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Optional parameters

 

CommandScope (MQCFST)

Command scope (parameter identifier: MQCACF_COMMAND_SCOPE). This parameter applies to z/OS only.

Specifies how the command is executed when the queue manager is a member of a queue-sharing group. We can specify one of the following:

  • blank (or omit the parameter altogether). The command is executed on the queue manager on which it was entered.

  • a queue manager name. The command is executed on the queue manager you specify, providing it is active within the queue sharing group. If you specify a queue manager name other than the queue manager on which it was entered, be using a queue-sharing group environment, and the command server must be enabled.

The maximum length is MQ_QSG_NAME_LENGTH.

ChannelDisposition (MQCFIN)

Channel disposition (parameter identifier: MQIACH_CHANNEL_DISP). This parameter applies to z/OS only.

Specifies the disposition of the channels to be reset.

The value can be:

MQCHLD_PRIVATE

A receiving channel is private if it was started in response to an inbound transmission directed to the queue manager.

A sending channel is private if its transmission queue has a disposition other than MQQSGD_SHARED.

MQCHLD_SHARED

A receiving channel is shared if it was started in response to an inbound transmission directed to the queue-sharing group.

A sending channel is shared if its transmission queue has a disposition of MQQSGD_SHARED.

The combination of the ChannelDisposition and CommandScope parameters also controls from which queue manager the channel is operated. The possible options are:

  • On the local queue manager where the command is issued.

  • On another specific named queue manager in the group.

The various combinations of ChannelDisposition and CommandScope are summarized in Table 1

ChannelDisposition and CommandScope for RESET CHANNEL
ChannelDisposition CommandScope blank or local-qmgr CommandScope qmgr-name
MQCHLD_PRIVATE Reset private channel on the local queue manager Reset private channel on the named queue manager
MQCHLD_SHARED Reset a shared channel on all active queue managers.

This might automatically generate a command using CommandScope and send it to the appropriate queue manager. If there is no definition for the channel on the queue manager to which the command is sent, or if the definition is unsuitable for the command, the command fails.

The definition of a channel on the queue manager where the command is entered might be used to determine the target queue manager where the command is actually run. Therefore, it is important that channel definitions are consistent. Inconsistent channel definitions might result in unexpected command behavior.

Not permitted

MsgSeqNumber (MQCFIN)

Message sequence number (parameter identifier: MQIACH_MSG_SEQUENCE_NUMBER).

Specifies the new message sequence number.

The value must be in the range 1 through 999 999 999. The default value is one.

 

Parent topic:

Reset Channel


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