ATB048E

Explanation
 The APPC active conversations threshold specified
by the CONVMAX parameter has been reached.  No new conversations will
be allowed to start in this address space until conversations have
been deallocated or cleaned up.
 For each APPC active conversation
on the system, APPC reserves a certain amount of system storage. 
A runaway transaction program, which creates many conversations but
never deallocates them, could potentially exhaust the fixed amount
of this system storage that APPC has obtained.  To inform the installation
of such a program and to optionally prevent new conversations from
being started up until the problem is solved, APPC allows the installation
to specify a threshold that will cause APPC to take actions when this
problem in encountered.
 You can define the APPC active conversation
threshold limit on the CONVMAX subparameter of the PARM parameter
on the EXEC statement in the APPC member of SYS1.PROCLIB. The CONVMAX
value is a 1- to 5-digit number indicating the maximum number of APPC
active conversations a single address space can have before APPC prevents
new conversations from starting in the address space, if CMACTION
has been set to HALTNEW.
 In the message text: num1
The address space identifier.
num2
The APPC active conversation threshold. 

System action
 The system prohibits new conversations from starting
in the address space identified in the message.

Operator response
 Contact the system programmer.

System programmer response
 Investigate whether the critical
action console message is caused by a programming error in an APPC
transaction program or by some APPC stress workload for this address
space.  A transaction program that allocates conversations but fails
to deallocate them results in many dangling conversations, which could
exhaust APPC storage.  If it is a programming error, cancel the problem transaction program,
fix it and rerun it.
If it is not programming error, and the required number of conversations
exceeds the conversation threshold limit for that transaction program,
you can change the CONVMAX parameter to a reasonably higher value,
and then rerun the transaction program.

  When conversations have been deallocated from the address space,
this condition goes away and the message is ended.

Module
 ATBVSCM

Source
 APPC/MVS

Routing Code
 2

Descriptor Code
 7,11