pyspark 链接mongoDB 时报错 (Class not found exception:com.mongodb.spark.sql.DefaultSource)解决方法
18/05/0811:18:39INFOStateStoreCoordinatorRef:RegisteredStateStoreCoordinatorendpointTraceback(mostrecentcalllast):File"/home/cisco/spark-mongo-test.py",line7,indf=spark.read.format("com.mongodb.spark.