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https://issues.apache.org/jira/browse/YARN-3294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14363732#comment-14363732
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Jian He commented on YARN-3294:
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thanks Varun, looks good overall.
- will it dump the logs for package
“org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity” or
“org.apache.hadoop.yarn.server.resourcemanager.scheduler”. I think it should be
dumping latter as some scheduler logs sit in common
{code}
Log log = LogFactory.getLog(CapacityScheduler.class.getPackage().getName());
{code}
- the newly added code can be in a separate class, maybe call it
SchedulerLogDumper
- {{private Logger packageLogger;}} does not need to be a global value
- dumping logs is useful for large amount of logs. Do you think it's also
useful to surface the logs on the web page.
- Overall, do you think it's useful to make this as a generic log dumper ? i.e.
parameterize the class name of the log to be dumped.
> Allow dumping of Capacity Scheduler debug logs via web UI for a fixed time
> period
> ---------------------------------------------------------------------------------
>
> Key: YARN-3294
> URL: https://issues.apache.org/jira/browse/YARN-3294
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
> Reporter: Varun Vasudev
> Assignee: Varun Vasudev
> Attachments: Screen Shot 2015-03-12 at 8.51.25 PM.png,
> apache-yarn-3294.0.patch, apache-yarn-3294.1.patch
>
>
> It would be nice to have a button on the web UI that would allow dumping of
> debug logs for just the capacity scheduler for a fixed period of time(1 min,
> 5 min or so) in a separate log file. It would be useful when debugging
> scheduler behavior without affecting the rest of the resourcemanager.
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