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Open Source based Hyper-Converged Infrastructures and Hadoop

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According to a report from Simplivity [1] Hyper-Converged Infrastructures are used by more than 50% of the interviewed businesses, tendentious increasing. But what does this mean for BigData solutions, and Hadoop especially? What tools and technologies can be used, what are the limitations and the gains from such a solution? To build a production ready and reliable private cloud to support Hadoop clusters as well as on-demand and static I have made great experience with OpenStack, Saltstack and the Sahara plugin for Openstack. Openstack supports Hadoop-on-demand per Sahara, it's also convenient to use VM's and install a Hadoop Distribution within, especially for static clusters with special setups. The Openstack project provides ready to go images per [2], as example for Vanilla 2.7.1 based Hadoop installations. As an additional benefit, Openstack supports Docker [3], which adds an additional layer of flexibility for additional services, like Kafka [4] or SolR [5]. Costs