CN105243340A - Method and system for preventing mis-deleting of data in HBase - Google Patents
Method and system for preventing mis-deleting of data in HBase Download PDFInfo
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- CN105243340A CN105243340A CN201510796233.1A CN201510796233A CN105243340A CN 105243340 A CN105243340 A CN 105243340A CN 201510796233 A CN201510796233 A CN 201510796233A CN 105243340 A CN105243340 A CN 105243340A
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- G06F16/13—File access structures, e.g. distributed indices
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/172—Caching, prefetching or hoarding of files
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Abstract
The invention discloses a method for preventing mis-deleting of data in HBase. The method comprises the following steps: setting and storing the storage file of deleted data file in an HDFS catalogue according to user operation; setting a monitoring time period, and monitoring whether the cache folder of the Hbase in the HDFS catalogue has a newly increased data file according to the time period; if so, storing the newly increased data file to the storage file. The method can prevent mis-deleting of data in the HBase. The invention further discloses a system for preventing mis-deleting of data in HBase.
Description
Technical field
The present invention relates to technical field of data security, particularly a kind of method and system preventing data mistake deletion in HBase.
Background technology
HBase is that one distributed, towards the PostgreSQL database arranged, all data files in HBase are all stored on the distributed file system HDFS of Hadoop.HBase supported data node extending transversely, memory space also can depend on the quantity of node.In production environment, the data volume of HBase table is general all larger, deletes Resuming agent larger by mistake.Although the distributed file system HDFS of Hadoop has recycle bin strategy, the table data for Hbase do not come into force.
Once after making the operation of deleting Hbase table, the metadata of Hbase first can be deleted, then the data of each region (data partition) can be moved to one and cry in the file of " archive ", and the master main thread of last Hbase data can be removed the data in archive after five minutes.After sometimes the user of Hbase makes deletion action, might not recognize that tables of data is deleted at short notice, after 5 minutes, data just thoroughly can not have been recovered.Therefore, how to prevent Hbase from showing to delete, be those skilled in the art's technical issues that need to address by mistake.
Summary of the invention
The object of this invention is to provide a kind of method and system preventing data in HBase from by mistake deleting, can prevent data in HBase from deleting by mistake, ensure data integrity in HBase.
For solving the problems of the technologies described above, the invention provides a kind of method preventing data mistake deletion in HBase, comprising:
Under HDFS catalogue, the storage file storing deleted data file is set according to user operation;
The time cycle of setting monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file;
If have, then under newly-increased described data file being stored into described storage file.
Wherein, the time cycle of described setting monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file, comprising:
In start by set date script, add scanning monitoring cache file folder program, and set the time cycle of scanning monitoring cache file folder program described in start by set date;
Whether call described booting script, scanning described cache file folder according to the described time cycle has newly-increased data file.
Wherein, described newly-increased described data file is stored into described storage file under comprise:
Under newly-increased described data file is moved to described storage file.
Wherein, when user occurs that in HBase, data are deleted by mistake, also comprise:
The data file of by mistake deleting is determined in described storage file, and under the described data file of by mistake deleting is moved to Hbase data directory corresponding in HDFS;
The metadata reparation order of calling described Hbase is repaired metadata.
Wherein, also comprise:
When the storage space of the data file stored in described storage file is greater than threshold value, reminding user is cleared up the data file stored in described storage file.
The invention provides a kind of system preventing data mistake deletion in HBase, comprising:
Memory module, for setting the storage file storing deleted data file under HDFS catalogue according to user operation;
Monitoring module, for setting the time cycle of monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file;
If have, then under newly-increased described data file is stored into described storage file by triggering memory module.
Wherein, described monitoring module comprises:
Setup unit, for adding scanning monitoring cache file folder program in start by set date script, and sets the time cycle of scanning monitoring cache file folder program described in start by set date;
Monitoring unit, whether for calling described booting script, scanning described cache file folder according to the described time cycle has newly-increased data file.
Wherein, described memory module specifically for:
Under newly-increased described data file is moved to described storage file.
Wherein, when user occurs that in HBase, data are deleted by mistake, also comprise:
Mobile module, for determining the data file of deleting by mistake, and under the described data file of deleting is moved to Hbase data directory corresponding in HDFS by mistake in described storage file;
Repair module, for the metadata reparation order of calling described Hbase, metadata is repaired.
Wherein, also comprise:
Prompting module, for when the storage space of the data file stored in described storage file is greater than threshold value, reminding user is cleared up the data file stored in described storage file.
