Hi Andi.
Thanks for giving your time to respond. I have enabled search, as well as check. I also dispatched the latest Popularity Feedback report (anon_id 0d7cab9251549e76de34453368a161d1). If you haven't access to that data for some reason, here are the index highlights:
index_count 152
index_size 87117170
index_biggest 35700404
index_smallest 5
index_avg 573139.27631579
I am running Nginx on Ubuntu 14.04 (soon upgrading to 16.06 as part of a datacenter change). PHP version 5.5.9. Active plugins:
acl, addnewpage, authplain, blockquote, bureaucracy, changes, comment, config, confmanager, croissant, csstimeline, data, definitionlist, description, extension, folded, gallery, hidepages, htmlmetatags, icons, imagebox, include, info, message, notfound, nslist, pagenav, pagequery, pagetitle, popularity, purplenumbers, qna, redirect, revealjs, safefnrecode, searchtext, simplenavi, sqlite, starred, styling, text, toctweak, translation, upgrade, usermanager, userpagecreate, vshare, wrap
While testing Sphinx search engine I experienced that larger searches took very long to display in DokuWiki, although the search itself was carried out quickly on the server. Unfortunately I didn't have the time to troubleshoot at the time, otherwise it could perhaps have worked out nicely with Sphinx. This is the one I tried last:
https://github.com/abiliojr/bettersearch
One reason for looking into separate search engines is the ability to do advanced things like stemming (mainly for diacritical characters). There are many other areas of search I want to improve as well, but that will have to come later when I can afford someone to help me. For now I am very grateful for any insights you can share with me, or if the inbuilt search can be improved in any way before I launch.
Thanks.