Add Verbose MBean Stats Option to Solr Cache's
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Key: SOLR-3053
URL: https://issues.apache.org/jira/browse/SOLR-3053
Project: Solr
Issue Type: Improvement
Reporter: Grant Ingersoll
Priority: Minor
Sometimes when debugging, it would be nice if we could get stats about what is
actually in the Solr cache, or at least the size of some of the bigger items.
For instance, on the filterCache, it is nice to know what the size of the
DocSets are. This can be helpful for debugging heap related issues.
The proposed way of doing this is to make a config option that, when set to
true, spits out appropriate information. It's not totally clear what the best
way to implement this is to be generic for the objects in the cache, but I have
some code now that does this when the value in the cache is a DocSet, which is
the primary thing I happen to care about at the moment. I'm open to
suggestions and could also be talked out of this all together.
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