Monitoring Ensemble
Viewing the Event Log
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This chapter describes the purpose of the Event Log and explains how to use it. This chapter includes the following sections:
Introduction to the Event Log
The Event Log is a table that records events that have occurred in the production running in a given namespace. The primary purpose of the Event Log is to provide diagnostic information that would be useful in case of a problem while the production is running. It includes the following items:
Viewing the Event Log is a way to “take the pulse” of a production by scanning the informational text messages that it produces while it runs. Event log entries are stored persistently in the Ensemble database and may be purged according to age, as they accumulate.
Introduction to the Event Log Page
To view the Event Log page from the Management Portal, click Ensemble > View > Event Log.
This page is divided into the following three panes where you can perform the indicated functions:
Left Middle Right
Enter search and purge criteria View Event Log entries View event details
To expand and collapse the right and left panes, use the double arrow icons.
The Event Log page has the following commands:
Entering Search and Purge Criteria
Use the left pane to enter search and purge criteria to filter the list of events.
There are three types of search filters:
Or remove entries from the Event Log as described in the following section:
Quick Search
Enter the following values to filter the event list:
As you enter values in these fields the middle pane display updates to reflect your entries.
Event Types
Select or clear the following check boxes to filter events as you determine necessary:
The default list shows events of all types; each event type is selected.
Search Events By
If you do not see the message you want to view in the Event Log page, you can filter the list of entries. To do so, enter values in one or more of the following fields:
Most of these fields support the use of the SQL Like wildcard character (%).
Once you enter new search criteria, click Search in the ribbon bar to refresh the list accordingly.
Purge Event Log
You can purge outdated records from the Ensemble Event Log by entering the number of days to keep the entries and then clicking Purge.
The displayed fields aid you in purging Event Log entries as follows:
When you click Purge, Ensemble immediately starts to purge the Event Log according to the parameters you have entered.
You cannot undo the Purge operation.
The portal provides another page where you can purge Event Log entries along with other management data. See Purging Data in Managing Ensemble.
Viewing Event Log Entries
Each time an event of interest occurs in the life cycle of a production, Ensemble writes an entry to the Event Log stating the details of what happened. You can view this log on the Event Log page of the Management Portal. The list displays the following information for each Event Log entry:
Viewing Event Details
You can select a log entry to view the details of that particular event. Select a row in the middle pane and the expanded right pane displays the following informational fields:
Unique identifier for the message that comprises this Event Log entry.
Indicates the type of entry: Alert, Assert, Error, Info, Trace, or Warning. The type contains the same coloring as the list entry.
Text string associated with the Event Log entry.
Date and time when this entry was logged.
Configuration item (service, process, or operation) that sent the message.
The ID of the session associated with this message. See Sessions,” in the first chapter.
If this event has a session ID, you can click Trace at the top of the right pane to see a visual trace of the session that contained this event.
System job that hosted the event.
Business host class that logged the event.
Method of the business host class that was running when the event was logged.
List of instructions leading up to the error.

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