Neil, Still is not clear whether it multi or singe valued fields that defines usage or FieldCache or UnInvertedField, and per-segment reader vs top-level reader. The only concern I have about your approach is the waste of cpu for calculate facets for huge *:* docsets. I guess you can try to find narrow way to trigger field cache initialization. Perhaps http://wiki.apache.org/solr/TermsComponent can be useful for it.
Regards On Sat, Mar 3, 2012 at 11:58 PM, Neil Hooey <nho...@gmail.com> wrote: > I need to have those queries trigger the generation of facet counts, which > can take up to 5 minutes for all of them combined. > > If the facet counts aren't warmed, then the first query to ask for facet > counts on a particular field will take several minutes to return results. > > On Sat, Mar 3, 2012 at 5:40 AM, Mikhail Khludnev < > mkhlud...@griddynamics.com> > wrote: > > Neil, > > > > Would you mind if I ask what particularly do you want to warm by these > > queries? > > > > Regards > > > > On Sat, Mar 3, 2012 at 12:37 AM, Neil Hooey <nho...@gmail.com> wrote: > > > >> I'm trying to get Solr to run warming queries in parallel with > >> listener events, but it always does them in sequence, pegging one CPU > >> while calculating facet counts. > >> > >> Someone at Lucid Imagination suggested using multiple <listenever > >> event="firstSearcher"> tags, each with a single facet query in them, > >> but those are still done in parallel. > >> > >> Is it possible to run warming queries in parallel, and if so, how? > >> > >> I'm aware that you could run an external script that forks, but I'd > >> like to use Solr's native support for this if it exists. > >> > >> Examples that don't work: > >> > >> <!-- runs in sequence: multiple facet queries in a single <listener> --> > >> <query> > >> <listener event="firstSearcher" class="solr.QuerySenderListener"> > >> <arr name="queries"> > >> <lst><str name="q">*:*</str><str > name="facet.field">field1</str></lst> > >> <lst><str name="q">*:*</str><str > name="facet.field">field2</str></lst> > >> <lst><str name="q">*:*</str><str > name="facet.field">field3</str></lst> > >> <lst><str name="q">*:*</str><str > name="facet.field">field4</str></lst> > >> </arr> > >> </listener> > >> </query> > >> > >> <!-- runs in sequence: queries distributed across separate <listener> > tags > >> --> > >> <query> > >> <listener event="firstSearcher" class="solr.QuerySenderListener"> > >> <arr name="queries"> > >> <lst><str name="q">*:*</str><str > name="facet.field">field1</str></lst> > >> </arr> > >> </listener> > >> <listener event="firstSearcher" class="solr.QuerySenderListener"> > >> <arr name="queries"> > >> <lst><str name="q">*:*</str><str > name="facet.field">field2</str></lst> > >> </arr> > >> </listener> > >> <listener event="firstSearcher" class="solr.QuerySenderListener"> > >> <arr name="queries"> > >> <lst><str name="q">*:*</str><str > name="facet.field">field3</str></lst> > >> </arr> > >> </listener> > >> <listener event="firstSearcher" class="solr.QuerySenderListener"> > >> <arr name="queries"> > >> <lst><str name="q">*:*</str><str > name="facet.field">field4</str></lst> > >> </arr> > >> </listener> > >> </query> > >> > > > > > > > > -- > > Sincerely yours > > Mikhail Khludnev > > Lucid Certified > > Apache Lucene/Solr Developer > > Grid Dynamics > > > > <http://www.griddynamics.com> > > <mkhlud...@griddynamics.com> > -- Sincerely yours Mikhail Khludnev Lucid Certified Apache Lucene/Solr Developer Grid Dynamics <http://www.griddynamics.com> <mkhlud...@griddynamics.com>
