AppFabric 1.1 Caching: All cache hosts in the cluster must be up and running

  • Article

This topic is intended to address a specific issue identified by a Best Practices Analyzer scan. You should apply the information in this topic only to computers that have had the AppFabric 1.1 Caching Best Practices Analyzer run against them and are experiencing the issue addressed by this topic. For more information about best practices and scans, see Best Practices Analyzer.

Operating System

Windows Server 2008 R2

Product/Feature

Microsoft AppFabric 1.1 for Windows Server Caching

Severity

Warning

Category

Operations

Issue

One or more cache hosts are down.

Impact

Cache operations might be negatively impacted if all hosts are not running.

Resolution

Ensure that all cache hosts are online and connected to the cluster, and that the Caching Service is running on all hosts.

  1. Open a Windows PowerShell command prompt.

  2. Use the Get-CacheHost command to view the status of the hosts in the cache cluster. For example, note in the following output that Service Status of the SERVER2 cache host is DOWN.

    HostName : CachePort Service Name            Service Status Version Info
-------------------- ------------            -------------- ------------
SERVER1:22233      AppFabricCachingService UP             3 [1,3][1,1]
SERVER2:22233      AppFabricCachingService DOWN           3 [1,3][1,1]
SERVER3:22233      AppFabricCachingService UP             3 [1,3][1,1]

  3. For any cache hosts that are down, check to see if they are running and accessible from other machines in the cache cluster. If so, attempt to start the stopped cache hosts with the Start-CacheHost command, or, if the cache cluster is down, use the Start-CacheCluster command.

Additional references

Server Unavailability

  2012-09-12