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https://issues.apache.org/jira/browse/HADOOP-8608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13426844#comment-13426844
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Kannan Muthukkaruppan commented on HADOOP-8608:
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+1
> Add Configuration API for parsing time durations
> ------------------------------------------------
>
> Key: HADOOP-8608
> URL: https://issues.apache.org/jira/browse/HADOOP-8608
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Affects Versions: 3.0.0
> Reporter: Todd Lipcon
>
> Hadoop has a lot of configurations which specify durations or intervals of
> time. Unfortunately these different configurations have little consistency in
> units - eg some are in milliseconds, some in seconds, and some in minutes.
> This makes it difficult for users to configure, since they have to always
> refer back to docs to remember the unit for each property.
> The proposed solution is to add an API like {{Configuration.getTimeDuration}}
> which allows the user to specify the units with a prefix. For example,
> "10ms", "10s", "10m", "10h", or even "10d". For backwards-compatibility, if
> the user does not specify a unit, the API can specify the default unit, and
> warn the user that they should specify an explicit unit instead.
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