When an application performance problem is occurring in a production environment, you can import performance data from Tivoli® Monitoring for Transaction Performance (TMTP), IBM® Tivoli Composite Application Manager for WebSphere® (ITCAM for WebSphere), or IBM Tivoli Composite Application Manager for Response Time Tracking (ITCAM for RTT) and analyze it to identify where the problem is occurring.
Prerequisites:
The following TMTP configuration options (data collection mode and recording settings) will affect what data is available to be retrieved and imported:
Refer to the TMTP documentation topic “Creating policies for J2EE Servlet” (Optional: See this topic from the Tivoli Monitoring for Transaction Performance V5.3 information center on the Internet: Creating policies for J2EE Servlet) for more information about setting these options.
To import data :
If for some reason communication is very slow, you may get a timeout message. You can change the communication timeout setting in the Preferences dialog; from the Window menu, select Preferences > Profiling and Logging > Importing, and change the number of seconds for the import timeout setting.
TMTP import note
When importing, you might receive the following error message:
IWAY0161E Unable to connect to the TMTP management server. Please ensure that the correct host name was entered, the server is running, and there are no firewalls blocking the specified port.
Also, the log (in <workspace>/.metadata/.log) would the following exception:
java.net.SocketException: Operation timed out: connect:could be due to invalid address
The problem may be caused by you or the TMTP management server being behind a firewall. Check that you have set the host name and port correctly in the Import wizard. If these values are correct, then you should contact a system administrator to see if your firewall issue can be resolved. The port that you need to be able to connect to on the host running the TMTP management server was configured at the time the management server was installed. By default, the ports are 9081 for regular communication, and 9446 SSL enabled communication. (These are the ports used when you select the Use default TMTP Web services port option.)
Once you have collected the performance data, you can begin analyzing it and diagnosing the problem. You can view the data using several views including statistics views and sequence diagrams of class and object interactions, to help find the root cause of the performance problem.
ITCAM for WebSphere import notes
The only case where WebSphere authentication will pass and ITCAM for WebSphere authentication will fail is when the user enters a valid user name on the underlying operating system (e.g. root), but that user is not registered in ITCAM for WebSphere. In this case, users should be aware that the server will not raise an error when authentication fails, but they will instead see no traps available from which to import.
TEXTSTRING_LENGTH=255where MS_HOME is the installation home directory of the ITCAM for WebSphere TEMS.