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SequenceIQ is a new Hortonworks Technology Partner and recently achieved HDP and YARN Ready certification for Cloudbreak, the SequenceIQs Hadoop as a Service API. In this guest blog, SequenceIQ Co-founder and CTO Janos Matyas (@sequenceiq), describes provisioning and autoscaling HDP cluster with Cloudbreak. During our daily work at SequenceIQ, we are provisioning HDP clusters on different environments.

"The motivation for adding security to Apache Hadoop actually had little to do with traditional notions of security in defending against hackers since all large Hadoop clusters are behind corporate firewalls that only allow employees access. Instead, the motivation was simply that security would allow us to use Hadoop more effectively to pool resources between disjointed groups. Larger clusters are much cheaper to operate and require fewer copies of duplicated data."

Delegation tokens play a critical part in Apache Hadoop security, and understanding their design and use is important for comprehending Hadoop's security model.