CN103426072A - Order processing system of high concurrency competitive inventory and processing method thereof - Google Patents

Abstract

The invention discloses an order processing system of high concurrency competitive inventory and a processing method thereof. The order processing system of the high concurrency competitive inventory comprises a virtual inventory background parameter setting module, a database layer stored procedure function module, an application server cluster, an order queue monitoring and dynamic virtual inventory storehouse classifying module, a virtual inventory background management module and a virtual inventory monitoring module. Whether to deduct the inventory of a reserved warehouse or to deduct the inventory of a virtual warehouse in an order in the order processing transactional queue is determined, if the inventory of the virtual warehouse is enough, the deduction of the inventory of the virtual warehouse is selected, a counter is selected through the virtual warehouse and the virtual warehouse is distributed to every order in a round-robin mode, inventory deduction operation is performed according to the distributed virtual warehouse through the order, after the inventory deduction succeeds, meanwhile, relative data of the order in the order processing transactional queue is deleted, and information about the success creation of the order is returned to a user. According to the order processing system of the high concurrency competitive inventory and the processing method thereof, the number of virtual warehouses and the inventory of every virtual warehouse can be adjusted dynamically, the concurrent order processing capacity is greatly improved under the condition of existing software and hardware resources, and the order processing efficiency of high concurrency competitive inventory is improved.

Description

A kind of high concurrent competition stock's order processing system and disposal route thereof

Technical field

The present invention relates to a kind of order processing system, particularly a kind of high concurrent competition stock's order processing system, also relate to the disposal route of the above order disposal system.

Background technology

Along with the internet develop rapidly, internet becomes important component part in people's life gradually, and variation, shopping online, booking tickets on net, online game, Internet video have also quietly occurred people life style, network social intercourse etc., infiltrate through among daily life.Therefore, the Internet user is rapid growth as index, this brings infinite commercial opportunities to electric business platform operation person, can bring acid test also to network operators simultaneously, process request owing to the high concurrent transaction of rapid growth occurring, it is inadaptable that traditional application architecture starts to become, and many large-scale application even arranged owing to can't supporting high concurrent transaction capabilities, and system is directly collapsed.

The key reason that the problems referred to above occur is bottleneck to have occurred on the response speed of issued transaction, and particularly in high concurrent competition stock's order processing system, this phenomenon is particularly outstanding.When the order of multiple purchase like products is competed stock processing simultaneously, in order to guarantee the consistance of issued transaction, need to be locked stock processing (row lock), make multiple orders can only serial processing, because order processing is serial, when the order of needs competition stock processing is more and more, the waiting list of order processing is just more and more longer, along with the sustainable growth of concurrent quantity on order, the concurrent competition stock's of this height order processing performance bottleneck just reveals gradually.Illustrate, Fig. 1 is existing order processing pattern diagram, suppose when a certain to be carved with the orders that 3 products are detailed identical, the time that system is processed an order is the 10MS(millisecond), in order to ensure the db transaction uniformity for the treatment of, when reducing inventory operations, multiple order competitions must adopt stock's exclusive lock mechanism (row lock), owing to having adopted the operation of stock's exclusive lock, the order issued transaction just can only serial processing, and the time that obviously system is processed 3 orders just equals the 30MS(millisecond).Fig. 2 is general order processing sequential chart, it has shown that the time that affects concurrent establishment order is that T4+T5+T6+T7+T8(is the queue waiting time of single order in indent queue), because the exclusive lock mechanism that the order issued transaction stand-by period processes with the competition inventory transaction is relevant, therefore, if there is a kind of way can reduce lock stock's conflict, we are the processing power of the concurrent establishment order of elevator system significantly just.

At present, for the universal solution of the concurrent competition stock's of height order processing system, be mainly express network+high-performance computer cluster+memory database in the industry.Adopt this scheme, system has remarkable lifting on performance, yet the integrated cost of this scheme is also very high, and may not necessarily guarantee that system not there will be bottleneck, because just there is bottleneck in system hardware performance itself.

Summary of the invention

First purpose of the present invention is to provide the order processing system that a kind of cost is low, can under existing software and hardware resources condition, significantly promote the concurrent competition stock of height of high concurrent order competition stock processing efficiency.

Above-mentioned purpose of the present invention realizes by following technical measures: a kind of high concurrent competition stock's order processing system, it is characterized in that comprising that virtual inventory backstage parameter arranges module, database layer storing process functional module, application server cluster, indent queue monitoring and dynamic virtual stock minute storehouse module, virtual inventory Back Administration Module and virtual inventory monitoring module, wherein

Described virtual inventory backstage parameter arranges module for the correlation parameter of virtual inventory is set;

Described database layer storing process functional module is used for realizing comprising virtual inventory initialization, virtual inventory minute storehouse, regularly routine inspection of virtual inventory, virtual inventory is dynamically alloted and the storing process reclaimed;

The order request that described application server cluster creates for receiving the user, then carry out pre-service and order added to the order processing transaction queues order;

Described indent queue monitoring and dynamic virtual stock minute storehouse module are for monitoring the Inventory Performance in the current disposition of each order processing transaction queues and current virtual storehouse;

Described virtual inventory Back Administration Module is for realizing the virtual inventory back-stage management, comprises that virtual inventory initialization, special outbound warehouse-in are processed, virtual inventory replenishes processings, virtual inventory recycles, virtual inventory routine inspection and virtual inventory minute storehouse planning management etc.;

The virtual inventory success ratio is reduced in Inventory Performance, the order processing that described virtual inventory monitoring module is used for monitoring the current disposition of each order processing transaction queues, inquire about each virtual storehouse of current system, virtual inventory is alloted and the frequent degree reclaimed and abnormal log inquiry and analysis etc.;

With the interaction of upper module with coordinate, formed a kind of high concurrent competition stock's order processing system, that is: virtual inventory system, enable the operating process of virtual inventory scheme and order dealing process as follows:

Virtual inventory backstage parameter arranges module the virtual inventory correlation parameter is set, and the virtual inventory Back Administration Module carries out initialization to virtual inventory, completes virtual inventory minute storehouse and virtual storehouse, distribution is deposited in reserved warehouse, after load equalizer in application server cluster receives the user and creates order request, order request is forwarded to certain application server, after application server cluster receives and creates order request, order is carried out to pre-service, such as sales promotion calculate, to order detail sorted (purpose of the detailed sequence of order is to solve the locking order and occurs Deadlock when capable) etc., this order is added to the order processing transaction queues, if indent queue monitoring and dynamic virtual stock minute storehouse module judge and need to be adjusted the quantity in virtual storehouse according to monitored results, the adjustment of the associated storage process implementation of calling data storehouse layer storing process functional module to virtual storehouse quantity, if virtual storehouse does not need to adjust, continue the order in indent queue is carried out to the order issued transaction, the order processing affairs are according to whether containing product in short supply in the order detail and whether currently used system has enabled the virtual inventory scheme, determine that current order processing reduces warehouse, reserved storehouse and deposit or reduce virtual varehouse and deposit, if virtual varehouse is deposited enough, selection is reduced virtual varehouse and is deposited, take the repeating query mode by the virtual storehouse of application layer gated counter and distribute virtual storehouse as each order, the order issued transaction is carried out the stock according to the virtual storehouse of distributing and is reduced operation, after reducing stock's success, delete the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, if virtual varehouse is deposited not, select to reduce reserved warehouse and deposit, if reserved stock is enough, after reducing stock's success, delete the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, if reserved stock is inadequate, this order creation is unsuccessful, and returns to shortage of stock information to the user, deletes the related data of this order in the order processing transaction queues simultaneously.

