Subpool
This stanza is created by IBM MQ . Do not change it.
The stanza Subpool, and attribute ShortSubpoolName within that stanza, are written automatically by IBM MQ when you create a queue manager. IBM MQ chooses a value for ShortSubpoolName. Do not alter this value.
The name corresponds to a directory and symbolic link created inside the /var/mqm/sockets directory, which IBM MQ uses for internal communications between its running processes.