Sanjay Radia commented on YARN-2683:

Feedback on v003:
* In the description for the "enabled" key, you should not mention who starts 
the registry and who creates which directories. That may change over time.
That information should in the main documentation.
* Gour saha's comment above
* Nit: in some of the descriptions like "Zookeeper session timeout" you should 
say "Registry Zookeeper session timeout" (This is obvious from the key name .. 
but ..)
* Security - I think this explanation could be improved.
** Briefly state that it is based ZK security and briefly describe it 2-3 
sentences and how it will integrate with the Hadoop authentication.
** I am not completely clear on the usage model for system accounts. If one 
desires oozie's name to be registered then we need to add oozie's realm? This 
will be hard to manage over time. I am also confused by the  
sasl:ad...@example.com example; is this to allow an admin to manually 
add/remove  entries for some services? Can we please chat  offline and we can 
help clarify this part of the document.

> registry config options: document and move to core-default
> ----------------------------------------------------------
>                 Key: YARN-2683
>                 URL: https://issues.apache.org/jira/browse/YARN-2683
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: HADOOP-10530-005.patch, YARN-2683-001.patch, 
> YARN-2683-002.patch, YARN-2683-003.patch
>   Original Estimate: 1h
>  Remaining Estimate: 1h
> Add to {{yarn-site}} a page on registry configuration parameters

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