Book Image

Microsoft Windows Server AppFabric Cookbook

Book Image

Microsoft Windows Server AppFabric Cookbook

Overview of this book

Windows Server AppFabric provides a set of integrated capabilities that extend IIS and the Windows Server platform making it easier to build, scale and manage composite applications today. Windows Server AppFabric delivers the first wave of innovation within an exciting new middleware paradigm which brings performance, scalability and enhanced management capabilities to the platform for applications built on the .NET Framework using Windows Communication Foundation and Windows Workflow Foundation.'Microsoft Windows Server AppFabric Cookbook' shows you how to get the most from WCF and WF services using Windows Server AppFabric leveraging the capabilities for building composite solutions on the .NET platform. Packed with over 60 task-based and immediately reusable recipes, 'Microsoft Windows Server AppFabric Cookbook' starts by showing you how to set up your development environment to start using Windows Server AppFabric quickly. The book then moves on to provide comprehensive coverage of the most important capabilities provided by Windows Server AppFabric, diving right in to hands-on topics such as deploying WCF and WF applications to Windows Server AppFabric and leveraging the distributed caching, scalable hosting, persistence, monitoring and management capabilities that Windows Server AppFabric has to offer, with recipes covering a full spectrum of complexity from simple to intermediate and advanced.
Table of Contents (16 chapters)
Microsoft Windows Server AppFabric Cookbook
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface

Troubleshooting eviction


The Windows Server AppFabric cache uses an eviction policy to regulate the amount of memory used by cached data. We have seen earlier in this chapter that eviction occurs when the cache host is running low on memory and memory consumption goes beyond High Watermark (HWM). In this recipe, we will see how to identify if the cache host is continuously running in eviction state.

How to do it...

We will start with evaluating performance counters to identify the state of the cache host:

  1. 1. Use the following performance counters (using perfmon.exe) available under AppFabric Caching:Host to check the increase in the number of eviction runs:

    • Total Eviction Runs

    • Total Data Size Bytes

    • Total Evicted Objects

    • Total Memory Evicted

    Note

    The eviction counters mentioned previously are cumulative and the increase in these numbers should be noted over a period of time.

  2. 2. Look for Event Id 118 and 115 in Windows Server AppFabric's Operational log using Windows Event Viewer.

  3. 3. Once the...