6.3 Implementations and Systems
We briefly survey a MapReduce framework as well as popular key-value stores and document databases.
6.3.1 Apache Hadoop MapReduce
The open source map-reduce implementation hosted by Apache is called Hadoop.
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Web resources:
–Apache Hadoop: http://hadoop.apache.org/ –documentation page: http://hadoop.apache.org/docs/stable/ –GitHub repository: https://github.com/apache/hadoop |
The entire Hadoop ecosystem consists of several modules which we briefly describe.
HDFS: Hadoop MapReduce runs on the Hadoop Distributed File System (HDFS). In an HDFS installation, a NameNode is responsible for managing metadata and handling ...
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