> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of Tom Marchant
>
> On Fri, 4 Apr 2014 14:48:23 -0400, Moore, Kenneth C. wrote:
>
> >Every webservice CICS region needs to be running the same code. It
> >would seem the way to do this is to keep a read-only pick-up directory
> >mounted everywhere.
> >You would need to unmount the read-only everywhere and update it on one
> >LPAR during some maintenance window
>
> IMO it is a bad idea to update the code in the live data. It is better to
> clone the data and update
> the clone. Then switch to using the cloned copy.
CICS reads the "pickup" directory on three occasions: 1) at CICS startup, if
any PIPELINE resource definitions are configured in the region, 2) when a
PIPELINE resource definition is dynamically (re-)installed, or 3) when a CEMT
PERFORM PIPELINE(name) SCAN command is issued. CICS stores the "live code"
working copy in its "shelf" directory, so the "pickup" directory may be updated
safely "whenever".
-jc-
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