Compaq AAR-88LB-TE Running Version 2 Applications, Comparison of OpenVMS API and Portable API

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Running Version 2 Applications

In this chapter the term OpenVMS API refers to the Reliable Transaction Router for OpenVMS Version 2. The term Portable API refers to the API used in Reliable Transaction Router for OpenVMS Version 3.

With RTR Version 3, the Portable API provides:

•Portability over a wide range of language and machine environments

•Simpliﬁed handling of concurrency, independent of the type of operating system

•Support for communication between machines with different hardware representations of common data types

•Interoperability with existing applications that use the OpenVMS API

•Improved performance for commonly used transaction types

•Support for use within a threaded environment

•Support for foreign protocols such as XA and Microsoft DTC, with nested or subtransaction transaction capability

6.1Comparison of OpenVMS API and Portable API

Table 6–1 lists the OpenVMS API and comparable Portable API calls.

Running Version 2 Applications 6–1

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Contents Compaq Computer Corporation Houston, Texas Reliable Transaction Router Migration GuideJune Operating SystemFirst Printing, December Revised, June Preface ContentsInstallation Network IssuesPerformance Tips 8 Problem Diagnosis and ReportingSystem Management 6 Running Version 2 ApplicationsIndex Tables Page Audience PrefaceOrganization of This Guide Readers Comments Related DocumentsConventions monospace Page Introduction 1.1 Why Migrate?1.2 Goals and Nongoals Introduction 1.1 Why Migrate?1.3 Reading Guidelines 2.1 Cleaning Up the Old Version 2 Environment Installation2.5 Process Quotas Installation 2.2 Preserving the Old Environment2.2 Preserving the Old Environment 2.3 Can Both RTR Version 2 and Version 3 Coexist On the Same Node?Installation 2.5 Process Quotas 2.6 Journal IssuesTable 2-1 OpenVMS Limits 2.6.2 Journal Compatibility Installation 2.6 Journal Issues 2.6.1 Removing the Old Journal2.7 Rights and Privileges 2.8 Memory and Disk RequirementsTable 2-2 OpenVMS Disk Requirements 2.9 Rollback to RTR Version2.8 Memory and Disk Requirements DEASSIGN/SYSTEM/EXEC RTRSHRPage 3.3 The Shared Library LIBRTR.EXE 3.2 Command Server ProcessArchitectural Changes 3.1 RTR Daemon Process3.7 Counters 3.4 The ACP Process3.5 Interprocess Communication 3.6 Shared Memory ParametersArchitectural Changes 3.8 Quorum Issues 3.8 Quorum Issues3.9 Server-Process Partition States Page 4.1 DECnet Support Network Issues4.2 TCP/IP Support 4.3 Specifying a Preferred Transport Network Issues 4.3 Specifying a Preferred Transport4.3.1 Supported Products 5.3 Creating Facilities System Management5.1 OpenVMS Quotas 5.2 Startup5.5.1 RTR Version 2 Screens 5.4 Interoperability5.5 Monitoring System Management 5.4 InteroperabilityTable 5-3 New RTR Version 3 Monitor Pictures 5.5 Monitoring5.5.3 User Parsing of Monitor Output 5.5.4 User Customized Monitors5.11 Interpreting Output from SHOW Commands 5.6 Remote Command Support5.9 Using RTR Version 2 Command Procedures 5.10 Command Line Interface Support for RTR Version 2 APITable 5-5 Obsolete OpenVMS RTR Utility Commands 5.12 Comparing RTR Version 2 and Version 3 Utility CommandsSystem Management 5.11 Interpreting Output from SHOW Commands Table 5-4 Cont. Changed SHOW COMMANDSTable 5-6 Cont. New OpenVMS RTR Utility Commands 5.12 Comparing RTR Version 2 and Version 3 Utility Commands6.1 Comparison of OpenVMS API and Portable API Running Version 2 ApplicationsTable 6-1 OpenVMS API and Portable API Comparison 6.2 Recompiling and RelinkingRunning Version 2 Applications 6.1 Comparison of OpenVMS API and Portable API6.2.1 RTR Version 2 Applications Running on RTR Version Running Version 2 Applications 6.2 Recompiling and Relinking6.5 Support for $GETTXI 6.3 Running Applications Installed with Privileges6.3 Running Applications Installed with Privileges 6.4 Application Level InteroperabilityRunning Version 2 Applications 6.6 Threaded Applications 6.8 Current Issues6.6 Threaded Applications 6.7 DDTM SupportPage 7.3 RTR Startup Qualiﬁers Performance Tips7.1 Process Quotas 7.2 Journal SizingPerformance Tips 7.6 Simultaneous Multiprocessing 7.6 Simultaneous Multiprocessing8.3 Dump File Problem Diagnosis and Reporting8.2 RTRERROR.LOG File 8.1 RTR Operator Log4. Enter the OpenVMS ANALYZE/SYSTEM SET PROCESS RTRACP command 8.6 Contents of the RTR Journal FileProblem Diagnosis and Reporting 8.4 Producing and Directing a Trace 1. Enter the SHOW PROCESS RTRACP/CONTINUOUS OpenVMS commandIndex