(Georgia Institute of Technology, 2000)
Omiecinski, Edward; Navathe, Shamkant B.; Yee, Wai Gen
Modern databases which manage lazy (or deferred updates) to clients which
subscribe to replicated data do so on a client-by-client basis. They ignore
any redundant work done during update processing caused by the commonality
in client subscriptions to replicas. This paper proposes a new way to
process updates which minimizes this redundancy and results in a reduction
of update processing cost at the server in terms of disk space and time
consumed in this phase. Ultimately, updates are available quicker, and
duration during which clients must enduring stale data is reduced. Results
of studies involving, iMobile, a currently available system, are reported,
and are extremely encouraging.