CN101252464B - Dual system and dual system online upgrading method - Google Patents
Dual system and dual system online upgrading method Download PDFInfo
- Publication number
- CN101252464B CN101252464B CN2008101020488A CN200810102048A CN101252464B CN 101252464 B CN101252464 B CN 101252464B CN 2008101020488 A CN2008101020488 A CN 2008101020488A CN 200810102048 A CN200810102048 A CN 200810102048A CN 101252464 B CN101252464 B CN 101252464B
- Authority
- CN
- China
- Prior art keywords
- database
- standby host
- backing sheet
- main frame
- upgrading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention embodiment discloses a dual system and the dual on-line upgrading method. The dual system consists of an upgrading module, a switching module, a host machine and a standby machine. The dual on-line upgrading method includes: the upgrading for the host machine and the standby table corresponding to the main use table in the standby machine database; the upgrading for the application program of the standby machine; the switching for the application program and the database of the host machine and the standby machine; the switching for the main use table and the standby table in the standby machine; and the upgrading for the application program of the host machine. The dual system and the dual on-line upgrading method aim at stopping the outward service providing when switching the host machine and the standby machine as well as switching the main use table and the standby table in the standby machine, the stopping time for the outward service providing is reduced, and the influence for the service normal operation is reduced.
Description
Technical field
The embodiment of the invention relates to the two-shipper technology, relates in particular to the method for a kind of dual systems and two-shipper online upgrading.
Background technology
Along with development of telecom technology, the two-shipper technology is applied in the telecommunications application system as a kind of reliability engineering, must adopt the mode of dual-host backup for the server that stores significant data, to guarantee the safe operation of whole telecommunications application system.In the telecommunications application system, form dual systems by two identical machines of configuration, wherein externally provide the machine of service to be called main frame, another machine that is in Status of Backups is called standby host, when main frame occurs service can not externally be provided unusually, it is unusual that standby host can be judged main frame automatically, and carry out the two-shipper switching, takes over main frame by standby host service externally is provided, wherein, the process of two-shipper switching comprises the switching of application program and the switching of database.Usually in order to improve the reliability of database, this database need be supported dual systems, present most of business database is all supported dual systems, for example the high reliability data of the informix database of IBM Corporation is duplicated (High Availability DataReplication, be called for short HDR) technology, wherein, the database program of main frame externally has the data write authority, two-shipper synchronization mechanism by database during the host data change is given standby host with the real time data synchronization of change, and the database program of standby host externally only has read right, can not initiate data change.
The online upgrading of two-shipper comprises the online upgrading of application program and the online upgrading of database in the practical application, and the method for two-shipper online upgrading is specially in the prior art: 1, the database of upgrading main frame comprises list structure change and/or table data change; 2, the application program of upgrading standby host; 3, switch main frame and standby host, comprise the switching of application program and the switching of database, take over main frame by standby host service externally is provided; 4, the application program of upgrading main frame.
There is following defective in prior art: in whole upgrade process, because the database in the main frame after the upgrading is with the application program of upgrading is not incompatible as yet, main frame can't externally provide service, after having only the application program updating of waiting until standby host, and when taking over main frame, could externally provide service, stop externally to provide the time of service longer.
Because the defective that the method for the two-shipper online upgrading of prior art exists makes its development that is difficult to adapt to new technology, for example, Online Charging System.Online Charging System (Online Charging System, be called for short: OCS) adopted the design of data driven applications program, the step that this application program is carried out and the method for execution all are based on the data configuration in the system, the execution of the variable effect application program by data, this method for designing has improved the flexibility of system, shortened the construction cycle, for cooperating in this kind method for designing, need to adopt memory database to replace common business database simultaneously to improve the access efficiency of data to the frequent access of data.When the OCS online upgrading, because the variation of data can influence the execution of application program, the upgrading of application program and the upgrading of database can not strictly again be distinguished, general incompatible after the database upgrade simultaneously with former application program, therefore in the two-shipper online upgrading process in the OSC system, when the list structure change occurring, the index change, when data variation influences situation such as application program before and after the upgrading, dual systems will stop externally to provide service, could recover after all upgrading is finished etc. application program and database, stop externally to provide the time of service longer, the normal operation of business is caused very big influence.
