This probably has an easy answer, but I haven't been able to find one yet. I was wondering if there was a simple solution to exporting the page-level trace results of trace.axd to a log file of some sort.
Thanks
The <trace> element has a writeToDiagnosticsTrace option, which enables you to capture trace events with a trace listener.
We have done this, but with poor results. Because of incomplete trace support in ASP.NET, we couldn't get anything but the trace event messages into the file - no timestamps, no elapsed time - nothing really useful.
Have a look here it might take you some way to what you want:
http://www.15seconds.com/issue/020910.htm
Related
I have an ASP.NET web application developed in C# and .Net v4. When you login in and leave for the page for some 15-20 minutes, I get the "Insufficient stack to continue executing the program safely."
According to my knowledge, there is no way you can try-catch the stackoverflow in .Net. I would imagine that recursive loading of web page and active session checking leading to this error (maybe a bad coding practice). I have also added the screenshot as i am able to figure it out from Stack trace. If anyone help me in this,it will be helpful.
I think I have found the solution. Still the test. Check this Link and this
they really looks promising. I will keep you guys updated when I succeed..
Thank you all for your help.
The problem is this callstack is right at the end of the stack.
A few things to look for:
Is there anywhere in your code where you are using .FindControl(string id)?
If so, is it locating a control and then trying to locate it further?
Are you dynamically creating controls, like for <asp:Placeholder/> controls.
It can be recursive when you reference the parent from within a nested control, which then gets re-referenced by the parent.
Is there a way to see where exactly a given piece of code is executing with regards to the current Page life cycle? Closest thing I can think of is to look at the call stack in the debugger and attempt to determine from there. But I thought there might be some standard way?
You can use Trace. If you want to know from code, use StackTrace.
I'm trying to analyze some running times for various methods in my default.aspx.cs page. I need to use TextWriterTraceListener.
I have it set up so that output is being redirected to the file. However, the data isn't what I want.
As far as I can tell if you simply enable tracing and have the trace appended to the bottom of the webpage you get this nice table with times in between trace calls. It's these times that I care about. An example can be seen here...
http://dotnetperls.com/trace-basics-aspnet
Using TextWriterTraceListener say, for example, I add to the top of Page_Init
System.Diagnostics.Trace.TraceInformation("Begin Page_Init");
and to the bottom...
System.Diagnostics.Trace.TraceInformation("End Page_Init");
here's the output I get...
WebDev.WebServer.EXE Information: 0 : Begin Page_Init
WebDev.WebServer.EXE Information: 0 : End Page_Init
This isn't helpful to me. For one, I don't know what the 0 means. Maybe it's the time, but it's not recognizing anything less than 1 second? I don't know.
I can't find any good resources on this, but I know I have to be missing something, this seems not very useful as is. How do I get times without resorting to some sort of trickery?
Edit: I should note that I found this...
Formatting trace output
However, it seems the consensus is to use log4net or roll your own. Is this really the answer? I'm unsure how this method of tracing could be that useful without any type of timing.
Ok, well writing out Stopwatch values works fine so I guess I'll just do that. It just seems like it should work just the same as when you enable Tracing to the page. I guess not though.
Anyway as far as I can tell, the answer is to use your own method of timing in conjunction with TextWriterTraceListener.
I'm using .NET's built-in Tracing mechanism to trace program execution. The problem is the trace file can grow to several MB very quickly. Is there an efficient way of truncating the file when it grows past a certain point? I thought of putting in a check whenever something gets written (I have a custom class that inherits from TraceListener) but that might degrade performance too much. Maybe a Timer would be a better solution?
Anyone have any ideas?
Implement a custom trace listener:
Let's see how we can solve fairly common task: managing continuously generated trace files. Default trace listener implementation is not really suitable for service applications that are supposed to be always active. If application produces a lot of trace output, then sooner or later this information will use up all disk space.
http://www.codeproject.com/KB/dotnet/customnettracelisteners.aspx?display=Print
With this example, you are able to create log chunck like this:
MyTrace.txt (recent trace information);
MyTrace00.txt (trace history backup);
MyTrace01.txt (trace history backup);
and so on...
Of course, you can throw backup files away.
(Just a hint: try log4net (here) and Enterprise Library Logging Block (here)!)
Perhaps use an Event Log trace listener, since the EventLog can be easily automatically cycled in this way.
I have seen several projects that use the Trace functionality to capture events and stream them out to a log file. I have been unsuccessful in finding a simple to follow guide that will show me how to configure Trace to capture and write said logfile. Does anyone have a link recommendations, or provide some simple steps to follow?
The Trace object writes the statements to any attached TraceListeners. You can build your own, but there are a number already defined in the System.Diagnostics namespace, including:
ConsoleTraceListener (Console)
DefaultTraceListener (Visual Studio / Debugger)
DelimitedListTraceListener (TextWriter, special formatting)
EventLogTraceListener (EventLog - anything that inherits from System.Diagnostics.EventLog)
TextWriterTraceListener (TextWriter - think file)
You can, of course, inherit your own from the TraceListener class that writes to where ever you want. For example, you could log to a database, have it send e-mails or pages in certain situations, or write the statements back to a logging platform like log4net.
The big thing is that you need to create an instance of whatever listeners you want and then add them to the Trace' class Listeners collection. You can add as many as you need and Trace will write to all of them. This way, you can write your logging code once using a well-supported and understood object that's part of the framework, and you can attach anything you need to it.
I stumbled into a MSDN article that really helps. Sorry I didn't find it before posting the question but perhaps others may have the same question and haven't found this link.
Take a look at logging frameworks. We rolled out own, but are now migrating over to log4net available free at http://logging.apache.org/log4net/
Im looking for a way to set the Category of the EventLog, the FormattedEventLogTraceListener writes into (not the category of the message).
But I can't find an appropriate property of this class.
Is it possible to set this?