CN111176889A - Automatic backup recovery device and method - Google Patents
Automatic backup recovery device and method Download PDFInfo
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- CN111176889A CN111176889A CN201911267009.8A CN201911267009A CN111176889A CN 111176889 A CN111176889 A CN 111176889A CN 201911267009 A CN201911267009 A CN 201911267009A CN 111176889 A CN111176889 A CN 111176889A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2455—Query execution
- G06F16/24553—Query execution of query operations
- G06F16/24561—Intermediate data storage techniques for performance improvement
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
Abstract
The invention provides an automatic backup recovery device and a method, wherein the device comprises the following modules: the full backup module is used for acquiring data backup from the database to the tape library every week; the incremental backup module is used for acquiring data backup from the database to the tape library every day; the log backup module is used for acquiring data backup from the database to the tape library in real time. The automatic backup and recovery device and method are used for carrying out incremental backup and log backup while carrying out full backup on the database, and can carry out database recovery at a specified time point based on requirements.
Description
Technical Field
The invention relates to the technical field of database backup, in particular to an automatic backup recovery device and method.
Background
The database backup recovery is the last line and the most important line of defense for guaranteeing the safety of the database, and is the only recovery means under the condition that the on-line database has a catastrophic event. The daily operation of backup-to-restore becomes critical. On the premise of ensuring sufficient storage space and not influencing production services, general backups can be divided into full backups, incremental backups and log backups in order to ensure the accuracy of recovery and the timeliness of recovery (recovery to a specified time point) as much as possible.
Therefore, it is desirable to solve the problem of how to better backup a database and how to implement database recovery that can be performed at a specified point in time based on demand.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide an automatic backup and restore apparatus and method, which are used to solve the problem of how to better backup a database and how to implement database restoration at a specified time point based on requirements in the prior art.
To achieve the above and other related objects, the present invention provides an automatic backup and restore apparatus, including the following modules: the full backup module is used for acquiring data backup from the database to the tape library every week; the incremental backup module is used for acquiring data backup from the database to the tape library every day; the log backup module is used for acquiring data backup from the database to the tape library in real time.
In an embodiment of the present invention, the full backup module is configured to acquire data backup from a database to a tape library every week, and includes: the full-quantity backup module comprises a step of acquiring data from a database by adopting an inbackupex unit every week, wherein the inbackupex unit compresses the data into compressed data through a preset compression algorithm, an nc unit is adopted to transmit the compressed data to an intermediate machine through a pipeline, and the intermediate machine transmits the compressed data to the tape library through an nbu service unit.
In an embodiment of the present invention, the incremental backup module is configured to acquire data backup from a database to a tape library every day, and includes: the full-quantity backup module comprises a data acquisition module, a data storage module and a tape library module, wherein the data acquisition module acquires data from the database by adopting an inbobakupex unit every day, the inbobakupex unit compresses the data into compressed data through a preset compression algorithm, an nc unit is adopted to transmit the compressed data to an intermediate machine through a pipeline, and the intermediate machine transmits the compressed data to the tape library through an nbu service unit.
In an embodiment of the present invention, the log backup module is configured to obtain data backup from a database to a tape library in real time, and includes: the log backup module adopts an intermediate machine to acquire the data of the database in real time, and the intermediate machine transmits the data to the tape library through an nbu service unit.
In an embodiment of the present invention, the data is log data of the database.
In an embodiment of the present invention, the intermediate machine obtains the data of the database and stores the data in the designated directory of the intermediate machine.
In order to achieve the above object, the present invention further provides an automated backup recovery method, including the following steps: acquiring data backup from a database to a tape library every week by adopting a full backup module; acquiring data backup from a database to a tape library every day by adopting an incremental backup module; and acquiring data backup from the database to the tape library in real time by adopting a log backup module.
In an embodiment of the present invention, the acquiring data backup from the database to the tape library every week by using the full backup module includes: acquiring data from a database by adopting an inbobakupex unit every week, compressing the data into compressed data by a preset compression algorithm by adopting an nc unit, transmitting the compressed data to an intermediate machine through a pipeline, and transmitting the compressed data to the tape library by the intermediate machine through an nbu service unit.
In an embodiment of the present invention, the acquiring, by the incremental backup module, data backup from the database to the tape library every day includes: the method comprises the steps of acquiring data from a database by adopting an inbobakupex unit every day, compressing the data into compressed data through a preset compression algorithm by adopting the inbobakupex unit, transmitting the compressed data to an intermediate machine through a pipeline by adopting an nc unit, and transmitting the compressed data to the tape library through an nbu service unit by the intermediate machine.
