I'll quibble a little with Walter and say that 6.4.2 fixes the perf problem in 6.4.0 and 6.4.1. Which doesn't change his recommendation at all, I'd go with 6.5.1.
Best, Erick On Tue, May 23, 2017 at 5:49 PM, Walter Underwood <wun...@wunderwood.org> wrote: > We are running 6.5.1 in a 16 node cluster, four shards and four replicas. It > is performing brilliantly. > > Our index is 18 million documents, but we have very heavy queries. Students > are searching for homework help, so they paste in the entire problem. We > truncate queries at 40 terms to limit the load, but we have a LOT of long > queries. Our average query time is nicely under 500 milliseconds. > > I strongly recommend that you benchmark your data with your prod queries. > JMeter can replay access logs. > > Versions after 6.4.0 and before 6.5.1 have performance issues because of the > metrics reporting. Use 6.5.1. > > wunder > Walter Underwood > wun...@wunderwood.org > http://observer.wunderwood.org/ (my blog) > > >> On May 23, 2017, at 5:27 PM, Nawab Zada Asad Iqbal <khi...@gmail.com> wrote: >> >> Hi all, >> >> I am planning to upgrade my solr.4.x installation to a recent stable >> version. Should I get the latest 6.5.1 bits or will a little older release >> be better in terms of stability? >> I am curious if there is way to see solr.6.x adoption in large companies. I >> have talked to few people and they are also stuck at older major versions. >> >> Anyone using solr.6.x for multi-terabytes index size: how did you decide >> which version to upgrade to? >> >> >> Regards >> Nawab >