The present invention is divided into a reserved storehouse and a plurality of virtual storehouse by a freight house inventory data according to the inventory allocation strategy, realize that a plurality of order transaction concurrencies reduce the stock, the concurrent order processing ability of elevator system significantly under existing software and hardware resources condition, solve the problem of high concurrent order competition stock processing bottleneck, significantly promoted the efficiency of high concurrent order stock processing; And, of the present inventionly realize that cost is lower.

Relative parameters setting, the task scheduling that virtual inventory of the present invention backstage parameter arranges relative parameters setting that the set correlation parameter of module is safety inventory setting, virtual inventory minute storehouse strategy, virtual inventory operating strategy stop using with enable, scheduling time is spaced etc.After virtual inventory backstage parameter sets, virtual inventory system just can be intended to manage and control virtual inventory system according to the supvr.

Database layer storing process functional module of the present invention comprise virtual inventory initialization module, virtual inventory minute storehouse module, virtual inventory regularly routine inspection module and virtual inventory dynamically allot and recycling module, wherein,

When described virtual inventory initialization module is enabled for system, carry out in advance virtual inventory minute storehouse operation;

Described virtual inventory minute storehouse module is divided storehouse for dynamic virtual stock minute storehouse and manual virtual inventory, virtual inventory minute storehouse realizes an original freight house (RDC) is split into to a reserved storehouse and several virtual storehouse, again by virtual inventory system according to the actual store data of backstage parameter and original freight house (RDC) according to the inventory allocation strategy, by the inventory allocation of original freight house (RDC) to reserved storehouse and virtual storehouse;

The distribution principle of stock of the present invention (also referred to as virtual inventory) allocation strategy is: first original freight house inventory data is divided into to two parts (concrete ratio can freely arrange according to service needed) according to a certain percentage, first part of stock's number distributed to reserved stock, and second part of inventory data is averagely allocated to each virtual library storage.

Described virtual inventory regularly routine inspection module is used for the regularly state of each module of routine inspection virtual inventory system, make virtual inventory system realize dynamically adjusting to self each module according to the variation of various states, thereby guarantee that each module of virtual inventory system remains optimal operational condition;

Described virtual inventory is dynamically alloted with recycling module and is comprised that virtual inventory dynamically allots module and the dynamic recycling module of virtual inventory,

Virtual inventory is dynamically alloted module and is alloted rule according to virtual inventory, check that each virtual varehouse deposits, adjust requirement if meet, the system Auto-writing is alloted request slip, then virtual varehouse is deposited into to row and redistribute, is singly adjusting when processing according to the virtual inventory adjustment: first inventory data is adjusted and reduced to processing, reduce after finishing dealing with and again inventory data is adjusted and increased processing, guarantee to reduce processing and tune and increase processing not in same affairs, to avoid the issued transaction conflict;

The dynamic recycling module of virtual inventory reclaims rule according to virtual inventory, checks each virtual inventory, if meet, merges requirement, and the system Auto-writing merges request slip, then carries out the virtual inventory reclaimer operation, and virtual varehouse is deposited and merged to virtual reserved storehouse.

A dynamic virtual stock of the present invention minute storehouse refers to without manual intervention, length by system by each application server order processing transaction queues of monitoring application layer, judged that in conjunction with the backstage configuration parameter current system is in peak traffic phase or low peak period, then automatically produce a virtual inventory minute storehouse tune and increase or adjust and reduce plan, and carry out this plan.

A manual virtual inventory of the present invention minute storehouse refers to by manual intervention virtual inventory minute storehouse, the decision maker is according to service development strategy and the related data of company, as: company's sales forecast data, there is promotion plan in company certain period, perhaps new product release, judge whether this time period exist the order peak period, works out in advance virtual inventory minute storehouse plan, and automatically implement this plan by system before this order peak period, to guarantee that system is steady, fast processing order business.

Virtual inventory Back Administration Module of the present invention comprises that virtual inventory allots with retrieval management module, virtual inventory minute storehouse planning management module, specially goes out to put in storage processing module and virtual inventory initialization module, wherein,

Described virtual inventory is alloted with the retrieval management module for the single inquiry of requisition slip/reclaim, establishment, modification, deletion and is carried out stock allotment/reclaimer operation etc.;

Described virtual inventory minute storehouse planning management module mainly comprises the operations such as inquiry, establishment, modification, deletion and minute storehouse plan of execution virtual inventory of virtual inventory minute storehouse plan for virtual inventory minute storehouse planning management;

Describedly specially go out to put in storage processing module and reduce stock's processing in non-order processing mode, refer to that dump warehouse-in and outbound, special stock move, product rejection, the processing such as deliver from godown especially;

Described virtual inventory initialization module is realized the actual store data of RDC according to the inventory allocation strategy, by the extremely reserved storehouse of RDC inventory allocation and virtual storehouse.

Second purpose of the present invention is to provide the disposal route of the concurrent competition stock's of a kind of above-mentioned height order processing system.

Above-mentioned purpose of the present invention realizes by following technical measures: the disposal route of the concurrent competition stock's of a kind of above-mentioned height order processing system is characterized in that comprising the following steps:

(1) user initiates to create order request;

(2) order request that application server cluster creates the user by load equalizer is forwarded to certain application server in application server cluster, realizes the load balancing of the concurrent order processing of application server floor height; Application server carries out pre-service and this order is added to the order processing transaction queues order after receiving and creating order request;

(3) indent queue monitoring and a dynamic virtual stock minute storehouse module judge whether contain product in short supply in this order detail and whether currently used system has enabled the virtual inventory scheme, determine that current order processing reduces warehouse, reserved storehouse and deposit or reduce virtual varehouse and deposit

If i. in this order detail, contain product in short supply or do not enable the virtual inventory scheme, reduce reserved warehouse and deposit, proceed to step (4);

If ii. in this order detail, do not contain product in short supply and enabled the virtual inventory scheme, reduce virtual varehouse and deposit, proceed to step (5);

(4) meet and reduce reserved stock's condition, reduce reserved warehouse and deposit; It is capable that reserved inventory record is inquired about and locked to the processing transactions of order at first, and reserved stock storehouse data are carried out to the availability inspection;

If the reserved warehouse of I is deposited enough, reduce reserved warehouse and deposit, after reducing stock's success, delete the related data of this order in the order processing waiting list simultaneously, then this order creation successful information is returned to the user, proceed to step (6);

If reserved stock is inadequate for II, this order creation is unsuccessful, and returns to shortage of stock information to the user, deletes the related data of this order in the order processing waiting list simultaneously, proceeds to step (6);

(5) meet and to reduce virtual varehouse and deposit condition, reduce virtual varehouse and deposit; The order processing program reads the repeating query of application server record and reduces virtual storehouse counter, handling procedure is selected corresponding virtual storehouse according to register, then at first the processing transactions of this order is inquired about and is locked this virtual varehouse and deposit the record row, and these virtual storehouse data are carried out to the availability inspection;

If i. virtual varehouse is deposited enough, order carries out the stock according to the virtual storehouse of distributing and reduces operation, after reducing stock's success, deletes the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, proceed to step (6);

If ii. virtual varehouse is deposited not, select to reduce reserved warehouse and deposit, proceed to step (4);

(6) complete whole order processing flow process.

Compared with prior art, the present invention has following significant effect:

The present invention is divided into a reserved storehouse and a plurality of virtual storehouse by a freight house inventory data according to the inventory allocation strategy, with existing order processing system, compare, reduced lock stock conflict, realize that a plurality of order transaction concurrencies reduce the stock, significantly promoted the concurrent order processing ability of system under existing software and hardware resources condition, solve the problem of high concurrent order competition stock processing bottleneck, significantly promoted the efficiency of high concurrent order stock processing; The present invention realizes that cost is lower, can be widely used in the fields such as electronic commercial affairs and railway, airline reservation system.

The accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

Fig. 1 is existing order processing scene schematic diagram;

Fig. 2 is existing order processing sequence schematic diagram;

Fig. 3 is that system of the present invention forms schematic diagram;

Fig. 4 is virtual inventory freight house structural drawing of the present invention;

Fig. 5 is order processing scene schematic diagram of the present invention;

Fig. 6 is virtual inventory of the present invention minute storehouse process flow diagram;

Fig. 7 is that virtual inventory of the present invention is dynamically alloted and recovery process figure;

Fig. 8 is order processing process flow diagram of the present invention.

Embodiment

One, the overall implementation of virtual inventory

Based on the J2EE framework, exploitation realizes a kind of high concurrent competition stock order processing system of the present invention, database adopts the ORACLE11G based on the RAC cluster, as shown in Figure 3, comprise that virtual inventory backstage parameter arranges module, database layer storing process functional module, application server cluster, indent queue monitoring and dynamic virtual stock minute storehouse module, virtual inventory Back Administration Module and virtual inventory monitoring module six functions module, wherein

Virtual inventory backstage parameter arranges module 300, for the correlation parameter of virtual inventory is set;

Database layer storing process functional module 301, realize the storing process entity that the virtual inventory relevant issues are processed, mainly comprised virtual inventory initialization, virtual inventory minute storehouse, regularly routine inspection of virtual inventory, virtual inventory dynamically allots with the storing process entity such as reclaim;

Application server cluster 302, the order request created for receiving the user, then carry out pre-service and order added to the order processing transaction queues order;

Indent queue monitoring and dynamic virtual stock sub-module 303, for monitoring the Inventory Performance in the current disposition of each order processing transaction queues and current virtual storehouse;

Virtual inventory Back Administration Module 304: for realizing the virtual inventory back-stage management, comprise the virtual inventory initialization, specially go out warehouse-in and process, the virtual inventory processing that replenishes, the virtual inventory recycling, virtual inventory routine inspection and virtual inventory divide storehouse planning management etc.;

Virtual inventory monitoring module 305: for Inventory Performance, the order processing of monitoring the current disposition of the pending order processing queue of each application server instance, inquiry each virtual storehouse of current system reduce the virtual inventory success ratio, virtual inventory is alloted and the inquiry of the frequent degree reclaimed and abnormal log with analyze etc.;

The interaction of above six large modules with coordinate, formed a kind of high concurrent competition stock's order processing system, that is: virtual inventory system.Below to enable the operating process of virtual inventory scheme and order dealing process:

Enable the operating process of virtual inventory scheme and comprise following two steps:

(1) by virtual inventory system module 300, the virtual inventory correlation parameter is set, as the setting of safety inventory parameter, virtual inventory minute storehouse policing parameter setting, task scheduling parameter arrange etc.;

(2) carry out initialization by 304 pairs of virtual inventories of virtual inventory Back Administration Module, complete virtual inventory minute storehouse and virtual storehouse, the operations such as distribution are deposited in reserved warehouse;

After enabling the virtual inventory scheme, the order processing flow process is as follows:

After F5 load equalizer in application server cluster module 302 receives the user and creates order request, order request is forwarded to certain application server, after application server cluster receives and creates order request, order is carried out to pre-service, such as sales promotion calculate, to order detail sorted (purpose of the detailed sequence of order is to solve the locking order and occurs Deadlock when capable) etc., this order is added to the order processing transaction queues, if indent queue monitoring and dynamic virtual stock sub-module 303 judge and need to be adjusted the quantity in virtual storehouse according to monitored results, the adjustment of the associated storage process implementation of calling data storehouse layer storing process functional module 301 to virtual storehouse quantity, if virtual storehouse does not need to adjust, continue the order in indent queue is carried out to the order issued transaction, the order processing affairs are according to whether containing product in short supply in the order detail and whether currently used system has enabled the virtual inventory scheme, determine that current order processing reduces warehouse, reserved storehouse and deposit or reduce virtual varehouse and deposit, if virtual varehouse is deposited enough, selection is reduced virtual varehouse and is deposited, take the repeating query mode by the virtual storehouse of application layer gated counter and distribute virtual storehouse as each order, the order issued transaction is carried out the stock according to the virtual storehouse of distributing and is reduced operation, after reducing stock's success, delete the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, if virtual varehouse is deposited not, select to reduce reserved warehouse and deposit, if reserved stock is enough, after reducing stock's success, delete the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, if reserved stock is inadequate, this order creation is unsuccessful, and returns to shortage of stock information to the user, deletes the related data of this order in the order processing transaction queues simultaneously.

Two, each module concrete function and implementation

1, virtual inventory backstage parameter arranges module

This module is mainly used in arranging the correlation parameter of virtual support stock solution, and parameter arranges mainly and comprises: the relative parameters setting of safety inventory setting, virtual inventory minute storehouse strategy, the relative parameters setting of virtual inventory operating strategy, task scheduling stop using with enable and scheduling time spaced etc.After the virtual inventory backstage sets, virtual inventory system just can be intended to manage and controlled virtual inventory system according to the supvr.

2, database layer storing process functional module

This module has realized the processing of virtual inventory relevant issues, mainly comprises regularly routine inspection of virtual inventory initialization, virtual inventory minute storehouse, virtual inventory, virtual inventory is dynamically alloted with reclaim the supervisor module.

2.1, the virtual inventory initialization: this function while enabling the virtual inventory solution, is carried out virtual inventory minute storehouse operation for system in advance.

2.2, virtual inventory minute storehouse: virtual inventory minute storehouse realizes original freight house (RDC) is split into to a reserved storehouse and a plurality of virtual storehouse (the freight house structure is as Fig. 4), again by virtual inventory system according to the actual store data of backstage parameter and RDC according to the virtual inventory allocation strategy, by the extremely reserved storehouse of RDC inventory allocation and virtual storehouse, regularly routine inspection of virtual inventory: this program block function is reserved storehouse for S0, mainly for the treatment of emergency event, such as virtual varehouse is deposited inadequate or large order (referring to the order that size of order is very large); S1, S2 ... SN is virtual storehouse, is mainly used in high concurrent order competition stock processing affairs.