In an embodiment of the present invention, the acquiring, by the log backup module, data backup from the database to the tape library in real time includes: and acquiring the data of the database in real time by adopting an intermediate machine, and transmitting the data to the tape library by the intermediate machine through an nbu service unit.
As described above, the automatic backup recovery apparatus and method of the present invention have the following advantages: the method is used for performing incremental backup and log backup on the database while performing full backup on the database, and can perform database recovery at a specified time point based on requirements.
Drawings
FIG. 1 is a schematic diagram illustrating an application scenario architecture of an automated backup recovery apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram of an embodiment of an automated backup recovery apparatus;
fig. 3 is a flowchart illustrating an automated backup restoration method according to an embodiment of the invention.
Description of the element reference numerals
21 full backup module
22 incremental backup module
23 Log backup module
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, so that the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, the type, quantity and proportion of the components in actual implementation can be changed freely, and the layout of the components can be more complicated.
The automatic backup and recovery device and method are used for carrying out incremental backup and log backup while carrying out full backup on the database, and can carry out database recovery at a specified time point based on requirements.
As shown in fig. 1, the present invention is applied in the application scenario of database automated backup. The data transmission system comprises a database, an intermediate machine and nbu service units, wherein the intermediate machine acquires data from the database, stores the data in the intermediate machine, and transmits the data to a tape library through the nbu service units (nbu server: nbu server, Veritas NetBackup server). Thereby realizing the backup of the database data. Typically the database is a MySQL database. The intermediate machine is mainly used for backup caching and mainly used as a transfer place for streaming backup and recovery.
As shown in fig. 2, in an embodiment, the automated backup restoration apparatus of the present invention includes the following modules:
the full back-up module 21 is used to acquire data back-ups from the database to the tape library every week.
Specifically, the full backup module 21 for acquiring data backup from the database to the tape library every week includes: the full-volume backup module 21 acquires data from a database by using an inbobakuex unit (the inbobakuex unit is a tool for reading data from the database) every week, the inbobakuex unit compresses the data into compressed data through a preset compression algorithm, the nc unit transmits the compressed data to an intermediate machine through a pipeline, and the intermediate machine transmits the compressed data to the tape library through an nbu service unit. Specifically, the preset Compression algorithm is lz4(extreme Fast Compression algorithm) Compression algorithm, the lz4 Compression algorithm is the Compression algorithm which is most efficient in terms of integration at present, the decompression speed is more emphasized, and the Compression ratio is not the first Compression algorithm. In the current android and apple operating systems, the lz4 algorithm is used as a memory compression technology, so that the mobile phone memory is compressed in time to bring more memory space, and time is changed in nature. The nc unit is a tool for transmitting data from A to B, can be used for acquiring files of a server, and can also be used for transmitting files and directories. The intermediate machine is required to initiate backup compression transmission at a database end through the nc unit. The method has the advantages that the physical space of the database is not occupied, and the data is directly compressed and remotely transmitted to the intermediate machine. For example: the method is realized by the following steps:
firstly, realizing:
1. mounting nc
1) Linux System with Centos of yum install nc
2) The Windows System downloads nc.exe and puts the nc.exe under the directory of C \ Windows \ System32
(nc. exe download address https:// eternallly bound. org/misc/netcat /)
2. Obtaining remote server files
1) Server end nc-l port < filename
2) Client nc ip port > filename
Secondly, nc introduces in detail:
want to connect to where nc [ -options ] hostname port [ s ] [ ports ] …
Binding port waiting for connection nc-l-p port [ -options ] [ hostname ] [ port ]
Or the following method is adopted for transmission:
method 1, first the reception of command is started, then the reception of command is started:
step 1, firstly, starting monitoring of a received file on a B machine, wherein the format is as follows:
meaning that the data received at the 10086 port is all written to the file (where the file name is arbitrarily chosen),
nc-l port>file
for example: nc-l 10086> zabbix
Step 2, the A machine sends data to 10086 port of the B machine, the next rpm packet is sent,
nc 192.168.0.2 10086<zabbix.rpm
when the B machine finishes receiving, the B machine automatically quits monitoring, the file size is the same as that of the A machine, the md5 value is the same,
method 2, initiating a send command before initiating an accept command:
step 1, firstly, starting a file sending command on a B machine,
the following command indicates that the abc.txt file is sent through the local 10086 port,
nc-l 10086<abc.txt
step 2, connecting the machine A with the machine B, taking the received file,
the following command indicates that a file is received via the 10086 port of the connected B machine, and stored under this directory, with the file name abc1.txt,
nc 192.168.0.2 10086>abc1.txt
method 3 — transmitting the entire catalog:
step 1, the machine B starts monitoring firstly as follows:
the a machine sends a plurality of files to the B machine,
the transport directory needs to be combined with other commands, such as tar,
the pipeline must be followed last, not by the rest of the custom file names,
nc-l 10086|tar xfvz-
step 2, the machine A packs the file and is connected with the port of the machine B,
the pipe front indicates that all files of the current directory are packaged as-and then sent to the B machine using nc,
tar cfz-*|nc 192.168.0.2 10086
the B machine side will automatically receive and decompress.
And the nc unit transmits the compressed data to the intermediate machine through a pipeline.
The nbu service unit transmits the compressed data to the tape library by means of a call interface. The tape library is a database for storing the compressed data. The tape library is a tape-based backup system like an automatic loading tape drive, and the tape library consists of a plurality of drivers, a plurality of slots and a mechanical arm, and the mechanical arm can automatically realize the dismounting and the loading of the tape.
The incremental backup module 22 is used to obtain data backups from the database to the tape library on a daily basis.
Specifically, the incremental backup module for obtaining a data backup from a database to a tape library on a daily basis includes: the full-quantity backup module comprises a data acquisition module, a data storage module and a tape library module, wherein the data acquisition module acquires data from the database by adopting an inbobakupex unit every day, the inbobakupex unit compresses the data into compressed data through a preset compression algorithm, an nc unit is adopted to transmit the compressed data to an intermediate machine through a pipeline, and the intermediate machine transmits the compressed data to the tape library through an nbu service unit. Because the time interval between the full backup and the incremental backup is larger by adopting the full backup module and the incremental backup module, the full backup module is generally used for backup once a week (or twice a week), and the backup module is used for backup once a day. Therefore, if only the full backup module and the incremental backup module are used for recovery, the recovery precision of the database can only be up to the day level.
The log backup module 23 is used for acquiring data backup from the database to the tape library in real time.
Specifically, the log backup module 23 configured to obtain a data backup from a database to a tape library in real time includes: the log backup module 23 includes an intermediary machine for acquiring the data of the database in real time, and the intermediary machine transmits the data to the tape library through the nbu service unit. Specifically, the intermediate machine acquires the data of the database from the database in real time in a mode of simulating slave. The data is log data of the database, and the log data is binlog log data. Because the time interval between the full backup and the incremental backup is larger by adopting the full backup module and the incremental backup module, the full backup module is generally used for backup once a week (or twice a week), and the backup module is used for backup once a day. Therefore, if only the full backup module and the incremental backup module are used for recovery, the recovery precision of the database can only be up to the day level. And when binlog log data are acquired in real time, minute-level time points can be recovered, and data backup is carried out. Specifically, the intermediate machine acquires data of the database from the database in real time in a manner of simulating slave (transmission of a binlog log is completed in a manner of simulating mysql database backup, a simulation program is loaded on the intermediate machine, and the binlog log can be transmitted to a specified directory of the intermediate machine in real time). And the intermediate machine acquires the data of the database and stores the data to a specified directory of the intermediate machine. The middleware machine transmits the data to the tape library through the nbu service unit, namely, the interface of nbu service unit is called to complete the data transmission to the tape library. Therefore, data backup at minute-level time points can be realized through the full backup module, the incremental backup module and the log backup module, good conditions are created for subsequent data recovery, and the data recovery can be accurate to minutes. And the unified backup and recovery strategy management is realized by setting the full backup module, the incremental backup module and the log backup module. The system comprises a one-key backup module, a full backup module, an incremental backup module and a log backup module, wherein the one-key backup module is used for controlling the full backup module, the incremental backup module and the log backup module to be started, so that one-key backup is realized, and the complexity of manual operation is simplified. By storing the data in the intermediate machine, the integrated streaming type non-landing backup is realized, and the data backup is completed without consuming the storage space of a database. The system further comprises a recovery module, wherein the recovery module is used for recovering the data of the database in the corresponding time period based on the instruction.
As shown in fig. 3, in an embodiment, the automated backup recovery method of the present invention includes the following steps:
step S11: and acquiring data backup from the database to the tape library by using a full backup module every week.
Specifically, the acquiring data backup from the database to the tape library weekly by using the full-volume backup module includes: acquiring data from a database by adopting an inbobakupex unit every week, compressing the data into compressed data by a preset compression algorithm by adopting an nc unit, transmitting the compressed data to an intermediate machine by adopting a nc unit through a pipeline, and transmitting the compressed data to the tape library by the intermediate machine through an nbu service unit
Step S12: and acquiring data backup from the database to the tape library every day by adopting an incremental backup module.
