Using Scala To Work With Hadoop

Cloudera has a great toolkit to work with Hadoop.  Specifically it is focused on building distributed systems and services on top of the Hadoop Ecosystem. http://cloudera.github.io/cdk/docs/0.2.0/cdk-data/guide.html And the examples are in Scala!!!! Here is how you you work with generic stuff on the ...

Apache Falcon-Data Governance for Hadoop

Apache Falcon is a data governance engine that defines, schedules, and monitors data management policies. Falcon allows Hadoop administrators to centrally define their data pipelines, and then Falcon uses those definitions to auto-generate workflows in Apache Oozie. InMobi is one of ...

How-to Implement Role-based Security in Impala using Apache Sentry

Apache Sentry (incubating) is the Apache Hadoop ecosystem tool for role-based access control (RBAC). In this how-to, I will demonstrate how to implement Sentry for RBAC in Impala. I feel this introduction is best motivated by a use case. Data warehouse ...

Avoiding Split Brainedness in HA Hadoop Clusters

The US Patent Office recently granted Zettaset a patent for the underlying technology in its Hadoop high availability that prevents a "split-brain" situation where multiple master nodes think they're in control of the Hadoop cluster. It's a feather in the ...
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