CN106503132B - A kind of distributed transaction management method and system - Google Patents
A kind of distributed transaction management method and system Download PDFInfo
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- CN106503132B CN106503132B CN201610913023.0A CN201610913023A CN106503132B CN 106503132 B CN106503132 B CN 106503132B CN 201610913023 A CN201610913023 A CN 201610913023A CN 106503132 B CN106503132 B CN 106503132B
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Abstract
The present invention relates to a kind of distributed transaction management methods, comprising the following steps: defines global transaction, and other affairs called in the global transaction are defined as subtransaction；Global transaction table is established, for recording the state of global transaction and subtransaction；When calling global transaction, recorded in the global transaction table；When calling the subtransaction in the global transaction, the subtransaction generated in the global transaction table is recorded；Define a global transaction manager, for scanning global transaction table, and judged: if global transaction state is to fail, and there are successful subtransaction process under the global transaction, the subtransaction that will succeed carries out rollback；If global transaction state be successfully, and under the global transaction exist failure subtransaction process, then call the subtransaction again；If global transaction state be it is unknown, by successful subtransaction carry out rollback.Meanwhile the present invention also provides a kind of distributed transaction management systems for realizing the above method.
Description
Technical field
The present invention relates to computer field, especially a kind of distribution management method；The invention further relates to one kind for real
The distributed management system of existing the method.
Background technique
In current popular distributed system, the system of micro services framework, a request is not usually to be serviced by one
In a method individually complete, but by multiple systems, multiple services, operate multiple databases and complete a function jointly.
Such a request, the interface being related between multiple sub-services systems call, to different in difference service
Database manipulation is among different affairs.If all processes are normally properly completed, exception is not had, but if certain
When there is wrong throw exception in one subsystem sub-services, the service completed before it and the clothes not carried out also later
When being engaged in how handling, and how to guarantee to have service throw exception, the consistency of database is a urgent problem.
In view of the above-mentioned problems, the patent of invention of Publication No. CN103902560A discloses a kind of distributing real time system side
Method and system.The described method includes: distributed transaction management device creates distributed global transaction；Service Data Management device is according to institute
It states distributed global transaction and creates corresponding no less than one subtransaction；Service Processing Unit is by the distributed global transaction
It is associated with the subtransaction；Distributed transaction management device initiates submission or the rolling back action of the distributed global transaction.
Wherein, when global transaction can not be established with subtransaction to be associated with, it is judged as abnormal conditions, and this is had into affairs and carries out rollback behaviour
Make.
However, due in a distributed transaction system affairs it is complicated, in fact it could happen that the case where it is more.The prior art is only
It can not only be established and be associated with as abnormal conditions with subtransaction using global transaction, and the mode handled is single, directly progress rollback
Operation.This can not make most reasonable processing for specific affairs in this way, affect the efficiency of issued transaction.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology and deficiency, provides a kind of distributed transaction management method
And system.
The present invention is realized especially by technical solution below: a kind of distributed transaction management method, comprising the following steps:
Global transaction is defined, and other affairs called in the global transaction are defined as subtransaction；
Global transaction table is established, for recording the state of global transaction and subtransaction；It is complete at this when calling global transaction
It is recorded in office's transaction table；When calling the subtransaction in the global transaction, the subtransaction that is generated in the global transaction table
Record；
A global transaction manager is defined, for scanning global transaction table, and is judged:
If global transaction state is failure, and there are successful subtransaction processes under the global transaction, by success subtransaction
Carry out rollback；
If global transaction state be successfully, and under the global transaction exist failure subtransaction process, then again call should
Subtransaction；
If global transaction state be it is unknown, by successful subtransaction carry out rollback.
As a further improvement of the present invention, it further comprises the steps of: when calling subtransaction, by the call parameters of the subtransaction
It is saved with result.
As a further improvement of the present invention, it further comprises the steps of: when repeating to call subtransaction, saves time for repeating to call
The several and time.
