flink1.7报错：akka.pattern.AskTimeoutException: Ask timed out on

问题描述

flink能正常启动，但是启动任务就失败，哪怕启动examples下面的示例程序也是报错

报错内容

akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#-738694886]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
	at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
	at akka.actor.Scheduler$$anon$4.run(Scheduler.scala:126)
	at scala.concurrent.Future$InternalCallbackExecutor$.unbatchedExecute(Future.scala:601)
	at scala.concurrent.BatchingExecutor$class.execute(BatchingExecutor.scala:109)
	at scala.concurrent.Future$InternalCallbackExecutor$.execute(Future.scala:599)
	at akka.actor.LightArrayRevolverScheduler$TaskHolder.executeTask(LightArrayRevolverScheduler.scala:329)
	at akka.actor.LightArrayRevolverScheduler$$anon$4.executeBucket$1(LightArrayRevolverScheduler.scala:280)
	at akka.actor.LightArrayRevolverScheduler$$anon$4.nextTick(LightArrayRevolverScheduler.scala:284)
	at akka.actor.LightArrayRevolverScheduler$$anon$4.run(LightArrayRevolverScheduler.scala:236)
	at java.lang.Thread.run(Thread.java:745)
2020-02-28 21:54:11,924 ERROR org.apache.flink.runtime.rest.handler.job.JobsOverviewHandler  - Could not retrieve the redirect address.
java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#-738694886]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
	at java.util.concurrent.CompletableFuture.internalComplete(CompletableFuture.java:205)
	at java.util.concurrent.CompletableFuture$ThenApply.run(CompletableFuture.java:723)
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:193)
	at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2361)
	at org.apache.flink.runtime.concurrent.FutureUtils$1.onComplete(FutureUtils.java:772)
	at akka.dispatch.OnComplete.internal(Future.scala:258)
	at akka.dispatch.OnComplete.internal(Future.scala:256)
	at akka.dispatch.japi$CallbackBridge.apply(Future.scala:186)
	at akka.dispatch.japi$CallbackBridge.apply(Future.scala:183)
	at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36)
	at org.apache.flink.runtime.concurrent.Executors$DirectExecutionContext.execute(Executors.java:83)
	at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:44)
	at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:252)
	at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:603)
	at akka.actor.Scheduler$$anon$4.run(Scheduler.scala:126)
	at scala.concurrent.Future$InternalCallbackExecutor$.unbatchedExecute(Future.scala:601)
	at scala.concurrent.BatchingExecutor$class.execute(BatchingExecutor.scala:109)
	at scala.concurrent.Future$InternalCallbackExecutor$.execute(Future.scala:599)
	at akka.actor.LightArrayRevolverScheduler$TaskHolder.executeTask(LightArrayRevolverScheduler.scala:329)
	at akka.actor.LightArrayRevolverScheduler$$anon$4.executeBucket$1(LightArrayRevolverScheduler.scala:280)
	at akka.actor.LightArrayRevolverScheduler$$anon$4.nextTick(LightArrayRevolverScheduler.scala:284)
	at akka.actor.LightArrayRevolverScheduler$$anon$4.run(LightArrayRevolverScheduler.scala:236)
	at java.lang.Thread.run(Thread.java:745)
Caused by: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#-738694886]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".
	at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:604)
	... 9 more
2020-02-28 21:54:12,904 ERROR org.apache.flink.runtime.rest.handler.cluster.ClusterOverviewHandler  - Could not retrieve the redirect address.

　

解决：

原因是jdk版本和flink版本有冲突

我用的jdk版本是1.8.0_11，flink 1.7

把jdk换成更高的版本，再重启集群即可

我现在用的jdk版本是1.8.0_202