JPH02280237A - System for controlling transaction processing time - Google Patents

Abstract

PURPOSE:To prevent the processing of a transaction from being compulsorily completed at the time of exceeding a passage restriction time in the middle of the normal transaction processing by resetting the passage restriction time in the middle of the processing of the transaction. CONSTITUTION:A transaction passage time information acquiring means 10 takes out a passage restriction time and a start time from a passage time information storage area 5 and the passage time is obtained based on the start time and a time read from a timing means 37. Next, a transaction processing means 8 decides whether the passage restriction time is proper or not based on the passage time restriction time taken out by the acquiring means 10 and the passage time to be obtained, and in the case of the inproper passage restric tion time, a reset passage restriction time is set. A passage restriction time resetting means 9 outputs an instruction to set a reset passage time decided by an on-line transaction processing means into the storage area 5 to a passage time supervising means 4. Thus, the processing of the transaction is prevented from being compulsorily processing-completed because the passage restriction time is exceeded in the middle of the normal transaction processing.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an elapsed time limit control method that can reset the elapsed time limit of a transaction in an online transaction processing system [Prior Art] In an online transaction processing system. teeth,
System resources (
In order to prevent a central processing unit (for example, a central processing unit, etc.) from being occupied, an elapsed time limit (that is, the maximum allowable processing time for that transaction) is set depending on the type of transaction. If the processing time for one transaction exceeds the elapsed time limit, the processing of that transaction is terminated. This elapsed time limit can be set only at the beginning of transaction processing.

[Problem to be solved by the invention]

As mentioned above, the conventional method for setting the elapsed time limit for transaction processing is that the elapsed time limit is set at the start of transaction processing depending on the transaction type, and cannot be changed during processing. The same elapsed time limit is set for each transaction, even if the processing time differs depending on the content of the transaction. Therefore, ■Even though normal transaction processing is being performed, the transaction processing may be forcibly terminated because the elapsed time limit has been exceeded, or ■Transaction processing abnormalities such as infinite loops due to program errors may occur. Detection may be delayed. As described above, the conventional transaction elapsed time limit setting method has problems that need to be solved.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a transaction processing time control method that can reset the elapsed time limit during transaction processing.

[Means to solve the problem]

In order to achieve the above object, the transaction processing time control method of the present invention sets an elapsed time limit for an input transaction, and stops processing the transaction when the processing time of the transaction exceeds the elapsed time limit. In the online transaction processing system that has been discontinued, a clock means for measuring time; an elapsed time monitoring means for storing the elapsed time limit and the time read from the timer as a start time in an elapsed time information storage area; and the elapsed time. transaction elapsed time information acquisition means that retrieves the elapsed time limit and start time from the information storage area and calculates the elapsed time based on the start time and the time read from the time measurement means; transaction processing means that determines whether the elapsed time limit is appropriate based on the elapsed time limit determined and the obtained elapsed time, and resets the elapsed time limit if the elapsed time limit is not appropriate, and the online transaction processing means; and elapsed time limit resetting means for issuing an instruction to the elapsed time monitoring means to set the determined reset elapsed time in the elapsed time information storage area.

[Effect]

In the transaction processing time control method of the present invention, the timer measures the time, and the elapsed time monitoring means stores the elapsed time limit and the time read from the timer as a start time in the elapsed time information storage area. Then, the transaction elapsed time information acquisition means retrieves the elapsed time limit and start time from the elapsed time information storage area, and calculates the elapsed time based on this start time and the time read from the timer.Next, the transaction processing means , determines whether the elapsed time limit is appropriate based on the elapsed time retrieved by the transaction elapsed time information acquisition means and the obtained elapsed time, and if it is not an appropriate elapsed time limit, sets a reset elapsed time limit. The elapsed time limit resetting means issues an instruction to the elapsed time monitoring means to set the reset elapsed time determined by the online transaction processing means in the elapsed time information storage area.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. The transaction processing time control method of the present invention includes a transaction elapsed time limit specifying means 1, a transaction elapsed time limit storage area 2, a transaction execution control means 3, an elapsed time monitoring means 4, an appropriate time information storage area 5, and a transaction forced termination means. 6, elapsed time monitoring cancellation means 7, transaction processing program 8, elapsed time limit resetting means 9, transaction elapsed time information acquisition means 10, and timer (time measuring means) 37.

FIG. 2 is a flowchart showing an example of processing by the transaction execution control means 3, FIG. 3 is a flowchart showing an example of processing by the elapsed time monitoring means 4, and FIG. 4 is a flowchart showing an example of processing by the elapsed time limit resetting means 9.

Hereinafter, the operation of the embodiment of the present invention will be explained using each figure.

First, the transaction elapsed time limit specifying means 1 stores transaction elapsed time limit information in the transaction elapsed time limit storage area 2 in advance. Transaction execution control means 3
When the transaction is accepted, the transaction execution control means 3 performs a predetermined transaction start process in step S21, as shown in FIG. 2, and refers to the transaction elapsed time limit storage area 2 in step S22, Next, it is determined whether the transaction elapsed time limit information retrieved in step 323 specifies an elapsed time limit.

When the elapsed time limit is specified, the elapsed time monitoring means 4 is passed the elapsed time limit information and activated in step S24.

The activated elapsed time monitoring means 4 notifies the timer 37 of the elapsed time limit information in step S31, as shown in FIG. Then, in step S32, the time (referred to as the current time) is read from the timer 37, and the current time and elapsed time limit information are stored in the elapsed time information storage area 5. Next, the transaction execution control means 3 is notified that the processing has ended.

