How does FTP determine it needs to spawn additional server address spaces,
and is there any way to limit that expansion aside from the maximum number
of address spaces applicable to all users? Is there any way to automate the
termination of those address spaces besides job wait time?
 
Our situation is that a flurry of clients connect to the FTP server at about
the same time. FTPD1 spawns upwards of 25 BPXAS address spaces (BPXP024I
BPXAS INITIATOR STARTED ON BEHALF OF JOB FTPD1) within a matter of a few
seconds. Sometimes this number may be much higher. 
 
There seems to be no control over the spawned address spaces. They simply
stick around until they reach the SMF-defined JWT, then they go away.
Occasionally the added address spaces result in IEA602I ADDRESS SPACE CREATE
FAILED.  MAXUSERS WOULD HAVE BEEN EXCEEDED. 
 
None of the FTP configuration options seem to apply, since the waiting
address spaces have no active connections. Any suggestions besides just
increasing max address spaces and hoping I don't reach the new limit?

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