Integrating Lucene with HBase
The article describes overall design and implementation of integrating Lucene search library with HBase back end. It describes integration architecture, implementation and HBase tables design
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Uncovering mysteries of InputFormat: Providing better control for your Map Reduce execution.
In their article authors, Boris Lublinsky and Mike Segel, show how to leverage custom InputFormat class implementation to tighter control execution strategy of Maps in Hadoop Map Reduce jobs.
Extending Oozie
In this article authors show how leverage Oozie extensibility to implement custom language extensions. This approach can be viewed a specializing workflow language for a given company/line of business.
Oozie by Example
End to end Oozie example, including process design, resource coordinator and workflow implementation