报错如下：

: org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 3.0 failed 4 times, most recent failure: Lost task 0.3 in stage 3.0 (TID 19, 192.168.10.103, executor 1): org.apache.spark.SparkException: 
Error from python worker:
  Traceback (most recent call last):
    File "/usr/lib64/python2.6/runpy.py", line 104, in _run_module_as_main
      loader, code, fname = _get_module_details(mod_name)
    File "/usr/lib64/python2.6/runpy.py", line 79, in _get_module_details
      loader = get_loader(mod_name)
    File "/usr/lib64/python2.6/pkgutil.py", line 456, in get_loader
      return find_loader(fullname)
    File "/usr/lib64/python2.6/pkgutil.py", line 466, in find_loader
      for importer in iter_importers(fullname):
    File "/usr/lib64/python2.6/pkgutil.py", line 422, in iter_importers
      __import__(pkg)
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/__init__.py", line 51, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/context.py", line 31, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/accumulators.py", line 97, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/serializers.py", line 71, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/cloudpickle.py", line 246, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/cloudpickle.py", line 270, in CloudPickler
  NameError: name 'memoryview' is not defined
PYTHONPATH was:
  /opt/module/spark/python/lib/pyspark.zip:/opt/module/spark/python/lib/py4j-0.10.7-src.zip:/opt/module/spark/jars/spark-core_2.11-2.4.0.jar:/opt/module/spark/python/lib/py4j-0.10.7-src.zip:/opt/module/spark/python:
org.apache.spark.SparkException: No port number in pyspark.daemon's stdout
	at org.apache.spark.api.python.PythonWorkerFactory.startDaemon(PythonWorkerFactory.scala:204)
	at org.apache.spark.api.python.PythonWorkerFactory.createThroughDaemon(PythonWorkerFactory.scala:122)
	at org.apache.spark.api.python.PythonWorkerFactory.create(PythonWorkerFactory.scala:95)
	at org.apache.spark.SparkEnv.createPythonWorker(SparkEnv.scala:117)
	at org.apache.spark.api.python.BasePythonRunner.compute(PythonRunner.scala:108)
	at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:65)
	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:324)
	at org.apache.spark.rdd.RDD.iterator(RDD.scala:288)
	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
	at org.apache.spark.scheduler.Task.run(Task.scala:121)
	at org.apache.spark.executor.Executor$TaskRunner$$anonfun$10.apply(Executor.scala:402)
	at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1360)
	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:408)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Driver stacktrace:
	at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1887)
	at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1875)
	at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1874)
	at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
	at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
	at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1874)
	at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:926)
	at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:926)
	at scala.Option.foreach(Option.scala:257)
	at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:926)
	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:2108)
	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2057)
	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2046)
	at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:49)
	at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:737)
	at org.apache.spark.SparkContext.runJob(SparkContext.scala:2061)
	at org.apache.spark.SparkContext.runJob(SparkContext.scala:2082)
	at org.apache.spark.SparkContext.runJob(SparkContext.scala:2101)
	at org.apache.spark.SparkContext.runJob(SparkContext.scala:2126)
	at org.apache.spark.rdd.RDD$$anonfun$collect$1.apply(RDD.scala:945)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
	at org.apache.spark.rdd.RDD.withScope(RDD.scala:363)
	at org.apache.spark.rdd.RDD.collect(RDD.scala:944)
	at org.apache.spark.api.python.PythonRDD$.collectAndServe(PythonRDD.scala:166)
	at org.apache.spark.api.python.PythonRDD.collectAndServe(PythonRDD.scala)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
	at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
	at py4j.Gateway.invoke(Gateway.java:282)
	at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
	at py4j.commands.CallCommand.execute(CallCommand.java:79)
	at py4j.GatewayConnection.run(GatewayConnection.java:238)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.spark.SparkException: 
Error from python worker:
  Traceback (most recent call last):
    File "/usr/lib64/python2.6/runpy.py", line 104, in _run_module_as_main
      loader, code, fname = _get_module_details(mod_name)
    File "/usr/lib64/python2.6/runpy.py", line 79, in _get_module_details
      loader = get_loader(mod_name)
    File "/usr/lib64/python2.6/pkgutil.py", line 456, in get_loader
      return find_loader(fullname)
    File "/usr/lib64/python2.6/pkgutil.py", line 466, in find_loader
      for importer in iter_importers(fullname):
    File "/usr/lib64/python2.6/pkgutil.py", line 422, in iter_importers
      __import__(pkg)
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/__init__.py", line 51, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/context.py", line 31, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/accumulators.py", line 97, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/serializers.py", line 71, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/cloudpickle.py", line 246, in <module>
    File "/opt/module/spark/python/lib/pyspark.zip/pyspark/cloudpickle.py", line 270, in CloudPickler
  NameError: name 'memoryview' is not defined

原因：亲，你是不是执行了两次？？执行一次就行了哦或者换一个变量名