MVolo's Blog : troubleshooting

Troubleshooting performance counter problems with perfmon and a debugger

IIS 7.0 Server-Side : IIS — Sun, 24 May 2009 04:17:00 GMT

Performance counters are a wonderful tool when it comes to quickly assessing system health and performance of Windows subsystems. In addition to learning much about the operation of Microsoft products, exposing performance counters from your own code...(read more)

Workaround for using IIS 7 url authorization with ASP.NET roles

IIS 7.0 Server-Side : IIS — Tue, 12 May 2009 03:33:00 GMT

When using the IIS 7.0 Integrated pipeline, you gain access to a ton of cool scenarios where IIS and ASP.NET features work together to provide value for your application – regardless of the application content. Most of these features involve using...(read more)

When to restart IIS when making changes to your application

IIS 7.0 Server-Side : IIS — Fri, 12 Sep 2008 06:02:00 GMT

Knowing when to restart IIS to pick up various types of changes to your application has traditionally been a challenge. IIS and ASP.NET are both stateful software systems, which heavily rely on cached state that is loaded once to provide high performance...(read more)

Trace IIS 7.0 Errors Like a Pro with Failed Request Tracing

IIS 7.0 Server-Side : IIS — Fri, 01 Aug 2008 04:25:00 GMT

When dealing with hard to find IIS 7.0 errors, I break out the trusty Failed Request Tracing. My favorite way of doing this is through the command line...( read more ) Read More......(read more)

Starting, stopping and recycling IIS 7.0 Web sites and application pools

mvolo — Tue, 26 Feb 2008 05:12:00 GMT

When working with your IIS 7.0 server, you'll often need to start and stop IIS 7.0 Web sites and start, stop, or recycle IIS 7.0 application pools. Unfortunately, often people don't fully understand what these actions mean and how to properly use them.

For the complete low-down on what it all means and how to carry out these tasks, go on to http://mvolo.com/blogs/serverside/archive/2008/02/25/Starting_2C00_-stopping-and-recycling-IIS-7.0-Web-sites-and-application-pools.aspx.

Thanks,

Mike

Improved PortCheck 2.0 to diagnose IIS service connectivity problems

mvolo — Thu, 24 Jan 2008 04:16:00 GMT

Due to demand for the original PortCheck tool, I decided to release the updated version that I myself have been using that has a few more features to help diagnose connectivity issues.

Download the tool, source code, and find out more about diagnosing IIS connectivity issues at http://mvolo.com/blogs/serverside/archive/2008/01/23/Check-IIS-network-connectivity-with-PortCheck-v2.0.aspx.

Thanks,

Mike

IIS 7.0 health model published

mvolo — Wed, 12 Dec 2007 06:53:00 GMT

The IIS 7.0 health model (Windows speak for known diagnostical and failure conditions experienced by software) has just been pubished on TechNet.

The health model is primarily a list of event log events that are raised by various IIS subsystems, including WAS (technically WPAS now, for Windows Process Activation Service), the IIS worker process, Web Publishing Service (W3SVC), etc.

Thanks,

Mike

Troubleshoot IIS7 errors like a pro

mvolo — Fri, 27 Jul 2007 04:43:00 GMT

Dealing with server errors can be frustrating. Thankfully, IIS7 comes with many improvements to help diagnose errors when they occur, and help resolve them - however, its important that you know how to property use these capabilities.

This post gives you what you need to know to troubleshoot IIS7 errors like a pro.

Read all about it at http://mvolo.com/blogs/serverside/archive/2007/07/26/Troubleshoot-IIS7-errors-like-a-pro.aspx.

Troubleshoot 503 Service Unavailable errors with start-up debugging

mvolo — Sat, 19 May 2007 16:52:00 GMT

In a previous post titled Where did my IIS7 server go? Troubleshooting "service unavailable" errors, I covered the basic steps for dealing with 503 Service Unavailable errors on IIS7.

This post dives deeper into debugging the IIS worker process to get to the bottom of particularly difficult crashes occurring during IIS worker process initialization, where the process goes away before you can debug it with normal means.

Read more at http://mvolo.com/blogs/serverside/archive/2007/05/19/Troubleshooting-IIS7-503-_2200_Service-unavailable_2200_-errors-with-startup-debugging.aspx.

Where did my IIS7 server go? Troubleshooting "service unavailable" errors

mvolo — Thu, 19 Oct 2006 09:00:00 GMT

In the previous post, I covered the “server not found” error that is a common and frustrating problem that may occur for a number of reasons after a configuration change, or when deploying a new server machine. Another common “what the hell just happened” error is the plain 503 “service available” error. In this post we'll look at why this error happens, and how to fix it.

Read about it here - http://mvolo.com/2006/10/19/where-did-my-iis7-server-go-troubleshooting-service-unavailable-errors.aspx.

Where did my IIS7 server go? Troubleshooting guide for those pesky "server not found" and "service unavailable" errors

mvolo — Wed, 18 Oct 2006 01:53:00 GMT

Sometimes, after provisioning a new machine, or making some configuration changes, you may find that your IIS server has gone completely missing without so much as leaving you a note. As you desperately try to bring up your site, your browser connection times out with “server not found” or, slightly better, you get the plain 503 “service unavailable” error.

In these cases, a lot of the instrumentation you typically have at your disposal with application failures is not available to help you fix the problem. But, not to worry - the solution is usually only a few steps away. The step-by-step instructions below should help you figure out what’s wrong in minutes.