Spark作业抛出错误（spark node heartbeat error）

Question

我使用带有2个节点集群的Spark 2.0（Windows机器和禁用防火墙）。我正在运行套接字程序，我收到以下错误：

16/10/12 12:10:41 WARN NettyRpcEndpointRef: Error sending message [message = Heartbeat(2,[Lscala.Tuple2;@1ee84de,BlockManagerId(2, IP1, 2726))] in 1 attempts
org.apache.spark.rpc.RpcTimeoutException: Futures timed out after [30 seconds]. This timeout is controlled by spark.executor.heartbeatInterval
    at org.apache.spark.rpc.RpcTimeout.org$apache$spark$rpc$RpcTimeout$$createRpcTimeoutException(RpcTimeout.scala:48)
    at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:63)
    at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:59)
    at scala.PartialFunction$OrElse.apply(PartialFunction.scala:167)
    at org.apache.spark.rpc.RpcTimeout.awaitResult(RpcTimeout.scala:83)
    at org.apache.spark.rpc.RpcEndpointRef.askWithRetry(RpcEndpointRef.scala:102)
    at org.apache.spark.executor.Executor.org$apache$spark$executor$Executor$$reportHeartBeat(Executor.scala:518)
    at org.apache.spark.executor.Executor$$anon$1$$anonfun$run$1.apply$mcV$sp(Executor.scala:547)
    at org.apache.spark.executor.Executor$$anon$1$$anonfun$run$1.apply(Executor.scala:547)
    at org.apache.spark.executor.Executor$$anon$1$$anonfun$run$1.apply(Executor.scala:547)
    at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1857)
    at org.apache.spark.executor.Executor$$anon$1.run(Executor.scala:547)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.concurrent.TimeoutException: Futures timed out after [30 seconds]
    at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)
    at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)
    at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:190)
    at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
    at scala.concurrent.Await$.result(package.scala:190)
    at org.apache.spark.rpc.RpcTimeout.awaitResult(RpcTimeout.scala:81)

我已将值spark.executor.heartbeatInterval设置为30.我仍然收到错误消息。

我的环境：

服务器1： 我是通过spark-class org.apache.spark.deploy.master.Master开始掌握的 我是按spark-class org.apache.spark.deploy.worker.Worker spark://server1:7077

开始工作的

服务器2（ip2）： 我是按spark-class org.apache.spark.deploy.worker.Worker spark://172.16.2.95:7077

开始工作的

驱动程序位于服务器1中：spark-submit --master spark://server1:7077 --num-executors 2 --executor-cores 1 C:\sparkpoc\streamexample.py

节点：

任何人都可以帮助我吗？