CN107563887B - AS 400-based zero-halt daily cutting method for bank core accounting system - Google Patents
AS 400-based zero-halt daily cutting method for bank core accounting system Download PDFInfo
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Abstract
A zero-shutdown daily cutting method based on an AS400 bank core accounting system comprises the following steps: designing an AB meter: the core batch operation and the running record log date data file generated by the online transaction are separately stored in the same library, the file name suffix is distinguished by adding an AB mark, the previous day online uses the A table, the next day online uses the B table, and the A table is used again for circulation; pre-starting online operation; and (6) auditing. The invention solves the defects of multiple times of on-line stop and long off-line time in a double-bank table switching and tracking method and a double-balance method, realizes real 7x24 hour uninterrupted service on the AS400, avoids the condition of large-area transaction failure of each electronic channel during daily cutting, ensures the stability of other transaction channels such AS agriculture, credit, second-generation payment, silver union and the like, and improves the customer experience and the bank competitiveness.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of computer system application, and particularly relates to a zero-halt daily cutting method based on an AS400 bank core accounting system.
[ background of the invention ]
The current bank core system has to process large data volume business every day, and has to complete data backup and update yesterday balance before cutting day, and provide basic data for total score checking, total number calculation, information calculation, report forming and peripheral system snapshot analysis after cutting day. If the complete customer account data of the previous day is to be backed up and the total score check is guaranteed to be correct, the online backup is stopped before the day is cut, and the account balance of the individual is incorrect because the account is not finished due to halt. The length of the data backup time mainly depends on the size of the banking business volume, the performance of the system hardware and the operating system. With the continuous expansion of banking business, the banking business volume is also increased sharply, the time for backing up data and updating data by a core system before day-to-day is also increased, and the stop time caused by data backup and updating is longer and longer. For banking, it is important to reduce the downtime, ensure continuous uninterrupted service for 7 × 24 hours, and improve the quality of customer service.
According to the proposal of ' bank core system supporting 7x24 hours uninterrupted service analysis ' (Chinese financial computer, 2013 (5): P62-65 '), the bank provides uninterrupted service supporting 7x24 hours, and a double-balance file method, a double-bank table switching tracking method and a daily cutting double-additional file tracking method are commonly adopted. 1. The double balance method is to consider the updating of both balances at the same time at each financial transaction. Two more fields are set in the balance table: "previous day balance", and "most recent update date". When the transaction is carried out on the first day, the current balance is directly assigned to the previous day balance, the current balance is processed, and the latest update date is updated; rather than just updating the "current balance" when the transaction is first of the day. 2. The double-base table switching tracking method stops on-line service when switching day by day, directly updates the current balance of the mobile subscriber to the previous balance, starts the night on-line, records and records the log generated by night on-line transaction when batch operation is performed, and stops on-line to track the night on-line base file into the on-line base file after the batch execution is finished. 3. A daily cutting double-additional-file tracing method refers to a method for simultaneously processing two balance tables, wherein one balance table is a current balance table, and the other balance table is an additional balance table. The current balance table stores the real-time transaction information of the client, and the balance is the latest; the additional balance table stores the information related to the previous day balance, and the balance is the previous day balance. The design table A is a core system date control table, and the design table B is a customer account balance table. Table B1 appends table B1 to the customer account balance. Table B2 appends table B2 to the customer account balance. The "current system date" and the "additional table switching flag" in table a are updated simultaneously at the time of the batch day switching, where the "current system date" represents the system date after the day switching, and the "additional table switching flag" may be switched from "B1" to "B2" or "B2 to" B1 ", and is mainly used to mark which balance additional table should be processed after the date switching.
For a core system adopting an open language (such as Java), a distributed system can be utilized to realize class 7x24 hour service with low downtime by improving the system processing capacity; however, banks using OS400 operating system and AS400 machine AS core system (such AS fujian nong's letter) cannot directly increase system processing capacity by using distributed dynamic addition of machine devices, and at this time, a more appropriate technical solution needs to be adopted to implement 7 × 24 hour service.
The three 7x24 hour service treatment methods mentioned above have the following disadvantages: 1. the double-balance method, the 'previous day balance' field is sometimes not true, and when the total score check of batch at night is used, the yesterday balance needs to be updated completely, so that the 7x24 hour service cannot be really guaranteed; 2. a double-base-table switching tracing method relates to the switching and the disconnection during daily cutting and tracking, and cannot ensure the service of 7x24 hours; 3. the daily cutting double-additional-file tracing method can increase the performance expense of the system, meanwhile, the online is also required to be stopped during tracing, and the 7x24 hour service cannot be guaranteed.
[ summary of the invention ]
The invention aims to provide a zero-halt daily cutting method based on an AS400 bank core accounting system, and real 7-24-hour uninterrupted service is realized.
The invention is realized by the following steps:
a zero-shutdown daily cutting method based on an AS400 bank core accounting system comprises the following steps:
step 1: designing an AB meter:
the core batch operation and the flow entry log date data file generated by online transaction are separately stored in the same library, the file name suffix is distinguished by adding an AB mark, the previous day online uses the A table, the next day online uses the B table, the A table is used again for circulation, and the A table is used for processing the data of the previous day in batch at the end of the next day; in the online transaction program, OVRDBF + OPNDBF points to use the A table or the B table in the main control processing operation, in the batch transaction program, OVRDBF points to use the A table or the B table in the batch start-up operation program, the definitions of the batch program and the online table file are kept unchanged as much as possible, different files in the same library are used for storage, two sets of online services are not needed, the online start-stop times are reduced, and the data file cleaning backup for storing the nighttime online data is saved;
step 2: pre-starting online operation:
after the day switch is started and before the AB mark is changed, the current use of the A table is assumed, the online processing operation uses the A group processor, the file group A is used, partial processing operation is finished according to the number of idle operation, and the B group processor starts to carry out data preparation and pre-start of the next day, including communication queue emptying, original transaction serial number initialization, clearing serial number initialization, local initialization information file initialization and initialization of the network point online work environment table;
after the AB mark is changed, namely the cutting of the day is finished instantly, the transaction before the cutting of the day is finished by the processing of the group A continuously, the transaction after the cutting of the day is processed by the transaction distributor which is accessed to the processor of the group B according to the AB mark, the log pipelining file of the group B is used, the log pipelining file of the group A is processed by batch operation, the situation of conflict lock table is not generated in connection and batch, and the service of 7x24 hours is supported; during the day-to-day period, the communication server is not restarted, the communication port is always in a working state, and the online is always in a service state;
after the initialization at the beginning of the day, the online business and the batch business use the file group B, and the cleaning backup entry operation at the beginning of the day uses the file group A;
and step 3: auditing:
in batch at night, audit processing operation is newly added before general account processing, audit processing summarizes the generation amount of entries generated by each account sub-user, the generation amount comprises the entries of T days and online entries of T +1 days, and yesterday balance is calculated according to the current balance, so that direct updating of yesterday balance of each account module when online is stopped during the day-to-day period is avoided, and after the yesterday balance is updated successfully, general account processing is started according to the correct yesterday balance to perform general account checking.
Further, the specific process of step 3 is as follows:
step 31: for different household modules, including deposit, loan, share, internal account, cash and tail box lamps, an entry audit split file is newly built, and the entry record of the day T is split into corresponding module entry split files;
step 32: the method comprises the following steps that balance check is carried out on account numbers of the account business occurring on the same day through an auditing program of each module, and the yesterday balance is updated after the balance check is passed, wherein the method specifically comprises the following steps:
step 32.1: each module initiates the splitting of a first record of a file from the self entry, and sorts the records by mechanisms, account numbers and currency;
step 32.2: according to the organization, the account number and the currency, the file is split from the entry, and the cumulative debit generation amount and the cumulative credit generation amount of the account are counted;
step 32.3: if the balance direction of the account is the debit, comparing whether the current balance-yesterday balance of the account is equal to the cumulative generation amount of the debit-the cumulative generation amount of the credit; if the account is a lender, comparing whether the current balance-yesterday balance of the account is equal to the cumulative generation amount of the lender-the cumulative generation amount of the lender;
step 32.4: if the comparison in step 32.3 is not equal, then according to the account, in the entry file T +1 after 7 × 24 hours, continuously counting the sum of the borrowing and the loan of the account, and according to the above if the balance direction of the account is in the debit: the yesterday balance is the yesterday balance plus the debit accumulated generation amount in the split file-the credit accumulated generation amount in the split file; otherwise, the yesterday balance is the yesterday balance plus the credit accumulated generation amount in the split file-the debit accumulated generation amount in the split file.
