MaxActiveChannels (MQLONG)

This attribute is the maximum number of channels that can be active at any time.

The default is the value specified for the MaxChannels attribute.

For z/OS®, the value must be in the range 1 through 9 999.

For all other platforms, the default value is 999 999 999, which means that the number of channels is unlimited. We can set MaxChannels to a different value to limit the maximum number of current channels, if required.

The MaxActiveChannels parameter is a queue manager attribute on z/OS only. On the other platforms, MaxActiveChannels is an attribute in the qm.ini file. See Configuration file stanzas for distributed queuing for information on how you set the MaxActiveChannels attribute on other platforms.

To determine the value of this attribute, use the MQIA_ACTIVE_CHANNELS selector with the MQINQ call.