So, It seems I can't upgrade Solr beyond 4.7 as long as I'm running SolrJ on Java6 JVM. With any luck I might be able to compile SolrJ that's newer than 4.7 with Java6. I'll check that next. Thanks Shawn. That's very helping!
On Wed, Dec 31, 2014 at 6:54 PM, Shawn Heisey <apa...@elyograg.org> wrote: > On 12/31/2014 6:23 AM, Gili Nachum wrote: > > Can I use SolrJ v4.7 with the latest 4.x Solr.war? > > Should I switch the writer from Javabin, back to XML to ensure > > compatibility? > > > http://wiki.apache.org/solr/Solrj#SolrJ.2FSolr_cross-version_compatibility > > > > I'm using CloudSolrServer. My client is running on Java6 so I can't go > > beyond 4.7. > > If you're running SolrCloud, I would not try it. SolrCloud is evolving > very quickly and so many things have changed that running mismatched > versions is likely to break. I have tried CloudSolrServer from 4.6.0 > against a SolrCloud running 4.2.1, and a simple query will not work > because of changes in the data contained in zookeeper. > > If you're not using CloudSolrServer, it should work very well even with > a wide version discrepancy. > > Switching to XML is not required. The javabin version has only changed > once, in version 3.1.0. It has been stable since that time. > > Thanks, > Shawn > >
