APPC Subsystem on MPE/XL Node Manager's Guide (30294-90007)

Chapter 4 99
APPC Subsystem Configuration
Configuring the APPC Subsystem
0–480 minutes If Queued Allocate Requests = N
Default: 5 minutes, if Queued Allocate
Requests = Y
0 minutes, if Queued Allocate
Requests = N
Queued Allocate Requests?
Required. This parameter tells the APPC subsystem
whether to queue allocate requests from the remote TP
until the current local TP process calls the
MCGetAllocate intrinsic, or whether to initiate a new
TP process for every allocate request that arrives from
the remote TP.
Y The local TP accepts queued allocate
requests, so only one instance of it may
be running at once. It must be written
to conduct multiple conversations
initiated by the remote TP. (It must
make multiple calls to the
MCGetAllocate intrinsic.) If the local
TP is not running when an allocate
request arrives from the remote TP, the
APPC subsystem runs the local TP. If
the local TP is running and in
conversation when an allocate request
arrives, the allocate request is queued
until the local TP deallocates the
current conversation and calls
MCGetAllocate again. (See Figure
4-17.)
N The local TP does not accept queued
allocate requests, so multiple instances
of it may be running at once. It must be
written to conduct only one remotely
initiated conversation. (It must make
only one call to the MCGetAllocate
intrinsic.) Every time an allocate
request arrives from the remote TP, the
APPC subsystem creates a new
instance of the local TP.
Default: Y