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Canceling Jobs Waiting for Resources

IP.com Disclosure Number: IPCOM000079851D
Original Publication Date: 1973-Sep-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Friedman, JW: AUTHOR [+2]

Abstract

In OS/MVT (operating system - multiprogramming with variable number of tasks), when the job scheduler waits for a region or for exclusive use of data set names, a CANCEL Command cannot be processed until that resource is made available. It would often be desirable to remove from the system, a job which requests resources that cannot be provided quickly.

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Canceling Jobs Waiting for Resources

In OS/MVT (operating system - multiprogramming with variable number of tasks), when the job scheduler waits for a region or for exclusive use of data set names, a CANCEL Command cannot be processed until that resource is made available. It would often be desirable to remove from the system, a job which requests resources that cannot be provided quickly.

In OS/VS2 (virtual system), when the job scheduler (Initiator) waits for the resource of either a region or exclusive use of data set names, a CANCEL Command can be processed to terminate the job being initiated. When the job scheduler requests one of the above resources from the Supervisor, the job scheduler indicates that it should receive control back, even if the resources are not immediately available. This enables the job scheduler to either process a CANCEL Command if one is received, or resume normal processing if the resources become available.

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