Jan Høydahl created SOLR-16974:
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             Summary: Configure Circuit Breakers globally
                 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


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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