The method and system preventing data mistake deletion in HBase provided by the present invention, the method comprises: under HDFS catalogue, set the storage file storing deleted data file according to user operation; The time cycle of setting monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file; If so, under then newly-increased described data file being stored into described storage file;
Due to data in HBase deleted after can be placed on cache file folder in certain hour, therefore the method is by monitoring cache file folder, when finding that there is newly-increased data file, illustrate that user is deleted, under the data file that user deletes is stored in the storage file that user specifies, if when user finds that data are deleted by mistake, under storage file, find corresponding data; Therefore the method can prevent data in HBase from deleting by mistake, greatly reduces the workload of the deleted rear technician of data in HBase.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The process flow diagram preventing the method that data are deleted by mistake in HBase that Fig. 1 provides for the embodiment of the present invention;
The structured flowchart preventing the system that data are deleted by mistake in HBase that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 provide for the embodiment of the present invention another prevent the structured flowchart of the system that data are deleted by mistake in HBase;
The another structured flowchart preventing the system that data are deleted by mistake in HBase that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Core of the present invention is to provide a kind of method and system preventing data in HBase from by mistake deleting, and can prevent data in HBase from deleting by mistake, ensure data integrity in HBase.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the process flow diagram preventing the method that data are deleted by mistake in HBase that Fig. 1 provides for the embodiment of the present invention; The method can comprise:
S100, under HDFS catalogue, set the storage file storing deleted data file according to user operation;
Wherein, storage file here can have user to specify, and the effect of storage file is to store the data file of being deleted by user.
Here under storage file being arranged on HDFS catalogue, data due to Hbase are all kept in data directory corresponding in HDFS, therefore, when finding user misoperation, can quickly and easily the data file that mistake corresponding in storage file is deleted directly be moved in data directory.
The time cycle of s110, setting monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file;
Wherein, according to the deleting mechanism of Hbase table in Hbase, namely after deleting the operation of Hbase table, the metadata of Hbase first can be deleted, then the data of each region (data partition) can be moved to one and be in the file of " archive " i.e. cache file folder here, and the master main thread of last Hbase data can be removed the data in archive after five minutes.Therefore, scanning Hbase data that can be regular are at " archive " file of Hadoop distributed file system HDFS, the time cycle of monitoring here can be determined by user oneself, but is less than the checkout time of cache file folder, such as, be less than 5 minutes here.
Whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file, if do not have, then illustrates that user does not delete data in Hbase, if having, then illustrates that user deletes data in Hbase.First the data file of deleting can be placed in cache file folder.
Wherein, monitor mode here can be determined by user self, can write timing watchdog routine and monitor cache file folder, the crontab order under linux also can be utilized to build start by set date task, preferably, can comprise:
In start by set date script, add scanning monitoring cache file folder program, and set the time cycle of scanning monitoring cache file folder program described in start by set date;
Whether call described booting script, scanning described cache file folder according to the described time cycle has newly-increased data file.
Wherein, can the crontab order under linux that utilize of simple and fast start by set date task be built here.In start by set date script, add scanning monitoring cache file folder program, and set the time cycle of scanning monitoring cache file folder program described in start by set date; Utilize crontab order timing to perform this booting script, cache file folder is monitored.Namely detailed process can be:
In shell instruction arrange retouch monitoring cache file folder program and execution retouch monitoring cache file folder program;
In crontab configuration file, add timing call described shell instruction task, the time cycle that described shell instruction is called in timing is set, refreshes the configuration of crontab.
If s120 has, then under newly-increased described data file being stored into described storage file.
Wherein, the data file of being deleted by user is stored in storage file; Here storage mode can be, after the newly-increased data file in being pressed from both sides by cache file backs up, be stored in storage file; Also can be preferred, under newly-increased described data file is moved to described storage file.Namely direct cache file is pressed from both sides in newly-increased data file move in storage file.Storage space can be saved like this.
Here the running program that newly-increased described data file is stored under described storage file can be arranged in the monitor task of start by set date, also a program can be utilized separately to operate, at this moment need monitor task to trigger this program when finding that there is newly-increased data file.
Can prevent from being missed the data file of deletion by complete deletion by user by said method, cause a large amount of the resuming work of subsequent technology personnel.
Based on technique scheme, what the embodiment of the present invention provided prevents the method that in HBase, data are deleted by mistake, the method is by monitoring cache file folder, when finding that there is newly-increased data file, illustrate that user is deleted, under the data file that user deletes is stored in the storage file that user specifies, if when user finds that data are deleted by mistake, under storage file, find corresponding data; Therefore the method can prevent data in HBase from deleting by mistake, greatly reduces the workload of the deleted rear technician of data in HBase.
