seen on beta http://en.wikipedia.beta.wmflabs.org/
add to a page something like
Failed to parse(PNG conversion failed; check for correct installation of latex and dvipng (or dvips + gs + convert)):
I don't think we've seen these dependencies before, we'll need them in production as well as on beta labs.
Noticed some fatal error while browsing logstash (needs whitelisted labs account): https://logstash.wmflabs.org/#/dashboard/elasticsearch/fatalmonitor
I made an edit on http://en.wikipedia.beta.wmflabs.org/wiki/Math and it is broken indeed :(
Whenever a change is merged for mediawiki/extensions/Math.git, we trigger the Jenkins job beta-recompile-math-texvc. From the console of a job:
It runs: sudo -u mwdeploy /usr/bin/scap-recompile , which compile texvc and put it somewhere under /usr/local/apache/uncommon/
scap-recompile is provided by the debian package wikimedia-task-appserver available at ssh://gerrit.wikimedia.org:29418/operations/debs/wikimedia-task-appserver.git
I guess we need to patch it to compile texvccheck as well.