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From "Alexey Serba (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-3053) Add Verbose MBean Stats Option to Solr Cache's
Date Tue, 07 Feb 2012 22:53:03 GMT


Alexey Serba commented on SOLR-3053:

There's FastLRUCache showItems parameter to display last accessed items ( see also SOLR-2789
> Add Verbose MBean Stats Option to Solr Cache's
> ----------------------------------------------
>                 Key: SOLR-3053
>                 URL:
>             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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