3.5.1 Matrix Server Administration Guide

Chapter 13: Configure Service Monitors 228

Timeout and Failure Severity

This setting works with the virtual host policy (either

AUTOFAILBACK or

NOFAILBACK) to determine what happens when a probe of a monitored

service fails.

The default policies (

AUTOFAILBACK for the virtual host and

AUTORECOVERY for the monitor) cause ClusterPulse to fail over the

associated virtual host to a backup network interface on another server.

When the service is recovered on the original node, the virtual host fails

back to that node.

You can use the Timeout and Failure Severity attribute to change this

behavior. There are three settings:

NOFAILOVER, AUTORECOVER, and

NOAUTORECOVER.

NOFAILOVER. When the monitored service fails, the virtual host does not

fail over to a backup network interface. This option is useful when the

monitored resource is not critical, but is important enough that you want

to keep a record of its health.

AUTORECOVER. This is the default. The virtual host fails over when a

monitor probe fails. When the service is recovered on the original node,

failback occurs according to the virtual host’s failback policy.