_which_ solrCache objects? filterCache? result cache? documentcache? result cache is about "average size of a query" + "window size * sizeof int) for each entry. filter cache is about "average size of a filter query" + maxdoc/8 document cacha is about "average size of the stored fields in bytes" * size.
HTH, Erick On Mon, Apr 14, 2014 at 5:17 PM, Gregg Donovan <gregg...@gmail.com> wrote: > We'd like to graph the approximate RAM size of our SolrCache instances. Our > first attempt at doing this was to use the Lucene RamUsageEstimator [1]. > > Unfortunately, this appears to give a bogus result. Every instance of > FastLRUCache was judged to have the same exact size, down to the byte. I > assume this is due to an issue with how the variably-sized backing maps > were calculated, but I'm not sure. > > Any ideas for how to get an accurate RAM estimation for SolrCache objects? > > --Gregg > > [1] https://gist.github.com/greggdonovan/10682810
