Corticon Server writes log files to the CORTICON_WORK/logs folder by default. The default log configuration records information about the decision services that are loaded, all errors and exceptions that occur, and diagnostics on the performance of Corticon Server. All messages include date and time information as well as severity and type of message logged. For example:

2018-08-20 14:39:52.784 INFO DIAGNOSTIC
Logging functions have to be able to cover the range between getting enough information to understand how to resolve general processing issues, and not getting so much information that the time and space for server operations is compromised. In development environments, more detailed settings can be helpful, while production systems need to capture significant events yet be able to tolerate short-term application of detailed logging.
Logging server activities is an important part of administering Corticon Server deployments. It is also a feature of the built-in Server in Corticon Studios. You can set logs to be as detailed or as brief as your needs for information and performance change.