title: How to dynamically change log level in SLF4j OR Log4J
body: <p>Recently I encountered a situation where Application <code>Loglevel</code> changes dynamically. Application Admin can set it to <code>INFO/DEBUG/ WARN</code> from front end. Based on the log level choosen be him application logging must be changed.</p>
  <p>I am sure loggers support this scenario. How can I achieve this?</p>