As shown in Figure 6, a virtual inventory minute storehouse is divided into dynamic virtual stock minute storehouse and manual virtual inventory minute storehouse to virtual minute storehouse flow process;

2.2.1, the dynamic virtual stock divides storehouse

The dynamic virtual stock divides the operation of Zhi Fen storehouse, storehouse without manual intervention, length by system by each application server order processing transaction queues of monitoring application layer, judged that in conjunction with the backstage configuration parameter current system is in peak traffic phase or low peak period, then automatically produce a virtual inventory minute storehouse tune and increase or adjust and reduce plan, and carry out immediately this plan.

The implementation in dynamic virtual stock minute storehouse is satisfying condition by timed task routine inspection dynamic virtual stock minute storehouse, if any meeting the condition that increases the virtual library storage or reduce the virtual library storage, virtual inventory system is carried out the operation that increases the virtual library storage or reduce the virtual library storage immediately.

The specific implementation step is as follows:

(1) timed task response, start virtual inventory and divide storehouse to adjust check routine;

(2) the order processing waiting list of each apps server of real-time collecting is counted;

(3) add up each application server order processing waiting list counting;

(4) carry out dynamic virtual stock minute storehouse strategy realization inspection virtual library storage and reserved stock warehouse water flat, then, according to current reserved storehouse and the inventory level in virtual storehouse, mated with the virtual inventory minute storehouse condition that backstage arranges;

If I meets the condition that increases the virtual library storage, generate the increase virtual inventory and divide the storehouse plan for adjustment, carry out and increase virtual inventory minute storehouse plan for adjustment and the virtual inventory system parameter is set simultaneously, notify each application server virtual inventory system parameter to change, complete virtual inventory minute storehouse adjusting operation.

If II meets the condition that reduces the virtual library storage, generate minimizing plan stock and divide the storehouse plan for adjustment, carry out and reduce virtual inventory minute storehouse plan for adjustment and the virtual inventory system parameter is set simultaneously, notify each application server virtual inventory system parameter to change, complete virtual inventory minute storehouse adjusting operation.

If III does not meet virtual inventory minute storehouse condition, virtual inventory system is waited for the response of next timed task.

2.2.2, manually virtual inventory divides storehouse

Manually a virtual inventory minute storehouse refers to by manual intervention virtual inventory minute storehouse, the service development strategy of decision maker company and related data, as: company's sales forecast data, there is promotion plan in company certain period, perhaps new product release, judge whether this time period exist the order peak period, works out in advance virtual inventory minute storehouse plan, and automatically implement this plan by system before this order peak period, to guarantee that system is steady, fast processing order business.Manually virtual inventory divides the concrete steps in storehouse as follows:

(1) the relevant information that reference is correlated with and is sold predicted data and may divide storehouse to adjust, as: company's sales forecast data, there is promotion plan in company certain period, or new product release etc.;

(2) manual creation, modification or cancellation virtual inventory divide the storehouse plan for adjustment, and set the execution time of this plan;

(3) whether the timed task routine inspection has needs the virtual inventory minute storehouse plan for adjustment of carrying out;

(4) if current the virtual inventory minute storehouse plan for adjustment of need carrying out arranged, system is carried out this virtual inventory minute storehouse plan for adjustment immediately;

(5) the virtual inventory system parameter is set;

(6) notify each application server virtual inventory system parameter to change, complete virtual inventory minute storehouse adjusting operation.

2.3, virtual inventory routine inspection module regularly: for the state of each module of timing routine inspection virtual inventory system, make virtual inventory system realize dynamically adjusting to self each module according to the variation of various states, thereby guarantee that each module of virtual inventory system remains optimal operational condition.

2.4, virtual inventory is dynamically alloted and reclaim:

2.4.1, virtual inventory dynamically allots:

It is to allot rule according to virtual inventory that virtual inventory is dynamically alloted, check that each virtual varehouse deposits, adjust requirement if meet, the system Auto-writing is alloted request slip, then virtual varehouse being deposited into to row redistributes, according to the virtual inventory adjustment, singly adjusting while processing: system a kind of adjustments tactful, first inventory data is adjusted and reduced to processing, reduce after finishing dealing with and again inventory data is adjusted and increased processing, guarantee to reduce processing and tune and increase processing not in same affairs, to avoid the issued transaction conflict.

2.4.2, virtual inventory dynamically reclaims:

It is to reclaim rule according to virtual inventory that virtual inventory dynamically reclaims, and checks each virtual inventory, if meet, merges requirement, and the system Auto-writing merges request slip, then carries out the virtual inventory reclaimer operation, and virtual varehouse is deposited and merged to virtual reserved storehouse.

Virtual inventory dynamically allot with recovery process as shown in Figure 7, the specific implementation step is as follows:

(1) every 5 minutes reserved storehouses to virtual inventory, virtual inventory system backstage and the inventory level in virtual storehouse are checked;

(2) if meet the virtual inventory recovering condition, system is carried out the virtual inventory recycling, when being recycled, in order to guarantee that the system data processing has trackability, system is that this recycling creates the merging request slip automatically, and then will need the inventory data that merges the virtual storehouse of processing to be incorporated into reserved storehouse, delete this virtual storehouse simultaneously;

(3) if meet the virtual inventory condition that replenishes, system is carried out the virtual inventory processing that replenishes, and is being replenished while processing, and in order to guarantee system data, processes trackability is arranged, system is alloted request slip for replenish processing establishment of this time automatically, and then carries out the virtual inventory processing that replenishes;

(4) if meeting the virtual library storage transfers to reserved stock warehouse condition, system is carried out virtual inventory and is transferred to reserved stock processing, carrying out virtual inventory while transferring to reserved stock processing, in order to guarantee that the system data processing has trackability, system is automatically alloted to process to create for this time and is alloted request slip, and then carries out virtual inventory and transfer to reserved stock processing;

(5) if meeting reserved stock storehouse transfers to virtual library storage condition, system is carried out reserved stock storehouse and is transferred to the virtual library storage and process, transfer while processing to the virtual library storage reserving the stock storehouse, in order to guarantee that the system data processing has trackability, system is automatically alloted processing establishment for this time and is alloted request slip, and then reserves the stock storehouse and transfer to the virtual library storage and process.

3, application server cluster

The major function of application server cluster is: load equalizer forwards to every application server in application server cluster the order request that the user creates, to realize the load balancing of application-server layer large-scale concurrent order processing.Application server cluster carries out pre-service and order is added to the order processing transaction queues order after receiving the order request of user's establishment, a corresponding virtual storehouse gated counter of order processing transaction queues; In the present embodiment, apps server adopts the JBOSS4.3 enterprise version, and server OS adopts REDHAT LINUX5.6 enterprise version.

