Hello, I'm hoping to get some quick advice from the Solr gurus out there ...
I’ve inherited a project that uses a Solr 3.6.0 deployment. (Several masters and several slaves – I think there are 6 Solr instances in total.) I’ve been tasked with investigating if upgrading our 3.6.0 deployment will improve performance – there’s a lot of data and things are getting slow, apparently. I’ve read Apache docs that from 3.6.x to 4.x there were improvements in scalability and performance. I see that from 4.x to 5.x that Solr is now a standable server and no longer just a WAR running on Tomcat. QUESTIONS: A. Is it worth upgrading to 4.x or 5.x? Will I see a big improvement in performance? B. Should I got to 4.x or 5.x? Will 4.x be an easier upgrade path since it's just a new WAR file? C. In a nutshell ... what will the upgrade path look like, what kind of steps am I in for, and how can I avoid trouble? Any help is GREATLY appreciated!! Rob
