我正在使用 Cloudera 快速启动 VM 来测试一些 pyspark 工作。对于一项任务，我需要添加 spark-csv 包。这就是我所做的：
PYSPARK_DRIVER_PYTHON=ipython pyspark -- packages com.databricks:spark-csv_2.10:1.3.0
pyspark 启动良好，但我确实收到以下警告：
**16/02/09 17:41:22 WARN util.Utils: Your hostname, quickstart.cloudera resolves to a loopback address: 127.0.0.1; using 10.0.2.15 instead (on interface eth0)
16/02/09 17:41:22 WARN util.Utils: Set SPARK_LOCAL_IP if you need to bind to another address
16/02/09 17:41:26 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable**
然后我在 pyspark 中运行我的代码：
yelp_df = sqlCtx.load(
source="com.databricks.spark.csv",
header = 'true',
inferSchema = 'true',
path = 'file:///directory/file.csv')
但我收到一条错误消息：
Py4JJavaError: An error occurred while calling o19.load.: java.lang.RuntimeException: Failed to load class for data source: com.databricks.spark.csv at scala.sys.package$.error(package.scala:27)
可能出了什么问题？在此先感谢您的帮助。