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Constraint block

 

The constraint block places optional constraints on the kinds of data collected by the trace. The allowed constraints depend on the type of trace started, as shown in the following table:

Constraints allowed for each trace type

Type	CLASS	IFCID	RMID	USERID
GLOBAL	Allowed	Allowed	Allowed	Allowed
STAT	Allowed	No	No	No
ACCTG	Allowed	No	No	No
CHINIT	Allowed	Allowed	No	No

CLASS

Introduces a list of classes of data gathered. The classes allowed, and their meaning, depend on the type of trace started:

(*)

Starts a trace for all classes of data.

(integer)

Any number in the class column of the table that follows. We can use more than one of the classes that are allowed for the type of trace started. A range of classes can be specified as m:n (for example, CLASS(01:03)). If you do not specify a class, the default is to start class 1.

Descriptions of trace events and classes

Class	IFCID	Description
		Global trace
01	0000	Reserved for IBM service
02	0018	User parameter error detected in a control block
03	0016	User parameter error detected on entry to MQI
	0017	User parameter error detected on exit from MQI
	0018	User parameter error detected in a control block
04	Various	Reserved for IBM service
		Statistics trace
01	0001	Subsystem statistics
	0002	Queue manager statistics
		Accounting trace
01	0003	The CPU time spent processing MQI calls and a count of MQPUT and MQGET calls
03	0025	Enhanced accounting and statistical data
		CHINIT trace
01	0199	Reserved for IBM service
04	Various	Reserved for IBM service

IFCID

Reserved for IBM service.

RMID

Introduces a list of specific resource managers for which trace information is gathered. We cannot use this option for STAT, ACCTG, or CHINIT traces.

(*)

Starts a trace for all resource managers.

This is the default.

(integer)

The identifying number of any resource manager in Table 3. We can use up to 8 of the allowed resource manager identifiers; do not use the same one twice.

Resource Manager identifiers that are allowed

RMID	Resource manager
1	Initialization procedures
2	Agent services management
3	Recovery management
4	Recovery log management
6	Storage management
7	Subsystem support for allied memories
8	Subsystem support for subsystem interface (SSI) functions
12	System parameter management
16	Instrumentation commands, trace, and dump services
23	General command processing
24	Message generator
26	Instrumentation accounting and statistics
148	Connection manager
197	CF manager
199	Functional recovery
200	Security management
201	Data management
211	Lock management
212	Message management
213	Command server
215	Buffer management
242	WebSphere MQ-IMS bridge
245	DB2 manager

TDATA

Reserved for IBM service.

USERID

Introduces a list of specific user IDs for which trace information is gathered. You cannot use this option for STAT, ACCTG, or CHINIT traces.

(*)

Starts a trace for all user IDs. This is the default.

(userid)

Names a user ID. We can use up to 8 user IDs; a separate trace is started for each.

 

Parent topic:

Parameter descriptions

sc13280_

 

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