INTERNATIONAL ISO/IEC STANDARD 10026-1 Second edition 1998-10-15 Information technology Open Systems Interconnection Distributed Transaction Processing Part 1: OSI TP Model Technologies de I'information - Interconnexion de systemes ouverts (OSI) - Traitement transactionnel reparti - Partie1:Modele OSITP TEC Reference number ISO/IEC 10026-1:1998(E) No r y IHS under itted without license from IHS Not for Resale ISO/IEC 10026-1:1998(E) Contents Page Foreword.. ...iv Introduction ... 1 Scope 2 Normative references .. 3 Definitions... 2 3.1 Terms defined in other International Standards 2 3.2 Terms defined in ISO/IEC 10026 .... 3 4Abbreviations 8 5Conventions. 6 Requirements.. .8 6.1Introduction .8 6.2 User requirements... 6.3 Modelling requirements .. 6.4 OSI TP Service and Protocol requirements .. 7 Concepts of distributed TP 10 7. Transaction..... 10 7.2 Distributed transaction..... 10 7.3 Transaction data and coordination level.... 7.4 Tree relationships.... 11 7.5 Dialogue .. 11 7.6 Dialogue tree .. 12 7.7 Transaction branch 12 7.8 Transaction tree 13 7.9 Channel... 13 7.10 Handshake . .13 7.11 Hinterland . 13 8 Model of the OSI TP Service, 14 i8.1 Nature of the OSI TP Service.. 14 8.2 Rules on dialogue trees..... 8.3Rulesontransactiontrees. 16 8.4 Naming .. 18 8.5 Data transfer. 19 8.6 Coordination of resources .. 19 8.7Recovery 24 8.8 Concurrency control and deadlock 31 31 ?ISO/IEC1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced microfilm, without permission in writing from the publisher. ISO/IEC Copyright Office · Case postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland Copyrightinternational Organization for Standardization ted without license from IHS Not for Resale ISO/IEC 10026-1:1998(E) @ ISO/IEC Annexes A Relationship of the OsI TP Model to the Application Layer Structure Erreur!Si B Tutorial on concurrency and deadlock control in OSI TP 34 C Tutorial on the presumed rollback two-phase commit protocol. .35 D Combinations of Commitment Optimisations E Summary of changes to the second edition 39 Tables Table 1 - Permitted combinations of transaction data and coordination levels. Table 2 - Update of log-damage record. 24 Table 3 - Types of failures .. 25 Table 4 - Restoration of node state after atomic action data unavailability Figures Figure 1 - Transaction hinterland of node A viewed from node B. Figure 2 - Transaction branches, dialogues, and application-associations 18 Figure 3 - Phases of recovery 29 CopyrightInternationalOrganization for Standardization ili Not for Resale