JPS63245732A - Job discrimination number unifying system in multiplex host system - Google Patents

Abstract

PURPOSE:To simplify the job operation and management of a job to be executed by unifying global job discrimination numbers in a multiplex host system sharing a spool file between multiplex hosts. CONSTITUTION:When a global job is applied to each host, a global job discrimi nation number acquisition request is outputted from the host and received by a global job discrimination number acquiring means 20. Exclusive control of access to a maximum global discrimination number storing part 40 between respective hosts is executed by a maximum global discrimination number storing part exclusive controller 30, and when an accessible state is kept, a global job discrimination number to be successively allocated obtained by referring the storing part 40 is allocated to the global job. Then, the storing part 40 is updated and the end of access to the storing part 40 is informed to the control part 30.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multihost system in which data stored in a spool file is shared among a plurality of operating systems each having a different operating system. This invention relates to a method for unifying global job identification numbers to simplify job operation and management.

[Conventional technology]

In a conventional multihost system in which data such as input/output data stored in spool files is shared between multiple hosts, each of which is a different operating system, a certain operating system (hereinafter referred to as O8) is used.
A global job identification number was assigned to each O8 (a host for submitting global jobs that requests other O8s for processing), and a unified number was not used among all hosts.

[Problem that the invention seeks to solve]

In the conventional multihost system described above in which spool files are shared between multiple hosts (O8s), there were duplicate global job identification numbers assigned by each O8, making it difficult to operate and manage jobs. The method was complicated.

[Means for solving problems]

The present invention is a global job identification number unification method for simplifying job operations and management of jobs executed in a multihost system in a multihost system in which spool files are shared among multiple hosts.

That is, in a multihost system in which spool files are shared between multiple hosts, maximum global job identification number storage means (hereinafter referred to as maximum global job identification number) stores the maximum value of the identification number of global jobs executed in the multihost system. maximum global job identification number storage exclusive control means for exclusively referencing and updating this maximum global job identification number storage between hosts (hereinafter referred to as maximum global job identification number storage exclusive control device) maximum global job identification number initial value setting means for setting an initial value in the maximum global job identification number storage unit based on system generated information when the system is started up; A global job identification number acquisition request reception means that receives a global job identification number acquisition request, and each time a global job identification number acquisition request is received by the global job classification number acquisition request reception means, the maximum global job identification number storage section is excluded. A maximum global job identification number storage access notification means for notifying the control device of access to the maximum global job identification number storage, and a maximum global job identification number when access is made possible by this maximum global job identification number storage access notification means. Maximum global job identification number reference means that refers to a number storage unit and obtains a global job identification number to be assigned next; and a global job that assigns the global job identification number obtained by this maximum global job identification number reference means to the global job. identification number allocating means; maximum global job identification number updating means for updating the maximum global job identification number in the maximum global job identification number storage unit after being allocated by the global job identification number allocation means; and said maximum global job identification number. maximum global job identification number storage access end notification means for notifying the storage exclusive control device that access to the maximum global job identification number storage has ended;

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Referring to FIG. 1, one embodiment of the present invention includes a maximum global job identification number storage unit 40, a maximum global job identification number initial value setting means 10, a global job identification number allocation means 20, and a maximum global job identification number It is composed of a number storage unit exclusive control device 30.

Further, the global job identification number acquisition means 20 includes a global job identification number acquisition request reception means 21 and a maximum global job identification number storage unit access notification means 22.
Maximum global job identification number storage unit reference means 23;
It is composed of a global job identification number side spiral means 24, a maximum global job identification number changing means 25, and a maximum global job identification number access end notification means 26.

Next, the operation of this embodiment will be explained in detail using the drawings.

