CN108717462A - A kind of database snapshot verification method and system - Google Patents
A kind of database snapshot verification method and system Download PDFInfo
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- CN108717462A CN108717462A CN201810522370.XA CN201810522370A CN108717462A CN 108717462 A CN108717462 A CN 108717462A CN 201810522370 A CN201810522370 A CN 201810522370A CN 108717462 A CN108717462 A CN 108717462A
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Abstract
The present invention relates to technical field of memory, a kind of database snapshot verification method is provided and system, method include：Environment is created according to the snapshot built in advance, generate in corresponding with first time point and the second time first object disk data in data and the second destination disk, and the first snapshot corresponding with data in the first object disk, the second snapshot corresponding with data in second destination disk；Control executes rolling back action, and judgement is compared with data in the snapshot and destination disk at the correspondence time point being generated in advance in data in the snapshot and destination disk at the correspondence time point that rolling back action is got；When judging to match, then judge that database snapshot functions are normal；When judging to mismatch, then judge that database snapshot functions are abnormal, detection verification is made to the authenticity and completeness of snapshot to realize, compensates for the blank of the snapshot verification based on database field.
Description
Technical field
The invention belongs to technical field of memory more particularly to a kind of database snapshot verification method and systems.
Background technology
With the arrival in big data epoch, data have become enterprise, mechanism and personal most important wealth.And data set
In have become trend of the times, more and more enterprises all select self-built (cloud) storage system, or directly Data Migration to high in the clouds.
Currently, carrying out online data backup by snapshot and restoring, becomes one indispensable function of on-line system, receive producer
With the favor of client.
Quick data recovery can be carried out when application and trouble or file corruption occur for storage device, data are restored
The state at some available time point.Another effect of snapshot is to provide another data access for storage user to lead to
Road, when former data carry out application on site processing, user can access snapshot data, can also carry out the work such as testing using snapshot
Make.
Effect in view of snapshot is so big, raises an objection for the authenticity and completeness of snapshot, but currently without
Unspecial design method makes detection and verification to the authenticity and completeness of snapshot.
Invention content
The purpose of the present invention is to provide a kind of numbers that detection verification can be effectively made to the authenticity of snapshot and completeness
According to library snapshot verification method.
The invention is realized in this way a kind of database snapshot verification method, the method includes following step：
Environment is created according to the snapshot built in advance, generates first object corresponding with first time point and the second time
Data in data and the second destination disk in disk, and the first snapshot corresponding with data in the first object disk, with it is described
Corresponding second snapshot of data in second destination disk；
Control executes rolling back action, in the snapshot and destination disk at the correspondence time point that rolling back action is got data with it is pre-
Judgement is compared in data in the snapshot and destination disk at the correspondence time point first generated；
When data are corresponding with being generated in advance in the snapshot and destination disk for judging correspondence time point that rolling back action is got
In the snapshot and destination disk at time point when Data Matching, then judge that the database snapshot function is normal；
When data are corresponding with being generated in advance in the snapshot and destination disk for judging correspondence time point that rolling back action is got
When data mismatch in the snapshot and destination disk at time point, then the database snapshot dysfunction is judged.
As an improvement scheme, the method further includes following step：
Snapshot is built in advance creates environment；
Described the step of building snapshot establishment environment in advance, specifically includes following step：
The position of advance planning database control file, data file and file associated with the data file；
According to database control file, data file and the text associated with the data file planned in advance
The position of part, by installing DB on destination host；
Snapshot is created to the destination disk or executes timing snapshot construction strategy.
