Running Batch Reports in CA Mainframe Application Tuner (CA MAT) 10.0 is resulting in a S878 Abend.

Document ID : KB000006045
Last Modified Date : 14/02/2018
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Issue:

Running Batch Reports in CA Mainframe Application Tuner (CA MAT) 10.0 is resulting in a S878 Abend.

Resolution:

If you attempt to monitor a job that may be spinning off a lot secondary address spaces and CA MAT is trying to fire up a measurement for each and every one of them, this error can occur.  This would be the APAR to handle this error:  RO84616

++PTF (RO84616) 

/************************************************************************** 

S878 DUE TO MONITORING SPAWNED USS PROCESSES 

PROBLEM DESCRIPTION: 

When measuring an address space that spawns additional USS processes, 

CA MAT starts measurements for these address spaces too. This is a useful 

feature, but if the address space being measured spawns a high number of 

processes the CA MAT server can be overloaded with monitoring requests 

and run out of memory in a subpool. The PTF makes this feature optional. 

SYMPTOMS: 

S878 or similar abend, or S40D abend if memory ran out during recovery 

<END> 

Also make sure that in TUNSSP00 that USSMON = NO.