MaxChannels (MQLONG)

This attribute is the maximum number of channels that can be current (including server-connection channels with connected clients).

For z/OS, the value must be in the range 1 through 9 999, with a default value of 200. For all other platforms, the value must be in the range 1 through 65 535, with a default value of 100. A system that is busy serving connections from the network might need a higher number than the default setting. Determine the value that is correct for your environment, ideally by observing the behavior of your system during testing.

For platforms other than z/OS, the value for MaxChannels is set in the qm.ini file of respective queue managers.

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