Module 22 - Parallel and Distributed Computing

distributed system

a set of physically separate processors connected by one or more conucation links, like grid computing and cloud computing

event ordering

coordination of requests that requires events to be ordered, with sent messages / recieved messages being used to synchronize the closks

two phase commit protocol

allow scoordination ubnder reasonable operating conditions

distributed transactions

when two or more machiens agree to do something, or not do something, atomically ( does not mean they do the task at the same time )

bully algorithm

processes are numbered; if leader is not heard from, assume they crashed, processes try to become new leader which is decided through lack of message during timeouts and power crashes