我正在尝试在 python 中链接 Spark。下面的代码是test.py，我把它放在下面~/spark/python:
from pyspark import SparkContext, SparkConf
from pyspark.mllib.fpm import FPGrowth
conf = SparkConf().setAppName(appName).setMaster(master)
sc = SparkContext(conf=conf)
data = sc.textFile("data/mllib/sample_fpgrowth.txt")
transactions = data.map(lambda line: line.strip().split(' '))
model = FPGrowth.train(transactions, minSupport=0.2, numPartitions=10)
result = model.freqItemsets().collect()
for fi in result:
print(fi)
我跑python test.py收到此错误消息：
Exception in thread "main" java.lang.IllegalStateException: Library directory '/home/user/spark/lib_managed/jars' does not exist.
at org.apache.spark.launcher.CommandBuilderUtils.checkState(CommandBuilderUtils.java:249)
at org.apache.spark.launcher.AbstractCommandBuilder.buildClassPath(AbstractCommandBuilder.java:208)
at org.apache.spark.launcher.AbstractCommandBuilder.buildJavaCommand(AbstractCommandBuilder.java:119)
at org.apache.spark.launcher.SparkSubmitCommandBuilder.buildSparkSubmitCommand(SparkSubmitCommandBuilder.java:195)
at org.apache.spark.launcher.SparkSubmitCommandBuilder.buildCommand(SparkSubmitCommandBuilder.java:121)
at org.apache.spark.launcher.Main.main(Main.java:86)
Traceback (most recent call last):
File "test.py", line 6, in <module>
conf = SparkConf().setAppName(appName).setMaster(master)
File "/home/user/spark/python/pyspark/conf.py", line 104, in __init__
SparkContext._ensure_initialized()
File "/home/user/spark/python/pyspark/context.py", line 245, in _ensure_initialized
SparkContext._gateway = gateway or launch_gateway()
File "/home/user/spark/python/pyspark/java_gateway.py", line 94, in launch_gateway
raise Exception("Java gateway process exited before sending the driver its port number")
Exception: Java gateway process exited before sending the driver its port number
I move test.py to ~/spark，我得到：
Traceback (most recent call last):
File "test.py", line 1, in <module>
from pyspark import SparkContext, SparkConf
ImportError: No module named pyspark
我从官方网站克隆了 Spark 项目。
操作系统：Ubuntu
Java版本：1.7.0_79
Python版本：2.7.11
谁能给我一些解决这个问题的建议？
Spark程序必须通过“Spark-submit”提交。更多信息：文档 http://spark.apache.org/docs/latest/submitting-applications.html.
你应该尝试运行：$SPARK_HOME/bin/spark-submit test.py代替python test.py.
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