3.5.1 Matrix Server Administration Guide

Chapter 8: Configure MxFS-Linux 150

Monitors can optionally be configured with scripts that are run at various

points during matrix operation. The script types are as follows:

Recovery script. Runs after a monitor probe failure is detected, in an

attempt to restore the NFS service.

Start script. Runs as the NFS service is becoming active on a server.

Stop script. Runs as the NFS service is becoming inactive on a server.

When a monitor is instantiated, Matrix Server chooses the best node to

make the service active. The Start script is run on this node. The Stop

script is run on all other nodes configured for the monitor to ensure that

the service is not active on those nodes.

Start scripts must be robust enough to run when the service is already

started, without considering this to be an error. Similarly, Stop scripts

must be robust enough to run when the service is already stopped,

without considering this to be an error. In both of these cases, the script

should exit with a zero exit status.