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POHow much to log within an application and how much is too much?
 

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  1. POHow much to log within an application and how much is too much?
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    <p>Just wondering how much people log within their applications???</p> <p>I have seen this:</p> <blockquote> <p>"I typically like to use the ERROR log level to log any exceptions that are caught by the application. I will use the INFO log level as a "first level" debugging scheme to show whenever I enter or exit a method. From there I use the DEBUG log level to trace detailed information. The FATAL log level is used for any exceptions that I have failed to catch in my web based applications."</p> </blockquote> <p>Which had this code sample with it:</p> <pre><code>Public Class LogSample Private Shared ReadOnly Log As log4net.ILog = log4net.LogManager.GetLogger(GetType(LogSample)) Public Function AddNumbers(ByVal Number1 As Integer, ByVal Number2 As Integer) As Integer Dim intResults As Integer Log.Info("Starting AddNumbers Method...") Log.Debug("Number1 Specified: " &amp; Number1) Log.Debug("Number2 Specified: " &amp; Number2) intResults = Number1 + Number2 Try intResults = Number1 + Number2 Catch ex As Exception Log.Error("Error Adding Nubmers.", ex) End Try Log.Info("AddNumbers Method Complete.") Return intResults End Function End Class </code></pre> <p>But this just seems to add so much to the method. For instance a class that would normally be maybe 7 lines of code suddenly becomes 12 lines of code. The method also loses some of its clarity and simplicity.</p> <p>But in saying that the benefit of having the logging in place can be good. For instance performance monitoring in a production system, chasing down aberrant bugs in production (not that you would have all this logging turned on all the time.</p> <p>Hence I am wondering what people do? Cheers Anthony </p>
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    1. COhttp://stackoverflow.com/questions/163385/logging-conventions
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      1. USMilan Babuškov
 

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