The invention has the advantages that: the method solves the defects of multiple times of daily outage and long outage time in a double-bank-table switching and tracking method and a double-balance method, realizes real 7x24 hour uninterrupted service on the AS400, avoids the condition of large-area transaction failure of each electronic channel during daily cutting, ensures the stability of other transaction channels such AS agriculture, telecommunications, second-generation payment and Unionpay, and improves the customer experience and bank competitiveness.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a pre-dawn intent of the core accounting system before suncut using the A table and B table workgroup of the present invention.
FIG. 2 is a diagram illustrating the switching of the B table by the core accounting system at the switching moment of the day, and the completion of the transaction by the A table task group.
FIG. 3 is a schematic diagram of the operation group A being closed and the core accounting system using the operation group B after the end of the daily cutting according to the present invention.
[ detailed description ] embodiments
The AS 400-based core accounting system has two difficulties for the support technology of 7 × 24 hours, one is to process the yesterday balance, and the other is to clean up and backup the yesterday recorded stream files: 1. for the processing of yesterday balance, the yesterday balance needs to be updated and finished without stopping on-line before the total score check after daily cutting, and normal accounting processing is guaranteed. Aiming at the problem, the invention adopts a mode of pre-starting the next day online and the audit of the dynamic account entry. 2. Yesterday entry and flow file is mainly used for calculating general ledgers during general checking, and needs to be emptied after use to prevent repeated entry into the general ledgers. For cleaning the recorded stream files, a piece of previous date data is deleted according to the transaction date and backed up in the AS400 system, but if the file does not use the REUSEDLT parameter (the REUSEDLT parameter is an optional parameter item of a database file creating command CRTPF of the AS400 system, whether the space occupied by the original record after the database file record is deleted can be recycled for inserting the record of a new writer is defined, and the default parameter value is NO, namely the space for deleting the record is not recycled), even if the file is deleted, the deleted record still occupies the disk space, the file is larger and larger, the transaction writing and deleting operation efficiency is greatly reduced by using the REUSEDLT parameter, and a large number of log records are generated. If a double bank column switching mode is adopted, two entries can clean the other bank column after switching, although resources are consumed, normal service is not affected, and if the double bank column switching mode is not adopted, how to clean the entry flow line needs to be considered. Although the way of directly cleaning the entry stream file and renaming the file to create an empty file can also be adopted for cleaning the entry stream file, the two ways need to generate target lock operation on the file and need to stop online service. To address this problem, the present invention employs an entry AB table.
The technical scheme of the invention is described in detail in the following with reference to the attached drawings:
a zero-shutdown daily cutting method based on an AS400 bank core accounting system comprises the following steps:
step 1: designing an AB meter:
the core batch operation and the flow entry log date data file generated by online transaction are separately stored in the same library, the file name suffix is distinguished by adding an AB mark, the previous day online uses the A table, the next day online uses the B table, the A table is used again for circulation, and the A table is used for processing the data of the previous day in batch at the end of the next day; in the online transaction program, OVRDBF + OPNDBF points to use the A table or the B table in the main control processing operation, in the batch transaction program, OVRDBF points to use the A table or the B table in the batch start-up operation program, the definitions of the batch program and the online table file are kept unchanged as much as possible, different files in the same library are used for storage, two sets of online services are not needed, the online start-stop times are reduced, and the data file cleaning backup for storing the nighttime online data is saved;
step 2: pre-starting online operation:
as shown in fig. 1, after the day switch starts, before the AB flag changes, it is assumed that the a table is currently used, the group a processors are used for online processing operation, the group a processors are used for file group a, partial processing operation is finished according to the number of idle operation, and the group B processors start to perform data preparation and pre-start for the next day, including communication queue emptying, original transaction serial number initialization, clearing serial number initialization, local initialization information file initialization, and initialization of network point online work environment table;
as shown in fig. 2, after the AB flag is changed, that is, the cutting of the day is instantly completed, the transaction before the cutting of the day is continuously completed by the processing of the group a, the transaction after the cutting of the day is processed by the transaction distributor by accessing the group B processor according to the AB flag, the group B journal pipelining T +1 day files are used, at this time, the group a journal pipelining files are processed by batch operation, and the situation of conflict lock table is not generated on-line and batch, and 7 × 24 hours of service is supported; during the day-to-day period, the communication server is not restarted, the communication port is always in a working state, and the online is always in a service state;
as shown in fig. 3, after initialization at the beginning of the day, both online and batch services use a file group B, and a file group a is used for cleaning backup entries at the beginning of the day;
and step 3: auditing:
in batch at night, audit processing operation is newly added before general account processing, audit processing summarizes the generation amount of entries generated by each account sub-user, the generation amount comprises the entries of T days and online entries of T +1 days, and yesterday balance is calculated according to the current balance, so that direct updating of yesterday balance of each account module when online is stopped during the day-to-day period is avoided, and after the yesterday balance is updated successfully, general account processing is started according to the correct yesterday balance to perform general account checking. The specific process is as follows:
step 31: for different household modules, including deposit, loan, share, internal account, cash and tail box lamps, an entry audit split file is newly built, and the entry record of the day T is split into corresponding module entry split files;
step 32: the method comprises the following steps that balance check is carried out on account numbers of the account business occurring on the same day through an auditing program of each module, and the yesterday balance is updated after the balance check is passed, wherein the method specifically comprises the following steps:
step 32.1: each module initiates the splitting of a first record of a file from the self entry, and sorts the records by mechanisms, account numbers and currency;
step 32.2: according to the organization, the account number and the currency, the file is split from the entry, and the cumulative debit generation amount and the cumulative credit generation amount of the account are counted;
step 32.3: if the balance direction of the account is the debit, comparing whether the current balance-yesterday balance of the account is equal to the cumulative generation amount of the debit-the cumulative generation amount of the credit; if the account is a lender, comparing whether the current balance-yesterday balance of the account is equal to the cumulative generation amount of the lender-the cumulative generation amount of the lender;
step 32.4: if the comparison in step 32.3 is not equal, then according to the account, in the entry file T +1 after 7 × 24 hours, continuously counting the sum of the borrowing and the loan of the account, and according to the above if the balance direction of the account is in the debit: the yesterday balance is the yesterday balance plus the debit accumulated generation amount in the split file-the credit accumulated generation amount in the split file; otherwise, the yesterday balance is the yesterday balance plus the credit accumulated generation amount in the split file-the debit accumulated generation amount in the split file.
The invention solves the defects of multiple times of on-line stop and long off-line stop time in a double-bank table switching and tracking method and a double-balance method, realizes real 7x24 hour uninterrupted service, avoids the condition of large-area transaction failure of each electronic channel during daily cutting, ensures the stability of other transaction channels such as agriculture, telecommunications, second-generation payment, Unionpay and the like, and improves the customer experience and bank competitiveness.
The above description is only an example of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A zero-shutdown daily cutting method based on an AS400 bank core accounting system is characterized by comprising the following steps: the method comprises the following steps:
step 1: designing an AB meter:
the core batch transaction operation and the flow entry log date data file generated by the core online transaction are separately stored in the same library, the file name suffix is distinguished by adding an AB mark, the core online transaction of the previous day uses the A table, the core online transaction of the next day uses the B table, the core online transaction of the next day uses the A table for circulation, and the core batch transaction of the last day uses the A table to process the data of the previous day after the next day; in the core online transaction, OVRDBF + OPNDBF points to an A table or a B table in the main control processing operation, OVRDBF points to the A table or the B table in a core batch transaction starting and calling operation program, the table file definitions in the core batch transaction and the core online transaction are kept unchanged, different files in the same library are used for storage, two sets of core online transaction services are not needed, the number of starting and stopping of the core online transaction is reduced, and data file cleaning backup of night core online transaction data is stored;
step 2: pre-starting core online transaction operation:
after the day switch is started and before the AB mark is changed, the current use of the A table is assumed, the core online transaction processing operation uses the A group processor, the file group A is used, partial processing operation is finished according to the number of idle operation, and the B group processor starts to carry out data preparation and pre-start of the next day, including communication queue emptying, original transaction serial number initialization, counting serial number initialization, local initialization information file initialization and initialization of a network point core online transaction working environment table;
after the AB mark is changed, namely the cutting of the day is completed instantly, the transaction before the cutting of the day is continuously processed and completed by the group A, the transaction after the cutting of the day is accessed to the group B processor for processing by the transaction distributor according to the AB mark, and the group B log pipelining T +1 daily file is used, at this time, the group A log pipelining file is processed by the core batch transaction operation, the core online transaction and the core batch transaction can not generate the condition of conflict lock table, and the 7x24 hour service is supported; during the day-to-day period, the communication server is not restarted, the communication port is always in a working state, and the core online transaction is always in a service state;
after initialization at the beginning of the day, the core online transaction and the core batch transaction service use the file group B, and the backup entry cleaning operation at the beginning of the day uses the file group A;
and step 3: auditing:
in the night core batch transaction, audit processing operation is newly added before general account processing, the audit processing summarizes the generation amount of entries generated by each account sub-user, the generation amount includes the entry of T days and the core online transaction entry of T +1 days, and the yesterday balance is calculated according to the current balance, so that the direct updating of the yesterday balance of each account module when the core online transaction is stopped during the daily cutting period is avoided, and after the yesterday balance is updated successfully, the general account processing is started according to the correct yesterday balance to perform general account checking.
