title: How to monitor MySQL query errors, timeouts and logon attempts?
body: <p>While setting up a third party closed source CMS (Sitefinity) the setup doesn't create all tables and procedures necessary to run it. The software lacks a logging system itself and it made me wonder: could I trace and monitor failing SQL statements from MySQL?</p>
  
  <p>This serves more than only the purpose of solving my issue with Sitefinity. More often I wonder what's send to the MySQL server, not wanting to dive into the software products or setup a debugging environment etc. </p>
  
  <p>I tried JetProfiler (only performance) and looked through a <a href="http://solutions.mysql.com/solutions/?type=18" rel="noreferrer">few others</a>, but although they monitor a lot, they don't monitor query failures, timeouts or logon attempts. Does anyone know a profiler, tracer, monitoring tool, commercial or free, that can show me this information?</p>