May 19, 2008
So we already talked about what to gather when you are experiencing high memory . But what if you are actually getting a System.OutOfMemoryException? Here is how you capture a dump at the time you are running out of memory. The following steps...
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Tags: ASP.NET TipDebuggingASP.NETIIS.NETHigh MemoryExceptions
May 14, 2008
There are two ways to gather data in a Deadlock situation. If you are using Windows 2003 or later (IIS 6.0 or later), then follow the steps in the KB 828222 If you are using an older version of IIS, then follow the steps below: Before the issue...
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Tags: ASP.NET TipDebuggingASP.NETIIS.NETHang
May 06, 2008
Defining an IIS Crash A Crash in IIS occurs when an IIS process (INETINFO.EXE, DLLHOST.EXE, W3WP.EXE) terminates unexpectedly. A Crash typically happens when there is an Unhandled Exception caused by an Access Violation, Stack Overflow, etc. In these...
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Tags: ASP.NET TipDebuggingASP.NETIISCrash
May 05, 2008
Identifying a Memory leak A Memory Leak in an IIS process (INETINFO.EXE, DLLHOST.EXE, W3WP.EXE) occurs when Memory Usage in Task Manager continues to consume more than 50% of the physical RAM until running out of system memory or until the process stops...
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Tags: ASP.NET TipDebuggingASP.NETIISHigh Memory
Apr 28, 2008
So in a previous post, we talked about Understanding when to use a Finalizer in your .NET class so now lets take a look at what the Finalize queue looks like and how to tell if things are bad. The command we use is !finalizequeue in sos: 0:010> !finalizequeue...
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Tags: ASP.NET TipDebuggingASP.NETIIS.NET
Apr 25, 2008
We recently had a case where the customer was having performance problems. They were seeing requests take a few minutes to return and didn’t know what was happening. So they took some dumps while the problem was happening. So we ran this dump through...
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Tags: ASP.NET TipDebuggingASP.NETIISHang
Apr 22, 2008
Problem Description So this is a customer situation we found were the customer was getting an System.OutOfMemoryException. We were able to reproduce this with a console application that just ran: For Iterator = 0 To 99999999999 Regex.IsMatch(CONNECTION_STRING...
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Tags: ASP.NET TipDebuggingASP.NETIISHigh Memory
Apr 14, 2008
Here is yet another command you may not be aware of. But it can we really helpful when you are troubleshooting many types of issues with IIS/ASP.NET. !clientconns is part of a debugger extension that ships with DebugDiag . In the directory...
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Tags: ASP.NET TipDebuggingASP.NETIIS