUSE) via network
           || 
           \/
      +----------+
      | RECEIVER |
      +----------+
      

      CAUSE is only loadable by the user code class loader.

      When trying to deserialize this, RECEIVER fails with a LocalTransportException, which is super confusing, because the error is not local, but remote.

      Thanks to Robert Metzger for reporting and debugging the issue with the following stack trace:

      Flat Map (26/120)
      
      
      14:03:00,343 ERROR org.apache.flink.streaming.runtime.tasks.OneInputStreamTask   - Flat Map (26/120) failed
      java.lang.RuntimeException: Could not read next record.
              at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.readNext(OneInputStreamTask.java:71)
              at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.invoke(OneInputStreamTask.java:101)
              at org.apache.flink.runtime.taskmanager.Task.run(Task.java:567)
              at java.lang.Thread.run(Thread.java:745)
      Caused by: org.apache.flink.runtime.io.network.netty.exception.LocalTransportException: java.lang.ClassNotFoundException: kafka.common.ConsumerRebalanceFailedException
              at org.apache.flink.runtime.io.network.netty.PartitionRequestClientHandler.exceptionCaught(PartitionRequestClientHandler.java:151)
              at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
              at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
              at io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
              at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
              at io.netty.channel.AbstractChannelHandlerContext.notifyHandlerException(AbstractChannelHandlerContext.java:809)
              at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:341)
              at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
              at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242)
              at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
              at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
              at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)
              at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
              at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
              at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
              at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
              at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
              at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
              ... 1 more
      Caused by: io.netty.handler.codec.DecoderException: java.lang.ClassNotFoundException: kafka.common.ConsumerRebalanceFailedException
              at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:99)
              at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
              ... 12 more
      Caused by: java.lang.ClassNotFoundException: kafka.common.ConsumerRebalanceFailedException
              at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
              at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
              at java.security.AccessController.doPrivileged(Native Method)
              at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
              at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
              at java.lang.Class.forName0(Native Method)
              at java.lang.Class.forName(Class.java:278)
              at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:625)
              at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612)
              at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517)
              at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771)
              at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
              at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1997)
              at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:500)
              at java.lang.Throwable.readObject(Throwable.java:914)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:606)
              at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
              at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1897)
              at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
              at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
              at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
              at org.apache.flink.runtime.io.network.netty.NettyMessage$ErrorResponse.readFrom(NettyMessage.java:338)
              at org.apache.flink.runtime.io.network.netty.NettyMessage$ .decode(NettyMessage.java:161)
              at org.apache.flink.runtime.io.network.netty.NettyMessage$NettyMessageDecoder.decode(NettyMessage.java:123)
              at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
              ... 13 more
      

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            • Assignee:
              uce Ufuk Celebi
              Reporter:
              uce Ufuk Celebi
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              • Created:
                Updated:
                Resolved: