Compaq Reliable Transaction Router manual

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© 2001 Compaq Computer Corporation

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DECnet, OpenVMS, and PATHWORKS are trademarks of Compaq Information Technologies Group, L.P.

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Confidential computer software. Valid license from Compaq required for possession, use, or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license.

Compaq shall not be liable for technical or editorial errors or omissions contained herein.

The information in this publication is subject to change without notice and is provided ``AS IS'' WITHOUT WARRANTY OF ANY KIND. THE ENTIRE RISK ARISING OUT OF THE USE OF THIS INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR ANY DIRECT, CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE OR OTHER DAMAGES WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS INFORMATION), EVEN IF COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING SHALL APPLY REGARDLESS OF THE NEGLIGENCE OR OTHER FAULT OF EITHER PARTY AND REGARDLESS OF WHETHER SUCH LIABILITY SOUNDS IN CONTRACT, NEGLIGENCE, TORT OR ANY OTHER THEORY OF LEGAL LIABILITY, AND NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY.

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This document was prepared using VAX DOCUMENT, Version 2.1.

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Contents Reliable Transaction Router Getting Started Page Contents Reliability Features Figures Page Document Structure PrefacePurpose of this Document Related Documentation For all usersReading Path Readers Comments= Tutorial System Manager Application ProgrammerIf V2 to Introduction Reliable Transaction RouterRTR Continuous Computing Concepts RTR Continuous Computing ConceptsRTR Terminology RTR TerminologyClient Symbol Server Symbol Roles Symbols Components in the RTR Environment Nontransactional messaging Transaction ID Controller Business Logic Odbc Model Database ServerApplication Presentation PC Browser RTR FrontendBrowser Journal11 RTR Deployed on Three Nodes 12 Standby Server Configuration 13 Transactional Shadowing Configuration RTR Server Types RTR Server TypesStandby server Standby in a cluster 15 Standby Servers 16 Shadow Servers 17 Concurrent Servers Server1 Server2 Server3 Server4Transaction Partition a19 Bank Partitioning Example Standby Server Configurations Anonymous clients Tunnel RTR Networking Capabilities RTR Networking CapabilitiesPage Architectural Concepts Three-Layer ModelThree-Layer Model Three Layer ModelFlexibility and Growth RTR Facilities Bridge the GapBroadcasts RTR Facilities Bridge the GapTransaction Integrity Flexibility and GrowthPartitioned Data Model Partitioned Data ModelObject-Oriented Programming Object-Oriented Programming Partitioned Data ModelObjects Functional and Object-Oriented Programming ComparedMessages Class Relationships Example 2-1 Objects-Defined SamplePolymorphism Object Implementation Benefits XA Support XA SupportReliability Features ServersFailover and Recovery Failover and RecoveryRecovery Scenarios Backend Recovery Router Recovery Frontend Recovery Recovery ScenariosPage RTR Interfaces RTR Management Station RTR Management Station RTR Create Facility DESIGN/ALLROLES=NODEA RTR RTRRECEIVEMESSAGE/TIME=0 RTR RTRSTARTTX/CHAN=C Application Programming Interfaces InterfaceApplication Programming Interfaces RTR Browser InterfaceRTR C Example of an open channel call in an RTR client program RTR Environment RTR System Management EnvironmentRTR System Management Environment RtrcomservRTR System Management Environment Management Station Running Browser SoftwareMonitoring RTR RTR Runtime Environment Optional External Applet Not Running RTR Runtime EnvironmentClient Application Whats Next? Whats Next?Page Glossary Callout server BranchBroadcast ChannelData marshalling Common classesConcurrent server Data objectEvent Fault tolerantEndian Event drivenJournal FrontendInquorate Key rangeMultichannel MessageMessage handler MultithreadedProperties PrimaryProcess Property classesRTR configuration RollbackRouter RTR environmentTransaction ShadowStandby Transaction controllerTransactional shadowing Two-phase commitTransactional message Index Index-1Index-2