If you have an active Azure Web App and you experience problems or want to do some checks on what might the problem, there is a file called EVENTLOG.XML which contain exceptions and information that may be helpful. The file is located in the /LogFiles directory on your Web App. Figure 1 illustrates how that […]
Read More →Tags: Debugging
Configure Debug Diagnostic 2.0 to create a memory dump when a specific exception is thrown
Debugging a process crash is a challenging activity. Although you know the exception type, the exceptions error message and you know the method that it is being thrown from, you still can’t find out why the exception is being thrown. It is especially complicated when the error is happening randomly and you cannot reproduce it. […]
Read More →Using HTTP ETW tracing to troubleshoot HTTP issues
I wrote this article here in regards to an issue that I was having after installing an SSL certificate on an IIS web server. One of the tools I used was the HTTP ETW trace, also known as LOGMAN. As you notice from reading the other previous article, I was receiving a 404 HTTP Status […]
Read More →Using Procdump and Failed Request Tracing to capture a memory dump
One of my favorite tools for troubleshooting Internet Information Service issues is ProcDump. It is a single, small, yet powerful EXE that is very useful for capturing W3WP.exe process memory dumps. One of my other favorites is Failed Request Tracing which I have written about here and here for a Windows Azure Web Site. Failed […]
Read More →Enable logging on your Windows Azure Web App – App Service from Visual Studio
With the release of Windows Azure SDK 2.0, you can enable the logging from within Visual Studio. I wrote another article which discussed how to enable Failed Request Tracing while logged into the Microsoft Azure Management console. You can review that article here. After installing the SDK, open Visual Studio and example the Server Explorer, […]
Read More →Troubleshooting badly behaving IIS application pools
There are many reasons why an application pools’ worker process (W3WP.exe) could be behaving badly. The best approach is to capture some memory dumps during the problem situation and then analyze them. The problem with that is the root cause is not always obvious, even after many hours of analysis and investigation. An alternative to […]
Read More →Enabling Failed Request Logging on a Windows Azure Web Site
I am moving all my articles to one location. This article is a bit old, and is here for historical purpose. If you end up here please read this updated article here (Enable Failed Request Tracing for an Azure App Service Web App) Using Failed Request Tracing is a very useful tool for troubleshooting performance […]
Read More →Create a memory dump when the W3WP process terminates using Procdump
There are times when you need to capture a W3WP memory dump when the process stops responding. However, the process might stop responding in the middle of the night or early morning which is not the best time to manually take a memory dump. You can configure Procdump to execute and capture a memory dump […]
Read More →Using Process Monitor to solve any problem, including DebugDiag
I attended TechReady15 and took part in a session from Mark Russinovich, the creator of Process Monitor and many if not all of the System Internals tools. He mentioned that there is no problem which Process Monitor cannot be used to help resolve. I put that to the test when I received the error message, […]
Read More →Troubleshooting IIS Performance Issues or Application Errors using LogParser
If you haven’t already visited the troubleshooters section of the IIS.NET website, take a look at it here. You will find a number of good troubleshooting guides. I contributed an article that discusses using LogParser to troubleshoot performance or application issues/errors. I hope you find it useful.
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