Summary of the invention
The embodiment of the invention provides the method for a kind of dual systems and two-shipper online upgrading, stop externally to provide service time long defective when overcoming in the prior art two-shipper online upgrading, thereby reduce the time that stops externally to provide service when realizing the two-shipper online upgrading, reduce purpose the influence of the normal operation of business.
The embodiment of the invention provides a kind of dual systems, comprise the upgrading module, handover module, main frame and standby host, be provided with application program and database in described main frame and the standby host, it is characterized in that, be provided with main in the database of described main frame and standby host with table with described main with the corresponding backing sheet of table, lead with table and the corresponding informance of backing sheet and the identification information table of the information that comes into force with storing, described corresponding informance is used to identify main with the corresponding relation of table with backing sheet, the described information of coming into force is used for the sign master and comes into force with hypergene effect or backing sheet, described upgrading module be used for the upgrading backing sheet of database of described main frame and standby host, and the application program of upgrading main frame and standby host, described handover module is used for switching the application program of described main frame and standby host and database and switches the main with table and backing sheet of described standby host according to described corresponding informance and the information of coming into force.
The embodiment of the invention also provides a kind of method of two-shipper online upgrading, comprising:
In the database of main frame and standby host, create with main with the corresponding backing sheet of table;
In the database of main frame and standby host, create the identification information table, store described main in this identification information table with the corresponding informance and the information that comes into force of table with backing sheet, described corresponding informance is used to identify the corresponding relation of master with table and backing sheet, and the described information of coming into force is used for the sign master and comes into force with hypergene effect or backing sheet;
Show corresponding backing sheet with main using in the database of upgrading main frame and standby host;
The upgrade application program of described standby host;
Switch the application program and the database of described main frame and standby host;
Switch main table and the backing sheet used in the described standby host;
The upgrade application program of described main frame.
The embodiment of the invention stops externally to provide service when only the master in switching main frame and standby host and switching standby host is with table and backing sheet, and when the database upgrade of main frame and standby host and during the application program updating of main frame and standby host, this dual systems still can externally provide service, reduced the time that stops externally to provide service, reduced influence the normal operation of business.
Description of drawings
Fig. 1 is the structural representation of dual systems embodiment of the present invention;
Fig. 2 is the flow chart of the method embodiment of two-shipper online upgrading of the present invention;
Fig. 3 is for switching the main flow chart with table and backing sheet in the machine No. 1 among the method embodiment of two-shipper online upgrading of the present invention.
Embodiment
Below by drawings and Examples, the technical scheme of the embodiment of the invention is described in further detail.
Fig. 1 is the structural representation of dual systems embodiment of the present invention, as shown in Figure 1, this dual systems comprises upgrading module, handover module, main frame and standby host, and No. 0 machine is that current main frame, No. 1 machine are standby host in the present embodiment, and No. 0 machine is two machines that configuration is identical with No. 1 machine.Wherein, No. 0 machine is as main frame, and its database can be initiated data change, and gives database as No. 1 machine of standby host by data synchronization mechanism with the data sync of change; And No. 0 machine and No. 1 machine can be given the other side with the application synchronization of change mutually by application synchronization mechanism.Be provided with in the database of No. 0 machine and No. 1 machine main with table, with main with showing corresponding backing sheet and identification information table, the sign information table can be matrix table in the embodiment of the invention, wherein, for the table relevant with upgrading all set up main with table and backing sheet, matrix table stores all masters with showing and the corresponding informance of backing sheet and the information that comes into force, described corresponding informance is used to identify the corresponding relation of master with table and backing sheet, and the described information of coming into force is used for the sign master and comes into force with hypergene effect or backing sheet.When dual systems is upgraded, its upgrading module be used for upgrading backing sheet of database of No. 0 machine and No. 1 machine, and the application program of upgrade No. 0 machine and No. 1 machine, its handover module is used for switching application program and the database and the leading with table and backing sheet according to this corresponding informance and No. 1 machine of the information that comes into force switching of No. 0 machine and No. 1 machine.When application program reads the data of matrix table data designated table, database can inquire the main with table and corresponding backing sheet of this data designated table according to corresponding informance, judge the master according to the information of coming into force again and come into force, promptly the main of data designated table operated with table or backing sheet with hypergene effect or backing sheet.After the application program in No. 0 machine is accepted service request, read the data in No. 0 machine data storehouse, main with table according in No. 0 machine of message reference that comes into force of No. 0 machine data storehouse realized application program to No. 0 machine master visit with table, thereby service externally is provided.