As a further improvement of the present invention, it further comprises the steps of: when the subtransaction of same request is repeated calling, skips
The repetitive requests.
As a further improvement of the present invention, when global transaction state be successfully, and under the global transaction exist failure
When subtransaction process, the subtransaction of the failure is subjected to ascending sort, then execute call operation one by one.
As a further improvement of the present invention, when global transaction state is to fail, and exist under the global transaction successful
When subtransaction process, descending sort is carried out to successful subtransaction, then carry out rolling back action one by one.
As a further improvement of the present invention, it when the subtransaction of the same global transaction is forward or when rolling back action, carries out
The row lock operation of database.
As a further improvement of the present invention, when having part forward or the successful subtransaction of rollback, then global transaction is updated
State be " part rollback ".
As a further improvement of the present invention, when having whole forward or the successful subtransaction of rollback, then global transaction is updated
State be " rollback ".
The invention further relates to a kind of management systems of distributed transaction, comprising:
Definition module is defined as subtransaction for defining global transaction, and by other affairs called in the global transaction；
Global transaction table establishes module, and for establishing global transaction table, the global transaction table is for recording global transaction
With the state of subtransaction；When calling global transaction, recorded in the global transaction table；When in the calling global transaction
When subtransaction, the subtransaction generated in the global transaction table is recorded；
Global transaction manager for scanning global transaction table, and is judged:
If global transaction state is failure, and there are successful subtransaction processes under the global transaction, by success subtransaction
Carry out rollback；
If global transaction state be successfully, and under the global transaction exist failure subtransaction process, then again call should
Subtransaction；
If global transaction state be it is unknown, by successful subtransaction carry out rollback.
As a further improvement of the present invention, further include preserving module, be used for when calling subtransaction, by the subtransaction
Call parameters and result are saved.
As a further improvement of the present invention, the preserving module is also used to save and repeat when repeating to call subtransaction
The number of calling and time.
It as a further improvement of the present invention, further include request judgment module, for when the sub- thing for being judged as same request
When business is repeated calling, the repetitive requests are skipped.
As a further improvement of the present invention, further include ascending sort module, for when global transaction state be successfully, and
When there is the subtransaction process of failure under the global transaction, the subtransaction of the failure is subjected to ascending sort.
It as a further improvement of the present invention, further include descending sort module, for being failure when global transaction state, and
There are when successful subtransaction process under the global transaction, descending sort is carried out to successful subtransaction.
As a further improvement of the present invention, further include row lock module, for when the same global transaction subtransaction to
When preceding or rolling back action, the row lock operation of database is carried out.
As a further improvement of the present invention, further include state update module, have part forward or rollback success for working as
Subtransaction, then the state for updating global transaction is " part rollback ".
It as a further improvement of the present invention, further include state update module, for that ought have whole forward or rollback success
Subtransaction, then update global transaction state be " rollback ".
Compared with the prior art, the present invention have it is following the utility model has the advantages that
It solves under distributed system, micro services architecture mode, distributed transaction is difficult to be managed collectively, to other services
The problem of call result is unable to control.Under the support of the global transaction management function of frame, developer and system maintenance personnel
The manual operation largely to the investigation of wrong data and maintenance, reduced to creation data can be reduced, system robustness is enhanced,
Data correctness and reliability are improved, provides succinct maintenance thinking for the complicated business scene of multisystem service.Meanwhile
Corresponding processing can be carried out for different business, mode is abundant, can execute different places for different service conditions
Reason mode.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the step method flow diagram of distributed transaction management method of the invention.
Fig. 2 is the module connection block diagram of distributed transaction management system of the invention.
Specific embodiment
The present invention provides a kind of distribution to solve defect single for abnormal conditions processing mode in the prior art
The management method and system of formula affairs, are illustrated especially by embodiment below.
