[elasticsearch] Elasticsearch on YARN

Elasticsearch on YARN is a separate, stand-alone, self-container CLI  that allows Elasticsearch to run (and thus be managed) within a YARN environment.

Currently, due to the inherent limitations in YARN, Elasticsearch for Apache Hadoop is in beta;

YARN doesn't supporst long-live service:

- No provisioning

- No ip/network guarrantees

- Data/node affinity

Next YARN releases plan to address this