per Russ:
When upgrading from 0.6 to 0.7 on a single box, topaz needs to be
uninstalled before plosone can be upgraded, as /etc/topaz/topaz.xml
causes a conflict. Conveniently, uninstalling topaz creates
/etc/topaz/topaz.xml.rpmsave, and seems to preserve the lucene folder.
In /etc/topaz/topaz.xml, you have left the <server><http-port> element
set to 8008 (the old topaz port), and hardcoded 8080 as the port in the
<fedoragsearch> block. It strikes me that you might want to update
<server><http-port> instead.
Also, is it possible that this could be the release where
/etc/topaz/plosOne.xml has <app-context> left empty by default so that
we don't have to keep removing this deprecated setting on each upgrade?
CAS's global_config.ftl made this change awhile ago...