Depending on the one-jobname restriction was indeed a 'convenient' method of serialization--but a method fraught with peril. Along with the one-jobname restriction a shop would also need to run with only one internal reader because if more than one, it's unpredictable which of two like-named jobs would get initiated first. So one at a time, yes, but out of order. Otherwise the whole system was hampered by a single threaded entry for all jobs regardless of name.
One-jobname was always a poor man's solution to a complex problem. With even a modestly sophisticated job scheduling system, serialization was achieved far more capably. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-543-6132 Office ⇐=== NEW [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Paul Gilmartin Sent: Thursday, September 14, 2017 9:54 AM To: [email protected] Subject: (External):Re: Can you run multiple jobs with the same job name at the same time on JES2? On Thu, 14 Sep 2017 11:17:38 -0500, Steve Beaver wrote: >You're talking it's about a change that is possible but it would be >such a shock to people from what they know he's probably going to get >fired for that one > I wonder if Ed Jaffe knows of anyone who got fired? It feels as if Steve is rationalizing a MISCONCEPTION. I wonder how an ISV's removing the restriction (or not doing so) plays with customer emulation testing? (New options exponentially increase the burden of such testing.) I wonder how all this plays with the SUBMIT command and 8-character TSO IDs? >> -----Original Message----- >> From: Steve Beaver >> Sent: Thursday, September 14, 2017 10:23 AM >> >> The SYSTEM will NEVER allow you to run 2 or more batch jobs with the same >> name. That lock/prohibition has been There since JES was written. It been >> a convenient way to single thread multiple jobs with the same name. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
