As part of normal cluster health detection, if a cluster resource does not respond to requests in a timely fashion the cluster service may attempt to recover by terminating the Resource Hosting Subsystem (RHS) process associated with the resource so that the resource can be restarted and recovered.

Fixes an issue in which the Rhs.exe process stops unexpectedly in Windows Server 2008 or in Windows Server 2008 R2. This issue occurs when a physical disk resource is moved or fails over.

After you use the Clusweb7.vbs script to configure the following service in a Windows Server 2008 R2 Service Pack 1 (SP1) failover cluster, a memory leak occurs in the Resource Hosting Subsystem (Rhs.exe) process: Therefore, the Rhs.exe process continuously increases its memory usage.

As part of normal cluster health detection, if a cluster resource does not respond to requests in a timely fashion the cluster service may attempt to recover by terminating the Resource Hosting Subsystem (RHS) process associated with the resource so that the resource can be restarted and recovered.

When a cluster node is shutting down, the Resource Host Monitor (rhs.exe) process that hosts IP address resource crashes with the STATUS_ACCESS_VIOLATION error, and the cluster resources do not fail over to another node.

Note In typical situations, the rhs.exe process does not run if the Cluster service is not started. An event that is similar to the following may also be logged in the system event log:

If the IsAlive query times out, the cluster service recycles the Rhs.exe process that hosts the .dll files of the SQL Server resources. The .dll files of the SQL Server resources start a SQL Server shutdown process.

This article describes a hotfix for Windows Server 2008 that enables a dump file to be generated when the Resource Hosting Subsystem (Rhs.exe) process detects a deadlock condition.

You may find events in the System event log that indicates that the Resource Hosting Subsystem (Rhs.exe) process experienced a deadlock. To resolve this issue, install the hotfix on the storage nodes where CSVFS is running.

Fixes an issue in which the cluster resources are not initialized correctly by the newly started Rhs.exe process. This issue occurs on a Windows Server 2008 SP2-based cluster.