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Posted to yarn-issues@hadoop.apache.org by "Miklos Szegedi (JIRA)" <ji...@apache.org> on 2017/09/09 00:06:00 UTC
[jira] [Updated] (YARN-7181) CPUTimeTracker.updateElapsedJiffies
can report negative usage
[ https://issues.apache.org/jira/browse/YARN-7181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Miklos Szegedi updated YARN-7181:
---------------------------------
Attachment: YARN-7181.000.patch
> CPUTimeTracker.updateElapsedJiffies can report negative usage
> -------------------------------------------------------------
>
> Key: YARN-7181
> URL: https://issues.apache.org/jira/browse/YARN-7181
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Miklos Szegedi
> Assignee: Miklos Szegedi
> Attachments: YARN-7181.000.patch
>
>
> It happens, when the process exited and elapsedJiffies becomes 0 again.
> {code}
> public void updateElapsedJiffies(BigInteger elapsedJiffies, long newTime) {
> cumulativeCpuTime = elapsedJiffies.multiply(jiffyLengthInMillis);
> sampleTime = newTime;
> }
> {code}
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