FIX: ASP.NET Queues Too Many Requests

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SYMPTOMS

Microsoft Internet Information Services (IIS) 6.0 does not return an HTTP 503 error when the number of requests is greater than the RequestQueueLimit value that you define in the configuration settings for ASP.NET.

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CAUSE

This is a design change from ASP.NET 1.0 to ASP.NET 1.1. In ASP.NET 1.0, IIS returns an HTTP 503 error and rejects each request that is over the limit of the RequestQueueLimit value:

<processModel requestQueueLimit="5000"/>

Note This is a performance issue that occurs when you stress test IIS 6.0. Also, this fix maintains compatibility with ASP.NET 1.0. You can view the following PerfMon objects to determine when the number of requests is greater than the limit:

ASP.NET\Requests Current
ASP.NET\Requests Queued

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RESOLUTION

How to Obtain the Hotfix

This issue is fixed in the June 2003 ASP.NET Hotfix Package 1.1. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

821156 (http://support.microsoft.com/kb/821156/ ) INFO: ASP.NET 1.1 June 2003 Hotfix Rollup Package

You cannot obtain this fix individually. You must install the rollup.

Note When you request this hotfix, you receive the rollup. The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

	           Date         Time   Version       Size       File name
		   -----------------------------------------------------------------------
		   07-Jun-2003  00:44  1.1.4322.910    253,952  Aspnet_isapi.dll
		   07-Jun-2003  00:44  1.1.4322.910     20,480  Aspnet_regiis.exe
		   07-Jun-2003  00:44  1.1.4322.910     32,768  Aspnet_wp.exe
		   15-May-2003  23:49                   33,522  Installpersistsqlstate.sql
		   15-May-2003  23:49                   34,150  Installsqlstate.sql
		   07-Jun-2003  12:52  1.1.4322.910  1,216,512  System.dll
		   07-Jun-2003  00:39                   14,472  Webuivalidation.js
		   07-Jun-2003  12:52  1.1.4322.910  1,249,280  System.Web.dll

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