Relevant Articles: TBD References Log4j MDC https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/MDC.html http://veerasundar.com/blog/2009/10/log4j-mdc-mapped-diagnostic-context-what-and-why/ Log4j2 MDC https://logging.apache.org/log4j/2.x/manual/thread-context.html Logback MDC http://logback.qos.ch/manual/mdc.html