Also can we get the capability to choose the method of faceting in the older faceting component? I'm not looking for complete feature parity just the ability to specify the method. As always thanks.
On Fri, Dec 18, 2015 at 8:04 AM, Jamie Johnson <jej2...@gmail.com> wrote: > Can we still specify the cache implementation for the field cache? When > this change occurred to faceting (uninverting reader vs field ) it > prevented us from moving to 5.x but if we can get the 4.x functionality > using that api we could look to port to the latest. > > Jamie > On Dec 17, 2015 9:18 AM, "Yonik Seeley" <ysee...@gmail.com> wrote: > >> On Wed, Dec 16, 2015 at 4:57 AM, Vincenzo D'Amore <v.dam...@gmail.com> >> wrote: >> > Hi all, >> > >> > given that solr 5.4 is finally released, is this what's more stable and >> > efficient version of solrcloud ? >> > >> > I have a website which receives many search requests. It serve normally >> > about 2000 concurrent requests, but sometime there are peak from 4000 to >> > 10000 requests in few seconds. >> > >> > On January I'll have a chance to upgrade my old SolrCloud 4.8.1 cluster >> to >> > a new brand version, but following this thread I read about the problems >> > that can occur upgrading to latest version. >> > >> > I have seen that issue SOLR-7730 "speed-up faceting on doc values >> fields" >> > is fixed in 5.4. >> > >> > I'm using standard faceting without docValues. Should I add docValues in >> > order to benefit of such fix? >> >> You'll have to try it I think... >> DocValues have a lot of advantages (much less heap consumption, and >> much smaller overhead when opening a new searcher), but they can often >> be slower as well. >> >> Comparing 4x to 5x non-docvalues, top-level field caches were removed >> by lucene, and while that benefits certain things like NRT (opening a >> new searcher very often), it will hurt performance for other >> configurations. >> >> The JSON Facet API currently allows you to pick your strategy via the >> "method" param for multi-valued string fields without docvalues: >> "uif" (UninvertedField) gets you the top-level strategy from Solr 4, >> while "dv" (DocValues built on-the-fly) gets you the NRT-friendly >> "per-segment" strategy. >> >> -Yonik >> >
