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https://issues.apache.org/jira/browse/SLING-7223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcel Reutegger updated SLING-7223:
------------------------------------
Attachment: SLING-7223.patch
Attached a patch with proposed changes. Please note, this depends on SLING-7222
and likely requires some manual conflict resolution when applied on top of
those changes.
Whenever the RRD4JReporter is initialized or closed, a sample with unknown
values is inserted. This indicates to rrdtool (and RRD4J) that no overflow
occurred.
> Spikes in RRD after restart
> ---------------------------
>
> Key: SLING-7223
> URL: https://issues.apache.org/jira/browse/SLING-7223
> Project: Sling
> Issue Type: Bug
> Components: Commons
> Affects Versions: Commons Metrics RRD4J 1.0.0
> Reporter: Marcel Reutegger
> Attachments: SLING-7223.patch
>
>
> Running the reporter for some time and then restarting the process shows
> spikes in the collected data. These are caused by counter gauges that are
> reset to zero after a restart. RRD interprets them as 32bit or 64bit integer
> overflows and calculates incorrect values.
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