Multiobjective Glowworm Swarm Optimization-Based Dynamic Replication Algorithm for Real-Time Distributed Databases

Algorithm 1

Window mechanism.

	Initialize the servers and subservers
	For each time unit
	If there is request REQ for data d with time deadline
	If does not exist
	Generate and insert REQ into ;
	; ;
	Else If REQ is a read request
	Insert REQ into ; ;
	Else
	Service the requests in ; Insert REQ into ; ; ;
	End if
	End if
	End for
	For each presently existing request window in processor q
	;;
	If
	Service the requests in ; Delete ;
	If (q is a server of data )
	Invalid the copies of in processors that fit to ;
	Empty ;
	End if
	Else if
	Service the requests in ; ; ;
	End if
	End for