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https://issues.apache.org/jira/browse/HADOOP-3479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12606795#action_12606795
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Hemanth Yamijala commented on HADOOP-3479:
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Doug, I fully agree with you on the need to ultimately keep all configuration
management with the Configuration class and not proliferate random formats. I
opened HADOOP-3579 with the intention of doing just that. It would be nice if
you can take a look at what I propose there and comment.
However, I feel having a wrapper around such a Configuration class that
provides a closer API for accessing Queue related configuration is a good idea.
I imagine the ResourceManagerConf class will evolve to that. It would have a
Configuration class as a member variable and provide APIs such as getQueues
which will delegate calls to Configuration. I'm concerned that it would be a
while until we can arrive at a generic format that a majority of us agree with,
and the wrapper helps to abstract the rest of the code from these details.
If you look at the 2nd comment I made on this issue, I mention the format you
proposed as an option. There are disadvantages I've mentioned there (less
intuitive, restrictions on queue names, etc). However, it will have the
advantage of reusing well tested code. The other option is what I've
implemented. It does repeat code, and so is undesirable. However, it is a more
intuitive format IMO. I selected this option because in my mind, I see it as a
temporary arrangement until we fix Configuration to handle hierarchies.
Honestly, if there are no major concerns from admins on the format you
proposed, I would be happy to implement it that way. Does this sound reasonable
? Any other ideas ?
> Implement configuration items useful for Hadoop resource manager (v1)
> ---------------------------------------------------------------------
>
> Key: HADOOP-3479
> URL: https://issues.apache.org/jira/browse/HADOOP-3479
> Project: Hadoop Core
> Issue Type: New Feature
> Reporter: Hemanth Yamijala
> Assignee: Hemanth Yamijala
> Attachments: 3479.1.patch, 3479.patch
>
>
> HADOOP-3421 lists requirements for a new resource manager for Hadoop.
> Implementation for these will require support for new configuration items in
> Hadoop. This JIRA is to define such configuration, and track it's
> implementation.
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