The above steps can only identify if the Data Collector
is basically functioning. It may be possible that the Data Collector
is behind in collecting data due to connectivity, traffic load, or
other issues.
About this task
You can use event charts to monitor Data Collector performance.
An event chart is generated by querying the database for the number
of instances of an event for the specified time period. For example,
you can generate an event chart for an event that occurs every session
or on every page to provide indicate when the Data Collector is gathering
data. Since event charts typically break down the reporting period
into hourly periods, you can check to see when the most recent data
is displayed in the event chart. Please complete the following steps.
Procedure
-
In the Portal menu, select .
- Change Focus to today's date, if it is not currently selected.
- From the Event Selector, select an event that occurs every
page or every session.
- For example, if your web application uses a Session Start event or always begins with a Login
page, a related event can be selected for this test.
Note: Depending on traffic load and
processing resources, creating an event that is triggered on every page may be problematic.
If your system can handle the load, one example of an event triggered on every page is an
event that is fired when the application message HTTP - 200
is in the
response. Since this message is part of every response, it is a valid event to test.
- After you have selected the event, click Select.
- If the report does not automatically refresh, click Refresh
- In the displayed report, compare the time for the most
recently displayed bar in the bar graph to the local system time.
- Any discrepancies between the hour in the bar chart and the current
hour in your time zone indicates that there may be a general data
flow problem in the main processing pipeline.
- If you have already completed the preceding steps on this page and have not found the source of
the issue, you may infer that the problem is with the Data Collector. Further
analysis is required. See Reviewing Data Collection Events and Logs.
- You can compare the event count value in this report to the count among active events. See
"Monitoring Active Events" in the Unica Discover
Manuals.
- If there are no differences, you might check the Count of events
in the most recent hour in the displayed table to verify that the
count is within reason.
- To retrieve a list of sessions where the selected event was triggered
within an hour, click the time indicator for the hour period.