Flink报错akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#931521

问题描述：

flink集群正常启动，但是提交作业之后会报错，再次刷新flink的web界面时，会显示：{"errors":["Could not retrieve the redirect address of the current leader. Please try to refresh."]}

主要报错为：

org.apache.flink.client.program.ProgramInvocationException: Could not retrieve the execution result. (JobID: 26d1ff5f9e4a48ae6e067e207dfbaf67)

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Caused by: org.apache.flink.runtime.client.JobSubmissionException: Failed to submit JobGraph.

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Caused by: org.apache.flink.runtime.rest.util.RestClientException: [Internal server error., <Exception on server side:
akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://flink/user/dispatcher#931521960]] after [10000 ms]. Sender[null] sent message of type "org.apache.flink.runtime.rpc.messages.LocalFencedMessage".

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详细日志为：

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解决方案：升级JDK版本

我的JDK版本为jdk1.8.0_11，升级为jdk1.8.0_221，重新启动集群，重新提交作业，可以正常运行。

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