Use this page to view details about a specific invocation of a J2EE and Database component, such as a servlet, JSP, EJB Method, JDBC connection, or for a specific SQL statement executed by a JDBC connection.
This page is part of the Middle-Tier Page Monitoring features of Enterprise Manager. For more information, see About Monitoring Middle Tier Performance.
Consider these usage tips while reviewing the performance data on this page.
|
Invocation Detail |
Description |
|---|---|
| Application | Identifies the Web application to which the servlet, JSP, EJB method, or JDBC connection belongs. This field does not appear for SQL statements. Instead, Enterprise Manager provides the data source and schema for SQL statements you are analyzing. |
| Invocation Context | For all components, shows you where this specific invocation of the component
fits into the hierarchy or flow of the application .
For example the following example shows that the current invocation of a SQL statement was called by an EJB method, which in turn, was invoked by a servlet:
|
| Data Source | This field appears only for SQL statements; it displays the J2EE data source against which the SQL is executed. |
| Schema | This field appears only for SQL statements; it displays the database schema against which the SQL is executed. |
| Call Rank | For all components, shows you the rank order of this call, relative to all calls made in terms of exclusive processing time. As a result, the most expensive call (in terms of processing time) will always be ranked #1, the second #2, and so on. This property helps you focus your efforts on the invocations that have the most impact on the performance of your application. |
Use the Processing Time Breakdown section of the page as follows, based on the component type you are analyzing:
For all component types, obtain advice about the implementing the selected component type in your Web application.
For JSP, servlets, and EJB methods, determine the time spent in this invocation of compared to calls made to other components.
For JDBC connections, determine the time spent actually running the SQL statement versus the time spent fetching the data obtained by the SQL.
For JDBC connections, review the actual SQL statement that you are analyzing and the time spent establishing connections.
Related Topics
About Web Application Management
About Monitoring Middle Tier Performance
Viewing Middle-Tier Performance Data
Viewing the Entire Middle-Tier Call Stack for a Request
Correlating Middle-Tier Request Performance
Enterprise Manager Information Roadmap
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