Wherein the structure of matrix table is as follows:
CREATE?TABLE?MATRIXTABLE
MainTableName INTEGER // master uses table name
BakTableName VARCHAR (30) // standby table name
The mark of AVAILFLAG INTEGER // current information that comes into force
Wherein, the AVAILFLAG field is the mark of the current information that comes into force, and its value can be imitated with hypergene for 0 or 1,0 expression is main, and 1 expression backing sheet comes into force.Wherein the backing sheet application programs is sightless, only uses the table name of table during the application access database with the master.Also need in addition corresponding informance and the information of coming into force in No. 0 machine matrix table are read in the internal memory of No. 0 machine, and corresponding informance and the information of coming into force in No. 1 machine matrix table is read in the internal memory of No. 1 machine, so that during the application access database, database reads out the corresponding informance and the information that comes into force from internal memory.
Further, be provided with refresh interface in the database of No. 0 machine, the application program of No. 0 machine is by the refresh notification of refresh interface to database sending metrix table, after database receives refresh notification, upgrade main with table and the corresponding informance of backing sheet and the information that comes into force, and the corresponding informance after will upgrading and the information of coming into force is read in the internal memory of No. 0 machine, replaces the original corresponding informance and the information that comes into force in No. 0 machine internal memory.Also be provided with refresh interface in the database of No. 1 machine, its function is identical with No. 0 machine, repeats no more herein.
Fig. 2 as shown in Figure 2, specifically comprises the steps: for the flow chart of the method embodiment of two-shipper online upgrading of the present invention
Show corresponding backing sheet with main using in the database of step 1, No. 0 machine of upgrading and No. 1 machine;
At first upgrade backing sheet in the database of No. 0 machine is synchronized in No. 1 machine by the backing sheet of data synchronization mechanism after with upgrading in No. 0 machine again, finishes the upgrading of backing sheet in No. 1 machine.
Reach the purpose in upgrading No. 0 machine and No. 1 machine data storehouse by the upgrading backing sheet, No. 0 machine of database access that the application program in escalation process in No. 0 machine can be by No. 0 machine main with table continues externally to provide service.
The application program of step 2, No. 1 machine of upgrading;
During the application program of No. 1 machine of upgrading, stop application synchronization mechanism, No. 0 machine of database access that the application program in No. 0 machine can be by No. 0 machine main with table continues externally to provide service.
The application program and the database of step 3, No. 0 machine of switching and No. 1 machine;
Because the switching of database between No. 0 machine and No. 1 machine, the application program of No. 0 machine can not accessing database, makes dual systems stop externally to provide service in the above-mentioned handoff procedure; Switch in back No. 1 machine database that application program after the upgrading can visit No. 1 machine in No. 1 machine not the main of upgrading operate with showing; This dual systems so initiate data change by No. 1 machine this moment, is given the data of change by data synchronization mechanism the database of No. 0 machine because No. 1 machine can accessing database and this database operated synchronously simultaneously.
Main table and the backing sheet used in step 4, No. 1 machine of switching, Fig. 3 is the main flow chart of using table and backing sheet in No. 1 machine of switching among the method embodiment of two-shipper online upgrading of the present invention, as shown in Figure 3, concrete steps comprise:
Application program in step 41, No. 1 machine is initiated the refresh notification of matrix table to the database in No. 1 machine;
Database root in step 42, No. 1 machine upgrades in matrix table main with the corresponding informance of table with backing sheet according to this refresh notification, be 1 with the flag update of the information that comes into force in the matrix table, and the corresponding informance after will upgrading and the information of coming into force are read in the internal memory of No. 1 machine;
Application program in step 43, No. 1 machine reads the data of database in the machine No. 1, and the database root in No. 1 machine is according to corresponding informance after upgrading in the internal memory of No. 1 machine and the backing sheet in No. 1 machine of message reference that comes into force.
In step 43, be labeled as 1 because of what come into force information, so backing sheet comes into force, wherein, because the backing sheet application programs is sightless, only use the table name of table during the application access database with the master, so when application program need be visited the backing sheet of No. 1 machine, at first visit the database of No. 1 machine, read the data in No. 1 machine data storehouse, the database of No. 1 machine need inquire and mainly conducts interviews with the corresponding backing sheet of table and to backing sheet according to main table name and corresponding informance with table, thereby makes the application program can be by the database access backing sheet, switches the master and uses and show and the purpose of backing sheet to reach.
After master in above-mentioned No. 1 machine is switched with table and backing sheet, the backing sheet of application program in No. 1 machine after the upgrading after by the database access upgrading of No. 1 machine, and backing sheet operated, avoided the incompatible problem of database application programs, this moment, No. 1 machine as standby host switched to main frame, its application program accepts can visit by the database of No. 1 machine after the service request backing sheet of No. 1 machine, and backing sheet is operated, thereby beginning externally provides service.
The application program of step 5, No. 0 machine of upgrading.
After the application program updating of No. 0 machine was finished, the application synchronization mechanism between No. 0 machine and No. 1 machine was recovered, thereby finished the online upgrading of dual systems.
Present embodiment is the once complete escalation process of dual systems, this time realize the upgrading in No. 0 machine and No. 1 machine data storehouse by the backing sheet of upgrade No. 0 machine and No. 1 machine in the escalation process, and making No. 1 machine become current main frame, the backing sheet of No. 1 machine becomes the current table that comes into force.When dual systems is upgraded once more, because No. 1 machine is current main frame, and the backing sheet of No. 1 machine is the current table that comes into force, just need realize the upgrading in No. 1 machine and No. 0 machine data storehouse with table by the main of upgrade No. 1 machine and No. 0 machine this moment, upgrade applications, switching main frame and standby host and switching are main identical with present embodiment with the method for backing sheet with table in the escalation process in addition, repeat no more herein.In other words, during the database of upgrading dual systems, when the master is imitated with hypergene, just need the upgrading backing sheet to realize the upgrading of dual systems database, when backing sheet comes into force, just need the main upgrading that realizes the dual systems database with table of upgrading.
Present embodiment is the method that the dual systems among the dual systems embodiment is realized online upgrading, the method of two-shipper online upgrading can also realize online upgrading to the dual systems that backing sheet and matrix table are not set in the database in the present embodiment, so just need before finishing whole upgrade process, create, be specially: in the database of main frame and standby host, create with main with the corresponding backing sheet of table to tables of data and matrix table; In the database of main frame and standby host, create matrix table, store described main in this matrix table with the corresponding informance and the information that comes into force of table with backing sheet.Wherein, establishment is specially with the corresponding backing sheet of table with main in the database of main frame and standby host: create in the database of main frame and the main corresponding backing sheet of table of using; The backing sheet of creating in the database with described main frame is synchronized in the database of standby host, finishes the establishment of backing sheet in the database of described standby host.Creating matrix table in the database of main frame and standby host is specially: create matrix table in the database of main frame; The matrix table of creating in the database with described main frame is synchronized in the standby host, finishes the establishment of matrix table in the database of described standby host.When the database initial start-up, described main corresponding informance and the information of coming into force with table and backing sheet need be read in the internal memory in addition.
The embodiment of the invention is by backing sheet in the database of main frame and standby host in the upgrading dual systems or the main purpose that reaches upgrade database with table, application program in the upgrading aft engine can be operated database with table or backing sheet by the master in the visit host data base, like this, embodiments of the invention stop externally to provide service when only the master in switching main frame and standby host and switching standby host is with table and backing sheet, and when the database upgrade of main frame and standby host and during the application program updating of main frame and standby host, this dual systems still can externally provide service, reduced the time that stops externally to provide service, reduced influence the normal operation of business.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. dual systems, comprise the upgrading module, handover module, main frame and standby host, be provided with application program and database in described main frame and the standby host, it is characterized in that, be provided with main in the database of described main frame and standby host with table with described main with the corresponding backing sheet of table, lead with table and the corresponding informance of backing sheet and the identification information table of the information that comes into force with storing, described corresponding informance is used to identify main with the corresponding relation of table with backing sheet, the described information of coming into force is used for the sign master and comes into force with hypergene effect or backing sheet, described upgrading module be used for the upgrading backing sheet of database of described main frame and standby host, and the application program of upgrading main frame and standby host, described handover module is used for switching the application program of described main frame and standby host and database and switches the main with table and backing sheet of described standby host according to described corresponding informance and the information of coming into force.
2. dual systems according to claim 1 is characterized in that described database is provided with refresh interface, and described application program sends the refresh notification of described identification information table to this database by described refresh interface.
3. the method for a two-shipper online upgrading is characterized in that, comprising:
In the database of main frame and standby host, create with main with the corresponding backing sheet of table;
In the database of main frame and standby host, create the identification information table, store described main in this identification information table with the corresponding informance and the information that comes into force of table with backing sheet, described corresponding informance is used to identify the corresponding relation of master with table and backing sheet, and the described information of coming into force is used for the sign master and comes into force with hypergene effect or backing sheet;
Show corresponding backing sheet with main using in the database of upgrading main frame and standby host;
The upgrade application program of described standby host;
Switch the application program and the database of described main frame and standby host;
Switch main table and the backing sheet used in the described standby host;
The upgrade application program of described main frame.
4. the method for two-shipper online upgrading according to claim 3 is characterized in that, is specially with the corresponding backing sheet of table with main in the database of described upgrading main frame and standby host:
Backing sheet in the database of upgrading main frame;
Backing sheet after the upgrading in the described main frame is synchronized in the standby host, finishes the upgrading of backing sheet in the described standby host.
5. the method for two-shipper online upgrading according to claim 3 is characterized in that, the described establishment in the database of main frame and standby host with main is specially with the corresponding backing sheet of table:
In the database of main frame, create with main with the corresponding backing sheet of table;
The backing sheet of creating in the database with described main frame is synchronized in the database of standby host, finishes the establishment of backing sheet in the database of described standby host.
6. the method for two-shipper online upgrading according to claim 3 is characterized in that, the described identification information table of creating in the database of main frame and standby host is specially:
In the database of main frame, create the identification information table;
The identification information table of creating in the database with described main frame is synchronized in the standby host, finishes the establishment of sign information table in the database of described standby host.
7. the method for two-shipper online upgrading according to claim 6 is characterized in that, the master in the described standby host of described switching is specially with table and backing sheet:
The database of application program in the standby host in standby host initiated the refresh notification of identification information table;
After database in the standby host receives this refresh notification, upgrade the corresponding informance in the described identification information table and the information that comes into force, and the corresponding informance after will upgrading and the information of coming into force are read in internal memory;
When the application program in the standby host read data of database in the standby host, the database root in the standby host was according to corresponding informance after upgrading in the internal memory of standby host and the backing sheet in the message reference standby host that comes into force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101020488A CN101252464B (en) | 2008-03-17 | 2008-03-17 | Dual system and dual system online upgrading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101020488A CN101252464B (en) | 2008-03-17 | 2008-03-17 | Dual system and dual system online upgrading method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101252464A CN101252464A (en) | 2008-08-27 |
| CN101252464B true CN101252464B (en) | 2011-04-13 |
Family
ID=39955661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101020488A Expired - Fee Related CN101252464B (en) | 2008-03-17 | 2008-03-17 | Dual system and dual system online upgrading method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101252464B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102567064B (en) * | 2012-02-13 | 2015-02-11 | 山西太钢不锈钢股份有限公司 | System upgrading method |
| CN103412780B (en) * | 2013-08-19 | 2017-04-12 | 浪潮(北京)电子信息产业有限公司 | System, device and method for upgrading distributed file system |
| CN106250166B (en) * | 2015-05-21 | 2019-09-20 | 阿里巴巴集团控股有限公司 | A kind of half virtualizes network interface card kernel accelerating module upgrade method and device |
| CN109614398A (en) * | 2018-11-02 | 2019-04-12 | 阿里巴巴集团控股有限公司 | The variation and device of table structure in database |
| CN110895469A (en) * | 2019-11-29 | 2020-03-20 | 深信服科技股份有限公司 | Method and device for upgrading dual-computer hot standby system, electronic equipment and storage medium |
| CN113051342B (en) * | 2019-12-28 | 2023-06-20 | 浙江宇视科技有限公司 | Lightweight double-machine switching method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1581165A (en) * | 2004-05-18 | 2005-02-16 | 中兴通讯股份有限公司 | Method for realizing relation-database automatic upgrading in communication apparatus |
| CN1851657A (en) * | 2005-07-21 | 2006-10-25 | 上海华为技术有限公司 | Dual-machine back-up realizing method and system |
| CN101094102A (en) * | 2007-07-18 | 2007-12-26 | 杭州华三通信技术有限公司 | Main and standby switching method and route standby system for route device |
-
2008
- 2008-03-17 CN CN2008101020488A patent/CN101252464B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1581165A (en) * | 2004-05-18 | 2005-02-16 | 中兴通讯股份有限公司 | Method for realizing relation-database automatic upgrading in communication apparatus |
| CN1851657A (en) * | 2005-07-21 | 2006-10-25 | 上海华为技术有限公司 | Dual-machine back-up realizing method and system |
| CN101094102A (en) * | 2007-07-18 | 2007-12-26 | 杭州华三通信技术有限公司 | Main and standby switching method and route standby system for route device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101252464A (en) | 2008-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101252464B (en) | Dual system and dual system online upgrading method | |
| CN102024022B (en) | Method for copying metadata in distributed file system | |
| CN109189860A (en) | A kind of active and standby increment synchronization method of MySQL based on Kubernetes system | |
| CN100371900C (en) | Method and system for synchronizing data | |
| CN102681917B (en) | A kind of operating system and restorative procedure thereof | |
| CN111427728B (en) | State management method, main/standby switching method and electronic equipment | |
| CN103780638A (en) | Data synchronization method and system | |
| CN101043318B (en) | Method for synchronizing front-background data and apparatus thereof | |
| CN103345470A (en) | Database disaster tolerance method, database disaster tolerance system and server | |
| CN102207879A (en) | Hot-updating method and hot-updating system of Lua script | |
| CN102508881B (en) | Method for clustering multiple nodes of memory database of power information system | |
| CN104881418A (en) | Method and device for quickly reclaiming rollback space in MySQL | |
| CN100512474C (en) | Automatic synchronization method for master-slave board storage version of the communication system | |
| CN103905220A (en) | Data synchronization processing method and system | |
| CN102279857A (en) | Method and system for realizing data reproduction | |
| CN103428288B (en) | Based on the copies synchronized method of subregion state table and coordinator node | |
| CN102045187B (en) | Method and equipment for realizing HA (high-availability) system with checkpoints | |
| CN101155015A (en) | Synchronization method for data and condition between host computer and standby computer | |
| CN103544081B (en) | The management method of double base data server and device | |
| CN106685688A (en) | Cluster computer device synchronous upgrade method | |
| CN105700962A (en) | Data update processing method and apparatus | |
| CN114942965A (en) | Method and system for accelerating synchronous operation of main database and standby database | |
| CN1275476C (en) | Clustering system for utilizing sharing internal memory in mobile communiation system and realizing method thereof | |
| CN101739406A (en) | Method for synchronizing file service operations on double-controller | |
| CN102982033A (en) | Small documents storage method and system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20160317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |