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http://jira.codehaus.org/browse/MRM-1291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=200153#action_200153
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Marc Lustig commented on MRM-1291:
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This pretty much sounds like a reasonable explanation - unfortunately it may
not be the (only) reason.
I forgot to mention that this "periodic peaks" load-pattern occurs only from
time to time.
I. e. when the pattern happens, the peaks occur periodically. But after
restarting Archiva, the pattern does not occur anymore for a couple of days or
weeks.
I can be sure about this because we have notifiers installed that warn when a
certain HTTP-request on Archiva exceeds a certain threshold value.
We have not seen alarms between 3rd of november and 30th of november.
On the 30th out of a sudden the periodic load raised tremendously.
I doubt the RDBMS being slower could have an impact on the load.
> Archiva has periodic load-peaks
> --------------------------------
>
> Key: MRM-1291
> URL: http://jira.codehaus.org/browse/MRM-1291
> Project: Archiva
> Issue Type: Bug
> Components: system
> Affects Versions: 1.2.2
> Environment: RHEL4, Oracle RDBMS
> Reporter: Marc Lustig
> Attachments: cpu-day.png
>
>
> Archiva causes periodically an increased system-load. (see Munin-stats
> attached)
> During these peaks calling the homepage takes around 6 secs, whereas normally
> it is around 1 sec.
> I could not identify corresponding messages in the logs.
> Could somebody else observe this?
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