Question

我有一个Flink Streaming作业，但失败了，我得到了如下日志。有人可以告诉我如何解决该问题吗？运行一天后，它有时会失败，而几个小时后，它有时会失败。

09:30:25 948  INFO (org.apache.flink.runtime.executiongraph.ExecutionGraph:1240) - TriggerWindow(TumblingProcessingTimeWindows(600000), ListStateDescriptor{serializer=org.apache.flink.api.common.typeutils.base.ListSerializer@ece0f926}, ProcessingTimeTrigger(), WindowedStream.process(WindowedStream.scala:563)) -> Filter -> Filter -> Map (40/48) (19ea993ced2b161422c345c9b633853a) switched from RUNNING to FAILED.
org.apache.flink.runtime.io.network.netty.exception.RemoteTransportException: Lost connection to task manager . This indicates that the remote task manager was lost.
    at org.apache.flink.runtime.io.network.netty.PartitionRequestClientHandler.exceptionCaught(PartitionRequestClientHandler.java:146)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
    at org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
    at org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
    at org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter.exceptionCaught(ChannelHandlerAdapter.java:79)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
    at org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
    at org.apache.flink.shaded.netty4.io.netty.channel.DefaultChannelPipeline.fireExceptionCaught(DefaultChannelPipeline.java:835)
    at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.handleReadException(AbstractNioByteChannel.java:87)
    at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:162)
    at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
    at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
    at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
    at org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
    at org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Connection reset by peer
    at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
    at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
    at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
    at sun.nio.ch.IOUtil.read(IOUtil.java:192)
    at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
    at org.apache.flink.shaded.netty4.io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:311)
    at org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:881)
    at org.apache.flink.shaded.netty4.io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:241)
    at org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119)
    ... 6 more

Answer 1

我最终在作业管理器日志中找到了根本原因：

- Closing TaskExecutor connection container_e06_1554425226316_0158_01_000024 because: Container [pid=14446,containerID=container_e06_1554425226316_0158_01_000024] is running beyond physical memory limits. Current usage: 12.5 GB of 12.5 GB physical memory used; 14.7 GB of 26.2 GB virtual memory used. Killing container.

所以我增加了TM记忆力

flink连接被对等方重置

1 个答案: