CN104504145A - Method and device capable of achieving database reading and writing separation - Google Patents
Method and device capable of achieving database reading and writing separation Download PDFInfo
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- CN104504145A CN104504145A CN201510003891.0A CN201510003891A CN104504145A CN 104504145 A CN104504145 A CN 104504145A CN 201510003891 A CN201510003891 A CN 201510003891A CN 104504145 A CN104504145 A CN 104504145A
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- database
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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
- G06F16/21—Design, administration or maintenance of databases
Abstract
The invention discloses a method and a device achieving database reading and writing separation. The device is applied to a system including a client, an application host, a main database and an auxiliary database. The method comprises the steps that the application host receives an operation requirement from the client and determines the operation requirement; the application host sends a writing requirement to the main database, receives writing response return by the main database and returns the writing response to the client, if the operation requirement is the writing requirement; the application host sends a reading requirement to the auxiliary database, receives reading response return by the auxiliary database and returns the reading response to the client if the operation requirement is the reading requirement. By means of the method and the device, reading and writing operations on the databases are corresponding to different databases respectively, so that reading and writing separation of the databases is achieved, and the access pressure and IO pressure of the databases can be reduced effectively.
Description
Technical field
The present invention relates to field of computer technology, be specifically related to a kind of method and apparatus of fulfillment database read and write abruption.
Background technology
Database is the conventional data disposal system of a unit or an application, storage be the set of relevant data belonging to enterprise, operating divisions, group or individual.Data in database are set up from the overall point of view, undertaken organizing, describe and storing by certain data model, its structure is based on the associate naturally between data, thus the access path of all necessity can be provided, and data are no longer for a certain application, but towards full tissue, there is overall structured features.The operation requests of database processing generally includes read request and write request.Along with the continuous increase of the data in database, the access pressure of database also can be increasing, causes the treatment effeciency of database and stability to be affected.
Summary of the invention
The invention provides a kind of method and apparatus of fulfillment database read and write abruption, cause treatment effeciency and the affected defect of stability to solve database in prior art because access pressure is excessive.
The invention provides a kind of method of fulfillment database read and write abruption, be applied to and comprise client, applied host machine, master data base and from the system of database, said method comprising the steps of:
Described applied host machine receives the operation requests from described client, judges described operation requests;
If described operation requests is write request, described write request is sent to described master data base by described applied host machine, receives the write response that described master data base returns, and described write response is returned to described client;
If described operation requests is read request, described read request sends to described from database by described applied host machine, receive described return from database read response, read response return to described client by described.
Alternatively, described master data base also comprises after performing write operation according to described write request:
Described master data base and describedly carry out data syn-chronization from database.
Alternatively, described read request sends to described before database by described applied host machine, also comprises:
Described read request, according to the described access pressure from database, is distributed to described from database by described applied host machine.
Alternatively, described read request sends to described after database by described applied host machine, also comprises:
When described applied host machine receives from the described failure message from database, described read request is sent to the described standby host from database by described applied host machine.
Alternatively, described applied host machine also comprises after described read request being sent to the described standby host from database:
When described applied host machine receives the failure message from the described standby host from database, described read request is sent to described master data base by described applied host machine.
Present invention also offers a kind of equipment of fulfillment database read and write abruption, comprising:
Receiver module, for receiving the operation requests from described client;
Judge module, judges for the described operation requests received described receiver module;
Processing module, for when described judge module judges that described operation requests is write request, sends to described master data base by described write request, receives the write response that described master data base returns, described write response is returned to described client; When described judge module judges that described operation requests is read request, described read request is sent to described from database, receive described return from database read response, read response return to described client by described.
Alternatively, described master data base carries out data syn-chronization with described from database after performing write operation according to described write request.
Alternatively, described equipment, also comprises:
Distribution module, for according to the described access pressure from database, distributes to described from database by described read request;
Described processing module, specifically for sending to described read request described in described module assigns from database.
Alternatively, described processing module, also for described read request being sent to described after database, if receive from the described failure message from database, then sends to the described standby host from database by described read request.
Alternatively, described processing module, also for after described read request being sent to the described standby host from database, if described applied host machine receives the failure message from the described standby host from database, then sends to described master data base by described read request.
The embodiment of the present invention corresponds to different databases respectively by the read-write operation of database, the read and write abruption of fulfillment database, effectively can alleviate access pressure and the IO pressure of database.
Accompanying drawing explanation
Fig. 1 is the structural representation of the system of a kind of fulfillment database read and write abruption in the embodiment of the present invention;
Fig. 2 is the method flow diagram of a kind of fulfillment database read and write abruption in the embodiment of the present invention;
Fig. 3 is the device structure schematic diagram of a kind of fulfillment database read and write abruption in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only 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.
It should be noted that, if do not conflicted, each feature in the embodiment of the present invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Embodiments provide a kind of method of fulfillment database read and write abruption, be applied to and comprise client, applied host machine, master data base and from the system of database, as shown in Figure 1, master data base provides write operation, be responsible for relevant real-time query and issued transaction, adopt RAC (Real ApplicationClustering, Real Application Clusters) architecture mode; There is provided read operation from database, be responsible for read-only access, process the aggregate query of non real-time transaction details and form class, adopt and overlap pattern more, be made up of multiple stage database, the data in every platform database are all completely the same with the data in master data base, thus realize the high availability from database.
The method flow of the fulfillment database read and write abruption in the embodiment of the present invention, as shown in Figure 2, comprises the following steps:
Step 101, applied host machine receives the operation requests from client.
Step 102, applied host machine judges operation requests, if operation requests is write request, performs step 103; If operation requests is read request, perform step 104.
Step 103, write request is sent to master data base by applied host machine, receives the write response that master data base returns, write response is returned to client.
It should be noted that, master data base carries out data syn-chronization with master data base after performing write operation according to write request.Particularly, the mode of daily record reproduction is adopted to realize data syn-chronization between master data base and master data base.
Step 104, read request, according to the access pressure from database, is distributed to from database by applied host machine, read request is sent to from database, receive from database return read response, response will be read and return to described client.
Further, read request sends to from after database by applied host machine, if applied host machine receives when the failure message of database, read request is sent to the standby host from database by applied host machine.
Further, after read request is sent to the standby host from database by applied host machine, if applied host machine receives when the failure message of the standby host of database, read request is sent to master data base by applied host machine.
The embodiment of the present invention, after having built database environment, has been configured applied host machine.In default situations, applied host machine is to master data base and the connection carrying out equality from database.
For oracle database, by with the user/user's group given an order needed for creation database:
groupadd dba/oinstall,useradd oracle
Afterwards, by performing following modifying of order systematic parameter:
kernel.shmall＝2097152
kernel.shmmax＝2147483648
kernel.shmmni＝4096
kernel.sem＝25032000100128
fs.file-max＝65536
net.ipv4.ip_local_port_range＝102465000
net.core.rmem_default＝262144
net.core.rmem_max＝262144
net.core.wmem_default＝262144
net.core.wmem_max＝262144
Afterwards, to give an order, dependence bag is installed by performing:
binutils-2.15.92.0.2-10.EL4
compat-db-4.1.25-9
control-center-2.8.0-12
gcc-3.4.3-9.EL4
gcc-c++-3.4.3-9.EL4
glibc-2.3.4-2
glibc-common-2.3.4-2
gnome-libs-1.4.1.2.90-44.1
libstdc++-3.4.3-9.EL4
libstdc++-devel-3.4.3-9.EL4
make-3.80-5
pdksh-5.2.14-30
sysstat-5.0.5-1
xscreensaver-4.18-5.rhel4.2
Afterwards, by performing with the environmental variance of the configure user that gives an order:
ORACLE_SID＝OraDB10g+ASM
export ORACLE_SID
ORACLE_HOME＝/u01/app/oracle/product/10.1.0/asm
export ORACLE_HOME
Finally, perform runinstall script, complete installation by prompting.
Further, after completing installing DB, synchronous between configuration database.
Particularly, following parameter is first revised:
*.DB_UNIQUE_NAME＝′dg_pd′
*.LOG_ARCHIVE_CONFIG＝′DG_CONFIG＝(dg_pd，dg_st)′
*.log_archive_dest_1＝′location＝/u01/archive VALID_FOR＝(ALL_LOGFILES，ALL_ROLES)DB_UNIQUE_NAME＝dg_pd′
*.LOG_ARCHIVE_DEST_2＝′SERVICE＝dg_st ASYNC VALID_FOR＝(ONLINE_LOGFILES，PRIMARY_ROLE)DB_UNIQUE_NAME＝dg_st′
*.LOG_ARCHIVE_DEST_STATE_1＝ENABLE
*.LOG_ARCHIVE_DEST_STATE_2＝ENABLE
*.standby_file_management＝′AUTO′
*.FAL_SERVER＝′dg_st′
*.FAL CLIENT＝′dg pd′
Afterwards, use Backup and Restore software to carry out date restoring, thus realize master data base and from the data syn-chronization between database.
Further, by the connection data storehouse pattern of amendment configuration applied host machine, the read and write abruption of fulfillment database.
Particularly, open failover option, the DataBase combining string in amendment tnsname, and perform to give an order:
net_service_name＝
(DESCRIPTION＝
(FAILOVER＝on)
(ADDRESS＝(PROTOCOL＝tcp)(HOST＝sales1-svr)(PORT＝1521))
(ADDRESS＝(PROTOCOL＝tcp)(HOST＝sales2-svr)(PORT＝1521)))
(CONNECT_DATA＝(SERVICE_NAME＝sales.us.acme.com)))
The embodiment of the present invention corresponds to different databases respectively by the read-write operation of database, the read and write abruption of fulfillment database, effectively can alleviate access pressure and the IO pressure of database.In addition, by master data base and from the data syn-chronization between database, the integrality of database can be ensured.
Based on the method for above-mentioned fulfillment database read and write abruption, the embodiment of the present invention additionally provides a kind of equipment of fulfillment database read and write abruption, as shown in Figure 3, comprising:
Receiver module 210, for receiving the operation requests from client.
Judge module 220, judges for the operation requests received receiver module 210.
Processing module 230, for when judge module 220 judges that operation requests is write request, sends to master data base by write request, receives the write response that master data base returns, write response is returned to client; When judge module 220 judges that operation requests is read request, read request is sent to from database, receive from database return read response, response will be read and return to client.
It should be noted that, master data base carries out data syn-chronization with from database after performing write operation according to write request.
Further, the said equipment, also comprises:
Distribution module 240, for according to the access pressure from database, distributes to read request from database.
Correspondingly, above-mentioned processing module 230, distribute specifically for read request being sent to distribution module 240 from database.
Further, above-mentioned processing module 230, also for read request being sent to from after database, if receive the failure message since database, then sends to the standby host from database by read request.
Further, above-mentioned processing module 230, also for after read request being sent to the standby host from database, if applied host machine receives the failure message since the standby host of database, then sends to master data base by read request.
The embodiment of the present invention corresponds to different databases respectively by the read-write operation of database, the read and write abruption of fulfillment database, effectively can alleviate access pressure and the IO pressure of database.In addition, by master data base and from the data syn-chronization between database, the integrality of database can be ensured.
In conjunction with the software module that the step in the method that embodiment disclosed herein describes 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.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a method for fulfillment database read and write abruption, is characterized in that, is applied to and comprises client, applied host machine, master data base and from the system of database, said method comprising the steps of:
Described applied host machine receives the operation requests from described client, judges described operation requests;
If described operation requests is write request, described write request is sent to described master data base by described applied host machine, receives the write response that described master data base returns, and described write response is returned to described client;
If described operation requests is read request, described read request sends to described from database by described applied host machine, receive described return from database read response, read response return to described client by described.
2. the method for claim 1, is characterized in that, described master data base also comprises after performing write operation according to described write request:
Described master data base and describedly carry out data syn-chronization from database.
3. the method for claim 1, is characterized in that, described read request sends to described before database by described applied host machine, also comprises:
Described read request, according to the described access pressure from database, is distributed to described from database by described applied host machine.
4. the method for claim 1, is characterized in that, described read request sends to described after database by described applied host machine, also comprises:
When described applied host machine receives from the described failure message from database, described read request is sent to the described standby host from database by described applied host machine.
5. method as claimed in claim 4, is characterized in that, described applied host machine also comprises after described read request being sent to the described standby host from database:
When described applied host machine receives the failure message from the described standby host from database, described read request is sent to described master data base by described applied host machine.
6. an equipment for fulfillment database read and write abruption, is characterized in that, comprising:
Receiver module, for receiving the operation requests from described client;
Judge module, judges for the described operation requests received described receiver module;
Processing module, for when described judge module judges that described operation requests is write request, sends to described master data base by described write request, receives the write response that described master data base returns, described write response is returned to described client; When described judge module judges that described operation requests is read request, described read request is sent to described from database, receive described return from database read response, read response return to described client by described.
7. equipment as claimed in claim 6, is characterized in that, described master data base carries out data syn-chronization with described from database after performing write operation according to described write request.
8. equipment as claimed in claim 6, is characterized in that, also comprise:
Distribution module, for according to the described access pressure from database, distributes to described from database by described read request;
Described processing module, specifically for sending to described read request described in described module assigns from database.
9. equipment as claimed in claim 6, is characterized in that,
Described processing module, also for described read request being sent to described after database, if receive from the described failure message from database, then sends to the described standby host from database by described read request.
10. equipment as claimed in claim 9, is characterized in that,
Described processing module, also for after described read request being sent to the described standby host from database, if described applied host machine receives the failure message from the described standby host from database, then sends to described master data base by described read request.
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| CN104834724A (en) * | 2015-05-12 | 2015-08-12 | 广东睿江科技有限公司 | Method and device for synchronizing database |
| CN105718262A (en) * | 2016-01-18 | 2016-06-29 | 沈文策 | Deployment method of LNMP architecture |
| CN105868370A (en) * | 2016-03-31 | 2016-08-17 | 南京烽火软件科技有限公司 | HBase storage device and method for achieving read-write separation |
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| CN106126600A (en) * | 2016-06-21 | 2016-11-16 | 浪潮电子信息产业股份有限公司 | A kind of perform the method for read and write abruption, Apparatus and system |
| CN106372115A (en) * | 2016-08-23 | 2017-02-01 | 成都乾威科技有限公司 | Data reading/writing method and system, and database system |
| CN106649857A (en) * | 2016-12-30 | 2017-05-10 | 北京恒华伟业科技股份有限公司 | Reading and writing separation-based database operation method and apparatus |
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| CN106874281A (en) * | 2015-12-11 | 2017-06-20 | 北京新媒传信科技有限公司 | Realize the method and apparatus that data base read-write is separate |
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| CN107402818A (en) * | 2017-08-04 | 2017-11-28 | 郑州云海信息技术有限公司 | A kind of method and system of read-write on client side caching separation |
| CN107704603A (en) * | 2017-10-16 | 2018-02-16 | 山东浪潮通软信息科技有限公司 | A kind of method and device for realizing read and write abruption |
| CN108182119A (en) * | 2017-11-28 | 2018-06-19 | 腾讯科技（深圳）有限公司 | Read and write abruption control method and device, storage medium and electronic device |
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| CN106815218A (en) * | 2015-11-27 | 2017-06-09 | 华为技术有限公司 | Data bank access method, device and Database Systems |
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| CN105868370A (en) * | 2016-03-31 | 2016-08-17 | 南京烽火软件科技有限公司 | HBase storage device and method for achieving read-write separation |
| CN106021566A (en) * | 2016-05-31 | 2016-10-12 | 浪潮电子信息产业股份有限公司 | Method, device and system for improving concurrent processing capacity of single database |
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| CN106372115A (en) * | 2016-08-23 | 2017-02-01 | 成都乾威科技有限公司 | Data reading/writing method and system, and database system |
| CN106649857A (en) * | 2016-12-30 | 2017-05-10 | 北京恒华伟业科技股份有限公司 | Reading and writing separation-based database operation method and apparatus |
| CN108304406A (en) * | 2017-01-12 | 2018-07-20 | 阿里巴巴集团控股有限公司 | A kind of data base read-write method, apparatus and electronic equipment |
| CN108304406B (en) * | 2017-01-12 | 2022-10-25 | 阿里云计算有限公司 | Database reading and writing method and device and electronic equipment |
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| CN107704603A (en) * | 2017-10-16 | 2018-02-16 | 山东浪潮通软信息科技有限公司 | A kind of method and device for realizing read and write abruption |
| CN108182119A (en) * | 2017-11-28 | 2018-06-19 | 腾讯科技（深圳）有限公司 | Read and write abruption control method and device, storage medium and electronic device |
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