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https://issues.apache.org/jira/browse/YARN-103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539637#comment-13539637
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Siddharth Seth commented on YARN-103:
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bq. This is the heart of the problem. We don't have a way to say (via the
audience annotations) that an interface is for read-only use only - and not for
users to implement.
Completely agree with this. Do you think it makes sense to add such an
annotation ?
I don't know the details - but I believe JobControl being a class in the 0.20
line was problematic - and it had to be changed to an interface. Curious as to
why that was required.
Marking this as unstable seems to be correct for now - irrespective of whether
it's a class / interface. I'd be happier with an interface + factory. Like
Bikas said, this could be resolved at a later point.
bq. The change of the ResourceRequest comparator to be agnostic of container
count necessitates the check being done in addResourceRequestToAsk. If ask
already contains request FOO for 5 containers then it will not add a request
FOO for 6 containers.
I still don't get why this is needed... maybe I'm missing something. The same
resourceRequest being removed and added back doesn't seem very useful.
Other than this one change, I'm +1 for committing this. Alejandro, Tom - if you
don't have concerns - I'll commit this in the next couple of days.
> Add a yarn AM - RM client module
> --------------------------------
>
> Key: YARN-103
> URL: https://issues.apache.org/jira/browse/YARN-103
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Bikas Saha
> Assignee: Bikas Saha
> Attachments: YARN-103.1.patch, YARN-103.2.patch, YARN-103.3.patch,
> YARN-103.4.patch, YARN-103.4.wrapper.patch, YARN-103.5.patch,
> YARN-103.6.patch, YARN-103.7.patch, YARN-103.8.patch
>
>
> Add a basic client wrapper library to the AM RM protocol in order to prevent
> proliferation of code being duplicated everywhere. Provide helper functions
> to perform reverse mapping of container requests to RM allocation resource
> request table format.
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