Oracle Tuxedo/Oracle Exalogic
Users Guide

Overview 1

About this Guide 2

About Oracle Exalogic 2

About Oracle Tuxedo optimizations for Oracle Exalogic 2

Tuxedo Optimizations on Exalogic 3

Direct Cross Node Communication Leveraging RDMA 3

Direct Cross Domain Communication Leveraging RDMA 3

Self-Tuning Lock Mechanism 4

Oracle Tuxedo SDP Support 4

Shared Memory Interprocess Communication 5

Partial One Phase Read-Only Optimization for RAC 5

Shared Applications Staging 5

Tightly Coupled Transactions Spanning Domains 6

XA Transaction Affinity 6

Common XID 6

Single Group Multiple Branches (SGMB) 7

FAN Integration 7

Concurrent Global Transaction Table Lock 7

Oracle Tuxedo Configuration 8

Direct Cross Node Communication Leveraging RDMA 8

UBBCONFIG File 9

Setting Shell Limit for Memory Lock 12

Setting Default Directory Name for File Transfer 13

Direct Cross Domain Communication Leveraging RDMA 13

UBBCONFIG File 13

Self-Tuning Lock Mechanism 15

Oracle Tuxedo SDP Support 15

MP 16

GWTDOMAIN 17

WSL 19

/WS client 20

JSL 20

WTC 21

Shared Memory Interprocess Communication 22

Partial One Phase Read-Only Optimization for RAC 22

Database 22

Choosing APPDIR 23

Tightly Coupled Transactions Spanning Domains 24

XA Transaction Affinity 24

Common XID 24

Single Group Multiple Branches (SGMB) 25

FAN Integration 25

Concurrent Global Transaction Table Lock 25

Best Practices to Optimize Performance 25

Direct Cross Node Communication Leveraging RDMA 26

Scenarios recommended 26

Setting EXALOGIC_MSGQ_CACHE_SIZE 26

Calculating Shared Memory Size for Msgq_daemon 26

Using tmloadcf 26

Adjusting Shared memory size: 29

Self-Tuning Lock Mechanism 30

Shared Memory Interprocess Communication 30

Partial One Phase Read-Only Optimization for RAC 30

XA Transaction Affinity 30

Common XID 30

FAN Integration 30

Single Group Multiple Branches (SGMB) 31

Direct Cross Domain Communication Leveraging RDMA 31

Scenarios Recommended 31

Oracle Tuxedo SDP Support 31

Running Oracle Tuxedo 31

Start/Stop tux_msgq_monitor 31

Assistant Tools 33

Shell Scripts for Start/Stop Oracle Tuxedo 33

Running Oracle Tuxedo on OVM 33

Upgrade 34

Appendix 34

Terminology 34

Oracle Tuxedo installation 35

Configuration for Exalogic 35

Platform Requirements 35

Start Installation 36