Spark只能用python 2

Question

初學者在這裏Spark。

uname -a 

的Linux的Debian 3.2.0-4-AMD64＃1 SMP的Debian 3.2.82-1 x86_64的GNU/Linux的

我在http://spark.apache.org/downloads.html

下載的默認的Spark我想用它與Python3。 我添加以下行到我的.bashrc：

export SPRK_HOME=/home/rictus/spark-2.0.2-bin-hadoop2.7 
export PATH=$SPARK_HOME/bin:$PATH 
export PYSPARK_PYTHON=python3 

而只是爲了測試，我在 /home/rictus/spark-2.0.2-bin-hadoop2.7/examples/推出蟒蛇例子的src /主/蟒 使用下面的命令行

. /home/rictus/.bashrc 
cd /home/rictus/spark-2.0.2-bin-hadoop2.7/examples/src/main/python 
spark-submit pi.py 

火花發射，並停止與一個stacktrace從蟒來：

 
rictus:~/spark-2.0.2-bin-hadoop2.7/examples/src/main/python$ spark-submit pi.py 
16/11/22 22:51:49 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 
16/11/22 22:51:50 WARN Utils: Your hostname, debian resolves to a loopback address: 127.0.1.1; using 10.0.2.15 instead (on interface eth0) 
16/11/22 22:51:50 WARN Utils: Set SPARK_LOCAL_IP if you need to bind to another address 
[Stage 0:>               (0 + 0)/2]16/11/22 22:51:53 ERROR Executor: Exception in task 0.0 in stage 0.0 (TID 0) 
org.apache.spark.api.python.PythonException: Traceback (most recent call last): 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/pyspark.zip/pyspark/worker.py", line 143, in main 
    importlib.invalidate_caches() 
AttributeError: 'module' object has no attribute 'invalidate_caches' 

    at org.apache.spark.api.python.PythonRunner$$anon$1.read(PythonRDD.scala:193) 
    at org.apache.spark.api.python.PythonRunner$$anon$1.(PythonRDD.scala:234) 
    at org.apache.spark.api.python.PythonRunner.compute(PythonRDD.scala:152) 
    at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:63) 
    at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319) 
    at org.apache.spark.rdd.RDD.iterator(RDD.scala:283) 
    at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70) 
    at org.apache.spark.scheduler.Task.run(Task.scala:86) 
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:745) 
16/11/22 22:51:53 WARN TaskSetManager: Lost task 0.0 in stage 0.0 (TID 0, localhost): org.apache.spark.api.python.PythonException: Traceback (most recent call last): 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/pyspark.zip/pyspark/worker.py", line 143, in main 
    importlib.invalidate_caches() 
AttributeError: 'module' object has no attribute 'invalidate_caches' 

    at org.apache.spark.api.python.PythonRunner$$anon$1.read(PythonRDD.scala:193) 
    at org.apache.spark.api.python.PythonRunner$$anon$1.(PythonRDD.scala:234) 
    at org.apache.spark.api.python.PythonRunner.compute(PythonRDD.scala:152) 
    at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:63) 
    at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319) 
    at org.apache.spark.rdd.RDD.iterator(RDD.scala:283) 
    at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70) 
    at org.apache.spark.scheduler.Task.run(Task.scala:86) 
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:745) 

16/11/22 22:51:53 ERROR TaskSetManager: Task 0 in stage 0.0 failed 1 times; aborting job 
[Stage 0:>               (0 + 1)/2]16/11/22 22:51:53 WARN TaskSetManager: Lost task 1.0 in stage 0.0 (TID 1, localhost): TaskKilled (killed intentionally) 
Traceback (most recent call last): 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/examples/src/main/python/pi.py", line 43, in 
    count = spark.sparkContext.parallelize(range(1, n + 1), partitions).map(f).reduce(add) 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/pyspark.zip/pyspark/rdd.py", line 802, in reduce 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/pyspark.zip/pyspark/rdd.py", line 776, in collect 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/py4j-0.10.3-src.zip/py4j/java_gateway.py", line 1133, in __call__ 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/pyspark.zip/pyspark/sql/utils.py", line 63, in deco 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/py4j-0.10.3-src.zip/py4j/protocol.py", line 319, in get_return_value 
py4j.protocol.Py4JJavaError: An error occurred while calling z:org.apache.spark.api.python.PythonRDD.collectAndServe. 
: org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 0.0 failed 1 times, most recent failure: Lost task 0.0 in stage 0.0 (TID 0, localhost): org.apache.spark.api.python.PythonException: Traceback (most recent call last): 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/pyspark.zip/pyspark/worker.py", line 143, in main 
    importlib.invalidate_caches() 
AttributeError: 'module' object has no attribute 'invalidate_caches' 