When the transaction execution control means 3 receives this notification or when the elapsed time limit is not set in step 323, it starts the transaction processing program 8 in step S25.

The activated transaction processing program 8 performs predetermined processing on the transaction, and notifies the transaction execution control means 3 that the processing has been completed.

Transaction execution control means 3 that received this notification
As shown in FIG. 2, in step S26 it is determined whether an elapsed time limit has been set for the transaction. When an elapsed time limit is set,
In step 327, the elapsed time monitoring canceling means 7 is activated.

In response to this, the elapsed time monitoring canceling means 7 notifies the timer 37 that the elapsed time monitoring request set by the elapsed time monitoring means 4 is to be canceled. As a result, the timer 37 stops monitoring the elapsed time.Next, the elapsed time monitoring canceling means 7:
The transaction execution control means 3 is notified that the processing has ended.

When the transaction execution control level 3 receives this notification or when the elapsed time limit is not set in step S26, it performs a predetermined transaction end process in step S28.

Next, the operation when the transaction processing program 8 changes the elapsed time limit while processing a transaction will be described. The transaction processing program 8 activated as described above activates the transaction elapsed time information acquisition means 10 when it becomes necessary to change the elapsed time limit while processing a transaction.

Activated transaction elapsed time information acquisition means 10
First, referring to the elapsed time information storage area 5, the transaction processing program 8 obtains the elapsed time limit information and the current time regarding the transaction being processed. Then, based on this current time, the transaction processing program 8 calculates a processing time value, that is, an elapsed time value for the transaction, and passes this elapsed time value to the transaction processing program 8.

The transaction processing program 8 determines whether the elapsed time limit is an appropriate value based on the received elapsed time value and elapsed time limit information and the processing details for the transaction. If the elapsed time limit value is not appropriate,
The elapsed time limit resetting means 9 is passed the elapsed time limit information and activated. At this time, when setting a new elapsed time limit value, pass the reset elapsed time limit, but when not setting an elapsed time limit value, pass information indicating that there is no reset elapsed time limit, indicating that the elapsed time limit is not set. .

The activated elapsed time limit resetting means 9 activates the elapsed time monitoring canceling means 7 in step 341, as shown in FIG. The activated elapsed time monitoring canceling means 7 notifies the timer 37 that monitoring of the elapsed time limit is to be discontinued.

Next, the elapsed time limit resetting means 9 determines whether the information received from the transaction processing program 8 in step S42 is reset elapsed time limit information. When the reset elapsed time limit information is determined, the reset elapsed time limit information is passed to the elapsed time monitoring means 4 and activated in step 343. The activated elapsed time monitoring means 4 instructs the timer 37 to monitor the elapsed time. In this way, the elapsed time limit for the transaction being processed can be reset.

Further, as described above, when the transaction execution program is processing a transaction, the timer 37
notifies the elapsed time monitoring means 4 when the internal timer exceeds the transaction elapsed time limit. Upon receiving this notification, the elapsed time monitoring means 4 activates the transaction forced termination means 6 in step S33, as shown in FIG.

In response to this, the transaction forced termination means 6 instructs the transaction processing program 8 to terminate transaction processing. Then, the transaction processing program 8 stops processing that transaction.

〔Effect of the invention〕

As described above, the transaction processing time control method of the present invention can change the elapsed time limit during processing of the transaction.

Therefore, by adopting the transaction processing time control method of the present invention, ■ it is possible to prevent the processing of a transaction from being forcibly terminated due to the elapsed time limit being exceeded even though the transaction is being processed normally; (1) It is possible to appropriately detect transaction processing abnormalities such as infinite loops caused by program errors.

elapsed time information acquisition means, 37... timer;

Agent: Patent Attorney Nakasuke Honjo

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a flowchart showing an example of processing by the transaction execution control means 3, FIG. 3 is a flowchart showing an example of processing by the elapsed time monitoring means 4, and FIG. 4 is a flowchart showing an example of processing by the elapsed time monitoring means 4. 3 is a flowchart showing an example of processing by time limit resetting means 9; 1...Transaction elapsed time limit designation means, 2.
...Transaction elapsed time limit storage area, 3...
Transaction execution control means, 4: Elapsed time monitoring means, 5: Elapsed time information storage area, 6: Transaction forced termination means, 7: Elapsed time monitoring canceling means, 8: Transaction processing program , 9...
・Means for resetting the elapsed time limit, 10...Transaction time limit t#l:+p foot 4 embedded IUH display T island time 3rd figure

Claims (1)

[Scope of Claim] An online transaction processing system that sets an elapsed time limit for an input transaction, and stops processing the transaction when the processing time of the transaction exceeds the elapsed time limit. elapsed time monitoring means that stores the elapsed time limit and the time read from the timer as a start time in an elapsed time information storage area; extracts the elapsed time limit and start time from the elapsed time information storage area; , a transaction elapsed time information acquisition means for determining the elapsed time based on the start time and the time read from the time measurement means, and an elapsed time limit retrieved by the transaction elapsed time information acquisition means and the determined elapsed time. transaction processing means that determines whether the elapsed time limit is appropriate based on the elapsed time limit and sets a reset elapsed time limit if the elapsed time limit is not appropriate; and the elapsed time information that determines the reset elapsed time determined by the online transaction processing means. A transaction processing time control method, comprising: elapsed time limit resetting means for issuing an instruction to the elapsed time monitoring means to set the time limit in a storage area.