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.. _hadoop-connector:
============================
MongoDB Connector for Hadoop
============================
.. default-domain:: mongodb
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The MongoDB Connector for Hadoop is a plugin for Hadoop that provides
the ability to use MongoDB as an input source and/or an output destination.
The source code is available on `Github
<https://github.com/mongodb/mongo-hadoop>`_ where you can find a more
comprehensive `wiki
<https://github.com/mongodb/mongo-hadoop/wiki>`_.
If you have questions please email the `mongodb-user Mailing List
<http://groups.google.com/group/mongodb-user>`_. For any issues please
file a ticket in `Jira <https://jira.mongodb.org/browse/HADOOP>`_.
This guide also includes the following documentation:
- :doc:`/tutorial/getting-started-with-hadoop`
- :doc:`/use-cases/hadoop`
Installation
------------
1. Obtain the Hadoop connector. You may either download the JARs from the
`Maven Central Repository
<http://repo1.maven.org/maven2/org/mongodb/mongo-hadoop/>` or `build it
yourself
<https://github.com/mongodb/mongo-hadoop/blob/master/README.md#building>`_.
The JARs are universal and will work with any version of Hadoop.
2. Obtain a JAR for the :doc:`MongoDB Java Driver </drivers/java>`.
3. Move these JARs onto each node of the Hadoop cluster.
You may provision each node so that the jars are somewhere on Hadoop's `CLASSPATH`
(e.g. ``$HADOOP_PREFIX/share/hadoop/common``), or you can use the Hadoop
`DistributedCache <http://hadoop.apache.org/docs/stable/api/org/apache/hadoop/filecache/DistributedCache.html>`_
to move the JARs onto pre-existing nodes.
For more complete install instructions, please see the installation instructions
for your platform on the `Hadoop Connector wiki <https://github.com/mongodb/mongo-hadoop/wiki>`_.
Presentations
-------------
- `MongoDB and Hadoop: Driving Business Insights <http://www.mongodb.com/presentations/mongodb-and-hadoop-driving-business-insights>`_
by Sandeep Parikh, 2014
- `Webinar: Using MongoDB + Hadoop Together <http://www.mongodb.com/presentations/webinar-using-hadoop-mongodb-together>`_
by Buzz Moschetti, 2014
- `MongoDB, Hadoop and HuMONGOus Data
<http://www.mongodb.com/presentations/mongosf-2012/mongodb-and-hadoop>`_
by Steve Francia at MongoSF 2012
- `MongoDB + Hadoop
<http://www.mongodb.com/presentations/mongodb-philly/2012/mongodb-hadoop>`_
by Brendan McAdams at MongoDB Philly 2012
- `mongo-hadoopで始める大規模ログ解析 〜低コストへの新たな道〜 (BigData
Analysis with Mongo-Hadoop)
<http://www.mongodb.com/presentations/mongodb-tokyo-2012/big-data-analysis-with-mongo-hadoop>`_
by Daichi Morifuji at MongoTokyo 2012
Blog Posts
----------
- `MongoDB Hadoop Connector Tour <http://www.mongodb.com/blog/post/mongodb-connector-hadoop-%E2%80%93-tour-what%E2%80%99s-new-v11>`_
- `MongoDB Hadoop Connector Announcement <http://blog.mongodb.com/post/20840407875/mongodb-hadoop-connector-announced>`_
- `MongoDB Hadoop Connector 1.4 Improvements <https://mongodbcom-rails.corp.mongodb.com/blog/post/mongodb-connector-for-hadoop-1-4>`_
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