异常信息：

Caused by: java.util.concurrent.CompletionException: akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka.tcp://[email protected]:46479/user/taskmanager_0#327871062]] after [10000 ms]. Message of type [org.apache.flink.runtime.rpc.messages.RemoteRpcInvocation]. A typical reason for `AskTimeoutException` is that the recipient actor didn't send a reply.

解决方法：

配置akka.ask.timeout=120s    web.timeout=120000

或者有人提的升级jdk版本：jdk从jdk1.8.0_11升级到jdk1.8.0_191就好了