OpenTP1 Version 7 Programming Guide

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Appendix C.4 Notes

  1. Installation of TP1/Extension 1 is a prerequisite for using the multi-scheduler facility. If you have not installed TP1/Extension 1, operation is not guaranteed. For details on the multi-scheduler facility, see the manual OpenTP1 System Definition or OpenTP1 TP1/Client User's Guide TP1/Client/W, TP1/Client/P.
  2. When applying the multi-scheduler facility, you have to change the system definitions. You may also have to change the kernel parameters if you increase the number of scheduler daemons.
  3. If a service group within the OpenTP1 system contains both a user server that uses the multi-scheduler facility and a user server that does not, note the following:
    • All service requests issued using the multi-scheduler facility will initially be allocated to the user server that uses the multi-scheduler facility for load distribution.
    • Service requests issued using the multi-scheduler facility will not be allocated to the unequipped user server, even in situations when the multi-scheduler facility equipped user server is heavily loaded. To distribute the load from a heavily-loaded user server equipped with the multi-scheduler facility to an unequipped user server, specify the -t option to the scdmulti definition command for schedule service definition. For details on the scdmulti definition command, see the description of the schedule service definition in the manual OpenTP1 System Definition.