Site Restart

A site restart is the reinitialization of an entire ChorusOS site (system) following the repeated failure of a group of restartable actors. It is the most severe action that can be invoked automatically by the Hot Restart Controller. A site restart involves the following:

• The microkernel and boot actors are reinitialized from the system image. This step is sometimes called a 'hot reboot' of the system, as opposed to a cold reboot, which involves a board reset and initial system loading steps. See the ChorusOS 5.0 Board Support Package Developer's Guide for details on a cold reboot.

• All restartable actor groups are restarted.

The precise number of group restarts to invoke a site restart is determined by the system's restart policy. The policy implemented by the hot restart feature is based on a set of system tunable parameters. You can extend the basic restart policy within your own applications, by choosing to invoke a group or site restart when particular application-specific exceptions are raised, or when particular events occur.