<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div>This will modify the MDC, not just the properties in the logging event, which seems to be what was requested.<div><br></div><div>Ralph</div></div><div><br></div><div><br></div><div><div>On Jul 9, 2013, at 7:55 AM, Felipe wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">That should be easy. Juast add import correct classes and then do at proper section (posiblt the init of the thread) MDC.put(key, value).</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jul 9, 2013 at 10:35 AM, KwonNam Son <span dir="ltr"><<a href="mailto:kwon37xi@gmail.com" target="_blank">kwon37xi@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><p>Hello,<br></p><p>When I use Log4j, I can add MDC properties to <a href="http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/spi/LoggingEvent.html" rel="nofollow" target="_blank">LogginEvent</a> by using <a href="http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/rewrite/RewriteAppender.html" rel="nofollow" target="_blank">RewriteAppender</a>.
It's possible because log4j's LoggingEvent is not an interface and it has <a href="http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/spi/LoggingEvent.html#setProperty%28java.lang.String,%20java.lang.String%29" rel="nofollow" target="_blank">setProperty()</a> method.</p><p>Is it possible to add or modify MDC properties dynamically in Logback?</p><p>The reason I need to change MDC properties using appenders is because
of some logs from unaccessible threads.
I want to add hostname, application name and some of server's infomation
to the logs then transfer the logs event to the central log receiver.</p><p><br></p><p>Thanks.<br></p><br></div></div>
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