Thread:Project:Support desk/Won't Access Database: Too many open links/reply (8)

> E.g. do you have more than 20 concurrent visitors

That in fact isn't a problem, too. MySQL-Connections will be closed as soon as the execution of the script ends. That means, that you need to have more then 20 visitors, who opens your wiki page at the exact same time and the execution of the php script must be at the same time, too, which is really difficult to do (think, that a normal page view, e.g. of Special:NewMessages takes 887 ms). So i would check, if you really have only Syntaxhighlight as an extension and check, if another application also use the same database user and if so, check, if there is a misconfiguration or a problem in the implementation of database access.