Ufuk Celebi created FLINK-2381:
----------------------------------
Summary: Possible class not found Exception on failed partition
producer
Key: FLINK-2381
URL: https://issues.apache.org/jira/browse/FLINK-2381
Project: Flink
Issue Type: Improvement
Components: Distributed Runtime
Affects Versions: 0.9, master
Reporter: Ufuk Celebi
Fix For: 0.10, 0.9.1
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.
{code}
+----------+
| FAILING |
| PRODUCER |
+----------+
||
\/
ProducerFailedException(CAUSE) via network
||
\/
+----------+
| RECEIVER |
+----------+
{code}
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 [~rmetzger] for reporting and debugging the issue with the following
stack trace:
{code}
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
{code}
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