I am getting this message..
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Sorry! This site is experiencing technical difficulties.
Try waiting a few minutes and reloading.
(Cannot contact the database server)
You can try searching via Google in the meantime.
Note that their indexes .....
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But not very often. Comes and goes. Where do I look for debugging
information? The Apache logs don't help.
Apache 2.2
MediaWiki 1.23.3
PHP 5.4.4-14+deb7u14 (cgi-fcgi)
MariaDB 5.5.39-MariaDB-1~wheezy
Gordo