Glossary | Compaq Reliable Transaction Router specification

Glossary

A few additional terms are deﬁned in the Glossary to the Reliable Transaction Router Application Design Guide.

ACID

Transaction properties supported by RTR: atomicity, consistency, isolation, durability.

ACP

The RTR Application Control Process.

API

Application Programming Interface.

applet

A small application designed for running on a browser.

application

User-written software that uses employs RTR.

application classes

The C++ API classes used for implementing client and server applications.

backend

BE, the physical node in an RTR facility where the server application runs.

bank

An establishment for the custody of money, which it pays out on a customer's request.

Glossary–1

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Compaq Reliable Transaction Router manual Glossary

Contents

Reliable Transaction Router Getting Started Page Contents Reliability Features Figures Page Purpose of this Document PrefaceDocument Structure For all users Related Documentation Readers Comments Reading Path If V2 to System Manager Application Programmer= Tutorial Reliable Transaction Router Introduction RTR Continuous Computing Concepts RTR Continuous Computing Concepts RTR Terminology RTR Terminology Client Symbol Server Symbol Roles Symbols Components in the RTR Environment Nontransactional messaging Transaction ID Controller Application Presentation Database ServerBusiness Logic Odbc Model RTR Frontend PC Browser Journal Browser 11 RTR Deployed on Three Nodes 12 Standby Server Conﬁguration 13 Transactional Shadowing Conﬁguration RTR Server Types RTR Server Types Standby server Standby in a cluster 15 Standby Servers 16 Shadow Servers Server1 Server2 Server3 Server4 17 Concurrent Servers Partition a Transaction 19 Bank Partitioning Example Standby Server Conﬁgurations Anonymous clients Tunnel RTR Networking Capabilities RTR Networking CapabilitiesPage Three-Layer Model Architectural Concepts Three Layer Model Three-Layer Model RTR Facilities Bridge the Gap RTR Facilities Bridge the GapBroadcasts Flexibility and Growth Flexibility and Growth Transaction Integrity Object-Oriented Programming Partitioned Data ModelPartitioned Data Model Partitioned Data Model Object-Oriented Programming Functional and Object-Oriented Programming Compared Objects Example 2-1 Objects-Deﬁned Sample Messages Class Relationships Polymorphism Object Implementation Beneﬁts XA Support XA Support Servers Reliability Features Recovery Scenarios Failover and RecoveryFailover and Recovery Recovery Scenarios Backend Recovery Router Recovery Frontend RecoveryPage RTR Interfaces RTR Management Station RTR Management Station RTR Create Facility DESIGN/ALLROLES=NODEA RTR RTRRECEIVEMESSAGE/TIME=0 RTR RTRSTARTTX/CHAN=C Interface Application Programming Interfaces RTR Browser Interface Application Programming Interfaces RTR C Example of an open channel call in an RTR client program RTR System Management Environment RTR Environment Rtrcomserv RTR System Management Environment Management Station Running Browser Software RTR System Management Environment Monitoring RTR RTR Runtime Environment Client Application RTR Runtime EnvironmentOptional External Applet Not Running Whats Next? Whats Next?Page Glossary Channel BranchBroadcast Callout server Data object Common classesConcurrent server Data marshalling Event driven Fault tolerantEndian Event Key range FrontendInquorate Journal Multithreaded MessageMessage handler Multichannel Property classes PrimaryProcess Properties RTR environment RollbackRouter RTR conﬁguration Transaction controller ShadowStandby Transaction Transactional message Two-phase commitTransactional shadowing Index-1 Index Index-2