RTR Networking Capabilities | Compaq Reliable Transaction Router

RTR Networking Capabilities

Figure 1–20 Standby with Partitioning

Router

1-19999

1-19999

20000-39999

Application

ServerA

Application

ServerB

1-19999 Accounts:

1-19999

1-19999

20000-39999

20000-39999

LKG-11214-98WI

RTR Networking Capabilities

Depending on operating system, RTR uses TCP/IP or DECnet as underlying transports for the virtual network (RTR facilities) and can be deployed in both local area and wide area networks. PATHWORKS 32 is required for DECnet conﬁgurations on Windows NT.

Introduction 1–23

Image 33

Compaq Reliable Transaction Router manual RTR Networking Capabilities

Contents

Reliable Transaction Router Getting Started Page Contents Reliability Features Figures Page Preface Purpose of this DocumentDocument Structure For all users Related Documentation Readers Comments Reading Path System Manager Application Programmer If V2 to= 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 Database Server Application PresentationBusiness 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 Broadcasts RTR Facilities Bridge the GapFlexibility and Growth RTR Facilities Bridge the Gap Flexibility and Growth Transaction Integrity Partitioned Data Model Object-Oriented ProgrammingPartitioned 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 Failover and Recovery Recovery ScenariosFailover 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 RTR Runtime Environment Client ApplicationOptional External Applet Not Running Whats Next? Whats Next?Page Glossary Broadcast BranchCallout server Channel Concurrent server Common classesData marshalling Data object Endian Fault tolerantEvent Event driven Inquorate FrontendJournal Key range Message handler MessageMultichannel Multithreaded Process PrimaryProperties Property classes Router RollbackRTR conﬁguration RTR environment Standby ShadowTransaction Transaction controller Two-phase commit Transactional messageTransactional shadowing Index-1 Index Index-2