ALTER TRACE on z/OS

Use the MQSC command ALTER TRACE to change the trace events being traced for a particular active queue manager trace. ALTER TRACE stops the specified trace, and restarts it with the altered parameters.


Use MQSC commands

For information on how we use MQSC commands, see Performing local administration tasks using MQSC commands.

Parameters not specified in the ALTER TRACE command result in the existing values for those parameters being left unchanged.

We can issue this command from sources 12CR. For an explanation of the source symbols, see Sources from which we can issue MQSC commands on z/OS .

Synonym: ALT TRACE


ALTER TRACE

ALTER TRACE ( GLOBALSTATACCTG ) TNO ( integer ) CMDSCOPE(' ')CMDSCOPE(qmgr-name)1trace attrsTrace attrsCLASS(*,integerinteger:integer)COMMENT(string)IFCID(*,ifcid)Notes:


Usage notes

Channel initiator traces cannot be altered.


Parameter descriptions for ALTER TRACE

Specify one of the following trace types:

    GLOBAL
    Service data from the entire queue manager (the synonym is G)

    STAT
    Statistical data (the synonym is S)

    ACCTG
    Accounting data (the synonym is A)

And:

    TNO( integer )
    The number of the trace to be altered (1 through 32). We can specify only one trace number.

    CMDSCOPE
    This parameter specifies how the command runs when the queue manager is a member of a queue sharing group. CMDSCOPE cannot be used for commands issued from the first initialization input data set CSQINP1.

      ' '
      The command runs on the queue manager on which it was entered.

      qmgr-name
      The command runs on the queue manager you specify, providing the queue manager is active within the queue sharing group.

      We can specify a queue manager name, other than the queue manager on which the command was entered, only if we are using a queue sharing group environment and if the command server is enabled.


Trace parameters

    CLASS( integer )
    The new trace class. See START TRACE on z/OS for a list of allowed classes. A range of classes can be specified as m:n (for example, CLASS(01:03)).

    For GLOBAL and CHINIT traces, CLASS(*) activates all classes.

    For ACCTG and STAT traces, CLASS(*) activates classes 1 to 3. Channel initiator statistics and channel accounting data are not started with CLASS(*), and must be started with CLASS(4).

    COMMENT( string )
    A comment that is reproduced in the trace output record (except in the resident trace tables).

    string is any character string. If it includes blanks, commas, or special characters, it must be enclosed between single quotation marks (').

    IFCID( ifcid )
    Reserved for IBM Service.

Parent topic: MQSC commands