Performance drop after 5 days running web application, how to spot the bottleneck?

Question

I\'ve developed a web application using the following tech stack:

• Java
• Mysql
• Scala
• Play Framework
• DavMail integration (for cale

Answer 1

To eliminate your database you can monitor slow queries (and/or queries that are not using an index) using the slow query log see: http://dev.mysql.com/doc/refman/5.1/en/slow-query-log.html

I would hazard a guess that you have a missing index, and it has only become apparent as your data volumes have increased.