Based on technique scheme, when user occurs that in HBase, data are deleted by mistake, also comprise:
The data file of by mistake deleting is determined in described storage file, and under the described data file of by mistake deleting is moved to Hbase data directory corresponding in HDFS;
The metadata reparation order of calling described Hbase is repaired metadata.
Wherein, when the data file of deleting will be recovered by mistake, can directly data file corresponding in storage file be moved in data directory, directly utilize metadata reparation order, data are repaired.Such as, when the table data of Hbase are deleted, the Hbase under the catalogue of HDFS storage file is shown the table data storage area of data mobile to Hbase, the order of calling Hbase reparation metadata is repaired metadata.
Namely the specific implementation process of said method can be:
The storage file of a HDFS is specified also to be storage directory, for storing the table data of the Hbase deleted by user;
In crontab configuration file, add timed task, check Hbase " archive " file under HDFS catalogue is also whether cache file folder has newly-increased file at interval of certain hour; If there is newly-increased file, newly-increased file can be moved to the storage directory that user specifies by timed task.
If user finds that there is Hbase, table is deleted by mistake, and can will show data mobile to Hbase under the corresponding data catalogue of HDFS under assigned catalogue, the metadata reparation order of then calling Hbase is repaired metadata.
Namely the crontab order under linux is utilized to build start by set date task (within 5 minutes), periodic scanning Hbase database " archive " file under HDFS catalogue, if find that there is newly-increased file, then in the assigned catalogue newly-increased file being moved to HDFS and storage file.After Hbase user finds to delete table by mistake, can give the data of loss in storage file under catalogue for change, by the data mobile of loss under the data storage path of Hbase, the metadata reparation order of then calling Hbase is repaired metadata.
Based on above-mentioned any technical scheme, the method can also comprise:
When the storage space of the data file stored in described storage file is greater than threshold value, reminding user is cleared up the data file stored in described storage file.
Wherein, consider the accumulation along with the time, if the overabundance of data that Hbase deletes, the data in the assigned catalogue of HDFS will be very large, needs regular cleaning.The setting of threshold value can be determined according to actual conditions by user.
Here no longer timed task can be set, because if arrange timing clean-up task, just deleted table likely can occur and move to assigned catalogue and speed up again the situation connecing and be timed cleaning.
The process of cleaning is determined to need the data file of deleting to carry out complete deletion by user, or determines the data file that needs to carry out clearing up according to the time.Because time data file the earliest illustrates that the deleted time is very long, still do not find it is the data file of by mistake deleting, therefore, very large may needs exactly carries out deletion data file.Here also can be determined the scheme of cleaning in conjunction with self actual conditions by user.
Here not limiting the concrete form reminded, can be voice reminder, and also can be that light is reminded, also can be display alarm etc.
Based on technique scheme, what the embodiment of the present invention provided prevents the method that in HBase, data are deleted by mistake, the crontab order under linux is utilized to build start by set date task (within 5 minutes), periodic scanning Hbase database " archive " file under HDFS catalogue, if find that there is newly-increased file, then in the assigned catalogue newly-increased file being moved to HDFS and storage file.After Hbase user finds to delete table by mistake, the data of loss can be given under catalogue for change in storage file, by the data mobile of loss under the data storage path of Hbase, the metadata reparation order of then calling Hbase is repaired metadata, and regularly storage file is cleared up, prevent storage file from taking up room greatly, affect distribution and the use of the proper space.The method can prevent data in HBase from deleting by mistake, greatly reduces the workload of the deleted rear technician of data in HBase.
Embodiments provide and prevent the method that in HBase, data are deleted by mistake, can prevent data in HBase from deleting by said method by mistake.
Below the system preventing data in HBase from by mistake deleting that the embodiment of the present invention provides is introduced, the system that in the HBase of preventing described below, data are deleted by mistake with above-described prevent data in HBase from missing the method for deleting can mutual corresponding reference.
Please refer to Fig. 2, the structured flowchart preventing the system that data are deleted by mistake in HBase that Fig. 2 provides for the embodiment of the present invention; This system can comprise:
Memory module 100, for setting the storage file storing deleted data file under HDFS catalogue according to user operation;
Monitoring module 200, for setting the time cycle of monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file;
If have, then under newly-increased described data file is stored into described storage file by triggering memory module 300.
Optionally, described monitoring module 200 comprises:
Setup unit, for adding scanning monitoring cache file folder program in start by set date script, and sets the time cycle of scanning monitoring cache file folder program described in start by set date;
Monitoring unit, whether for calling described booting script, scanning described cache file folder according to the described time cycle has newly-increased data file.