As an improvement scheme, it is described to generate in corresponding with first time point and the second time first object disk
Data in data and the second destination disk, and the first snapshot corresponding with data in the first object disk and described second
The step of data corresponding second snapshot, specifically includes following step in destination disk：
In step sl, in multiple destination disks, corresponding database and table are created；
In step s 2, in the database, additions and deletions is executed to the table and changes and looks into operation, and recorded additions and deletions and change and look into operation
Data in first time point after the completion in the destination disk are denoted as data A；
In step s3, while recording the data A, snapshot is created to multiple destination disks, is denoted as snapshot A；
In step s 4, after reaching preset time threshold, control, which returns, executes the step S2 and S3, generates respectively simultaneously
The snapshot for recording data and corresponding second time point in the second time point upper destination disk, is denoted as data B and snapshot B respectively.
As an improvement scheme, the database be oracle database.
As an improvement scheme, the destination disk include disk where database control file and data file with
And disk where file associated with the data file.
Another object of the present invention is to provide a kind of database snapshots to verify system, the system comprises：
Snapshot data generation module generates and first time point and for creating environment according to the snapshot built in advance
Data in data and the second destination disk in two times corresponding first object disk, and with data phase in the first object disk
Corresponding first snapshot, the second snapshot corresponding with data in second destination disk；
Rollback judgment module executes rolling back action, the snapshot at the correspondence time point that rolling back action is got for controlling
Judgement is compared with data in the snapshot and destination disk at the correspondence time point being generated in advance with data in destination disk；
First determination module, for when data in the snapshot and destination disk that judge correspondence time point that rolling back action is got
With when Data Matching, then judging the database snapshot function just in the snapshot and destination disk at the corresponding time point being generated in advance
Often；
Second determination module, for when data in the snapshot and destination disk that judge correspondence time point that rolling back action is got
When being mismatched with data in the snapshot and destination disk at the corresponding time point being generated in advance, then judge that the database snapshot function is different
Often.
As an improvement scheme, the system also includes：
Snapshot creates environmental structure module, and environment is created for building snapshot in advance；
The snapshot creates environmental structure module and specifically includes：
Document location planning module, for advance planning database control file, data file and with the data text
The position of the associated file of part；
Installing DB module, for according to plan in advance the database control file, data file and with institute
The position for stating the associated file of data file, by installing DB on destination host；
Snapshot creation module, for creating snapshot to the destination disk or executing timing snapshot construction strategy.
As an improvement scheme, the snapshot data generation module specifically includes：
Database creation module, in multiple destination disks, creating corresponding database and table；
Data A logging modles, in the database, changing to table execution additions and deletions and looking into operation, and record additions and deletions
Change the data in the destination disk in the first time point after the completion of looking into operation, is denoted as data A；
Snapshot A creation modules, for while recording the data A, creating snapshot to multiple destination disks, being denoted as
Snapshot A；
Data B and snapshot B logging modles, for after reaching preset time threshold, control to generate and records second respectively
On time point in destination disk data and corresponding second time point snapshot, be denoted as data B and snapshot B respectively.
As an improvement scheme, the database be oracle database.
As an improvement scheme, the destination disk include disk where database control file and data file with
And disk where file associated with the data file.
In embodiments of the present invention, environment is created according to the snapshot built in advance, when generating with first time point and second
Between data in data and the second destination disk in corresponding first object disk, and it is corresponding with data in the first object disk
The first snapshot, the second snapshot corresponding with data in second destination disk；Control executes rolling back action, by rolling back action
In the snapshot and destination disk at the correspondence time point got data in the snapshot and destination disk at the corresponding time point being generated in advance
Judgement is compared in data；When judging to match, then judge that database snapshot functions are normal；When judging to mismatch, then judge
Database snapshot dysfunction is made detection verification to the authenticity and completeness of snapshot to realize, is compensated for based on data
The blank of the snapshot verification in library field.
Description of the drawings
Fig. 1 is the implementation flow chart of database snapshot verification method provided by the invention；
Fig. 2 is the implementation flow chart provided by the invention built snapshot in advance and create environment；
Fig. 3 be it is provided by the invention generate in corresponding with first time point and the second time first object disk data and
Data in second destination disk, and the first snapshot corresponding with data in the first object disk and second destination disk
The implementation flow chart of interior corresponding second snapshot of data；
Fig. 4 is the structure diagram of database snapshot verification system provided by the invention；
Fig. 5 is the structure diagram of snapshot data generation module provided by the invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the implementation flow chart of database snapshot verification method provided by the invention, specifically includes following steps
Suddenly：
In step S101, environment is created according to the snapshot built in advance, is generated and first time point and the second time phase
Data in data and the second destination disk in corresponding first object disk, and corresponding with data in the first object disk
One snapshot, the second snapshot corresponding with data in second destination disk.
In step s 102, control executes rolling back action, the snapshot and mesh at the correspondence time point that rolling back action is got
Data are compared with data in the snapshot and destination disk at the correspondence time point being generated in advance and sentence in bidding quotation.
In step s 103, when in the snapshot and destination disk for judging correspondence time point that rolling back action is got data with it is pre-
In the snapshot and destination disk at the correspondence time point first generated when Data Matching, then judge that the database snapshot function is normal.
In step S104, when in the snapshot and destination disk for judging correspondence time point that rolling back action is got data with it is pre-
When data mismatch in the snapshot and destination disk at the correspondence time point first generated, then the database snapshot dysfunction is judged.
In this embodiment, which is oracle database, oracle database is disposed on snapshot disk, by right
The comparison of the application state and data of different time points oracle functions may be implemented to storage snapshot functions authenticity and complete
The verification of property.
In embodiments of the present invention, it also needs to execute following step before executing above-mentioned steps S101：
Snapshot is built in advance creates environment；
As shown in Fig. 2, described the step of building snapshot establishment environment in advance, specifically includes following step：
In step s 201, advance planning database control file, data file and associated with the data file
File position.
In step S202, according to plan in advance the database control file, data file and with the data
The position of the associated file of file, by installing DB on destination host.
In step S203, snapshot is created to the destination disk or executes timing snapshot construction strategy.
As shown in figure 3, generating data and the second mesh in first object disk corresponding with first time point and the second time
Data in data in bidding quotation, and the first snapshot corresponding with data in the first object disk and second destination disk
The step of corresponding second snapshot, specifically includes following step：
In step S301, in multiple destination disks, corresponding database and table are created.
In this step, destination disk include disk and data file where database control file and with the data
Disk where the associated file of file.
In step s 302, in the database, additions and deletions is executed to the table and changes and looks into operation, and recorded additions and deletions and change and look into behaviour
Data in first time point after the completion of work in the destination disk are denoted as data A.
Wherein, the additions and deletions change that look into operation include being inserted into, searching, changing the operations such as data.
In step S303, while recording the data A, snapshot is created to multiple destination disks, is denoted as snapshot
A。
In step s 304, after reaching preset time threshold, control, which returns, executes the step S302 and S303, respectively
The snapshot for generating and recording data and corresponding second time point in the second time point upper destination disk, be denoted as respectively data B and
Snapshot B.
Fig. 4 shows the structure diagram of database snapshot verification system provided by the invention, for convenience of description, in figure only
It gives and the relevant part of the embodiment of the present invention.
Database snapshot verifies system：
Snapshot data generation module 11, for creating environment according to the snapshot built in advance, generate with first time point and
Data in data and the second destination disk in second time corresponding first object disk, and with data in the first object disk
Corresponding first snapshot, the second snapshot corresponding with data in second destination disk；
Rollback judgment module 12, for control execute rolling back action, the correspondence time point that rolling back action is got it is fast
Judgement is compared with data in the snapshot and destination disk at the correspondence time point being generated in advance according to data in destination disk；
First determination module 13, for when several in the snapshot and destination disk that judge correspondence time point that rolling back action is got
According to when Data Matching, then judging the database snapshot function just in the snapshot and destination disk at the corresponding time point being generated in advance
Often；
Second determination module 14, for when several in the snapshot and destination disk that judge correspondence time point that rolling back action is got
When according to being mismatched with data in the snapshot and destination disk at the corresponding time point being generated in advance, then the database snapshot function is judged
It is abnormal.
