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https://issues.apache.org/jira/browse/YARN-2571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14711631#comment-14711631
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Steve Loughran commented on YARN-2571:
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All the registry code is there (slider uses it), except two bits of the RM side
# create the base user path on app launch (in case the app needs it). This
needs to be done by a process with the right permissions on ZK; it also makes
sure that the user path is created with the perms to allow the RM/admin to
delete it
# purge entries on container/AM failure
There was push-back from the YARN team on #2; not for the RM. I do still think
#2 is needed. Irrespective of that, there is a main() entry point in the 2.7+
code which offers a CLI to create the reg; its just without docs or tests.
Email me direct if you want to start using the code & I'll help you
> RM to support YARN registry
> ----------------------------
>
> Key: YARN-2571
> URL: https://issues.apache.org/jira/browse/YARN-2571
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Affects Versions: 2.6.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Labels: BB2015-05-TBR
> Attachments: YARN-2571-001.patch, YARN-2571-002.patch,
> YARN-2571-003.patch, YARN-2571-005.patch, YARN-2571-007.patch,
> YARN-2571-008.patch, YARN-2571-009.patch, YARN-2571-010.patch
>
>
> The RM needs to (optionally) integrate with the YARN registry:
> # startup: create the /services and /users paths with system ACLs (yarn, hdfs
> principals)
> # app-launch: create the user directory /users/$username with the relevant
> permissions (CRD) for them to create subnodes.
> # attempt, container, app completion: remove service records with the
> matching persistence and ID
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