You can enable diagnostic logging for a query file in Project Explorer view (available in all perspectives) and Minimal Navigator view (available in Apama Workbench) perspective. If you enable this feature, the selected query is generated with extra diagnostic logging when you run the project. A query with diagnostic logging enabled will have extra logging at both INFO and DEBUG level. To view the DEBUG level logging, you must run the correlator with its log level set to DEBUG. For more information, see Correlator arguments.

For information on logging attributes, see Setting EPL log files and log levels dynamically in Deploying and Managing Apama Applications.