Plugin for Sahara with MapR

This specification proposes to add MapR plugin with MapR Distribution of Hadoop in Sahara.

Problem description

The MapR Distribution for Apache Hadoop provides organizations with an enterprise-grade distributed data platform to reliably store and process big data. MapR packages a broad set of Apache open source ecosystem projects enabling batch, interactive, or real-time applications. The data platform and the projects are all tied together through an advanced management console to monitor and manage the entire system.

MapR is one of the largest distributions for Hadoop supporting more than 20 open source projects. MapR also supports multiple versions of the various individual projects thereby allowing users to migrate to the latest versions at their own pace. The table below shows all of the projects actively supported in the current GA version of MapR Distribution for Hadoop as well as in the next Beta release.[1]

Proposed change

MapR plugin implementation will support Hadoop 0.20.2 and Hadoop 2.4.1. Plugin will support key Sahara features:

  • Cinder integration

  • Cluster scaling/decommission

  • EDP

  • Cluster topology validation

  • Integration with Swift

Plugin will be able to install following services:

  • MapR-FS

  • YARN

  • Oozie (two versions are supported)

  • HBase

  • Hive (two versions are supported)

  • Pig

  • Mahout

  • Webserver

MapR plugin will support the following OS: Ubuntu 14.04 and CentOS 6.5.

MapR plugin will support the following node types:

  • Nodes Running ZooKeeper and CLDB

  • Nodes for Data Storage and Processing

  • Edge Nodes

In a production MapR cluster, some nodes are typically dedicated to cluster coordination and management, and other nodes are tasked with data storage and processing duties. An edge node provides user access to the cluster, concentrating open user privileges on a single host.



Data model impact


REST API impact


Other end user impact


Deployer impact


Developer impact


Sahara-image-elements impact

MapR plugin uses specific pre-installed images with MapR local repository files.

Sahara-dashboard / Horizon impact




Primary assignee:


Other contributors:


Work Items

  • Add implementation of plugin for bare images.


Depends on OpenStack requirements.


  • Add unit tests to Sahara to cover basic functionality of plugin

  • Add integration tests to Sahara

Documentation Impact

MapR plugin documentation should be added to the plugin section of Sahara docs.