ALTER NAMELIST

Use the MQSC command ALTER NAMELIST to alter a list of names. This list is most commonly a list of cluster names or queue names.

UNIX and Linux®	Windows

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

Syntax diagram
Usage notes
Parameter descriptions for ALTER NAMELIST

Synonym: ALT NL

ALTER NAMELIST

Notes:

¹ Valid only on z/OS® when the queue manager is a member of a queue-sharing group.
² Valid only on z/OS.

Usage notes

On UNIX systems, the command is valid only on AIX®, HP-UX, and Solaris.

Parameter descriptions for ALTER NAMELIST

(name)

Name of the list.

The name must not be the same as any other namelist name currently defined on this queue manager (unless REPLACE or ALTER is specified). See Rules for naming IBM® WebSphere® MQ objects.

CMDSCOPE

This parameter applies to z/OS only and specifies how the command is executed when the queue manager is a member of a queue-sharing group.

CMDSCOPE must be blank, or the local queue manager, if QSGDISP is set to GROUP.

' ': The command is executed on the queue manager on which it was entered.
qmgr-name: The command is executed on the queue manager you specify, providing the queue manager is active within the queue-sharing group.
You can specify a queue manager name other than the queue manager on which it was entered, only if you are using a shared queue environment and if the command server is enabled.
*: The command is executed on the local queue manager and is also passed to every active queue manager in the queue-sharing group. The effect of specifying * is the same as entering the command on every queue manager in the queue-sharing group.

DESCR(string)

Plain-text comment. It provides descriptive information about the namelist when an operator issues the DISPLAY NAMELIST command (see DISPLAY NAMELIST).

It must contain only displayable characters. The maximum length is 64 characters. In a DBCS installation, it can contain DBCS characters (subject to a maximum length of 64 bytes).

Note: If characters are used that are not in the coded character set identifier (CCSID) for this queue manager, they might be translated incorrectly if the information is sent to another queue manager.

NAMES(name, ...)

List of names.

The names can be of any type, but must conform to the rules for naming WebSphere MQ objects, with a maximum length of 48 characters.

An empty list is valid: specify NAMES(). The maximum number of names in the list is 256.

NLTYPE

Indicates the type of names in the namelist.

This parameter is valid only on z/OS.

NONE: The names are of no particular type.
QUEUE or Q: A namelist that holds a list of queue names.
CLUSTER: A namelist that is associated with clustering, containing a list of the cluster names.
AUTHINFO: This namelist is associated with SSL and contains a list of authentication information object names.

Namelists used for clustering must have NLTYPE(CLUSTER) or NLTYPE(NONE).

Namelists used for SSL must have NLTYPE(AUTHINFO).

QSGDISP

This parameter applies to z/OS only.

Specifies the disposition of the object to which you are applying the command (that is, where it is defined and how it behaves).

QSGDISP	ALTER
COPY	The object definition resides on the page set of the queue manager that executes the command. The object was defined using a command that had the parameters QSGDISP(COPY). Any object residing in the shared repository, or any object defined using a command that had the parameters QSGDISP(QMGR), is not affected by this command.
GROUP	The object definition resides in the shared repository. The object was defined using a command that had the parameters QSGDISP(GROUP). Any object residing on the page set of the queue manager that executes the command (except a local copy of the object) is not affected by this command. If the command is successful, the following command is generated and sent to all active queue managers in the queue-sharing group to attempt to refresh local copies on page set zero: `DEFINE NAMELIST(name) REPLACE QSGDISP(COPY)` The ALTER for the group object takes effect regardless of whether the generated command with QSGDISP(COPY) fails.
PRIVATE	The object resides on the page set of the queue manager that executes the command, and was defined with QSGDISP(QMGR) or QSGDISP(COPY). Any object residing in the shared repository is unaffected.
QMGR	The object definition resides on the page set of the queue manager that executes the command. The object was defined using a command that had the parameters QSGDISP(QMGR). Any object residing in the shared repository, or any local copy of such an object, is not affected by this command.