The serviceservices in distributed systemsystems communicate with each other to perform a useful activity.
thereThere are two architecture style fromstyles in the role of service: client-server and peer-to-peer.
client-serverClient-server:
mostMost important and commonmost commonly used in distributed systems.
From client-server, clientthe server interactinteracts with individual server processes in potentially
separate host computers to access shared resources that are found in it and managemanaged from it.
serverServer may be client to another server, like: a web server.
peer-to-peerPeer-to-peer:
All processprocesses that are found in a task/activity have the same role, thatwhich is divided toacross a group of peers and
each processesprocess that is found in peer can interact through it. and thisThis model can not difference
differentiate between client and server processprocesses or between computers has run at this time for that all
. All participating processes can run the same program and offer the same interfaces to each other.
from itsIt has the advantage of resources that foundavailable to run the services, which can increase by increasing
the number of users.