Referring to Fig. 1, it is the step flow chart of distributed transaction management method of the invention.The present invention provides one kind
Distributed transaction management method, comprising the following steps:
S1: global transaction is defined, and other affairs called in the global transaction are defined as subtransaction.
S2: establishing global transaction table, for recording the state of global transaction and subtransaction；When calling global transaction,
It is recorded in the global transaction table；When calling the subtransaction in the global transaction, the son that is generated in the global transaction table
Transaction journal.
Specifically, in this step, when calling a global transaction process, a unique global transaction will be generated and compiled
Number, and a record is inserted into global transaction table, represent current call.Corresponding global transaction note will be generated by calling when subtransaction
The subtransaction of record records, and subtransaction record includes the unique number of oneself, and global transaction is numbered and it is in global transaction process
In serial number.When each subtransaction success or it is abnormal when, the state of the subtransaction can be updated in the database；When global thing
When business is completed or is abnormal, the state of corresponding record in global transaction table is updated.
S3: a global transaction manager is defined, for scanning global transaction table, and carries out judgement below.Specifically,
Scan the global transaction table within global transaction manager every 30 seconds in the present invention.
S31: if global transaction state is failure, and there are successful subtransaction processes under the global transaction, then execute step
It is rapid: descending sort being carried out to successful subtransaction, then carries out rolling back action one by one.Specifically, in the present invention by described complete
Office's task manager calls the carry out rollback of the subtransaction automatically, by modified data convert.
S32: if global transaction state be successfully, and under the global transaction exist failure subtransaction process, then execute step
It is rapid: the subtransaction of the failure being subjected to ascending sort, then executes call operation one by one.Specifically, passing through the overall situation in the present invention
Task manager calls the subtransaction method again, it is ensured that data normally update.
S33: if global transaction state be it is unknown, by successful subtransaction carry out rollback.
Further, in the present invention in order to allow global transaction manager that can call subtransaction advance or rollback automatically, entirely
Office's transaction table needs to safeguard the required parameter when subtransaction process is called, or uses other modes Transfer Parameters.When same
The subtransaction of one global transaction carries out the row lock operation of database, avoids concurrent forward or when rolling back action.
Wherein, for currently forward or rollback failure business process, need to update the next time started avoid excessively frequency
It is numerous.Such as: default is incremented by 30 seconds, and the later period is contemplated that unsuccessfully to be incremented by 30 seconds for the first time, is incremented by 60 seconds for the second time, third time is incremented by 1
Minute, maximum is incremented by 15 minutes etc..
S4: when calling subtransaction, the call parameters of the subtransaction and result are saved.
S5: when repeating to call subtransaction, the number for repeating to call and time are saved.
S6: when the subtransaction of same request is repeated calling, the repetitive requests are skipped.This step is to safeguard data
Consistency avoids repeating to call leading to more exceptions, and subtransaction needs to guarantee idempotence.
S7: global transaction state updates.When having part forward or the successful subtransaction of rollback, then the shape of global transaction is updated
State is " part rollback ".When having whole forward or the successful subtransaction of rollback, then the state for updating global transaction is " to have returned
Rolling ".
Referring to Fig. 2, it connects block diagram for the module of distributed transaction management system of the invention.In addition, the present invention is also
It is related to a kind of management system of distributed transaction, comprising: definition module 1, global transaction table establish module 2, global transaction management
Device 3, preserving module 4, request judgment module 5, ascending sort module 6, descending sort module 7, row lock module 8 and state update mould
Block 9.
The definition module 1 is defined as son for defining global transaction, and by other affairs called in the global transaction
Affairs；
The global transaction table establishes module 2, and for establishing global transaction table, the global transaction table is for recording the overall situation
The state of affairs and subtransaction；When calling global transaction, recorded in the global transaction table；When the calling global transaction
In subtransaction when, generated in the global transaction table subtransaction record；
The global transaction manager 3, for scanning global transaction table, and is judged:
If global transaction state is failure, and there are successful subtransaction processes under the global transaction, by success subtransaction
Carry out rollback；
If global transaction state be successfully, and under the global transaction exist failure subtransaction process, then again call should
Subtransaction；
If global transaction state be it is unknown, by successful subtransaction carry out rollback.
The preserving module 4, for when calling subtransaction, the call parameters of the subtransaction and result to be saved.
The preserving module is also used to save the number for repeating to call and time when repeating to call subtransaction.
The request judgment module 5, for skipping the repetition when the subtransaction for being judged as same request is repeated calling
Request.
The ascending sort module 6, for when global transaction state be successfully, and under the global transaction in the presence of fail son
When business process, the subtransaction of the failure is subjected to ascending sort.
For being failure when global transaction state, and there is successfully son under the global transaction in the descending sort module 7
When business process, descending sort is carried out to successful subtransaction.
The row lock module 8, for carrying out database when the subtransaction of the same global transaction is forward or when rolling back action
Row lock operation.
The state update module 9, for when having part forward or the successful subtransaction of rollback, then updating global transaction
State is " part rollback ".The state update module is also used to have whole forward or the successful subtransaction of rollback, then more
The state of new global transaction is " rollback ".
Below by way of specific example, how to be applied when introducing distributed transaction management method and system of the invention.
Such as: in a bidding process in a very common e-commerce system, it may first call discount coupon
Service, obtains the available discount coupon of user, then calls fund account service, freezes the corresponding guarantee fund of user, and then adjust
With buffer service, bid record is updated.
If the process of front is all normally carried out, but is updated when bid records and malfunctioned, then how to deduction discount coupon
Progress rollback is serviced with guarantee fund is freezed? in bidding process, if freezing guarantee fund services time-out, how that knows behaviour
Whether succeed, must rollback so that it is guaranteed that operating? if we want not exit in coupon service time-out, and under continuing
Is how the bid process in face reduced automatically then to safeguard the data of discount coupon automatically later?
For above situation, processing method are as follows:
The first step defines global transaction and subtransaction.Wherein, using bidding process as global transaction, and including subtransaction 1:
It calls discount coupon, subtransaction 2: calling fund account, subtransaction 3: freezing guarantee fund, subtransaction 4: calling buffer service, update
Bid record.
Second step establishes global transaction table.Specific mode and code can be with are as follows:
Wherein, relevant traffic table needs to record transaction_id and transaction_sequence information.
Third step defines global transaction manager, scans the state of the global transaction and subtransaction in the global transaction table
Information.If global transaction state is failure, and there are successful subtransaction processes under the global transaction, then follow the steps: at
The subtransaction of function carries out descending sort, then carries out rolling back action one by one.Specifically, passing through the global transaction pipe in the present invention
Reason device calls the carry out rollback of the subtransaction automatically, by modified data convert.
If global transaction state be successfully, and under the global transaction exist failure subtransaction process, then follow the steps: will
The subtransaction of the failure carries out ascending sort, then executes call operation one by one.Specifically, passing through global transaction pipe in the present invention
Reason device calls the subtransaction method again, it is ensured that data normally update.
If global transaction state be it is unknown, by successful subtransaction carry out rollback.
For example, different rules can be defined according to the actual situation, such as including following situations:
In actual conditions, different classification can be selected according to the importance of subtransaction.Such as: if subtransaction 1 is than heavier
It wants, can be defined as influencing the necessary factor of global transaction state, i.e. subtransaction 1 fails, then global transaction necessarily fails.
It is above only an application example of the invention, distributed transaction processing method of the invention and system can be with
Apply other business in practice.