Optionally, described memory module 100 specifically for:
Under newly-increased described data file is moved to described storage file.
Wherein, please refer to Fig. 3, when user occurs that in HBase, data are deleted by mistake, also comprise:
Mobile module 400, for determining the data file of deleting by mistake, and under the described data file of deleting is moved to Hbase data directory corresponding in HDFS by mistake in described storage file;
Repair module 500, for the metadata reparation order of calling described Hbase, metadata is repaired.
Based on above-mentioned any technical scheme, please refer to Fig. 4, this system can also comprise:
Prompting module 600, for when the storage space of the data file stored in described storage file is greater than threshold value, reminding user is cleared up the data file stored in described storage file.
In instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above the method and system that data in the HBase of preventing provided by the present invention are deleted by mistake are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. prevent the method that in HBase, data are deleted by mistake, it is characterized in that, comprising:
Under HDFS catalogue, the storage file storing deleted data file is set according to user operation;
The time cycle of setting monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file;
If have, then under newly-increased described data file being stored into described storage file.
2. the method for claim 1, is characterized in that, the time cycle of described setting monitoring, and according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file, comprising:
In start by set date script, add scanning monitoring cache file folder program, and set the time cycle of scanning monitoring cache file folder program described in start by set date;
Whether call described booting script, scanning described cache file folder according to the described time cycle has newly-increased data file.
3. method as claimed in claim 2, is characterized in that, described newly-increased described data file is stored into described storage file under comprise:
Under newly-increased described data file is moved to described storage file.
4. method as claimed in claim 3, is characterized in that, when user occurs that in HBase, data are deleted by mistake, also comprise:
The data file of by mistake deleting is determined in described storage file, and under the described data file of by mistake deleting is moved to Hbase data directory corresponding in HDFS;
The metadata reparation order of calling described Hbase is repaired metadata.
5. the method as described in any one of Claims 1-4, is characterized in that, also comprises:
When the storage space of the data file stored in described storage file is greater than threshold value, reminding user is cleared up the data file stored in described storage file.
6. prevent the system that in HBase, data are deleted by mistake, it is characterized in that, comprising:
Memory module, for setting the storage file storing deleted data file under HDFS catalogue according to user operation;
Monitoring module, for setting the time cycle of monitoring, according to the described time cycle, whether the cache file folder of monitoring Hbase under HDFS catalogue has newly-increased data file;
If have, then under newly-increased described data file is stored into described storage file by triggering memory module.
7. system as claimed in claim 6, it is characterized in that, described monitoring module comprises:
Setup unit, for adding scanning monitoring cache file folder program in start by set date script, and sets the time cycle of scanning monitoring cache file folder program described in start by set date;
Monitoring unit, whether for calling described booting script, scanning described cache file folder according to the described time cycle has newly-increased data file.
8. system as claimed in claim 7, is characterized in that, described memory module specifically for:
Under newly-increased described data file is moved to described storage file.
9. system as claimed in claim 8, is characterized in that, when user occurs that in HBase, data are deleted by mistake, also comprise:
Mobile module, for determining the data file of deleting by mistake, and under the described data file of deleting is moved to Hbase data directory corresponding in HDFS by mistake in described storage file;
Repair module, for the metadata reparation order of calling described Hbase, metadata is repaired.
10. the system as described in any one of claim 6 to 9, is characterized in that, also comprises:
Prompting module, for when the storage space of the data file stored in described storage file is greater than threshold value, reminding user is cleared up the data file stored in described storage file.
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| CN201510796233.1A CN105243340B (en) | 2015-11-18 | 2015-11-18 | It is a kind of to prevent the method and system that data are accidentally deleted in HBase |
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| CN110188076A (en) * | 2019-05-28 | 2019-08-30 | 厦门市数证科技有限公司 | A kind of method that the concurrent high-speed data of Hadoop file system is deleted completely |
| CN110287159A (en) * | 2019-06-03 | 2019-09-27 | 北京一览群智数据科技有限责任公司 | A kind of document handling method and device |
| CN112597536A (en) * | 2020-12-23 | 2021-04-02 | 瀚高基础软件股份有限公司 | Real-time detection method and device for illegal deletion of database table file |
| CN113489635A (en) * | 2021-06-18 | 2021-10-08 | 深圳软牛科技有限公司 | WeChat-based message recovery method and related equipment |
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| CN106383900A (en) * | 2016-09-29 | 2017-02-08 | 郑州云海信息技术有限公司 | Method and system for preventing mistaken deletion of data files in Sybase database |
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| CN105243340B (en) | 2018-12-07 |
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