Shikhar Bhushan created SOLR-5637:
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Summary: Per-request cache statistics
Key: SOLR-5637
URL: https://issues.apache.org/jira/browse/SOLR-5637
Project: Solr
Issue Type: New Feature
Reporter: Shikhar Bhushan
Priority: Minor
We have found it very useful to have information on the number of cache hits
and misses for key Solr caches (filterCache, documentCache, etc.) at the
request level.
This is currently implemented in our codebase using custom {{SolrCache}}
implementations.
I am working on moving to maintaining stats in the {{SolrRequestInfo}}
thread-local, and adding hooks in get() methods of SolrCache implementations.
This will be glued up using the {{DebugComponent}} and can be requested using a
"debug.cache" parameter.
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