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Identifier

uch.csd.msc//1997artavanis

Title

Προσομοίωση Αρχιτεκτονικής Κοινόχρηστων Δίσκων για Συστήματα Επεξεργασίας Δοσοληψιών

Alternative Title

Simulation of the Shared Disks Architecture for Transaction Processing Systems

Creator

Artavanis, Mixalis

Abstract

Coupling multiple computing nodes for transaction processing for the sake of capacity, availability and cost, has received considerable interests. There are several different approaches for coupling. One method of coupling multiple node is the data sharing approach, where all coupled nodes have direct access to shared data stored on disks. Two alternative implementations of this approach are considered in this work. In the first case, only disks are shared (Shared Disk architecture) while in the second case, a shared intermediate level of memory is introduced on top of the Shared Disk architecture. This extension is referred to as the Shared Intermediate Memory architecture. Both were implemented on TPsim which is a simulator for parallel and distributed transaction processing systems. For these architectures, a new efficient routing algorithm was implemented. This algorithm is explained in detail and then we show some experimental results of its use. Finally a series of simulations were made, to observe the impact of workload clustering on the performance of some routing algorithms. For this purpose a clustering tool was used (CLUE), along with the Shared Nothing architecture which is also supported by the TPsim simulator. Three workload clustering algorithms weren considered along with three transaction routing algorithms.

Issue date

1997-11-01

Date available

1998-04-0

Collection

School/Department--School of Sciences and Engineering--Department of Computer Science--Post-graduate theses

Type of Work--Post-graduate theses

Views

450

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