On Fri, 4 Apr 2014 20:11:59 +0000, Chase, John wrote: > >Update from the vendor: The scheduler DOES NOT attempt to acquire exclusive >allocation of a JCL member; it only needs READ access to the JCL library. So, >the entire incident is now explained by the errant user somehow obtaining an >allocation of that library with DISP=OLD, which "locks out" "everybody" from >that library "for the duration". > Sometimes source of similar problems: the C RTL updating a PDS member obtains ENQ EXC SYSDSN. C programs are pretty commonplace now; someone ought to submit a Requirement that the C RTL should use ISPF-style ENQs on PDS members, at least optionallly.
More wishful: JCL should support a new DISP keyword to select ISPF-style ENQs on PDS members so any program could benefit from the facility with no code changes needed. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