4, indent queue monitoring and dynamic virtual stock divide the storehouse module

The indent queue monitoring module is for monitoring the processing procedure of each order, and concrete real step is as follows:

In the order processing application server cluster, we have many application server instance for order processing, in each application example, an order processing transaction queues and a virtual storehouse gated counter have been designed, when the user initiates to create order request, F5 is forwarded to certain application server instance by this request, after application server instance receives and creates order request, first order is carried out pre-service and this order is added to the order processing queue, then judge that this order buckles reserved warehouse and deposit or buckle virtual varehouse and deposit, if the button virtual varehouse is deposited, because there are a plurality of virtual storehouses in each freight house, we need to take the mode of repeating query by virtual storehouse gated counter and distribute virtual storehouse as each order, order carries out the stock according to the virtual storehouse of distributing and reduces operation, after reducing stock's success, delete the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, if virtual varehouse is deposited when inadequate, then select reserved storehouse to reduce the stock, if reserved stock is inadequate, this order creation is unsuccessful, and return to the information such as the shortage of stock to the user, and delete the related data of this order in the order processing transaction queues simultaneously, complete whole order processing flow process.

As shown in Figure 8, execution step is as follows in detail for the order processing flow process:

(1) user initiates to create order request;

(2) application server cluster is by the F5(load equalizer) order request of user's establishment is forwarded to certain application server in application server cluster, realize the load balancing of the concurrent order processing of application server floor height; Application server carries out pre-service and this order is added to the order processing transaction queues order after receiving and creating order request;

(3) the indent queue monitoring module judges whether contain product in short supply in this order detail and whether currently used system has enabled the virtual inventory scheme, determines that current order processing reduces warehouse, reserved storehouse and deposit or reduce virtual varehouse and deposit.

If i. in this order detail, contain product in short supply or do not enable the virtual inventory scheme, reduce reserved warehouse and deposit, proceed to step (4);

If ii. in this order detail, do not contain product in short supply and enabled the virtual inventory scheme, reduce virtual varehouse and deposit, proceed to step (5);

(4) meet and reduce reserved stock's condition, reduce reserved warehouse and deposit;

Reduce the method for operating of depositing in reserved warehouse as follows:

It is capable that reserved inventory record is inquired about and locked to the processing transactions of order at first, and reserved stock storehouse data are carried out to the availability inspection; If reserved warehouse is deposited enough, reduce reserved warehouse and deposit, after reducing stock's success, delete the related data of this order in the order processing waiting list simultaneously, then this order creation successful information is returned to the user, proceed to step (6).If reserved stock is inadequate, this order creation is unsuccessful, and returns to shortage of stock information to the user, deletes the related data of this order in the order processing waiting list simultaneously, proceeds to step (6).(5) meet and to reduce virtual varehouse and deposit condition, reduce virtual varehouse and deposit;

Reduce the method for operating that virtual varehouse deposits as follows:

The order processing program reads the repeating query of application server record and reduces virtual storehouse counter, handling procedure is selected corresponding virtual storehouse according to register, then at first the processing transactions of this order is inquired about and is locked this virtual varehouse and deposit the record row, and these virtual storehouse data are carried out to the availability inspection;

If i. virtual varehouse is deposited enough, order carries out the stock according to the virtual storehouse of distributing and reduces operation, after reducing stock's success, deletes the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, proceed to step (6);

If ii. virtual varehouse is deposited not, select to reduce reserved warehouse and deposit, proceed to step (4);

(6) complete whole order processing flow process.

5, virtual inventory Back Administration Module

The virtual inventory Back Administration Module mainly comprises following function.

5.1, virtual inventory is alloted and retrieval management

Virtual inventory is alloted with retrieval management and is mainly comprised: requisition slip/reclaim single inquiry, establishment, modification, deletion and carry out stock allotment/reclaimer operation etc.

5.2, virtual inventory divides the storehouse planning management

Virtual inventory minute storehouse planning management mainly comprises the operations such as inquiry, establishment, modification, deletion and minute storehouse plan of execution virtual inventory of virtual inventory minute storehouse plan.

5.3, specially go out warehouse-in and process

Specially go out warehouse-in and process the processing that the main non-order processing mode of finger is reduced the stock, this function is mainly used in as dump warehouse-in and outbound, and special stock moves, product rejection, the processing such as deliver from godown especially.

5.4, the virtual inventory initialization

The virtual inventory initialization: realization according to the virtual inventory allocation strategy, reassigns to reserved storehouse and virtual storehouse to the actual store data of RDC by the RDC stock.

6, virtual inventory monitoring module

The virtual inventory monitoring module is for monitoring the content of the following aspects:

6.1, monitor the current disposition of the pending order processing queue of each application server instance;

6.2, the inquiry each virtual storehouse of current system Inventory Performance;

6.3, order processing reduces the virtual inventory success ratio;

6.4, virtual inventory is alloted and the frequent degree reclaimed;

6.5, abnormal log inquiry with analyze;

Three, virtual inventory distributes and operating strategy

Virtual inventory distribution and operating strategy are as follows

1, various parametric descriptions

Mean average inventory every day;

S _RDC: mean current freight house stock total quantity;

RDC: mean a certain freight house;

Be expressed as the number of days sold of average inventory every day.Be generally now 22 days.

T _Q: mean virtual inventory one-level safety line Q ₁But the number of days of supports sales.Generally be made as now 2 days.

λ _R(λ _R>1): while being expressed as the every day initialization, the ratio in virtual reservation stock and single virtual stock storehouse.Common λ _RCan be set to 1.5.

λ _Q: mean virtual inventory one-level safety line Q ₁With average inventory every day The ratio.

Be generally 10%.

N: mean virtual inventory reservoir area quantity.

R%: mean that the virtual inventory library initialization accounts for routine R%:R% and n, λ _RRelevant, must meet

$R\%<\frac{n}{{\mathrm{\&lambda;}}_R+n}\&CenterDot;100\%.$

Q ₁: mean virtual inventory one-level safety line, can be understood as minimum warning line.

Work as T _Q, mean to using that the daily sales of 2 days is as the minimum safe line at=2 o'clock.

Q ₂: mean virtual inventory secondary safety line.

Work as T _Q, mean that the maintenance daily sales of 4 days is as virtual inventory secondary safety line at=2 o'clock.

2, virtual inventory divides the setting of storehouse quantity n

According to inventory level and the business development planning of freight house, the setting of virtual inventory minute storehouse quantity n is done to following derivation: if increase constraint condition, when actual store is average inventory, each virtual inventory all meets the requirement of virtual inventory one-level safety line.

Work as $S_{\mathrm{RDC}}=\stackrel{\&OverBar;}{S}$ The time, ${\mathrm{<figure-callout\; id="1"\; label="Q"\; filenames="HDA00003520758100032.png"\; state="\{\{state\}\}">Q</figure-callout>}}_1<S_i=\frac{R\%}{n}\&CenterDot;\stackrel{\&OverBar;}{S},$ So $R\%>\frac{T_Q}{\stackrel{\&OverBar;}{T}}\&CenterDot;n$

$\left\{\begin{array}{c}R\%>\frac{T_Q}{\stackrel{\&OverBar;}{T}}\&CenterDot;n\\ R\%<\frac{n}{{\mathrm{\&lambda;}}_R+n}\&CenterDot;100\%\end{array}\right.$

Obtain:

$n<\frac{\stackrel{\&OverBar;}{T}}{T_Q}-{\mathrm{\&lambda;}}_R$

According to actual conditions, the n maximal value is 8.

Generally, the span of n is 0,2,3,4,5,6,7,8.

When n=0, mean regardless of virtual inventory.

3, reserved storehouse and virtual varehouse are deposited allocation strategy

Being re-assigned to n+1(n>=0 according to the actual store of RDC) in individual virtual inventory, the setting of n+1 virtual library is followed successively by S ₀, S ₁, S ₂S _n.S ₀For virtual reserved stock, for the treatment of emergency event, S ₁, S ₂S _nFor virtual service is processed the stock.

The inventory allocation principle is as follows:

A) all actual store S current RDC _RDCAllocated;

B) virtual reserved stock S ₀Summation with virtual service processing stock Distributed by a certain percentage, be distributed equally in virtual service is processed the stock.

If R%(0<R<100 i.) be the accounting of virtual inventory, allocation proportion is:

$\frac{S_0}{\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}{S}_i}=\frac{100\%-R\%}{R\%}.$

Ii. owing to being divided equally in virtual service processing stock,

(n>=1)

During iii. due to initialization, virtual reserved stock S ₀Can not be less than S _iIf the ratio that virtual reserved stock and arbitrary virtual service are processed the stock is λ _R, can be expressed as:

S ₀>λ _RS _i(λ wherein _R>1)

Can obtain thus: $R\%<\frac{n}{{\mathrm{\&lambda;}}_R+n}\&CenterDot;100\%$

C) reclaim rule according to virtual inventory and checked, if meet, merge rule, virtual service is processed to the stock and merge to virtual reserved stock.

Even S _i=0(n>=1), S ₀=S _RDC.

4, the dynamic allocation processing of virtual inventory

All virtual inventory adjustment (every day initialization process except), all carry out according to [the virtual inventory adjustment is single].[the virtual inventory adjustment is single] is similar to the stock allotment list of RDC.

The strategy that the stock adjusts: (carrying out in order)

1) virtual inventory reclaims rule:

If a) the virtual reserved stock S of a certain product ₀Be less than virtual library one-level safety line Q ₁, i.e. S ₀<Q ₁, all virtual inventories of this product are incorporated to S ₀.// merge and reclaim.

B) if current each virtual service of a certain product is processed the stock (not containing S ₀) summation be less than virtual inventory one-level safety line Q ₁,

All virtual inventories of this product are incorporated to S ₀.// merge and reclaim.

2) virtual inventory is alloted rule:

If a) current each virtual inventory of a certain product is not (containing S ₀) summation be less than virtual inventory secondary safety line Q ₂, and S ₀Currency be greater than 3 times of virtual inventory secondary safety line Q ₂, to each virtual inventory replenish to $1.5\&times;\frac{Q_2}{n},$ Work as $\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}{S}_i<{\mathrm{<figure-callout\; id="2"\; label="Q"\; filenames="HDA00003520758100011.png,HDA00003520758100032.png"\; state="\{\{state\}\}">Q</figure-callout>}}_2$ And S ₀>3Q ₂If, $(\frac{Q_2}{n}\&times;1.5-S_i)>0,$ By S ₀To S _iReplenish $(\frac{Q_2}{n}\&times;1.5-S_i).$ // replenish.

B) if current each virtual inventory of a certain product (does not contain S ₀) summation be greater than virtual inventory secondary safety line Q ₂, and the ratio of maximum stock's number and minimum inventories number (does not contain S over a certain warning value to current each virtual inventory ₀) divided equally allotment, allot principle as follows: // inernal transference.

If i.

S ₀From virtual reservoir area S _iReclaim resource, allot yield and be

If ii.

S ₀To virtual reservoir area S _iResources allocation, allot sendout and be

Usually, virtual inventory one-level safety line Q ₁Relevant to average inventory every day.If

For per day stock,

For per day stock's the number of days sold, the sold stock of every day is

Can establish thus

T _QFor working as the stock, be Q ₁But the time supports sales number of days, λ _QFor virtual inventory one-level safety line Q ₁Accounting with average inventory every day.

Usually, virtual inventory secondary safety line Q ₂With virtual inventory one-level safety line Q ₁For fixed proportion, this fixed proportion can be made as 2, ${\mathrm{<figure-callout\; id="2"\; label="Q"\; filenames="HDA00003520758100011.png,HDA00003520758100032.png"\; state="\{\{state\}\}">Q</figure-callout>}}_2=2\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="Q"\; filenames="HDA00003520758100032.png"\; state="\{\{state\}\}">Q</figure-callout>}}_1=2\&CenterDot;\frac{T_Q}{\stackrel{\&OverBar;}{T}}\&CenterDot;\stackrel{\&OverBar;}{S}.$

5, the relevant limit that virtual inventory is processed

When single stock is less than 50, do not need a minute virtual storehouse; After if virtual inventory is 0, before tying in day, carry out never again Replenishment Policy; (if starting except the special flow process that replenishes).

Four, virtual inventory configuration parameter

VRDC0 is virtual reserved storehouse; VRDC1 ... VRDCn is each virtual storehouse.

Five, whole implementation effect and traditional order processing system are relatively

1, traditional order processing system order processing scene

Fig. 1 is general order processing scene, supposes when a certain to be carved with the orders that 3 products are detailed identical, and the time that system is processed an order is the 10MS(millisecond); In order to ensure the db transaction uniformity for the treatment of, when reducing inventory operations, multiple order competitions must adopt stock's exclusive lock mechanism (row lock), owing to having adopted the operation of stock's exclusive lock, the order issued transaction just can only serial processing, and the time that obviously system is processed 3 orders just equals the 30MS(millisecond).

2, the order processing scene of virtual inventory system

After adopting virtual inventory solution of the present invention, the whole implementation effect is compared as shown in Figure 5 with traditional order processing system, same hypothesis is carved with the order that 3 products are detailed identical when a certain, and the time that form ordering system of the present invention is processed an order is the 10MS(millisecond); System is that the stock is reduced in the virtual storehouse of the random appointment of every order, has realized the ability of parallel processing order.Therefore, although process the time of 3 orders and be greater than the 10MS(millisecond), approach the 10MS(millisecond); Therefore process under the same conditions the speed 30MS(millisecond of order with traditional order processing system (see figure 1)) to compare, native system order processing speed promotes 2 to 3 times.The virtual storehouse of database layer is got manyly in theory, and the efficiency that system is processed order is just higher, but system specifically minute how many virtual storehouses are proper, need to comprehensively weigh according to the plan of operation of application system and current inventory level.

This order processing system is verified in the stable operation of the world business back-up system without thresold (China) company limited, can significantly promote the efficiency of high concurrent order competition stock processing, solve the performance bottleneck of high concurrent order competition stock processing.

Embodiments of the present invention are not limited to this, and according to foregoing of the present invention, according to ordinary skill knowledge and the customary means of this area, the present invention can also make modification, replacement or the change of other various ways, within all dropping on rights protection scope of the present invention.

Claims (10)

1. a high concurrent competition stock order processing system, it is characterized in that: comprise that virtual inventory backstage parameter arranges module, database layer storing process functional module, application server cluster, indent queue monitoring and dynamic virtual stock minute storehouse module, virtual inventory Back Administration Module and virtual inventory monitoring module, wherein

Described virtual inventory backstage parameter arranges module for the correlation parameter of virtual inventory is set;

Described database layer storing process functional module is used for realizing comprising virtual inventory initialization, virtual inventory minute storehouse, regularly routine inspection of virtual inventory, virtual inventory is dynamically alloted and the storing process reclaimed;

The order request that described application server cluster creates for receiving the user, then carry out pre-service and order added to the order processing transaction queues order;

Described indent queue monitoring and dynamic virtual stock minute storehouse module are for monitoring the Inventory Performance in the current disposition of each order processing transaction queues and current virtual storehouse;

Described virtual inventory Back Administration Module is for realizing the virtual inventory back-stage management, comprises that virtual inventory initialization, special outbound warehouse-in are processed, virtual inventory replenishes processings, virtual inventory recycles, virtual inventory routine inspection and virtual inventory minute storehouse planning management;

The virtual inventory success ratio is reduced in Inventory Performance, the order processing that described virtual inventory monitoring module is used for monitoring the current disposition of each order processing transaction queues, inquire about each virtual storehouse of current system, virtual inventory is alloted and the frequent degree reclaimed and abnormal log inquiry and analysis;

Virtual inventory backstage parameter arranges module the virtual inventory correlation parameter is set, and the virtual inventory Back Administration Module carries out initialization to virtual inventory, completes virtual inventory minute storehouse and virtual storehouse, distribution is deposited in reserved warehouse, after load equalizer in application server cluster receives the user and creates order request, order request is forwarded to certain application server, application server cluster carries out pre-service to order after receiving and creating order request, and this order is added to the order processing transaction queues, if indent queue monitoring and dynamic virtual stock minute storehouse module judge and need to be adjusted the quantity in virtual storehouse according to monitored results, the adjustment of the associated storage process implementation of calling data storehouse layer storing process functional module to virtual storehouse quantity, if virtual storehouse does not need to adjust, continue the order in indent queue is carried out to the order issued transaction, the order processing affairs are according to whether containing product in short supply in the order detail and whether currently used system has enabled the virtual inventory scheme, determine that current order processing reduces warehouse, reserved storehouse and deposit or reduce virtual varehouse and deposit, if virtual varehouse is deposited enough, selection is reduced virtual varehouse and is deposited, take the repeating query mode by the virtual storehouse of application layer gated counter and distribute virtual storehouse as each order, the order issued transaction is carried out the stock according to the virtual storehouse of distributing and is reduced operation, after reducing stock's success, delete the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, if virtual varehouse is deposited not, select to reduce reserved warehouse and deposit, if reserved stock is enough, after reducing stock's success, delete the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, if reserved stock is inadequate, this order creation is unsuccessful, and returns to shortage of stock information to the user, deletes the related data of this order in the order processing transaction queues simultaneously.

2. the concurrent competition stock's of height according to claim 1 order processing system is characterized in that: described virtual inventory backstage parameter arranges relative parameters setting, the relative parameters setting of virtual inventory operating strategy that the set correlation parameter of module is safety inventory setting, virtual inventory minute storehouse strategy, task scheduling is stopped using with enable, scheduling time is spaced.

3. the concurrent competition stock's of height according to claim 1 order processing system, it is characterized in that: described database layer storing process functional module comprises that regularly routine inspection module and virtual inventory are dynamically alloted and recycling module for virtual inventory initialization module, virtual inventory minute storehouse module, virtual inventory, wherein

When described virtual inventory initialization module is enabled for system, carry out in advance virtual inventory minute storehouse operation;

Described virtual inventory minute storehouse module is divided storehouse for dynamic virtual stock minute storehouse and manual virtual inventory, virtual inventory minute storehouse realizes original freight house is split into to a reserved storehouse and several virtual storehouse, again by virtual inventory system according to the actual store data of backstage parameter and original freight house according to the inventory allocation strategy, by the inventory allocation of original freight house to reserved storehouse and virtual storehouse;

Described virtual inventory regularly routine inspection module, for the state of each module of routine inspection virtual inventory system regularly, makes virtual inventory system realize dynamically adjusting to self each module according to the variation of various states;

Described virtual inventory is dynamically alloted with recycling module and is comprised that virtual inventory dynamically allots module and the dynamic recycling module of virtual inventory,

Virtual inventory is dynamically alloted module and is alloted rule according to virtual inventory, check that each virtual varehouse deposits, adjust requirement if meet, the system Auto-writing is alloted request slip, then virtual varehouse being deposited into to row redistributes, singly adjusting according to the virtual inventory adjustment while processing, first inventory data is adjusted and reduced to processing, reduce after finishing dealing with and again inventory data is adjusted and increased processing;

The dynamic recycling module of virtual inventory reclaims rule according to virtual inventory, checks each virtual inventory, if meet, merges requirement, and the system Auto-writing merges request slip, then carries out the virtual inventory reclaimer operation, and virtual varehouse is deposited and merged to virtual reserved storehouse.

4. the concurrent competition stock's of height according to claim 3 order processing system, it is characterized in that: a described dynamic virtual stock minute storehouse refers to without manual intervention, length by system by each application server order processing transaction queues of monitoring application layer, judged that in conjunction with the backstage configuration parameter current system is in peak traffic phase or low peak period, then automatically produce a virtual inventory minute storehouse tune and increase or adjust and reduce plan, and carry out this plan.

5. the concurrent competition stock's of height according to claim 3 order processing system, it is characterized in that: a described manual virtual inventory minute storehouse refers to by manual intervention virtual inventory minute storehouse, the system manager judges with service development strategy and related data whether this time period exists the order peak period, work out in advance virtual inventory minute storehouse plan, and automatically implement this plan by system before this order peak period.

6. the concurrent competition stock's of height according to claim 1 order processing system, it is characterized in that: described virtual inventory Back Administration Module comprises that virtual inventory allots with retrieval management module, virtual inventory minute storehouse planning management module, specially goes out to put in storage processing module and virtual inventory initialization module, wherein

Described virtual inventory is alloted with the retrieval management module for the single inquiry of requisition slip/reclaim, establishment, modification, deletion and is carried out stock allotment/reclaimer operation;

Described virtual inventory minute storehouse planning management module is divided storehouse planning management operation for inquiry, establishment, modification, deletion and the execution virtual inventory of virtual inventory minute storehouse plan;

Describedly specially go out to put in storage processing module and reduce stock's processing in non-order processing mode, non-order processing mode refers to that dump warehouse-in and outbound, special stock move, product rejection, the processing of delivering from godown especially;

Described virtual inventory initialization module realization according to the inventory allocation strategy, reassigns to reserved storehouse and virtual storehouse to the actual store data of original freight house by original freight house stock.

