<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Hello everybody,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">i like to ask, if there is reason why </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><a href="https://github.com/qos-ch/logback/blob/master/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java#L407" rel="nofollow" target="_blank" class="enhancr_card_1304690721">logback/LoggingEvent.java at master · qos-ch/logback</a> <br></div><div><br></div><div id="ydp9ecc6125enhancr_card_1304690721" class="ydp9ecc6125yahoo-link-enhancr-card ydp9ecc6125ymail-preserve-class ydp9ecc6125ymail-preserve-style" style="max-width:400px;font-family:YahooSans, "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif" data-url="https://github.com/qos-ch/logback/blob/master/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java#L407" data-type="YENHANCER" data-size="MEDIUM" contenteditable="false"><a href="https://github.com/qos-ch/logback/blob/master/logback-classic/src/main/java/ch/qos/logback/classic/spi/LoggingEvent.java#L407" style="text-decoration:none !important;color:#000 !important" class="ydp9ecc6125yahoo-enhancr-cardlink" rel="nofollow" target="_blank"><table border="0" class="ydp9ecc6125card-wrapper ydp9ecc6125yahoo-ignore-table" cellpadding="0" cellspacing="0" style="max-width:400px"><tbody><tr><td width="400"><table border="0" class="ydp9ecc6125card ydp9ecc6125yahoo-ignore-table" cellpadding="0" cellspacing="0" width="100%" style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224, 228, 233);border-radius:2px"><tbody><tr><td class="ydp9ecc6125card-primary-image-cell" background="https://s.yimg.com/lo/api/res/1.2/NuptTyV8XoyTl7J8xFPi4g--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://opengraph.githubassets.com/e03362752d06fd959d1f6fe87ea11452e5f3050959037e11e50927de1b566257/qos-ch/logback.cf.jpg" bgcolor="#000000" valign="top" height="175" style="background-color: rgb(0, 0, 0); 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line-height: 19px; margin: 0px 0px 6px; font-family: YahooSans, "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif; color: rgb(29, 34, 40); max-width: 314px;">logback/LoggingEvent.java at master · qos-ch/logback</h2><p class="ydp9ecc6125card-description" style="font-size: 12px; line-height: 16px; margin: 0px; color: rgb(151, 158, 168);">The reliable, generic, fast and flexible logging framework for Java. - logback/LoggingEvent.java at master · qos...</p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a></div><div><br></div><div dir="ltr" data-setdir="false">is evaluated during call, <span><span style="color: rgb(36, 41, 47); font-family: -apple-system, "system-ui", "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"; font-size: 14px;"> and not "materialised" during log event creation</span></span></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I seen situations when before <span>LoggingEvent was processed, MDC context was reset, </span></div><div dir="ltr" data-setdir="false">and after that MDC data was not present in related log message</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">thank you very much for answer</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Best regards</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Peter Kotula</div><div><br></div></div></body></html>