Overview

A user may want to cancel an executing Universal Connector job that supports client and / or network fault tolerance and have both the Universal Connector and SAP processes terminate immediately. Because of the separation of work between Universal Connector and SAP, when the Universal Connector client is terminated, the SAP job continues to execute.

In particular, z/OS supports a CANCEL command that will terminate a job executing on the z/OS operating system. When a Universal Connector job is cancelled via the z/OS CANCEL command, the job terminates with either of these exit codes:

• S122, if job is cancelled with a dump.
• S222, if job is cancelled without a dump.

Part of the responsibility of a Universal Broker executing on a particular host is to monitor the status of all locally running manager processes on that machine. So, when instructed, that Universal Broker could invoke a new instance of Universal Connector and issue a CANCEL command to terminate the associated SAP job.

Exit Codes

Through the use of the SERVER_STOP_CONDITIONS configuration option, the Universal Connector process notifies the locally running Universal Broker of the exit codes that should cause it to terminate the running SAP job. With this option, you can specify a list of exit codes that should trigger the locally running Universal Broker to invoke a Universal Connector process to terminate the SAP job.

SERVER_STOP_CONDITIONS can specify a single exit code or a comma-separated list of exit codes. These stop conditions are passed from the manager to the locally running Universal Broker, which stores this and other component-specific data about the executing manager component. When this executing Universal Connector process is cancelled or stopped, the locally running Universal Broker detects the ending of the manager process and retrieves its process completion information, which includes the exit code of the manager.

The Universal Broker then compares this exit code with the list of exit codes provided by SERVER_STOP_CONDITIONS. If a match is found, the Universal Broker will invoke a new instance of the Universal Connector to execute a CANCEL command to terminate the running SAP job.