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Hi,</div>
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we often need to change log level thresholds to investigate a problem in a running system. Right now, we do that by using<br>
<pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'JetBrains Mono',monospace;font-size:11.3pt"><span style="color:#9876aa;font-style:italic"><</span><span style="color:#e8bf6a">configuration </span><span style="color:#bababa">scan</span><span style="color:#6a8759">="true" </span><span style="color:#bababa">scanPeriod</span><span style="color:#6a8759">="30 seconds"</span><span style="color:#9876aa;font-style:italic">></span></pre>
and then editing the logback.xml file by hand (i.e. using a text editor or Sed or Perl). I wonder if there is a better way to accomplish this. I know that we can e.g. use</div>
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<pre><span> </span><span><root</span><span> </span><span>level</span><span>=</span><span>"${rootLevel}"</span><span>/></span><span><br></span></pre>
but what I do not yet understand is:</div>
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<li><span>Can I modify the value if this variable via some Java API from within my application?</span></li><li><span>Do we still need the <code>scan="true"</code> attribute or will the "rootLevel" variable be evaluated every time the logger is used?</span></li><li><span>Is there a measurable performance impact by using variables in that manner?<br>
</span></li></ol>
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