WebSphere Message Brokers
File: an01320_
Writer: Karen Cameron

Reference topic

This build: July 31, 2007 21:33:01

Service trace

Service trace is one of two types of optional trace available in WebSphere Message Broker. Service trace is inactive by default, so you must activate it explicitly using a command when you need more information than that provided by the entries in the Event Log or by user trace.

With service trace, you can activate more comprehensive broker tracing, and start tracing for the workbench, Configuration Manager, and User Name Server. You can also trace the execution of all the commands described in Commands, including the trace commands themselves. Use the mqsichangetrace command to work with service trace; you cannot use the workbench.

Activate service trace only when you receive an error message that instructs you to, or when directed to do so by your IBM Support Center.

When you activate service tracing, you cause additional processing for every activity in the component that you are tracing. Large quantities of data are generated by the components. Expect to see some impact in performance while service trace is active. You can limit this additional processing by being selective about what you trace, and by restricting the time during which trace is active.

The location of the trace logs is as follows:
Windows platform Windows
If you have set the workpath using the -w parameter of the mqsicreatebroker command, the location is workpath\log . If you have not specified the broker workpath, the location is C:\Documents and Settings\All Users\Application Data\IBM\MQSI\common\log.
UNIX platform UNIX
/var/mqsi/common/log
z/OS platform z/OS
/component_filesystem/log

The directory to which the service trace logs are written must be able to hold all the logs for that computer. You might want to place it on a separate file system, if allowed by your system operator.

Related concepts
Trace
Logs
Related tasks
Starting service trace
Checking service trace options
Changing service trace options
Retrieving service trace
Stopping service trace
Formatting trace
Interpreting trace
Clearing old information from trace files
Related reference
User trace
cciUserTrace
cciServiceTrace
Commands
mqsichangetrace command
mqsiformatlog command
mqsireadlog command
mqsireporttrace command
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Copyright IBM Corporation 1999, 2007Copyright IBM Corporation 1999, 2007. All Rights Reserved.
This build: July 31, 2007 21:33:01

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