Thanks Yonik. If uif has big upfront cost when hits solr the first time, in solr cloud the same faceting request could hit different replicas in the same shard, so that cost will happen at least for the number of replicas? If we are doing frequent auto commits, fieldvaluecache will be invalidated and uif will have to pay the upfront cost again after each commit?
On Wed, Feb 14, 2018 at 11:51 AM, Yonik Seeley <ysee...@gmail.com> wrote: > On Wed, Feb 14, 2018 at 2:28 PM, Wei <weiwan...@gmail.com> wrote: > > Thanks all! It's really great learning. A bit off the topic, after I > > enabled facet.method = uif in solr cloud, the faceting performance is > > actually much worse than the original fc( ~1000 ms with uif vs ~200 ms > > with fc). My cloud has 8 shards with 6 replicas in each shard. I do see > > that fieldValueCache is getting utilized. Any reason uif could be so > > slow? > > I haven't seen that before. Are you sure it's not the first time > faceting on a field? uif has big upfront cost, but is usually faster > once that cost has been paid. > > > -Yonik > > > On Tue, Feb 13, 2018 at 7:41 AM, Yonik Seeley <ysee...@gmail.com> wrote: > > > >> Great, thanks for tracking that down! > >> It's interesting that a mincount of 0 disables uif processing in the > >> first place. IIRC, it's only the hash-based method (as opposed to > >> array-based) that can't return zero counts. > >> > >> -Yonik > >> > >> > >> On Tue, Feb 13, 2018 at 6:17 AM, Alessandro Benedetti > >> <a.benede...@sease.io> wrote: > >> > *Update* : This has been actually already solved by Hoss. > >> > > >> > https://issues.apache.org/jira/browse/SOLR-11711 and this is the Pull > >> > Request : https://github.com/apache/lucene-solr/pull/279/files > >> > > >> > This should go live with 7.3 > >> > > >> > Cheers > >> > > >> > > >> > > >> > ----- > >> > --------------- > >> > Alessandro Benedetti > >> > Search Consultant, R&D Software Engineer, Director > >> > Sease Ltd. - www.sease.io > >> > -- > >> > Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html > >> >
