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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-3372) Collision-free unique bindings & refresh APIs for service records
Date Thu, 19 Mar 2015 02:47:39 GMT
Gopal V created YARN-3372:
-----------------------------

             Summary: Collision-free unique bindings & refresh APIs for service records
                 Key: YARN-3372
                 URL: https://issues.apache.org/jira/browse/YARN-3372
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: yarn
            Reporter: Gopal V


The current bind() operation binds to a hard entry name for the service record, which makes
it impossible for a truly distributed application without a centralized service to register
without pre-determined naming conventions.

The uniqueness does not need to guarantee ordering or any other leakage of abstractions, merely
that each bind() returns a unique path the record was bound to. And that the TTL refresh can
periodically update that exact record as an active API.

These are state-less auto-configuration mechanisms inspired by the IPv6 improvements over
DNS for resolution. Instead of relying ICMPv6, this uses the registry to keep a collective
memory of unique identities to which endpoints are delegated to.

This is only obliquely related to the Slider registration as even those do not track the generational
ids for restarted daemons from the same container-id.



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