I was wondering if anyone has any ideas for making UnInvertedField.uninvert()
faster, or other alternatives for generating facets quickly.
The vast majority of the CPU time for our Solr instances is spent generating
UnInvertedFields after each commit. Here's an example of one of our slower
fields:
[2011-10-19 17:46:01,055] INFO125974[pool-1-thread-1] - (SolrCore:440) -
UnInverted multi-valued field
{field=authorCS,memSize=38063628,tindexSize=422652,
time=15610,phase1=15584,nTerms=1558514,bigTerms=0,termInstances=4510674,uses=0}
That is from an index with approximately 8 million documents. After each commit,
it takes on average about 90 seconds to uninvert all the fields that we facet
on.
Any ideas at all would be greatly appreciated.
-Michael
