Sun Microsystems iPlanet Integration Server 3.0, Process System Manual

Page: 199 / 368

Monitoring and Managing Two-Phase Commit
Chapter 6 Managing Process Execution 199
Monitoring and Managing Two-Phase Commit
iIS provides a two-phase commit protocol that allows process client applications to
easily synchronize iIS process state changes with application database updates.
As illustrated in Figure 6-3 , process client applications typically perform iIS
operations that change process state maintained by the engine, while also making
application database updates.
Activity PENDING 10
READY 20
PREPARE_ACTIVE 25
ACTIVE 30
PREPARE_COMPLETE 35
COMPLETED 40
PREPARE_ABORT 45
ABORTED 50
DELETED 60
Timer CREATED 810
OFF 820
ON 830
EXPIRED 840
DELETED 850
Session ACTIVE 210
SUSPENDED 220
TERMINATED 230
NOTE
Two-phase commit does not apply to application proxies. This
section applies only to client applications that interact directly with
the engine.
Object State Value