Mark Miller created SOLR-12405:
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             Summary: Add a quality of service type filter for request load 
management and request throttling.
                 Key: SOLR-12405
                 URL: https://issues.apache.org/jira/browse/SOLR-12405
             Project: Solr
          Issue Type: New Feature
      Security Level: Public (Default Security Level. Issues are Public)
         Environment: Trying to manage resource usage just with thread / 
connection pool limits is a losing strategy ( especially without using 
Continuations and making scalability vs performance tradeoffs) if you cannot 
manage requests.

A QOSFilter type servlet filter with give us some base functionality we want:

Ability to limit number of concurrent requests.

Ability to queue requests without holding a thread per request.

Ability to drop requests over a certain queue size.

Ability to prioritize requests on the queue.
            Reporter: Mark Miller






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