I think what I’m tending towards is mostly to fill the information vacuum we presently have. When someone asks “can we run Solr X with Java Y”, our only answer is “I dunno. There are all these tests we regularly run, so look through the Lucene/Solr JIRAs and figure it out for yourself”.
Alexandre: Yes, the Wiki is going away. I consider it temporary because it’s easier to edit than the website and I was hoping others would just edit it. Walter: Problem here is that there won’t be any entries for any ref guide prior to 8.1 (at best), we’re not going to go back and re-publish them all just to add this. So someone asking “can I run Solr 7.7 on JDK 11” would have to look in the 8.1 reference guide which is confusing as well. Maybe going forward, rather than a table about all versions, just a short statement in the ref guide about the versions of Java that version was tested with? Jan: I think rather than recommend, what I’d like to do is give users some feel for what we test regularly. If we “recommend”, there’s an expectation that we'll support it. That said, I like your idea about linking in other sources. We should be vendor-agnostic, OTOH trying to test a zillion different versions is a rats nest. Thanks all. I’ll probably update that page this weekend and move it to the website sometime later. > On Mar 27, 2019, at 1:24 AM, Jan Høydahl <jan....@cominvent.com> wrote: > > Because the Reference Guide is versioned, we only need to discuss what JDK to > grab that works with e.g. Solr/Lucene 8. But I think your wiki page is great > do as an in-depth guide to JDKs and compatibility. Perhaps it can just live > on the wiki as now, and link to it from the RefGuide? > > So on the > https://lucene.apache.org/solr/guide/7_7/solr-system-requirements.html page, > right now we just say "You will need the Java Runtime Environment (JRE) > version 1.8 or higher" and then people to download Oracle Java. > > I think instead of linking to only the Oracle paid version, we could say > something like: > > If you do not have any opinion or requirements on a particular distribution > or version of Java, we recommend that you install the free, Open Source > OpenJDK version 11 which is the latest LTS (long term support) version. You > can download it from many sources such as AdoptOpenJDK (link), Amazon > Corretto (link), Zulu (link) or Oracle (link). We do not endorse any > particular vendor. Note that each vendor may have different policies for bug- > and security fixes, so choose one you are comfortable with. You may also find > that your Operating System already includes a supported version of the JDK. > > There are also commercial paid version of Java. If your organisation has a > policy on what vendor or version or Java to use, make sure to consult that > before deciding. > > For a more in-depth discussion of JDK compatibility, known issues etc for > various versions of Lucene/Solr and Java, please see xxxxx. > > For security reasons, Java should be kept up to date on minor versions. Never > upgrade Java to a higher major version before first checking and testing that > it is compatible with the version of Solr you have. > > -- > Jan Høydahl, search solution architect > Cominvent AS - www.cominvent.com > >> 26. mar. 2019 kl. 16:14 skrev Erick Erickson <erickerick...@gmail.com>: >> >> So I assume everyone thinks I’ve nailed it perfectly with this page? >> https://wiki.apache.org/solr/SolrJavaVersions. ‘cause I haven’t seen much >> feedback. >> >> Look, we give _no_ guidance at this point about whether Lucene/Solr even >> work on Java X. Well, I guess we’re saying Solr 9 works on with Java 11. Or >> at least it will since it’s about to be required. >> >> I don’t particularly care if we say “If you’re upgrading Java, use Java 11” >> for Lucene/Solr 8x or 7x or 6x for that matter. Let’s just get our >> collective act together and give some guidance. >> >> >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org >> For additional commands, e-mail: dev-h...@lucene.apache.org >> > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
