On Fri, Jul 7, 2017 at 9:59 AM, Donald Likens <[email protected]> wrote:
> We run our product on somewhere around 15 client site. We have had this > problem on one client site (multiple LPARs) since we started running there. > We have only seen this problem on one other system during a trial (they did > not keep the product). The client site that sees this problem sees it > randomly but multiple times during a week. The code for where I think the > problem exists is in the original listserv entry. What we are doing is > using the IEFU8X (3,4,5) exits to extract SMF records and place them in a > FIFO control block chain in CSA to be processed and removed by an STC. I > created a batch procedure that reads SMF records and passed them to the > active IEFU8x exit. We ran this batch process on our test system multiple > times duplicating the client’s environment using SMF data supplied from 1 > hour before and 1 hour after the problem showed up at the client’s site. It > feed 297,092 records into our product in 6 minutes and IT WORKED PERFECTLY > every time. > > Does anyone have any ideas on what could cause this situation? > > Any help is appreciated. > My SWAG is that there is a problem with serializing the addition and/or deletion of entries in the FIFO queue. I.e. two different CPUs are trying to add (maybe delete) a FIFO entry and one CPUs update is "lost". Without looking at code, this is just a guess. -- Veni, Vidi, VISA: I came, I saw, I did a little shopping. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
