问题描述

我下载了flink1.8版本后，按说明解压，执行start-cluster.sh后，访问 localhost:8081 页面，taskmanager个数一直为0,查看日志发现是taskmanager没有启动起来。

报错信息如下：

2019-05-24 16:59:10,896 INFO  org.apache.flink.runtime.taskexecutor.TaskExecutor                - Could not resolve ResourceManager address     akka.tcp://flink@localhost:6123/user/resourcemanager, retrying in 10000 ms: Ask timed out on [ActorSelection[Anchor(akka.tcp://flink@localhost:6123/), Path(/user/resourcemanager)]] after [10000 ms]. Sender[null] sent message of type "akka.actor.Identify"..
2019-05-24 16:59:20,929 ERROR akka.remote.Remoting                                          - [B cannot be cast to [C
java.lang.ClassCastException: [B cannot be cast to [C
at akka.remote.artery.FastHash$.ofString(LruBoundedCache.scala:18)
at akka.remote.serialization.ActorRefResolveCache.hash(ActorRefResolveCache.scala:61)
at akka.remote.serialization.ActorRefResolveCache.hash(ActorRefResolveCache.scala:55)
at akka.remote.artery.LruBoundedCache.getOrCompute(LruBoundedCache.scala:110)
at akka.remote.RemoteActorRefProvider.resolveActorRef(RemoteActorRefProvider.scala:403)
at akka.actor.SerializedActorRef.readResolve(ActorRef.scala:433)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at java.base/java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1151)
at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2060)
at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1559)
at java.base/java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2319)
at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2213)
at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2051)
at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1559)
at java.base/java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2319)
at java.base/java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2213)
at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2051)
at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1559)
at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:423)
at akka.serialization.JavaSerializer.$anonfun$fromBinary$1(Serializer.scala:328)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58)
at akka.serialization.JavaSerializer.fromBinary(Serializer.scala:328)
at akka.serialization.Serialization.deserializeByteArray(Serialization.scala:156)
at akka.serialization.Serialization.$anonfun$deserialize$2(Serialization.scala:142)
at scala.util.Try$.apply(Try.scala:209)
at akka.serialization.Serialization.deserialize(Serialization.scala:136)
at akka.remote.MessageSerializer$.deserialize(MessageSerializer.scala:33)
at akka.remote.DefaultMessageDispatcher.payload$lzycompute$1(Endpoint.scala:64)
at akka.remote.DefaultMessageDispatcher.payload$1(Endpoint.scala:64)
at akka.remote.DefaultMessageDispatcher.dispatch(Endpoint.scala:82)
at akka.remote.EndpointReader$$anonfun$receive$2.applyOrElse(Endpoint.scala:982)
at akka.actor.Actor.aroundReceive(Actor.scala:502)
at akka.actor.Actor.aroundReceive$(Actor.scala:500)
at akka.remote.EndpointActor.aroundReceive(Endpoint.scala:446)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
at akka.actor.ActorCell.invoke(ActorCell.scala:495)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
at akka.dispatch.Mailbox.run(Mailbox.scala:224)
at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:283)
at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1603)
at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)

启动后taskmanager个数为0