JPS6089252A - Software logic trouble saving system - Google Patents

Abstract

PURPOSE:To obtain elimination or minimization of a system shutdown by providing a trouble saving-information collecting means and a transaction invalidating means. CONSTITUTION:When software logic trouble occurs while transaction is executed, a trouble saving part 4 starts 23 a trouble saving-information collecting part 14, the information discrimination which is required by a transaction executing part 2 is extracted 24 from a common interface area part 3, and the objected information is extracted from a memory storage part 7. The extracted information is outputted to a display part 15 and a secondary storage part 16. The trouble saving part 4 actuates a transaction invalidating part 5, and this transaction invalidating part 5 makes the transaction at the time of occurring trouble invalid, and executes operation from the next transaction.

Description

[Detailed Description of the Invention] Technical field to which the invention pertains The present invention avoids system down events caused by software logic failures, such as data mismatches, pure program logic errors, interface errors, etc. that occur during transaction execution. This invention relates to a software logical fault relief method for.

Conventional technology Conventionally, when a software logical failure occurs in the transaction execution process, the system is generally brought down, the failure information is collected and analyzed, the causal transaction is isolated, and the system is restarted after operations are prevented from restarting. I'm starting it.

In the case of conventional systems, the scale of the service functions provided is small and the social impact is small, so software logical failures that occur due to the execution of specific transactions are treated as a uniform system downtime, and the recovery time after a downtime is shortened as much as possible. This is dealt with using a method. 17 Therefore, conventionally, the entire service provided by the system is interrupted, that is, the system goes down frequently. As a result, this has caused great loss to the elderly who use the system, and a sense of distrust in the system.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a software logical fault relief method that limits the scope of service interruption to the transaction that caused the fault and controls the service interruption of the entire provided service.

Structure of the Invention The method of the present invention includes a relief information collection means for collecting various types of relief information for analysis of the cause of logical failure, notification of failure occurrence, etc. upon occurrence of a software logical failure, and a failure transaction. and transaction invalidation means for invalidating transaction execution.

Embodiments of the Invention Next, the present invention will be described in detail with reference to the drawings. Referring to FIG. 1, the first embodiment of the present invention is comprised of table rescue means and transaction invalidation means.

Referring to FIG. 2, the table rescue means includes a transaction input section 1, a transaction execution section 2, a table access section 6, a memory storage section 7, an exclusive control section 8, a pre-update image storage section 9, and a rescue processing section 4. , the table relief part 1o.

Referring to FIG. 3, the transaction invalidation means includes a transaction input section 1, a transaction execution section 2, a common interface area section 3, a relief processing section 4, and a transaction invalidation section 5.

Next, the operation of the first embodiment will be explained in detail. Referring to FIG. 2, in the table rescue means, a transaction execution unit 2 operates by a transaction manual input 21 from a transaction input unit 1. The transaction execution unit 2 makes a request 22 to the table access unit 6 for a table based on the memory storage method that it wants to refer to or update. The table access unit 6 issues an exclusive use request 23 to the exclusive control unit 8 in order to exclusively use the requested table. The exclusive control unit 8 performs a usage permission 24 if no other transaction execution unit 2 is in use. Next, the table access unit 6 performs the requested table reference 25 update 27.

The table access unit 6 transfers the table contents to the pre-update image storage unit 9 before updating the requested table (2
6). Next, the reference and update results are returned to the transaction execution unit 2 (28).

On the other hand, the relief processing section 4 is activated 29 due to a software logic failure occurring during the operation of the transaction execution section. If the system requires table relief, the relief processing section 4 activates the table relief section 1o by 3°. The table rescue unit 10 extracts 31 the memory table before-update image from the table-before-update image storage unit 9 . Next, the extracted pre-update image is passed to the table access unit 6, and reference and update '5r are executed to restore the table to the state before the start of the transaction. A system that only requires table rescue means then uses transaction invalidation means to execute from the next transaction. Next, details of one embodiment of the operation of the transaction invalidation means will be described below.

Referring to FIG.
1 causes the transaction execution unit 2 to operate. The transaction execution unit 2 transfers 22 information such as a return address when a logical failure occurs and a logical failure status report to the common interface area unit 3 before starting processing. When a software logical failure occurs during transaction execution, the relief processing unit 4 is activated 23. The relief processing unit 4 transfers the identification of the transaction that caused the activation to the all common interface area unit 3 (24).

In other words, it is possible to reject subsequent identical transactions. Next, the relief processing unit 4 activates 25 the l.ranzaktion invalidation unit 5. The transaction invalidation unit 5 receives 26 a return address from the common interface area unit 3.