2. The AS400 based zero-downtime daily cutting method for the bank core accounting system AS claimed in claim 1, wherein: the specific process of the step 3 is as follows:
step 31: for different household modules, including deposit, loan, share, internal account, cash and tail box lamps, an entry audit split file is newly built, and the entry record of the day T is split into corresponding module entry split files;
step 32: the method comprises the following steps that balance check is carried out on account numbers of the account business occurring on the same day through an auditing program of each module, and the yesterday balance is updated after the balance check is passed, wherein the method specifically comprises the following steps:
step 32.1: each module initiates the splitting of a first record of a file from the self entry, and sorts the records by mechanisms, account numbers and currency;
step 32.2: according to the organization, the account number and the currency, the file is split from the entry, and the cumulative debit generation amount and the cumulative credit generation amount of the account are counted;
step 32.3: if the balance direction of the account is the debit, comparing whether the current balance-yesterday balance of the account is equal to the cumulative generation amount of the debit-the cumulative generation amount of the credit; if the account is a lender, comparing whether the current balance-yesterday balance of the account is equal to the cumulative generation amount of the lender-the cumulative generation amount of the lender;
step 32.4: if the comparison in step 32.3 is not equal, then according to the account, in the entry file T +1 after 7 × 24 hours, continuously counting the sum of the borrowing and the loan of the account, and according to the above if the balance direction of the account is in the debit: the yesterday balance is the yesterday balance plus the debit accumulated generation amount in the split file-the credit accumulated generation amount in the split file; otherwise, the yesterday balance is the yesterday balance plus the credit accumulated generation amount in the split file-the debit accumulated generation amount in the split file.
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| CN109146653B (en) * | 2018-07-06 | 2022-11-22 | 南京星云数字技术有限公司 | Distributed environment-based accounting daily cutting checking method and device |
| CN110009467A (en) * | 2019-03-05 | 2019-07-12 | 阿里巴巴集团控股有限公司 | The method and device mentioned based on being carried out to finance account |
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| CN110659983A (en) * | 2019-09-29 | 2020-01-07 | 中国工商银行股份有限公司 | Bank accounting data processing method and device, electronic equipment and storage medium |
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| CN111813793A (en) * | 2020-07-08 | 2020-10-23 | 中国建设银行股份有限公司 | Method and device for processing daily handover, computer equipment and storage medium |
| CN111951078B (en) * | 2020-08-14 | 2023-08-25 | 中国工商银行股份有限公司 | Method and device for measuring use right assets |
| CN112988800B (en) * | 2021-03-31 | 2022-09-27 | 建信金融科技有限责任公司 | Data processing method and device based on distributed environment |
| CN112907346A (en) * | 2021-03-31 | 2021-06-04 | 中国工商银行股份有限公司 | Account checking data processing method and device |
| CN113450220A (en) * | 2021-06-30 | 2021-09-28 | 中国建设银行股份有限公司 | Processing method and device based on decentralized batch processing |
| CN113628035A (en) * | 2021-08-15 | 2021-11-09 | 北京乾元大通技术有限公司 | Processing method for twenty-four-hour business process processing system |
| CN115760408A (en) * | 2022-11-22 | 2023-03-07 | 中电金信软件(上海)有限公司 | Transaction data processing method and device and accounting server |
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