Vinod Kumar Vavilapalli created YARN-4757: ---------------------------------------------
Summary: [Umbrella] Simplified discovery of services via DNS mechanisms Key: YARN-4757 URL: https://issues.apache.org/jira/browse/YARN-4757 Project: Hadoop YARN Issue Type: New Feature Reporter: Vinod Kumar Vavilapalli [See overview doc at YARN-4692, copying the sub-section (3.2.10.2) to track all related efforts.] In addition to completing the present story of service-registry (YARN-913), we also need to simplify the access to the registry entries. The existing read mechanisms of the YARN Service Registry are currently limited to a registry specific (java) API and a REST interface. In practice, this makes it very difficult for wiring up existing clients and services. For e.g, dynamic configuration of dependent endpoints of a service is not easy to implement using the present registry-read mechanisms, *without* code-changes to existing services. A good solution to this is to expose the registry information through a more generic and widely used discovery mechanism: DNS. Service Discovery via DNS uses the well-known DNS interfaces to browse the network for services. YARN-913 in fact talked about such a DNS based mechanism but left it as a future task. (Task) Having the registry information exposed via DNS simplifies the life of services. -- This message was sent by Atlassian JIRA (v6.3.4#6332)