FIX: The host name affinity expires unexpectedly when you enable the External Cache option in Application Request Routing 3.0

Applies to: Internet Information Services 8.0

This hotfix applies to Microsoft Application Request Routing (ARR) 3.0.

Symptoms


Assume that you install the Microsoft Application Request Routing (ARR) 3.0 module on a server that is running Internet Information Services (IIS) 7.0, 7.5, or 8.0. Then, you enable the External Cache option when you configure the host name affinity of an ARR server farm. In this situation, the host name affinity expires before the configured time-out period. Additionally, the client affinity cookie for the requests is changed.


Resolution


Hotfix information

The following file is available for download from the Microsoft Download Center:
Download Download the package now.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

To apply this hotfix, you must have Microsoft Application Request Routing (ARR) 3.0 installed.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.

For all supported x86-based versions of ARR for IIS 7.0, 7.5 or 8.
File nameFile versionFile sizeDateTimePlatform
Ecache.dll7.1.1901.0123,09621-Oct-201313:42x86
For all supported x64-based versions of ARR for IIS 7.0, 7.5 or 8.
File nameFile versionFile sizeDateTimePlatform
Ecache.dll7.1.1901.0123,09621-Oct-201313:42x86
Ecache.dll7.1.1901.0129,75221-Oct-201313:42x64


Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References


For more information about how to use multiple ARR servers, go to the following Microsoft website: