Processes

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A full Presence installation can consist of several processes.

Services

Firstly there are 2 services.

An RPC (Remote Program Call) Service, which is used to enable Presence installations running on different machines to communicate with each other.

All machines that are running a Presence Server should be running the RPC service as this lets the Heartbeat talk to the Presence Server.

The RPC service runs the prpc.exe.

http://www.international-presence.com/images/docs/processes/rpcservice.png

The Heartbeat Service controls the main Presence apps and should be running on the same machine as which the Presence database is installed. Even in a multi server environment there should be only one Heartbeat Service running. This controls the Database Server the Presence Servers and the httpservers.

The Heartbeat Service Runs the hbserver.exe

http://www.international-presence.com/images/docs/processes/hbservice.png

Starting the Heartbeat Client (on any machine) will let you identify which Programs are running (and on which machines).

http://www.international-presence.com/images/docs/processes/hbclient.png

Processes

You can tell which Presence processes are running through the Task Manager.

If you wish to kill a process be sure to right click and select 'End Process Tree' as this will kill the exe and the associated java.exe process.

http://www.international-presence.com/images/docs/processes/taskmanager.png

channelman.exe - manages channels

dbserv.exe - runs the internal presence database service

hbserver.exe - runs the heartbeat service to monitor and restart the registered services (Database/Presence Servers/Httpserver)

httpstart.exe - The http server

presadmin.exe - The Presence Admin Console

presenceserver.exe - The Presence Server 

prpc.exe - The Remote Program Call program