Wherein, snapshot creates environmental structure module 15, and environment is created for building snapshot in advance；
The snapshot creates environmental structure module 15 and specifically includes：
Document location planning module 16, for advance planning database control file, data file and with the data
The position of the associated file of file；
Installing DB module 17, for according to plan in advance the database control file, data file and with
The position of the associated file of data file, by installing DB on destination host；
Snapshot creation module 18, for creating snapshot to the destination disk or executing timing snapshot construction strategy.
In this embodiment, as shown in figure 5, snapshot data generation module 11 specifically includes：
Database creation module 19, in multiple destination disks, creating corresponding database and table；
Data A logging modles 20, in the database, changing to table execution additions and deletions and looking into operation, and record increasing
The data in the destination disk in the first time point after the completion of looking into operation are revised, data A is denoted as；
Snapshot A creation modules 21, for while recording the data A, snapshot, note to be created to multiple destination disks
For snapshot A；
Data B and snapshot B logging modles 22 are controlled and generate and record the respectively for when reach preset time threshold after
The snapshot of data and corresponding second time point, is denoted as data B and snapshot B respectively in two time points upper destination disk.
Wherein, the function of above-mentioned modules is as recorded in above method embodiment, and details are not described herein.
In embodiments of the present invention, environment is created according to the snapshot built in advance, when generating with first time point and second
Between data in data and the second destination disk in corresponding first object disk, and it is corresponding with data in the first object disk
The first snapshot, the second snapshot corresponding with data in second destination disk；Control executes rolling back action, by rolling back action
In the snapshot and destination disk at the correspondence time point got data in the snapshot and destination disk at the corresponding time point being generated in advance
Judgement is compared in data；When judging to match, then judge that database snapshot functions are normal；When judging to mismatch, then judge
Database snapshot dysfunction is made detection verification to the authenticity and completeness of snapshot to realize, is compensated for based on data
The blank of the snapshot verification in library field.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of database snapshot verification method, which is characterized in that the method includes following step：
Environment is created according to the snapshot built in advance, is generated in first object disk corresponding with first time point and the second time
Data in data and the second destination disk, and the first snapshot corresponding with data in the first object disk and described second
Corresponding second snapshot of data in destination disk；
It controls and executes rolling back action, data and pre- Mr. in the snapshot and destination disk at the correspondence time point that rolling back action is got
At correspondence time point snapshot and destination disk in data judgement is compared；
When data in the snapshot and destination disk for judging correspondence time point that rolling back action is got and the corresponding time being generated in advance
In the snapshot and destination disk of point when Data Matching, then judge that the database snapshot function is normal；
When data in the snapshot and destination disk for judging correspondence time point that rolling back action is got and the corresponding time being generated in advance
When data mismatch in the snapshot and destination disk of point, then the database snapshot dysfunction is judged.
2. database snapshot verification method according to claim 1, which is characterized in that the method further includes following steps
Suddenly：
Snapshot is built in advance creates environment；
Described the step of building snapshot establishment environment in advance, specifically includes following step：
The position of advance planning database control file, data file and file associated with the data file；
According to database control file, data file and the file associated with the data file planned in advance
Position, by installing DB on destination host；
Snapshot is created to the destination disk or executes timing snapshot construction strategy.
3. database snapshot verification method according to claim 2, which is characterized in that it is described generation with first time point and
Data in data and the second destination disk in second time corresponding first object disk, and with data in the first object disk
The step of corresponding first snapshot, the second snapshot corresponding with data in second destination disk, specifically includes following steps
Suddenly：
In step sl, in multiple destination disks, corresponding database and table are created；
In step s 2, in the database, additions and deletions is executed to the table and changes and looks into operation, and recorded additions and deletions and change and look into operation completion
Data in first time point afterwards in the destination disk are denoted as data A；
In step s3, while recording the data A, snapshot is created to multiple destination disks, is denoted as snapshot A；
In step s 4, after reaching preset time threshold, control, which returns, executes the step S2 and S3, generates and records respectively
The snapshot of data and corresponding second time point, is denoted as data B and snapshot B respectively in second time point upper destination disk.
4. database snapshot verification method according to claim 3, which is characterized in that the database is oracle data
Library.
5. database snapshot verification method according to claim 3, which is characterized in that the destination disk includes the data
Disk where disk and data file where library controls file and file associated with the data file.
6. a kind of database snapshot verifies system, which is characterized in that the system comprises：
Snapshot data generation module, for creating environment according to the snapshot built in advance, when generating with first time point and second
Between data in data and the second destination disk in corresponding first object disk, and it is corresponding with data in the first object disk
The first snapshot, the second snapshot corresponding with data in second destination disk；
Rollback judgment module executes rolling back action, the snapshot and mesh at the correspondence time point that rolling back action is got for controlling
Judgement is compared with data in the snapshot and destination disk at the correspondence time point being generated in advance in data in bidding quotation；
First determination module, for when in the snapshot and destination disk that judge correspondence time point that rolling back action is got data in advance
In the snapshot and destination disk at the correspondence time point first generated when Data Matching, then judge that the database snapshot function is normal；
Second determination module, for when in the snapshot and destination disk that judge correspondence time point that rolling back action is got data in advance
When data mismatch in the snapshot and destination disk at the correspondence time point first generated, then the database snapshot dysfunction is judged.
7. database snapshot according to claim 6 verifies system, which is characterized in that the system also includes：
Snapshot creates environmental structure module, and environment is created for building snapshot in advance；
The snapshot creates environmental structure module and specifically includes：
Document location planning module, for advance planning database control file, data file and with the data file phase
The position of associated file；
Installing DB module, for according to plan in advance the database control file, data file and with the number
According to the position of the associated file of file, by installing DB on destination host；
Snapshot creation module, for creating snapshot to the destination disk or executing timing snapshot construction strategy.
8. database snapshot according to claim 7 verifies system, which is characterized in that the snapshot data generation module tool
Body includes：
Database creation module, in multiple destination disks, creating corresponding database and table；
Data A logging modles are looked into the database, changing and looking into operation, and record additions and deletions to change to table execution additions and deletions
Data in first time point after the completion of operation in the destination disk are denoted as data A；
Snapshot A creation modules, for while recording the data A, creating snapshot to multiple destination disks, being denoted as snapshot
A；
Data B and snapshot B logging modles, for after reaching preset time threshold, control to generate and recorded for the second time respectively
On point in destination disk data and corresponding second time point snapshot, be denoted as data B and snapshot B respectively.
9. database snapshot verification method according to claim 8, which is characterized in that the database is oracle data
Library.
10. database snapshot verification method according to claim 8, which is characterized in that the destination disk includes the number
According to disk where disk and data file where library control file and file associated with the data file.
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| CN201810522370.XA CN108717462A (en) | 2018-05-28 | 2018-05-28 | A kind of database snapshot verification method and system |
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| CN111400194A (en) * | 2020-04-17 | 2020-07-10 | 支付宝(杭州)信息技术有限公司 | Snapshot creating method, snapshot executing method, snapshot creating device, snapshot executing device and equipment based on test tool |
| CN112445759A (en) * | 2020-11-30 | 2021-03-05 | 中国人寿保险股份有限公司 | Method and device for cluster data replication across distributed databases and electronic equipment |
| CN115510144A (en) * | 2022-11-17 | 2022-12-23 | 北京滴普科技有限公司 | Method and system for capturing real-time change data of database |
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Application publication date: 20181030 |