Skip navigation links

Package com.hazelcast.mapreduce

Deprecated.
MapReduce is deprecated and will be removed in 4.0. For map aggregations, you can use Aggregator on IMap. For general data processing, it is superseded by Hazelcast Jet.
This package contains the MapReduce API definition for Hazelcast.
All map reduce operations running in a distributed manner inside the active Hazelcast cluster.

See: Description

Package com.hazelcast.mapreduce Description

This package contains the MapReduce API definition for Hazelcast.
All map reduce operations running in a distributed manner inside the active Hazelcast cluster. Therefor Mapper, Combiner and Reducer implementations need to be fully serializable by Hazelcast. Any of the existing serialization patterns are available for those classes, too.
If custom KeyValueSource is provided above statement also applies to this implementation.

For a basic idea how to use this framework see Job or Mapper, Combiner or Reducer.

Since:
3.2
Skip navigation links

Copyright © 2020 Hazelcast, Inc.. All Rights Reserved.