| Techreport |
| Type of Publication |
| Efficient State Initialization Mechanisms for Shared
Whiteboards and Distributed Applications |
| Title |
|
|
| Authors |
| Technical Report TR-00-013, Department for Mathematics and Computer Science,
University of Mannheim, June 2000 |
| Published in |
| In this paper we propose a novel late join
algorithm for distributed applications with a fully replicated
architecture (e.g. shared whiteboards). The term join algorithm
is used to denote a mechanism that allows a late-coming
participant to join an ongoing session. Generally, this requires
that participants in the session inform the latecomer about the
current state of the shared application, so that he or she is
able to actively participate in the session once the late join
has been completed. While many existing distributed applications
implement some sort of late join, a thorough discussion of late
join algorithms has not yet been conducted. We therefore identify
the key issues of late join algorithms and propose a set of
requirements which a good late join approach should satisfy.
Based on these requirements, we evaluate existing late join
algorithms and explain why we opted instead to develop a new,
advanced late join algorithm for our own shared whiteboard. This
late join approach is discussed in detail, and we show how it
enhances existing approaches significantly while still being
general enough to be used for arbitrary distributed
applications. |
| Abstract |
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