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https://issues.apache.org/jira/browse/SOLR-16974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17767692#comment-17767692
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Walter Underwood commented on SOLR-16974:
-----------------------------------------

Cool, the environment variable or property approach should work well for us. It 
might be nice to keep that out of the solrconfig.xml and put it in the 
cluster-specific deployment (we're in Kubernetes). 

> Global Circuit Breakers
> -----------------------
>
>                 Key: SOLR-16974
>                 URL: https://issues.apache.org/jira/browse/SOLR-16974
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Circuit Breakers
>            Reporter: Jan Høydahl
>            Assignee: Jan Høydahl
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Currently Circuit Breakers are configured per core in solrconfig.xml. 
> However, cores/collections do not live in isolation, and it could be that a 
> cluster administrator would like to enforce circuit breakers for the entire 
> cluster.
> I'm not clear as to whether we need both cluster level and a core level 
> pluggability. And would core-level breakers add to any cluster-level ones or 
> override them for that core?
> A potential design is to add this as a new plugin in solr.xml, and have them 
> added in a new static context of CircuitBreakerRegistry. Then the isTripped 
> logic would consult both the per-core list and the static/global list of 
> breakers.



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