Camel uses convention over configuration so sometimes its useful to turn on debug logging to see how Camel is operating and to try and diagnose issues.
Camel 2.7 or better uses sfl4j which allows you to configure logging via, among others:
Camel 2.6 or lower uses commons-logging which allows you to configure logging via, among others:
Refer to the commons-logging user guide for a more complete overview of how to use and configure commons-logging.
To enable debug logging we recommend you use log4j for logging then make sure your log4j.properties file enables DEBUG level logging for the org.apache.camel. package.
For example here is a log4j.properties file with debug Camel logging enabled