这个其实原因是阿里云的LoadBalancer探活机制不停的给Flink的rest endpoint发送RST导致的 目前有一个ticket来跟进这个问题[1]，但还没有修复
短时间内你可以通过log4j的配置将org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint 这个package的log level设置为WARN来暂时避免 [1]. https://issues.apache.org/jira/browse/FLINK-18129 Best, Yang 王 羽凡 <wangyufan...@gmail.com> 于2021年3月1日周一 下午1:01写道： > 使用Flink1.12 Application Mode在阿里云托管Kubernetes > ACK启动发现一些报错，同样的报错在自建Kubernetes集群中未发现。 > 但是观察taskmanager容器有正常启动，后续任务也可正常执行，针对该报错需如何处理？是不兼容阿里云ACK集群么？ > > 启动命令： > ./bin/flink run-application \ > --target kubernetes-application \ > -Dkubernetes.cluster-id=demo \ > -Dkubernetes.container.image=xx.xx.xx/xx/xxx:2.0.12 \ > local:///opt/flink/usrlib/my-flink-job.jar > > 日志： > 2021-03-01 04:52:06,518 INFO > org.apache.flink.client.deployment.application.executors.EmbeddedExecutor > [] - Job 6eb4027586e7137b20ecc8c3ce624417 is submitted. > 2021-03-01 04:52:06,518 INFO > org.apache.flink.client.deployment.application.executors.EmbeddedExecutor > [] - Submitting Job with JobId=6eb4027586e7137b20ecc8c3ce624417. > 2021-03-01 04:52:08,303 INFO > org.apache.flink.kubernetes.KubernetesResourceManagerDriver [] - Recovered > 0 pods from previous attempts, current attempt id is 1. > 2021-03-01 04:52:08,303 INFO > org.apache.flink.runtime.resourcemanager.active.ActiveResourceManager [] - > Recovered 0 workers from previous attempt. > 2021-03-01 04:52:08,306 INFO > org.apache.flink.runtime.resourcemanager.active.ActiveResourceManager [] - > ResourceManager akka.tcp://flink@demo.default:6123/user/rpc/resourcemanager_0 > was granted leadership with fencing token 00000000000000000000000000000000 > 2021-03-01 04:52:08,310 INFO > org.apache.flink.runtime.resourcemanager.slotmanager.SlotManagerImpl [] - > Starting the SlotManager. > 2021-03-01 04:52:08,596 WARN > org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint [] - > Unhandled exception > java.io.IOException: Connection reset by peer > at sun.nio.ch.FileDispatcherImpl.read0(Native Method) ~[?:1.8.0_275] > at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) > ~[?:1.8.0_275] > at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[?:1.8.0_275] > at sun.nio.ch.IOUtil.read(IOUtil.java:192) ~[?:1.8.0_275] > at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379) > ~[?:1.8.0_275] > at > org.apache.flink.shaded.netty4.io.netty.buffer.PooledByteBuf.setBytes(PooledByteBuf.java:253) > ~[flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1133) > ~[flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:350) > ~[flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275] > 2021-03-01 04:52:08,596 WARN > org.apache.flink.runtime.jobmaster.MiniDispatcherRestEndpoint [] - > Unhandled exception > java.io.IOException: Connection reset by peer > at sun.nio.ch.FileDispatcherImpl.read0(Native Method) ~[?:1.8.0_275] > at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) > ~[?:1.8.0_275] > at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[?:1.8.0_275] > at sun.nio.ch.IOUtil.read(IOUtil.java:192) ~[?:1.8.0_275] > at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379) > ~[?:1.8.0_275] > at > org.apache.flink.shaded.netty4.io.netty.buffer.PooledByteBuf.setBytes(PooledByteBuf.java:253) > ~[flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1133) > ~[flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:350) > ~[flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at > org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) > [flink-dist_2.12-1.12.0.jar:1.12.0] > at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275] > > 后续不停日志滚动刷新exception >
