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https://issues.apache.org/jira/browse/HADOOP-6287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12760375#action_12760375
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Chris Douglas commented on HADOOP-6287:
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The return type is not entirely clear. If one specifies 500k and the caller
asks for the spec in megabytes, what does it return? While {{double}} return
values would work, most contexts prefer {{long}}. We should probably just
truncate residue (following java.util.concurrent.TimeUnit, which should also
have get/set in this issue).
bq. For time we could have Configuration#getMilliseconds()
I'd rather follow Java and use Configuration::getTime(String, TimeUnit, long).
I wouldn't object to a convenience getMilliseconds, though.
> Support units for configuration knobs
> -------------------------------------
>
> Key: HADOOP-6287
> URL: https://issues.apache.org/jira/browse/HADOOP-6287
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Reporter: Arun C Murthy
> Assignee: Eli Collins
> Attachments: hadoop-6287-1.patch
>
>
> We should add support for units in our Configuration system so that we can
> specify values to be *1GB* or *1MB* rather than forcing every component which
> consumes such values to be aware of these.
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