| W. Rosenberg, D. Kenny and G. Fisher, Understanding DCE, O'Reilly & Associates, Inc, 1992. |
....There are two types of directory replicas: master replicas and read only replicas. Master replicas can accept any directory service operations (such as read and update operations) whereas read only replicas can only accept read operations. All the update operations happen on a master replica [Rosenberg et al. 1992], Bond 1995] There are two methods for maintaining data consistency between a master replica and its readonly replicas: immediate propagation and skulking. With immediate propagation, a change to the master replica causes the change to be immediately applied to all of its read only replicas. ....
W. Rosenberg, D. Kenny and G. Fisher, Understanding DCE, O'Reilly & Associates, Inc, 1992.
....garbage, and in doing so will inevitably remove referenced objects. To reduce the probability of certain objects becoming undetectable garbage, our default mechanism can be extended by the addition of garbage collection driven by the objects themselves. In other distributed systems [Parrington95][Rosenburg92][ANSA91] OMG93] this is typically referred to as orphan detection [Panzieri88] although we term it object driven garbage detection. If lost references are detected (e.g. through the use of periodic keep alive messages) then the objects automatically reduce their reference count for the ....
W. Rosenberg, D. Kenny, and G. Fisher, "Understanding DCE," O'Reilly and Associates, Inc., 1992.
Online articles have much greater impact More about CiteSeer.IST Add search form to your site Submit documents Feedback
CiteSeer.IST - Copyright Penn State and NEC