7. the disposal route of the concurrent competition stock of the described height of claim 1 order processing system is characterized in that comprising the following steps:

(1) user initiates to create order request;

(2) order request that application server cluster creates the user by load equalizer is forwarded to certain application server in application server cluster, realizes the load balancing of the concurrent order processing of application server floor height; Application server carries out pre-service and this order is added to the order processing transaction queues order after receiving and creating order request;

(3) indent queue monitoring and a dynamic virtual stock minute storehouse module judge whether contain product in short supply in this order detail and whether currently used system has enabled the virtual inventory scheme, determine that current order processing reduces warehouse, reserved storehouse and deposit or reduce virtual varehouse and deposit

If i. in this order detail, contain product in short supply or do not enable the virtual inventory scheme, reduce reserved warehouse and deposit, proceed to step (4);

If ii. in this order detail, do not contain product in short supply and enabled the virtual inventory scheme, reduce virtual varehouse and deposit, proceed to step (5);

(4) meet and reduce reserved stock's condition, reduce reserved warehouse and deposit; It is capable that reserved inventory record is inquired about and locked to the processing transactions of order at first, and reserved stock storehouse data are carried out to the availability inspection;

If the reserved warehouse of I is deposited enough, reduce reserved warehouse and deposit, after reducing stock's success, delete the related data of this order in the order processing waiting list simultaneously, then this order creation successful information is returned to the user, proceed to step (6);

If reserved stock is inadequate for II, this order creation is unsuccessful, and returns to shortage of stock information to the user, deletes the related data of this order in the order processing waiting list simultaneously, proceeds to step (6);

(5) meet and to reduce virtual varehouse and deposit condition, reduce virtual varehouse and deposit; The order processing program reads the repeating query of application server record and reduces virtual storehouse counter, handling procedure is selected corresponding virtual storehouse according to register, then at first the processing transactions of this order is inquired about and is locked this virtual varehouse and deposit the record row, and these virtual storehouse data are carried out to the availability inspection;

If i. virtual varehouse is deposited enough, order carries out the stock according to the virtual storehouse of distributing and reduces operation, after reducing stock's success, deletes the related data of this order in the order processing transaction queues simultaneously, then this order creation successful information is returned to the user, proceed to step (6);

If ii. virtual varehouse is deposited not, select to reduce reserved warehouse and deposit, proceed to step (4);

(6) complete whole order processing flow process.

8. the disposal route of the concurrent competition stock's of height according to claim 7 order processing system, it is characterized in that: following allocation step is drawn together in described reserved storehouse and virtual varehouse bag deposit:

(1) according to inventory level and the business development planning of freight house, the setting of virtual inventory minute storehouse quantity n is done to following derivation: if increase constraint condition, when actual store is average inventory, each virtual inventory all meets the requirement of virtual inventory one-level safety line;

Work as $S_{\mathrm{RDC}}=\stackrel{\&OverBar;}{S}$ The time, $Q_1<S_i=\frac{R\%}{n}\&CenterDot;\stackrel{\&OverBar;}{S},$ So $R\%>\frac{T_Q}{\stackrel{\&OverBar;}{T}}\&CenterDot;n$

$\left\{\begin{array}{c}R\%>\frac{T_Q}{\stackrel{\&OverBar;}{T}}\&CenterDot;n\\ R\%<\frac{n}{{\mathrm{\&lambda;}}_R+n}\&CenterDot;100\%\end{array}\right.$

Obtain:

$n<\frac{\stackrel{\&OverBar;}{T}}{T_Q}-{\mathrm{\&lambda;}}_R$

(2) being re-assigned to n+1(n>=0 according to the actual store of RDC) in individual virtual inventory, the setting of n+1 virtual library is followed successively by S ₀, S ₁, S ₂S _nS ₀For virtual reserved stock, for the treatment of emergency event, S ₁, S ₂S _nFor virtual service is processed the stock;

A) all actual store S current RDC _RDCAllocated;

B) virtual reserved stock S ₀Summation with virtual service processing stock

Distributed by a certain percentage, be distributed equally in virtual service is processed the stock;

If R%(0<R<100 i.) be the accounting of virtual inventory, allocation proportion is:

$\frac{S_0}{\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}{S}_i}=\frac{100\%-R\%}{R\%}$

Ii. owing to being divided equally in virtual service processing stock, (n>=1)

During iii. due to initialization, virtual reserved stock S ₀Can not be less than S _iIf the ratio that virtual reserved stock and arbitrary virtual service are processed the stock is λ _R, can be expressed as:

S ₀>λ _RS _i(λ wherein _R>1)

Can obtain thus: $R\%<\frac{n}{{\mathrm{\&lambda;}}_R+n}\&CenterDot;100\%$

C) reclaim rule according to virtual inventory and checked, if meet, merge rule, virtual service is processed to the stock and merge to virtual reserved stock;

Even S _i=0(n>=1), S ₀=S _RDC

Mean average inventory every day;

S _RDC: mean current freight house stock total quantity;

RDC: mean a certain freight house;

Be expressed as the number of days sold of average inventory every day;

T _Q: mean virtual inventory one-level safety line Q ₁But the number of days of supports sales;

λ _R(λ _R>1): while being expressed as the every day initialization, the ratio in virtual reservation stock and single virtual stock storehouse;

λ _Q: mean virtual inventory one-level safety line Q ₁With average inventory every day

The ratio,

N: mean virtual inventory reservoir area quantity;

R%: mean that the virtual inventory library initialization accounts for routine R%:R% and n, λ _RRelevant, must meet

$R\%<\frac{n}{{\mathrm{\&lambda;}}_R+n}\&CenterDot;100\%;$

Q ₁: mean virtual inventory one-level safety line,

Q ₂: mean virtual inventory secondary safety line,

9. the disposal route of the concurrent competition stock's of height according to claim 8 order processing system is characterized in that: described virtual inventory reclaims and comprises the following steps:

If a) the virtual reserved stock S of a certain product ₀Be less than virtual library one-level safety line Q ₁, i.e. S ₀<Q ₁, all virtual inventories of this product are incorporated to S ₀

B) if the summation that current each virtual service of a certain product is processed the stock is less than virtual inventory one-level safety line Q ₁, current each virtual service is processed the stock not containing S ₀,

All virtual inventories of this product are incorporated to S ₀.

10. the disposal route of the concurrent competition stock's of height according to claim 9 order processing system, it is characterized in that: described virtual inventory is alloted and is comprised the following steps:

If a) summation of current each virtual inventory of a certain product is less than virtual inventory secondary safety line Q ₂, current each virtual inventory is not containing S ₀, and S ₀Currency be greater than 3 times of virtual inventory secondary safety line Q ₂, to each virtual inventory replenish to $1.5\&times;\frac{Q_2}{n},$ Work as $\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}{S}_i<Q_2$ And S ₀>3Q ₂If, $(\frac{Q_2}{n}\&times;1.5-S_i)>0,$ By S ₀To S _iReplenish $(\frac{Q_2}{n}\&times;1.5-S_i);$

B) if the summation of current each virtual inventory of a certain product is greater than virtual inventory secondary safety line Q ₂, current each virtual inventory is not containing S ₀, and the ratio of maximum stock's number and minimum inventories number is divided equally allotment over a certain warning value to current each virtual inventory:

If i. S ₀From virtual reservoir area S _iReclaim resource, allot yield and be

If ii.

S ₀To virtual reservoir area S _iResources allocation, allot sendout and be

If

For per day stock,

For per day stock's the number of days sold, the sold stock of every day is

Can establish thus

T _QFor working as the stock, be Q ₁But the time supports sales number of days, λ _QFor virtual inventory one-level safety line Q ₁Accounting with average inventory every day;

Virtual inventory secondary safety line Q ₂With virtual inventory one-level safety line Q ₁For fixed proportion, this fixed proportion is made as 2, $Q_2=2\&CenterDot;Q_1=2\&CenterDot;\frac{T_Q}{\stackrel{\&OverBar;}{T}}\&CenterDot;\stackrel{\&OverBar;}{S}.$

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