1.7 Structure: the daemons
The pvmd3 daemon program
-
Runs on each host of virtual machine
- Provides inter-host point of contact
- Creates and terminates tasks
- Maintains the database of running processes
- Provides fault detection
- Synchronizes processes with events and barriers
- Delivers messages
- Mainly a message router, but is also a source and sink of
messages
- More robust than application components