Hi, I think nobody in the community is focused on field collapsing/grouping, so I suspect there won't be a fix until somebody gets a strong-enough itch or business requires it so much that it decides it pays to invests in the contribution.
Otis -- Solr & ElasticSearch Support -- http://sematext.com/ Performance Monitoring -- http://sematext.com/spm On Wed, Jul 3, 2013 at 5:54 AM, Daniel Bryant <daniel.bry...@tai-dev.co.uk> wrote: > Hi everyone, > > I'm seeing very bad performance when grouping (field collapsing) using > group.facet=true with a large result set. > > - I have an index with 2 million documents, and I query with five facet > fields (each with 30+ groups) > - If I set group.facet=false the query can take 2000ms on first run, but no > more than 250ms on subsequent execution > - If I set group.facet=true it takes on average 18000ms on the first run, > and the same time on all subsequent runs (suggesting to me that a cache is > not being used) > > I've checked the Solr Jira and several others are experiencing the same > issue: > > https://issues.apache.org/jira/browse/SOLR-4763 > > Could anyone offer any advice or suggestions please? This is becoming a > blocking issue for us, and I'm very curious if this will be fixed in the > near future? > > Best wishes, > > Daniel > > -- > *Daniel Bryant | Software Development Consultant | www.tai-dev.co.uk > <http://www.tai-dev.co.uk/>* > daniel.bry...@tai-dev.co.uk <mailto:daniel.bry...@tai-dev.co.uk> | +44 (0) > 7799406399 | Twitter: @taidevcouk <https://twitter.com/taidevcouk>
