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https://issues.apache.org/jira/browse/HADOOP-14902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16184997#comment-16184997
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Hanisha Koneru commented on HADOOP-14902:
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Thanks [~jlowe] for reviewing and committing the patch.
> LoadGenerator#genFile write close timing is incorrectly calculated
> ------------------------------------------------------------------
>
> Key: HADOOP-14902
> URL: https://issues.apache.org/jira/browse/HADOOP-14902
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.4.0
> Reporter: Jason Lowe
> Assignee: Hanisha Koneru
> Fix For: 2.9.0, 2.8.3, 2.7.5, 3.0.0
>
> Attachments: HADOOP-14902.001.patch, HADOOP-14902.002.patch,
> HADOOP-14902.003.patch
>
>
> LoadGenerator#genFile's write close timing code looks like the following:
> {code}
> startTime = Time.now();
> executionTime[WRITE_CLOSE] += (Time.now() - startTime);
> {code}
> That code will generate a zero (or near zero) write close timing since it
> isn't actually closing the file in-between timestamp lookups.
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