Hi, Are there any other Exceptions or Errors in the log of the TaskManagers/JobManager?
Best, Aljoscha > On 26. Apr 2017, at 14:12, 猎豹移动 李木柯 <limuke...@163.com> wrote: > > I run the wordcount example , input data size is 10.9G > command: ./bin/flink run -m yarn-cluster -yn 45 -yjm 2048 -ytm 2048 > ./examples/batch/WordCount.jar --input /path --output /path1 > and finally it throws exceptions as follows > Can anyone give me some help?Thanks > > Caused by: java.lang.Exception: The data preparation for task 'Reduce > (SUM(1), at main(WordCount.java:78)' , caused an error: Error obtaining the > sorted input: Thread 'SortMerger Reading Thread' terminated due to an > exception: Lost connection to task manager 'xxx.com/ip:port'. This indicates > that the remote task manager was lost. > at > org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:465) > at > org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:355) > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:655) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.RuntimeException: Error obtaining the sorted input: > Thread 'SortMerger Reading Thread' terminated due to an exception: Lost > connection to task manager ''xxx.com/ip:port'. This indicates that the remote > task manager was lost. > at > org.apache.flink.runtime.operators.sort.UnilateralSortMerger.getIterator(UnilateralSortMerger.java:619) > at > org.apache.flink.runtime.operators.BatchTask.getInput(BatchTask.java:1094) > at > org.apache.flink.runtime.operators.GroupReduceDriver.prepare(GroupReduceDriver.java:99) > at > org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:460) > ... 3 more > Caused by: java.io.IOException: Thread 'SortMerger Reading Thread' terminated > due to an exception: Lost connection to task manager ''xxx.com/ip:port'. This > indicates that the remote task manager was lost. > at > org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:799) > Caused by: > org.apache.flink.runtime.io.network.netty.exception.RemoteTransportException: > Lost connection to task manager ''xxx.com/ip:port'. This indicates that the > remote task manager was lost. > at > org.apache.flink.runtime.io.network.netty.PartitionRequestClientHandler.exceptionCaught(PartitionRequestClientHandler.java:147) > at > io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275) > at > io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253) > at > io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131) > at > io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275) > at > io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253) > at > io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131) > at > io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275) > at > io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253) > at > io.netty.channel.ChannelHandlerAdapter.exceptionCaught(ChannelHandlerAdapter.java:79) > at > io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275) > at > io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253) > at > io.netty.channel.DefaultChannelPipeline.fireExceptionCaught(DefaultChannelPipeline.java:835) > at > io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.handleReadException(AbstractNioByteChannel.java:87) > at > io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:162) > 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$2.run(SingleThreadEventExecutor.java:111) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.io.IOException: Connection reset by peer > at sun.nio.ch.FileDispatcherImpl.read0(Native Method) > at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) > at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) > at sun.nio.ch.IOUtil.read(IOUtil.java:192) > at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) > at > io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:311) > at > io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:881) > at > io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:241) > at > io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119) > ... 6 more > > >
