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Evaluating the Coordination Overhead of Synchronous Replica Maintenance in a Cluster of Databases
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Title |
Evaluating the Coordination Overhead of Synchronous Replica Maintenance in a Cluster of Databases |
Author(s) |
K. Böhm, T. Grabs, U. Röhm, H.-J. Schek |
Type |
inproceedings |
Booktitle |
In: A. Bode, T. Ludwig, W. Karl, R. Wismüller (Eds.), Euro-Par 2000 Parallel Processing, Proceedings of the 6th International Euro-Par Conference, pages 435-444Munich, Germany |
Organization |
Lecture Notes in Computer Science 1900, http://link.springer.de/link/service/series/0558/tocs/t1900.htm, Springer Verlag, Berlin, 2000 |
Month |
August 29 - September 01,
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Year |
2000 |
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Abstract
We investigate the design of a coordinator for a cluster of databases.
We consider the following alternatives:
TP-Heavy using the TUXEDO TP-monitor,
TP-Lite with the ORACLE8 database system, and a
TP-Less coordinator implemented in Embedded SQL/C++.
In particular, we investigate the scalability of full replication.
We assume that update actions on all replica are executed either
synchronously or asynchronously. It turns out that the
TP-Less approach outperforms commercial TP-middleware for
small cluster sizes already. Another observation is that
asynchronous updates are the preferred option compared to
synchronous updates. The conclusion is that a transaction protocol
at the second layer must be replication-aware.
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