Resolution:
Cause
= = = =
Program may not be able to obtain enough memory from OS.

Resolution
==========
1). Try to set the JCL statement to REGION=0M.  This means that there is no maximum size of the execution region for any job step in the job.

2). The amount of memory used is also affected and controlled by the UOPT (User Options) setting. This can be linked into a program or used system wide.

How to test and see this is by adding the following JCL:

//CEEOPTS  DD *
   RPTSTG(ON)

Environment
============
MVS