App Engine Python SDK  v1.6.9 rev.445
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Public Member Functions | List of all members
google.appengine.ext.mapreduce.mapreduce_pipeline.MapPipeline Class Reference
Inheritance diagram for google.appengine.ext.mapreduce.mapreduce_pipeline.MapPipeline:
google.appengine.ext.mapreduce.pipeline_base._OutputSlotsMixin google.appengine.ext.mapreduce.pipeline_base.PipelineBase

Public Member Functions

def run
 
- Public Member Functions inherited from google.appengine.ext.mapreduce.pipeline_base.PipelineBase
def start
 

Additional Inherited Members

- Static Public Attributes inherited from google.appengine.ext.mapreduce.pipeline_base._OutputSlotsMixin
list output_names = ["result_status"]
 

Detailed Description

Runs the map stage of MapReduce.

Iterates over input reader and outputs data into key/value format
for shuffler consumption.

Args:
  job_name: mapreduce job name as string.
  mapper_spec: specification of map handler function as string.
  input_reader_spec: input reader specification as string.
  params: mapper and input reader parameters as dict.
  shards: number of shards to start as int.

Returns:
  list of filenames written to by this mapper, one for each shard.

The documentation for this class was generated from the following file: