If you are trying to run log streams logged from production with many terminals (i.e. more than 1000) and you encounter
DFHAC2236 07/21/2015 05:06:40 A25ICIC1 Transaction XTCA abend CORE in program XTCAMAIN term C014. Updates to local recoverable resources will be backed out.
+DFHSM0133 A25ICIC1 CICS is under stress (short on storage above 16MB)
You likely have to increase the EDSALIM parameter.
That means when logging a large number of terminals will also need to increase the size of the CICS SIT parameter EDSALIM.
For example EDSALIM=64M likely won't be enough for 1000 terminals. EDSALIM=96M should be enough in this case.