Next, the transaction invalidation unit 5 selects whether or not the transaction execution unit 2 can invalidate the transaction based on the return transaction execution conditions, and invalidates the transaction or
There is also a method that allows you to select system down.

Referring to FIG. 1, the second embodiment of the present invention is comprised of a file rescue means and the transaction invalidation means. Referring to FIG. 4, the file rescue means includes a transaction manual section 1, a transaction execution section 2, a file access section 11, an exclusive control section 8,
It is composed of a disk file 12, a pre-update image storage section 9, a rescue processing section 4, and a file rescue section 13. The structure of the transaction invalidation means is the same as that of the transaction invalidation means of the first embodiment.

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

In the file rescue means, a transaction execution section 2 operates in response to a transaction input 21 from a transaction manual section 1. The transaction execution unit 2 requests the file access unit 11 for the record identification ID of the disk file to be referenced or updated (22) o The file access unit 11 requests the exclusive control unit 8 to exclusively use the requested record. Exclusive use request 23 is made. The exclusive control unit 8 performs a usage permission 24 if no other transaction execution unit 2 is in use. Next, the file access unit 11 performs reference 25 and update 27 of the requested record. The file access unit 11 transfers the record contents to the pre-update image storage unit 9 before updating the requested record (26).

Next, the reference and update results are returned to the transaction execution unit 2 (28). On the other hand, when the transaction execution section is operating, the relief processing section 4 is activated 29 due to the occurrence of a software logical failure. If the system requires file rescue, the rescue processing unit 4 activates the file rescue unit 13 (step 10). The file rescue unit 13 extracts the pre-update image 11 from the file pre-update image storage unit 9 at line 9. The file rescue unit 13 then passes the extracted pre-update image to the file access unit 11 for reference and full update execution, and performs all updates before starting the transaction. After restoring the file to the state it was in, a system that only requires file rescue means will then use transaction invalidation means to execute from the next transaction. The details of the operation of the transaction invalidation means are the same as those of the transaction invalidation means of the first embodiment.

Referring to FIG. 1, the third embodiment of the present invention is comprised of a relief information collection means and the transaction invalidation means.

Referring to FIG. 5, the relief information collection stage 1 includes a transaction execution unit 1, a common interface, a storage area unit 3, a relief processing unit 4, a relief information collection unit 14, a memory storage unit 7, a display unit 15, and a secondary storage. It consists of a section 16. The structure of the transaction invalidation means is the same as that of the transaction invalidation means of the first embodiment. Next, this fruit! ii! The operation of it,"O will be explained in detail.

The relief information collecting means stores the information identification desired by the transaction execution unit 2C21 in the common interface area r unit 3 before starting the transaction execution process.
21). Next, as soon as a software logical failure occurs during transaction execution, the relief processing unit 4 is activated 22.

Next, the relief processing unit 4 activates the relief information collection unit 14 (23).
Extract 24 the information identification in . Next, the relief information collection unit 14 extracts target information 25 from the memory storage unit 7. Next, the relief information collection unit 14
6 and the secondary storage section 27. Relief information collection (%
A good system then uses transaction invalidation means to execute on the next transaction. The details of the operation of the transaction invalidation means can be found in Part 1.
This is the same as the transaction invalidation means in the embodiment.

In the embodiment, each relief means is used individually, but depending on the system requirements, it is also possible to combine the relief means of the fourth to third embodiments.

Effects of the Invention The present invention has the effect that by equipping various information processing systems with the present software logical failure relief method, system downs caused by software logical failures of various causes can be eliminated or minimized. There is.

[Brief explanation of the drawing]

1 is a diagram showing the first, second and third embodiments of the present invention, FIG. 2 is a diagram showing the table relief means of FIG. 1, and FIG.
Figure 4 shows the transaction invalidation means in Figure 1, Figure 4 shows the file rescue means in Figure 1, and Figure 5 shows the transaction invalidation means in Figure 1.
The figure is a block diagram showing the relief information collection means of FIG. 1. 1 to 5, 1...transaction input section, 2...transaction execution section, 3...common interface area section, 4...
. . . Relief processing section, 5 . . . Transaction invalidation file, 6 . . . Table access section, 7
...Memory storage unit, 8...Exclusive control unit, 9...Pre-update image storage unit, 10...
...Table relief part, 11...File access part, 12...Disk file, 13...
. . . File rescue section, 14 . . . Relief information collection section, 15 . . . Display section, 16 . . . Secondary storage section. Cal flash

Claims (1)

[Claims] Relief information collection means that collects various types of relief information in order to analyze the cause of the logical failure and notify the failure when a software logical failure occurs; and transaction invalidation means that invalidate the execution of the transaction in which the failure has occurred. A software logical fault relief method characterized by comprising: