Hands-On High Performance with Spring 5

Logging best practices

Having described what should be logged and common logging information, this section details the best practices for logging:

• It is very important to assign appropriate log levels to each of the log statements.
• Logging should also be considered in a cluster environment. We can use the same type of log files, with the cluster node name as a suffix to the filename. This will prevent the log entries from being overwritten or wrongly considered when analyzing logs.

• Building log files impacts the application's performance. If an application starts logging every minor piece of information, the application's performance will be slow. We must ensure that the size of the log files and frequency of writing log entries are low. ...