Requestor Requestor Replica Replica Source Source profile update (initializing) profile update (initializing) events The profile update tells all members to start sending new events to the requestor state flush state flush The state flush ensures that the source has seen all events from other replicas Request initial image loop Initial image chunks Initial image chunks will not override the values of entries already in the requestor's region Flow control permits GII uses a sliding window to control the amount of data in flight profile update (initialized) profile update (initialized)