Compared with the prior art, the present invention have it is following the utility model has the advantages that
It solves under distributed system, micro services architecture mode, distributed transaction is difficult to be managed collectively, to other services
The problem of call result is unable to control.Under the support of the global transaction management function of frame, developer and system maintenance personnel
The manual operation largely to the investigation of wrong data and maintenance, reduced to creation data can be reduced, system robustness is enhanced,
Data correctness and reliability are improved, provides succinct maintenance thinking for the complicated business scene of multisystem service.Meanwhile
Corresponding processing can be carried out for different business, mode is abundant, can execute different places for different service conditions
Reason mode.
The invention is not limited to above embodiment, if not departing from the present invention to various changes or deformation of the invention
Spirit and scope, if these changes and deformation belong within the scope of claim and equivalent technologies of the invention, then this hair
It is bright to be also intended to encompass these changes and deformation.
Claims (18)
1. a kind of distributed transaction management method, it is characterised in that: the following steps are included:
Global transaction is defined, and other affairs called in the global transaction are defined as subtransaction；
Global transaction table is established, for recording the state of global transaction and subtransaction；When calling global transaction, in the overall situation thing
It is recorded in business table；When calling the subtransaction in the global transaction, the subtransaction generated in the global transaction table is recorded；
A global transaction manager is defined, for scanning global transaction table, and is judged:
If global transaction state is failure, and there are successful subtransaction processes under the global transaction, and success subtransaction is carried out
Rollback；
If global transaction state be successfully, and under the global transaction exist failure subtransaction process, then call the sub- thing again
Business；
If global transaction state be it is unknown, by successful subtransaction carry out rollback.
2. distributed transaction management method according to claim 1, it is characterised in that: further comprise the steps of: and calling subtransaction
When, the call parameters of the subtransaction and result are saved.
3. distributed transaction management method according to claim 2, it is characterised in that: further comprise the steps of: and repeating to call son
When affairs, the number for repeating to call and time are saved.
4. distributed transaction management method according to claim 1, it is characterised in that: further comprise the steps of: when same request
When subtransaction is repeated calling, the repetitive requests are skipped.
5. distributed transaction management method according to claim 1, it is characterised in that: when global transaction state be successfully, and
When there is the subtransaction process of failure under the global transaction, by the subtransaction of the failure according to called subtransaction in the overall situation thing
Serial number during business carries out ascending sort, then executes call operation one by one.
6. distributed transaction management method according to claim 1, it is characterised in that: when global transaction state be failure, and
There are when successful subtransaction process under the global transaction, descending sort is carried out to successful subtransaction, then one by one according to being adjusted
Rolling back action is carried out with serial number of the subtransaction during global transaction.
7. distributed transaction management method according to claim 1, it is characterised in that: when the subtransaction of the same global transaction
Forward or when rolling back action, the row lock operation of database is carried out.
8. distributed transaction management method according to claim 1, it is characterised in that: when having part forward or rollback is successful
Subtransaction, then the state for updating global transaction is " part rollback ".
9. distributed transaction management method according to claim 1, it is characterised in that: when having all forward or rollback is successful
Subtransaction, then the state for updating global transaction is " rollback ".
10. a kind of management system of distributed transaction, it is characterised in that: include:
Definition module is defined as subtransaction for defining global transaction, and by other affairs called in the global transaction；
Global transaction table establishes module, and for establishing global transaction table, the global transaction table is for recording global transaction and son
The state of affairs；When calling global transaction, recorded in the global transaction table；Sub- thing in the calling global transaction
When business, the subtransaction generated in the global transaction table is recorded；
Global transaction manager for scanning global transaction table, and is judged:
If global transaction state is failure, and there are successful subtransaction processes under the global transaction, and success subtransaction is carried out
Rollback；
If global transaction state be successfully, and under the global transaction exist failure subtransaction process, then call the sub- thing again
Business；
If global transaction state be it is unknown, by successful subtransaction carry out rollback.
11. the management system of distributed transaction according to claim 10, it is characterised in that: further include preserving module, be used for
When calling subtransaction, the call parameters of the subtransaction and result are saved.
12. the management system of distributed transaction according to claim 11, it is characterised in that: the preserving module is also used to
When repeating to call subtransaction, the number for repeating to call and time are saved.
13. the management system of distributed transaction according to claim 10, it is characterised in that: it further include request judgment module,
For skipping the repetitive requests when the subtransaction for being judged as same request is repeated calling.
14. the management system of distributed transaction according to claim 10, it is characterised in that: it further include ascending sort module,
For when global transaction state be successfully, and under the global transaction exist fail subtransaction process when, by this unsuccessfully sub- thing
Business carries out ascending sort according to serial number of the subtransaction during global transaction that be called.
15. the management system of distributed transaction according to claim 10, it is characterised in that: it further include descending sort module,
For being failure when global transaction state, and there are when successful subtransaction process under the global transaction, to successful subtransaction
Descending sort is carried out according to serial number of the called subtransaction during global transaction.
16. the management system of distributed transaction according to claim 10, it is characterised in that: further include row lock module, be used for
When the subtransaction of the same global transaction is forward or when rolling back action, the row lock operation of database is carried out.
17. the management system of distributed transaction according to claim 10, it is characterised in that: it further include state update module,
State for when having part forward or the successful subtransaction of rollback, then updating global transaction is " part rollback ".
18. the management system of distributed transaction according to claim 10, it is characterised in that: it further include state update module,
For that ought have whole forward or the successful subtransaction of rollback, then the state for updating global transaction is " rollback ".
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| CN107545024B (en) * | 2017-06-12 | 2019-10-25 | 中国银联股份有限公司 | Affairs for distributed data base save point management apparatus and method |
| CN109408201B (en) * | 2017-08-18 | 2022-07-12 | 中国银联股份有限公司 | Transaction management method based on distributed database |
| CN107748694A (en) * | 2017-10-20 | 2018-03-02 | 武汉佰钧成技术有限责任公司 | A kind of Tai Ji distributing real time system framework |
| CN108038141A (en) * | 2017-11-27 | 2018-05-15 | 国云科技股份有限公司 | Ensure the method for data consistency under micro services framework HTTP interactive modes |
| CN108055296B (en) * | 2017-11-30 | 2020-11-27 | 北京中电普华信息技术有限公司 | Transaction processing method and device based on micro-service architecture |
| CN108153598B (en) * | 2017-12-25 | 2021-06-25 | 东软集团股份有限公司 | Data consistency method and device based on micro-service architecture |
| CN108304271B (en) * | 2018-01-16 | 2021-08-06 | 深圳市康拓普信息技术有限公司 | Distributed transaction manager and management method under micro-service architecture |
| CN108415758B (en) * | 2018-03-27 | 2020-11-27 | 深圳市融壹买信息科技有限公司 | Distributed transaction coordination method and device |
| CN109002462B (en) * | 2018-06-04 | 2020-11-27 | 北京明朝万达科技股份有限公司 | Method and system for realizing distributed transaction |
| CN108959403A (en) * | 2018-06-06 | 2018-12-07 | 阿里巴巴集团控股有限公司 | A kind of distributed transaction processing method and device |
| CN109165084A (en) * | 2018-08-20 | 2019-01-08 | 四川长虹电器股份有限公司 | Distributed transaction management method based on state stream |
| CN109491767A (en) * | 2018-11-13 | 2019-03-19 | 上海联寓智能科技有限公司 | The processing method and distributed system of distributed transaction |
| CN111147280B (en) * | 2019-11-29 | 2022-10-04 | 中盈优创资讯科技有限公司 | Transaction control method and device in telecommunication service fulfillment |
| CN111984665B (en) * | 2020-09-10 | 2023-07-25 | 度小满科技(北京)有限公司 | Distributed transaction processing method, device and system |
| CN112711466B (en) * | 2021-03-25 | 2021-08-10 | 北京金山云网络技术有限公司 | Hanging affair inspection method and device, electronic equipment and storage medium |
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