getting duplicate Log4Net entries

Question

I am getting duplicate lines in my log output with the following web.config entries:

<root>
      <priority value="Off"/>
      <appender-ref ref="FileAppender"/>
   </root>
   <logger name="SessionMgr">
      <priority value="ALL" />
      <appender-ref ref="FileAppender" />
    </logger>

If I take the element out I get nothing, as I expect. But, adding the element results in ever line duplicated.

What am I not understanding?

score 8 · Accepted Answer · edited May 23 '17 at 12:10

8

I would try this instead:

   <root>
      <priority value="Off"/>
      <appender-ref ref="FileAppender"/>
   </root>
   <logger name="SessionMgr">
      <priority value="ALL" />
   </logger>

Your root logger already tells you to log to FileAppender. You shouldn't need to add it in your SessionMgr logger. You can also see this article for more details:

Eliminate duplicate logging in log4net

edited May 23 '17 at 12:10

Community

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answered May 23 '11 at 11:33

Cole W

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6 years later for the win! Thank you. – Damian Apr 12 '17 at 14:58
8 years later for the win! Thank you. – Shlomi Bazel Apr 27 '19 at 20:32
10 years later for the win! Thank you. – Washington A. Ramos Aug 19 '21 at 23:30

getting duplicate Log4Net entries

1 Answers1