Tablet Accessory User Manual

Configuring an Engine
Chapter 4 Managing Engines 89
Engine name An alpha-numeric name used to identify the engine in a given
environment.
Environment An alpha-numeric name that specifies the iPlanet UDS
environment in which the engine resides.
Database Configuration Properties Properties needed to access the engine
database. These properties include:
• database type
• database name
• user name
• user password
Database Logging Settings These settings specify whether state information is
logged and which history information tables are updated by the engine.
Process Engine Components A minimal engine configuration contains an engine
unit component and a database service component. An engine configured for
failover also contains a Governor component.
Memory Settings These settings specify the object memory heap size allocated to
the various engine components (governor, database services, and engine units).
Included here is also a setting to limit the number of console monitor windows that
can be open at any time.
Stack Size These settings specify the memory size of each thread started for the
process engine components. Default values vary for each platform. Typically, you
do not need to override the default values. For information on setting stack size in
an iPlanet UDS environment, refer to the discussion on FORTE_STACK_SIZE in
the iPlanet UDS System Management Guide.
Process Execution Options These settings specify how an engine manages
process execution. By setting these options appropriately, you can ensure that
memory resources do not become overtaxed during process execution, and thereby
avoid engine performance degradation or possible failure.
Engine Recovery Options These options specify the behavior of the engine
during recovery from an engine failure. They determine how long an engine waits
for client sessions to reconnect, and the action to take if the client sessions do not
reconnect after the timeout period expires.