我有一个flink流的工作，它失败了，我得到如下日志。有人能告诉我如何解决这个问题吗？它有时在运行一天后失败，有时在几个小时后失败。

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