Logback logger logging twice

Question

I would like to use slf4j+logback for two purposes in my application - log and audit.

For logging, I log the normal way:

static final Logger logger = L         


        

Answer 1

Solutions:

1. Add additivity="false" to the "AUDIT_LOGGER", as described in one of the answers above, to not inherit the appenders from the root logger.

2. Remove the appender element from the "AUDIT_LOGGER". This will cause the "AUDIT_LOGGER" to inherit the appenders from the root logger.

3. Be careful including other config files, which can also cause duplicate logging. In my case, I had to remove base.xml include block, which defines a root logger and appenders.

NOTE: I would suggest defining the appenders outside of your loggers an referring to them by the appender-ref element. This way you can have multiple loggers referring to the same appender. See logback docs.

  
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