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https://issues.apache.org/jira/browse/HADOOP-14276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15959573#comment-15959573
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Zhe Zhang commented on HADOOP-14276:
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Thanks Erik. The analysis makes sense and +1 on the patch. Will wait for 2
hours before committing.
> Add a nanosecond API to Time/Timer/FakeTimer
> --------------------------------------------
>
> Key: HADOOP-14276
> URL: https://issues.apache.org/jira/browse/HADOOP-14276
> Project: Hadoop Common
> Issue Type: Improvement
> Components: util
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Minor
> Attachments: HADOOP-14276.000.patch
>
>
> Right now {{Time}}/{{Timer}} export functionality for retrieving time at a
> millisecond-level precision but not at a nanosecond-level precision, which is
> required for some applications (there's ~70 usages). Most of these seem not
> to need mocking functionality for tests; only one class currently mocks this
> out ({{LightWeightCache}}) but we would like to add another as part of
> HDFS-11615 and want to avoid code duplication. This could be useful for other
> classes in the future as well.
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