pyspark.SparkContext.hadoopRDD

SparkContext.hadoopRDD(inputFormatClass, keyClass, valueClass, keyConverter=None, valueConverter=None, conf=None, batchSize=0)

Read an ‘old’ Hadoop InputFormat with arbitrary key and value class, from an arbitrary Hadoop configuration, which is passed in as a Python dict. This will be converted into a Configuration in Java. The mechanism is the same as for SparkContext.sequenceFile().

Parameters

inputFormatClassstr

fully qualified classname of Hadoop InputFormat (e.g. “org.apache.hadoop.mapreduce.lib.input.TextInputFormat”)

keyClassstr

fully qualified classname of key Writable class (e.g. “org.apache.hadoop.io.Text”)

valueClassstr

fully qualified classname of value Writable class (e.g. “org.apache.hadoop.io.LongWritable”)

keyConverterstr, optional

fully qualified name of a function returning key WritableConverter (None by default)

valueConverterstr, optional

fully qualified name of a function returning value WritableConverter (None by default)

confdict, optional

Hadoop configuration, passed in as a dict (None by default)

batchSizeint, optional

The number of Python objects represented as a single Java object. (default 0, choose batchSize automatically)

pyspark.SparkContext.hadoopFile pyspark.SparkContext.newAPIHadoopFile