queryResultCache showing all zeros

[Jean-Sebastien Vachon]

Hi,

We just configured a new Solr cloud (5 nodes) running Solr 4.3, ran about 200 
000 queries taken from our production environment and measured the performance 
of the cloud over a collection of 14M documents with the default Solr settings. 
We are now trying to tune the different caches and when I look at each node of 
the cloud, all of them are showing no activity (see below) regarding the 
queryResultCache... all other caches are showing some activity. Any idea what 
could cause this?


  *

org.apache.solr.search.LRUCache
  *

version:
1.0
  *

description:
LRU Cache(maxSize=512, initialSize=512)
  *

src:
$URL: 
https:/?/?svn.apache.org/?repos/?asf/?lucene/?dev/?branches/?lucene_solr_4_3/?solr/?core/?src/?java/?org/?apache/?solr/?search/?LRUCache.java<https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_3/solr/core/src/java/org/apache/solr/search/LRUCache.java>
 $
  *   stats:
     *

lookups:
0
     *

hits:
0
     *

hitratio:
0.00
     *

inserts:
0
     *

evictions:
0
     *

size:
0
     *

warmupTime:
0
     *

cumulative_lookups:
0
     *

cumulative_hits:
0
     *

cumulative_hitratio:
0.00
     *

cumulative_inserts:
0
     *

cumulative_evictions:
0