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subtransactions there. You can then edit the subtransaction thresholds in
the current procedure.
c. Define the your J2EE trace configuration.
The J2EE monitoring component collects information for the servlet
subtransaction type as follows. At trace level 1, performance data is
collected, but no context information. At trace level 2, performance data is
collected, along with some context information, such as the protocol that
the servlet is using. At trace level 3, performance data and a greater
amount of context information is collected, such as the ServletPath
associated with the subtransaction.
Note: Under normal circumstances, specify a Low configuration. Only
when you want to diagnose a performance problem should you
increase the configuration to Medium or High.
If you specified a Custom configuration, you can adjust the level of
monitoring for type-specific context information. Click one of the following
radio buttons beside each of the J2EE subtransactions in the Trace Detail
Level list:
Off
Specifies that no monitoring is to occur on the
subtransaction.
1
Specifies that a low level of monitoring is to occur
on the subtransaction.
2
Specifies that a medium level of monitoring is to
occur on the subtransaction.
3
Specifies that a high level of monitoring is to occur
on the subtransaction.
d. Define settings for intelligent event generation.
To enable intelligent event generation, perform the following actions in the
Filter Threshold Events by Time/Percentage Failed fields:
i. Select the check box next to Enable Intelligent Event Generation.
While you are not required to enable intelligent event generation, do so
in most cases. Without intelligent event generation, an overwhelming
number of events can be generated. For example, a transaction might
go above and fall below a threshold hundreds of times during a single
monitoring period, and without intelligent event generation, each of
these occurrences generates a separate event with associated
notification. Intelligent event generation merges multiple threshold
violations into a single event, making notification more useful and
Chapter 8. Measuring e-business transaction response times
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