DSENQSHR on the job card. Tried that too. Didn't work.

Mark Jacobs

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On Tuesday, February 18th, 2025 at 1:54 PM, Allan Staller 
<[email protected]> wrote:

> Classification: Confidential
> 
> There was an option added in one of the recent z/OS releases to "downgrade 
> the enque"
> e.g. step1 "creates" the dataset with an exclusive enque. Once the need for 
> exclusive control has been satisfied, the enque gets downgraded to shared.
> 
> I don't remember the exact language, but that ius the gist of it.
> 
> HTH,
> 
> -----Original Message-----
> From: IBM Mainframe Discussion List [email protected] On Behalf Of 
> Mark Jacobs
> 
> Sent: Tuesday, February 18, 2025 12:47 PM
> To: [email protected]
> Subject: Re: Enqueue Question
> 
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> 
> I tried that. Didn't work.
> 
> Mark Jacobs
> 
> Sent from ProtonMail, Swiss-based encrypted email.
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> 
> 
> 
> On Tuesday, February 18th, 2025 at 1:41 PM, Charles Mills [email protected] 
> wrote:
> 
> > I am surprised that would fail but I don't know SVC 99 well enough to say 
> > "no, that's wrong."
> > 
> > Seeing as the job is set up with the dataset already "hard coded" in Step 2 
> > -- why not allocate it with JCL in Step 1?
> > 
> > If you do that would the SVC 99 then succeed (so you would not have to 
> > change your code)? I don't know.
> > 
> > Charles
> > 
> > On Tue, 18 Feb 2025 18:29:37 +0000, Mark Jacobs [email protected] 
> > wrote:
> > 
> > > I have a two step job. Step 1 attempts to perform a dynamic allocation of 
> > > a dataset. It's failing since step 2 allocates the dataset DISP=SHR, and 
> > > the enqueue is already created before the dynamic allocation is attempted.
> > > 
> > > Is there anyway around this problem?
> > 
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