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https://issues.apache.org/jira/browse/SOLR-17277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17848190#comment-17848190
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Jason Gerlowski commented on SOLR-17277:
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Starting to work on this. Does anyone have a preference on what we call the
feature - it's likely to be visible in system properties etc, so I'd like to
pick a name folks are happy with!
"Dry Run" mode? "Warn only" mode? Something else?
> Circuit Breakers should support a "Warn-only" mode
> --------------------------------------------------
>
> Key: SOLR-17277
> URL: https://issues.apache.org/jira/browse/SOLR-17277
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Circuit Breakers
> Affects Versions: main (10.0)
> Reporter: Jason Gerlowski
> Priority: Minor
> Labels: newdev
>
> The threshold values used when configuring Circuit Breakers are incredibly
> important. Identifying when load begins to get "dangerous" is tricky: too
> stringent and users will get 429s unnecessarily, too lax and the circuit
> breakers won't be effective at preventing crashes.
> Conservative users may wish to evaluate potential thresholds without actually
> blocking traffic. Could Circuit Breakers offer some sort of "Dry Run"
> capability - where a request that would otherwise have been blocked merely
> logs a message? This would allow users to get feedback on their thresholds
> before they actually start sending CB-based 429s to users.
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