Specifically, the acquiring data backup from the database to the tape library every day by using the incremental backup module includes: the method comprises the steps of acquiring data from a database by adopting an inbobakupex unit every day, compressing the data into compressed data through a preset compression algorithm by adopting the inbobakupex unit, transmitting the compressed data to an intermediate machine through a pipeline by adopting an nc unit, and transmitting the compressed data to the tape library through an nbu service unit by the intermediate machine.
Step S13: and acquiring data backup from the database to the tape library in real time by adopting a log backup module.
Specifically, the acquiring, by the log backup module, data backup from the database to the tape library in real time includes: and acquiring the data of the database in real time by adopting an intermediate machine, and transmitting the data to the tape library by the intermediate machine through an nbu service unit. The data is log data of the database. And the intermediate machine acquires the data of the database and stores the data to a specified directory of the intermediate machine.
It should be noted that the structure and principle of the above steps correspond to the modules in the above automatic backup and restore apparatus one to one, and therefore, the details are not described herein again.
In summary, the automated backup recovery apparatus and method of the present invention are used for performing incremental backup and log backup while performing full backup on a database, and can perform database recovery at a specified time point based on a requirement. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An automated backup restoration apparatus, comprising the following modules:
the full backup module is used for acquiring data backup from the database to the tape library every week;
the incremental backup module is used for acquiring data backup from the database to the tape library every day;
the log backup module is used for acquiring data backup from the database to the tape library in real time.
2. The automated backup restoration apparatus according to claim 1, wherein the full back-up module configured to acquire data backups from a database to a tape library on a weekly basis comprises:
the full-quantity backup module comprises a step of acquiring data from a database by adopting an inbackupex unit every week, wherein the inbackupex unit compresses the data into compressed data through a preset compression algorithm, an nc unit is adopted to transmit the compressed data to an intermediate machine through a pipeline, and the intermediate machine transmits the compressed data to the tape library through an nbu service unit.
3. The automated backup restoration apparatus according to claim 1, wherein the incremental backup module to obtain a data backup from a database to a tape library on a daily basis comprises:
the full-quantity backup module comprises a data acquisition module, a data storage module and a tape library module, wherein the data acquisition module acquires data from the database by adopting an inbobakupex unit every day, the inbobakupex unit compresses the data into compressed data through a preset compression algorithm, an nc unit is adopted to transmit the compressed data to an intermediate machine through a pipeline, and the intermediate machine transmits the compressed data to the tape library through an nbu service unit.
4. The automated backup restoration apparatus according to claim 1, wherein the log backup module for obtaining a data backup from a database to a tape library in real time comprises:
the log backup module adopts an intermediate machine to acquire the data of the database in real time, and the intermediate machine transmits the data to the tape library through an nbu service unit.
5. The automated backup restoration apparatus according to claim 4, wherein the data is log data of the database.
6. The automated backup restoration apparatus according to claim 4, wherein the intermediate machine obtains data of the database and stores the data to a designated directory of the intermediate machine.
7. An automated backup restoration method, characterized in that the device according to any of claims 1 to 6 is used, comprising the following steps:
acquiring data backup from a database to a tape library every week by adopting a full backup module;
acquiring data backup from a database to a tape library every day by adopting an incremental backup module;
and acquiring data backup from the database to the tape library in real time by adopting a log backup module.
8. The automated backup restoration method according to claim 7, wherein the employing a full back-up module to acquire data backups from a database to a tape library weekly comprises:
acquiring data from a database by adopting an inbobakupex unit every week, compressing the data into compressed data by a preset compression algorithm by adopting an nc unit, transmitting the compressed data to an intermediate machine through a pipeline, and transmitting the compressed data to the tape library by the intermediate machine through an nbu service unit.
9. The automated backup restoration method according to claim 7, wherein the obtaining a data backup from a database to a tape library each day with an incremental backup module comprises:
the method comprises the steps of acquiring data from a database by adopting an inbobakupex unit every day, compressing the data into compressed data through a preset compression algorithm by adopting the inbobakupex unit, transmitting the compressed data to an intermediate machine through a pipeline by adopting an nc unit, and transmitting the compressed data to the tape library through an nbu service unit by the intermediate machine.
10. The automated backup restoration method according to claim 7, wherein the obtaining a data backup from a database to a tape library in real time using a journal backup module comprises:
and acquiring the data of the database in real time by adopting an intermediate machine, and transmitting the data to the tape library by the intermediate machine through an nbu service unit.
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