Essential log attributes to log - duration of a request in access.log

It is absolutely imperative that the access.log file from your Web server record the total response time as measured by the Web server. This is available in all flavours of Web servers. It provides definitive response time numbers as they leave the Web server that can be used as a second data point to the application monitor's servlet response time. The log entry also allows sysadmins a chance to put their log monitors on it to alert on long response times.