HP Serviceguard manual Servicecmd, Servicerestart, Servicefailfastenabled, Servicehalttimeout

For legacy packages, this parameter is in the package control script as well as the package configuration file.

service_cmd

The command that runs the application or service for this service_name, for example,

/usr/bin/X11/xclock -display 15.244.58.208:0

An absolute pathname is required; neither the PATH variable nor any other environment variable is passed to the command. The default shell is /usr/bin/sh.

NOTE: Be careful when defining service run commands. Each run command is executed in the following way:

•The cmrunserv command executes the run command.

•Serviceguard monitors the process ID (PID) of the process the run command creates.

•When the command exits, Serviceguard determines that a failure has occurred and takes appropriate action, which may include transferring the package to an adoptive node.

•If a run command is a shell script that runs some other command and then exits, Serviceguard will consider this normal exit as a failure.

Make sure that each run command is the name of an actual service and that its process remains alive until the actual service stops. One way to manage this is to configure a package such that the service is actually a monitoring program that checks the health of the application that constitutes the main function of the package, and exits if it finds the application has failed. The application itself can be started by an external_script (page 252).

This parameter is in the package control script for legacy packages.

service_restart

The number of times Serviceguard will attempt to re-run the service_cmd. Valid values are unlimited, none or any positive integer value. Default is none.

If the value is unlimited, the service will be restarted an infinite number of times. If the value is none, the service will not be restarted.

This parameter is in the package control script for legacy packages.

service_fail_fast_enabled

Specifies whether or not Serviceguard will halt the node (system reset) on which the package is running if the service identified by service_name fails. Valid values are yes and no. Default is no, meaning that failure of this service will not cause the node to halt. yes is not meaningful if service_restart is set to unlimited.

service_halt_timeout

The length of time, in seconds, Serviceguard will wait for the service to halt before forcing termination of the service’s process. The maximum value is 4294.

The value should be large enough to allow any cleanup required by the service to complete.

If no value is specified, a zero timeout will be assumed, meaning that Serviceguard will not wait any time before terminating the process.

generic_resource_name

Defines the logical name used to identify a generic resource in a package. This name corresponds to the generic resource name used by the cmgetresource(1m) and cmsetresource(1m) commands.

Multiple generic_resource_name entries can be specified in a package.

244 Configuring Packages and Their Services