W dniu 2014-10-29 o 15:10, Peter Hunkeler pisze:
Some hints:
REGION=0 means ignore MEMLIMIT.
I understand that specifying REGION=0K/M and *not* specifying MEMLIMIT (and not
having IEFUSI limiting it) implies MEMLIMIT=NOLIMIT. But if MEMLIMIT *is*
explicitly specified, it will be honoured and REGION=0K/M does not have any
influence in MEMLIMIT.
Correct.
DFSORT can consume memory even if MEMLIMIT is applied. It would use
dataspaces or hiperspaces instead. Does the ulitility invoke DFSORT
under the cover?
Do you say that DFSORT will ignore MEMLIMIT?
Yes, and no.
I had problems with some DB2 ulitity (reorg) which use DFSORT under the
cover. It consumed to much virtual memory causing paging.
I set MEMLIMIT in the jobcard. After that the problem still occured, but
DFSORT, instead of using 64-bit memory objects, was using dataspaces and
hiperspaces. So, formally MEMLIMIT was honored, because
dataspace/hiperspaces do not count for the limit.
After that I limited total amount of memory for DFSORT (some DFSORT
knob) and it helped.
Regards
--
Radoslaw Skorupka
Lodz, Poland
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