Sun Microsystems iPlanet Integration Server 3.0, Руководство по системе управления

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Introduction
204 iPlanet Integration Server • Process System Guide • August 2001
The information displayed in these iIS tools falls into the following categories:
Alarms A number of error conditions in the functioning of an iIS process engine
that might require your intervention are reported as alarms. These conditions
range from a communication problem between engine components to exceptions
generated in the primary engine unit in the course of process execution. Alarms are
displayed in the Process Engine Alarm window (see
“Process Engine Alarms
Window” on page 205 ) and written to an alarms table in the engine’s history log
database (see “WFHAlarmLog” on page 349 ).
Exceptions All error conditions detected by an engine (including alarms) cause
an exception to be raised. When the task that encounters the condition originates in
the client, the error is reported directly to the client (for example, attempting to
start an activity that has already been started). When an error is detected by an
internal engine task (for example, attempting to start an unregistered subprocess),
the engine records a process exception, activity exception, session exception, or
timer exception in the primary engine unit’s log file (see
“Engine Log Files” on
page 210 ). The exception can also be written to the iIS Console trace window (see
“Using the iIS Console Trace Window” on page 215 ).
Messages Each engine component—whether it be an engine unit, database
service, or governor—can generate many types and levels of messages. You can
specify the type and level of messages you want to have logged to a component’s
log file and to an iIS Console trace window (see
“iIS Console Trace Window” on
page 212 ). You can often use this message output to track down the source of
problems.
Performance Indicators You can monitor various aspects of process execution
using the iIS Console. For example, you can monitor sessions and executing
processes as described in
Chapter 6, “Managing Process Execution.” You can also
monitor a number of specific performance indicators using the charting capabilities
described in
“Performance Charts” on page 221 .
This chapter describes how to use the iIS alarms window, log files, tracing window,
and performance window to display the above categories of troubleshooting
information.