Enabling Debug Logging for Managed Servers in Oracle Service Bus 12c

In 12c, changing the logging settings for Service Bus is done via the EM console. However, this only works for the Admin server. If you’re using a clustered domain and need to enable debug on one or more managed servers, you must update the log configuration by hand.  This is true for Service Bus whether running On-Prem or as part of a SOACS instance.

The logging settings for a given managed server are located in the following file <domain_home>/config/fmwconfig/servers/<server_name>/logging.xml.  To enable debugging for a specific area, you must add the appropriate logger to the file with a level of “TRACE:32”.  For instance, to enable transport debug, add the following element as a child of the <loggers> element, at the bottom of the logging.xml file:



     <logger name=’oracle.osb.debug.transports’ level=’TRACE:32’/>


Log output is written to the managed server’s diagnostic log file under the <domain_home>/servers/<server_name>/logs directory.  For instance, a managed server named osb_server1 would write to a file named osb_server1-diagnostic.log in the logs directory.

The logging configuration is re-read periodically, so there is no need to restart the server for the changes to take effect, which is a benefit for production environments.  However, be aware that debug logging will have a performance impact due to the amount and type of data being logged.

For a list of available debug loggers in Service Bus, consult the following documentation:

Oracle Service Bus 12c Debug Loggers

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