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Posted to yarn-issues@hadoop.apache.org by "Akira Ajisaka (JIRA)" <ji...@apache.org> on 2018/11/22 05:37:00 UTC
[jira] [Deleted] (YARN-4803) ContainerMetrics drops records
[ https://issues.apache.org/jira/browse/YARN-4803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Akira Ajisaka deleted YARN-4803:
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> ContainerMetrics drops records
> ------------------------------
>
> Key: YARN-4803
> URL: https://issues.apache.org/jira/browse/YARN-4803
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.9.0
> Reporter: Daniel Templeton
> Assignee: Daniel Templeton
> Priority: Major
>
> The metrics2 system was implemented to deal with persistent sources. {{ContainerMetrics}} is an ephemeral source, and so it causes problems. Specifically, the {{ContainerMetrics}} only reports metrics once after the container has been stopped. This behavior is a problem because the metrics2 system can ask sources for reports that will be quietly dropped by the sinks that care. (It's a metrics2 feature, not a bug.) If that final report is silently dropped, it's lost, because the {{ContainerMetrics}} won't report anything else ever anymore.
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