RE: Using MDC to handle multirequests

[Georg Jansen]

Manuel,   Will something like this solve it?   public class myFunc {     private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);     private string mUid;       public myFunc(string uniqueId)     {        mUid = uniqueId;     }       public void DoSomthing()     {         using (log4net.LogicalThreadContext.Stacks["UID"].Push(mUid))         {             // do somthing ....             log.Debug("Hello");         }     } }     Best regards Georg http://www.l4ndash.com - Log4Net Dashboard / Log Viewer         -----Original Message----- From: Manuel Reyes [mailto:[EMAIL PROTECTED] Sent: 5. januar 2006 18:29 To: log4net-user@logging.apache.org Subject: Using MDC to handle multirequests   Hello List,   I am currently trying to get my head around using MDC to handle logging in an environment with multiple simultaneous requests.  Another reason for using MDC is that I need to use the "%X{MyParameter}" syntax in my conversion pattern.   The problem I have is that (by Log4Net design) the MDC parameters are overwritten by new parameters. As an example, I have three assemblies "Caller", "Functions" and "Log4Net". Caller has the following basic code and performs no logging:   //--------- Functions f1 = new Functions("uniqueID_1") Functions f2 = new Functions("uniqueID_2") f1.DoRandomThing() f2.DoRandomThing() f1.DoRandomThing() f2.DoRandomThing() //---------   The Functions assembly (which does the logging) references the Log4Net assembly as Logger and contains the following code in its constructor:   //set the UID from the constructor parameter Logger.MDC.Set("UID", uniqueID);   And this code in the DoRandomThing() function   //output info log log.Info("hello from dorandomthing");   Using "%X{UID}" in my conversion pattern I was hoping to get the following log output:   uniqueID_1 uniqueID_2 uniqueID_1 uniqueID_2   But I actually get:   uniqueID_2 uniqueID_2 uniqueID_2 uniqueID_2   I realise that the reason for this is that the MDC class is static, so I am looking for alternative.  Therefore if anybody has any suggestions to assigning a unique ID per instance please post them up.   Thanks in advance Manuel   p.s. one thing I did consider was using the unique ID as the logger name :   //set logger name this.log = Logger.LogManager.GetLogger(typeof(Functions) + uniqueID);   But this is a tad messy and difficult to manage in code should I need to amend it.