flink1.10.2 读取mysql并打印数据,本地可以执行,yarn上报错,什么原因呢

Caused by: org.apache.flink.runtime.concurrent.FutureUtils$RetryException:  Could not complete the operation. Number of retries has been exhausted.  at  org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$8(FutureUtils.java:284)  at  java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:774)  at  java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:750)  at  java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488)  at  java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)  at  org.apache.flink.runtime.rest.RestClient.lambda$submitRequest$1(RestClient.java:342)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:500)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:493)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:472)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:413)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:538)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:531)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:111)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:323)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:339)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)  at  org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)  at java.lang.Thread.run(Thread.java:748)  Caused by: java.util.concurrent.CompletionException:  org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannel$AnnotatedConnectException:  拒绝连接: emr-worker-4.cluster/xxxx:40751  at  java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)  at  java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)  at  java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:957)  at  java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:940)  ... 19 more  Caused by:  org.apache.flink.shaded.netty4.io.netty.channel.AbstractChannel$AnnotatedConnectException:  拒绝连接: emr-worker-4.cluster-1/xxx:40751  Caused by: java.net.ConnectException: 拒绝连接  at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:714)  at  org.apache.flink.shaded.netty4.io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:327)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:336)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:685)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:632)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:549)  at  org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:511)  at  org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)  at  org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)  at java.lang.Thread.run(Thread.java:748)*来自志愿者整理的flink邮件归档