During the past three years Oozie has become the de-facto workflow scheduling system for Hadoop. Oozie has proven itself as a scalable, secure and multi-tenant service. Oozie stably processes more than 45% of the jobs run across more than 25 Hadoop clusters in Yahoo. At the same time adoption
in other enterprises has increased substantially since Oozie was contributed to the Apache community. We attribute these achievements to design decisions
that was selected to be presented at a workshop during the ACM/SIGMOD conference. This presentation covers the key architectural design choices described in the paper. Operational metrics will be used to illustrate production experience at Yahoo, and we will also include a quick tutorial.