Beatrix netlets

The Beatrix framework is for applications with the following pattern (Figure ):

Access points

download to client applications and act as proxies to the service-proper. Since they are so simple and are deployed transparently they can usually be ignored. However, access points may be specialised--see Section .

Workers

do the bulk of the work and use system resources. Any one application is likely to have several different kinds of worker, each with a different job.

Managers

manage the deployment of worker netlets. Their sole function is to keep them alive and healthy. Managers work in a group of one leader and several backups. Leadership elections occur transparently when the current leader leaves. There is only one kind of manager.