    at org.apache.spark.api.python.PythonRunner$$anon$1.read(PythonRDD.scala:193) 
    at org.apache.spark.api.python.PythonRunner$$anon$1.(PythonRDD.scala:234) 
    at org.apache.spark.api.python.PythonRunner.compute(PythonRDD.scala:152) 
    at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:63) 
    at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319) 
    at org.apache.spark.rdd.RDD.iterator(RDD.scala:283) 
    at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70) 
    at org.apache.spark.scheduler.Task.run(Task.scala:86) 
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:745) 

Driver stacktrace: 
    at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1454) 
    at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1442) 
    at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1441) 
    at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) 
    at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48) 
    at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1441) 
    at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:811) 
    at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:811) 
    at scala.Option.foreach(Option.scala:257) 
    at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:811) 
    at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:1667) 
    at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1622) 
    at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1611) 
    at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48) 
    at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:632) 
    at org.apache.spark.SparkContext.runJob(SparkContext.scala:1873) 
    at org.apache.spark.SparkContext.runJob(SparkContext.scala:1886) 
    at org.apache.spark.SparkContext.runJob(SparkContext.scala:1899) 
    at org.apache.spark.SparkContext.runJob(SparkContext.scala:1913) 
    at org.apache.spark.rdd.RDD$$anonfun$collect$1.apply(RDD.scala:912) 
    at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151) 
    at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112) 
    at org.apache.spark.rdd.RDD.withScope(RDD.scala:358) 
    at org.apache.spark.rdd.RDD.collect(RDD.scala:911) 
    at org.apache.spark.api.python.PythonRDD$.collectAndServe(PythonRDD.scala:453) 
    at org.apache.spark.api.python.PythonRDD.collectAndServe(PythonRDD.scala) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:606) 
    at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:237) 
    at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357) 
    at py4j.Gateway.invoke(Gateway.java:280) 
    at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132) 
    at py4j.commands.CallCommand.execute(CallCommand.java:79) 
    at py4j.GatewayConnection.run(GatewayConnection.java:214) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: org.apache.spark.api.python.PythonException: Traceback (most recent call last): 
    File "/home/rictus/spark-2.0.2-bin-hadoop2.7/python/lib/pyspark.zip/pyspark/worker.py", line 143, in main 
    importlib.invalidate_caches() 
AttributeError: 'module' object has no attribute 'invalidate_caches' 

    at org.apache.spark.api.python.PythonRunner$$anon$1.read(PythonRDD.scala:193) 
    at org.apache.spark.api.python.PythonRunner$$anon$1.(PythonRDD.scala:234) 
    at org.apache.spark.api.python.PythonRunner.compute(PythonRDD.scala:152) 
    at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:63) 
    at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319) 
    at org.apache.spark.rdd.RDD.iterator(RDD.scala:283) 
    at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70) 
    at org.apache.spark.scheduler.Task.run(Task.scala:86) 
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    ... 1 more 

我很困惑。文件pi.py似乎不是Python2特有的。

我不知道做什麼用的stacktrace的這部分做的事：

AttributeError: 'module' object has no attribute 'invalidate_caches'

在我.bashrc文件，如果我改變PYSPARK_PYTHON從python3到python2，一切工作正常。

我的Spark編譯器只能用於Python2嗎？這對我來說似乎很愚蠢。有什麼我失蹤？

Answer 1

Apache Spark不支持3.4之前的Python 3版本。你應該把你的Python安裝更新到更新的版本。