About event logs

Event logs contain a record of specific system- or workflow-related events for each isolated region. This type of logging is useful for tracking workflow activity.

Each event that is logged is part of an event category, and has an associated event number. See Event logging categories for a description of each event.

Analyzing event logs

Once events are logged to the database, you can access and analyze them in the following ways:

How Process Engine stores event information

Process Configuration Console automatically creates an event log called DefaultEventLog for each isolated region, and the system administrator sets the event logging options in Process Configuration Console. The logging options determine whether Process Engine logs a message when certain events occur within the region. Each event logging option represents an event category; if you enable logging for a category, the occurrence of any event within that category generates a log message.

NOTE  A message can also be logged if a Log system function is executed for a workflow. Although the message is logged in the DefaultEventLog, the event logging options set in Process Configuration Console have no impact on messages generated by the Log system function. For further details, see Log system function in Help for Process Designer.

A log message record can also include system and data field values, if the event log has exposed fields. If the work item contains a field that matches an exposed system or data field, the current value of the work item's field is automatically stored in the event log record at the time the record is logged. See Configure event logging options in Help for Process Configuration Console for further information.

Event log database maintenance

The event log database tables can grow quickly with event logging enabled for the isolated region. The system administrator must periodically extract the logged messages from the event log database and save them in the history file. See vwlog in Help for Process Engine Administration.