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https://issues.apache.org/jira/browse/YARN-7678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jim Brennan updated YARN-7678:
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Attachment: YARN-7678.001.patch
Uploading patch for testing.
Tested locally by running unit tests and enabling the new logger at DEBUG to
ensure only the memory stats are logged.
> Logging of container memory stats is missing in 2.8
> ---------------------------------------------------
>
> Key: YARN-7678
> URL: https://issues.apache.org/jira/browse/YARN-7678
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Affects Versions: 2.8.0, 3.0.0
> Reporter: Jim Brennan
> Assignee: Jim Brennan
> Attachments: YARN-7678.001.patch
>
>
> YARN-3424 changed logging of memory stats from ContainersMonitorImpl to INFO
> to DEBUG.
> We have found these log messages to be useful information in Out-of-Memory
> situations - they provide detail that helps show the memory profile of the
> container over time, which can be helpful in determining root cause.
> Here's an example message from YARN-3424:
> {noformat}
> 2015-03-27 09:32:48,905 INFO
> org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitorImpl:
> Memory usage of ProcessTree 9215 for container-id
> container_1427462602546_0002_01_000008: 189.8 MB of 1 GB physical memory
> used; 2.6 GB of 2.1 GB virtual memory used
> {noformat}
> Propose to change this to use a separate logger for this message, so that we
> can enable debug logging for this without enabling all of the other debug
> logging for ContainersMonitorImpl.
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