Issue writing to single file in Web service in .NET

Question

I have created a webservice in .net 2.0, C#. I need to log some information to a file whenever different methods are called by the web service clients.

The problem

Answer 1

The locking is probably failing because your webservice is being run by more than one worker process. You could protect the access with a named mutex, which is shared across processes, unlike the locks you get by using lock(someobject) {...}:

Mutex lock = new Mutex("mymutex", false);

lock.WaitOne();

// access file

lock.ReleaseMutex();