Referring to FIG. 1, when the system is started, the initial value of the global job identification number is set in the maximum global job identification number storage unit 40 by the maximum global job identification number storage unit 10 using the system generated information 50. Set. When a global job is submitted in each host, a global job identification number acquisition request is made, and the acquisition request is accepted by the global job identification number acquisition request receiving means 21 of the global job identification number acquisition means 20. Next, the maximum global job identification number storage unit access notification means 22 notifies the maximum global job identification number storage unit exclusive control device 30 of the access, and enters a waiting state until an access permission notification is returned. The maximum global job identification number storage unit exclusive control device 30 performs exclusive control of access to the maximum global job identification number storage unit 40 between hosts, and returns an access permission notification if the access is possible. Upon receiving the access permission notification from the maximum global job identification number storage unit exclusive control device 30, the maximum global job identification number storage unit 4 is accessed by the maximum global job identification number storage unit reference means 23.
0 is referenced, the global job identification number to be assigned next is obtained, and the global job identification number assignment means 2
4, a global job identification number is assigned to the global job. After the global job identification number is allocated, the maximum global job identification number storage section 40 is updated by the maximum global job identification number storage section changing means 25, and the maximum global job identification number storage section access completion notification section 26 is updated. As a result, the maximum global joy identification number storage unit exclusive control device 30 is notified that access to the maximum global job identification number storage unit 40 has been completed.

Next, the operation of the maximum global job identification number storage unit exclusive control device 30 shown in FIG. 2 will be explained in detail.

Referring to FIGS. 1 and 2, when the maximum global job identification number storage unit exclusive control device 30 receives a notification from the global job identification number acquisition means 20 in step 31, the maximum global job identification number storage unit 30 receives the notification from the maximum global job identification number storage unit. Although the access notification is made by the access notification means 22,
In step 32, it is determined whether the notification is the maximum glow I or job ID number storage access end notification. If it is a notification or an access notification, check whether the other host (O8) is currently accessing the maximum global job identification number storage unit 40 or not, that is, the previous host (O8) cannot access it. Step 33
will be judged. If it is accessible, step 34
The state is changed to inaccessible at step 35, and an access permission notification is returned to the host at step 35. If the maximum global job identification number storage unit 40 is being accessed from another host (O8) and cannot be accessed, it is registered in a first-in, first-out (FIFO) key waiting for access permission in step 36, and the process ends. If it is determined in step 32 that the notification is a termination notification, if there is a queue in the FIFO queue, an access permission notification is returned to the host; if there is not, the host is returned to an accessible state and the process ends.

〔Effect of the invention〕

As explained above, the present invention centralizes the global job identification number in a multihost system in which spool files are shared among multiple hosts, so that jobs can be manipulated and processed without being aware that they are global jobs. It has the effect of being manageable.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. i is a flowchart for explaining the operation of the maximum global job identification number storage exclusive control device 14.

Claims (1)

[Scope of Claims] In a multi-host system in which spool files are shared between multiple hosts, maximum global job identification number storage means for storing the maximum value of identification numbers of jobs executed in the multi-host system; Maximum global job identification number storage exclusive control means for exclusively referencing and updating maximum global job identification number storage means between hosts, and acquisition of a global job identification number for the global job when the global job is submitted. a global job identification number acquisition request receiving means for accepting requests, and a maximum global job identification number stored in the maximum global job identification number storage exclusive control means each time the global job identification number acquisition request receiving means receives a global job identification number acquisition request; Maximum global job identification number storage access notification means that notifies access to the storage means, and when access becomes possible by this maximum global job identification number storage access notification means, refers to the maximum global job identification number storage means and assigns it next. maximum global job identification number reference means for obtaining a global job identification number; global job identification number assignment means for allocating the global job identification number obtained by the maximum global job identification number reference means to the global job; and this global job identification number. maximum global job identification number updating means for updating the maximum global job identification number in the maximum global job identification number storage means after being assigned by the number allocation means; and maximum global job identification number storage means for the maximum global job identification number storage exclusive control means. A system for unifying global job identification numbers in a multi-host system, comprising: maximum global job identification number storage access end notification means for notifying the end of access to.