CN101320392A - High-capacity data access method and device of internal memory database - Google Patents
High-capacity data access method and device of internal memory database Download PDFInfo
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- CN101320392A CN101320392A CNA2008101324816A CN200810132481A CN101320392A CN 101320392 A CN101320392 A CN 101320392A CN A2008101324816 A CNA2008101324816 A CN A2008101324816A CN 200810132481 A CN200810132481 A CN 200810132481A CN 101320392 A CN101320392 A CN 101320392A
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Abstract
The invention discloses a method for accessing large-capacity data from a memory database and a device thereof, wherein, the method comprises the following steps: parameter signs required for data entry are set up; an entry registry is distributed, and the parameter signs are registered into the distributed disk registry; according to the entry registry, data records are loaded to a memory data sheet at a specified position; the device comprises a parameter sign setting up unit, a registry distributing unit and a data record loading unit; the method and device of the invention make the searching and positioning of the memory data quick and convenient through the sequence of the memory database, can meet the requirements for real time property and plenty of data of a system, and improve the access performance and reliability of the memory database.
Description
Technical field
The present invention relates to the memory database technology in the communication field, relate in particular to access method and the device of memory database high capacity data record.
Background technology
In IPTV (Web TV) system, USS (Universal Serial Interface Protocol, USB (universal serial bus) agreement) is as the media services node of system, in order to improve the ability of data processing, the real-time of enhanced system has been used memory database.
In the USS system, memory database needs a large amount of dynamic data of access, and the recording capacity of data is very big, whole data capacity often reaches more than several G, data recording also is accompanied by a large amount of dynamic changes around here, need dynamic memory in real time, but also do not have a kind of technology can satisfy the high capacity access requirement of system at present, the access performance of whole memory database and reliability are all lower.
Summary of the invention
In view of above-mentioned analysis, the present invention aims to provide a kind of high-capacity data access method and device of memory database, has memory database access performance and the lower problem of reliability in order to solve in the prior art.
Purpose of the present invention mainly is achieved through the following technical solutions:
The invention provides a kind of high-capacity data access method of memory database, described method comprises:
Steps A: set up the required parameter identification of data deposit;
Step B: distribute the deposit registration table, described parameter identification is registered in the disk registration table of distribution;
Step C:, data recording is loaded in the internal storage data table of assigned address according to described deposit registration table.
Further, described method also comprises:
Step D: periodic monitor deposit data, judge that according to the parameter tags in the deposit registration table when determining to deposit, the data recording that needs are deposited loads in the internal storage data table of assigned address.
Wherein, described parameter identification comprises: deposit mark, capacity, deposit mode, idle queues handle, change sequence, current sequence, the disk sequence that allows the sequence of reading, current operation to write.
Further, described step B specifically comprises:
Distribute and initialization disk registration table memory headroom, file load buffer empty between, idle queues memory headroom, change sequence space, disk sequence memory headroom;
With the handle of the idle queues memory headroom that distributes, the handle of reading the sequence memory headroom, the handle of write sequence memory headroom, the handle of disk sequence memory headroom, and capacity, disk label and deposit mode, be registered in the disk registration table of distribution.
Further, described step C specifically comprises:
Step C1: according to registration content, the storage file name of synthetic deposit usefulness;
Step C2: data recording is read into the file load buffer zone from described storage file, and execution in step C3;
Step C3: according to the disk sequence in the disk registration table, with the data recording of file load buffer zone, be loaded into assigned address the internal storage data table in, and repeated execution of steps C2 finishes up to loading.
Further, among the described step C2, described data recording is specifically comprised from the process that described storage file is read into the file load buffer zone:
Whether the effective length of checking the file load buffer zone satisfies loads needs, if, the data recording of file load buffer zone is moved to log buffer, otherwise, read in the record of residue size from storage file, will load buffer zone and be filled with.
Further, among the described step C3, the process that data recording is loaded into the internal storage data table specifically comprises:
After the validity of specified data record, relatively whether the META information of log buffer record is with the META information unanimity of internal storage data table record, when determining when inconsistent, with the data recording of log buffer according to the synthetic valid memory tables of data record of the META information of internal storage data table record;
According to the disk registration table, obtain the insetion sequence handle of data recording, and the data recording of log buffer is logged in the new null record.
Further, described step D specifically comprises:
Step D1: periodic monitor deposit sequence, and according to registration content, synthetic required storage file name;
Step D2: judge closely that according to the deposit mark of deposit in the registration table when determining to need deposit, the sequence of the needs deposit of obtaining from the deposit registration table is deposited the data recording of the sequence of needs deposit;
Step D3: the sequential recording that will next time need to deposit is in the deposit registration table.
Further, described step D2 specifically comprises:
Whether the minmal sequence value of judging the deposit sequence is 0, when confirming to be not 0, relatively whether the META information of the tables of data that writes down in the storage file is with the META information unanimity that writes down in the internal storage data table, if the two is inconsistent, then the data recording to this sequence identifies;
When determining to splice, the data recording of a plurality of continuous signs is spliced, up to the sequence that remains to be deposited all by stores synchronized in disk.
The present invention also provides a kind of high-capacity data access device of memory database, and described device comprises: parameter identification is set up the unit, is distributed registering unit and data recording loading unit, wherein,
Described parameter identification is set up the unit, is used to set up the required parameter identification of data deposit;
Described distribution registering unit is used for distributing the deposit registration table, and described parameter identification is registered in the disk registration table of distribution;
Described data recording loading unit is used for data recording being loaded in the internal storage data table of assigned address according to described deposit registration table.
Further, described device also comprises:
Detecting unit, be used for periodic monitor deposit data, judge according to the parameter tags in the deposit registration table, when determining to deposit, trigger described data recording loading unit, the data recording that will be needed to deposit by described data recording loading unit loads in the internal storage data table of assigned address.
Beneficial effect of the present invention is as follows: the method for the invention and device are by adopting the sequence of memory database, make that the retrieval location of internal storage data is quick and convenient, can satisfy the real-time of system, the requirement of mass data has improved the access performance and the reliability of memory database.
Other features and advantages of the present invention will be set forth in the following description, and becoming apparent from instructions of part perhaps understood by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the instructions of being write, claims and accompanying drawing.
Description of drawings
Fig. 1 is the schematic flow sheet of the described method of the embodiment of the invention;
Fig. 2 is in the described method of the embodiment of the invention, loads the schematic flow sheet of high capacity data record;
Fig. 3 is in the described method of the embodiment of the invention, record is read into the schematic flow sheet of buffer zone from storage file;
Fig. 4 is in the described method of the embodiment of the invention, loads the schematic flow sheet that records the internal storage data table;
Fig. 5 is in the described method of the embodiment of the invention, the content that dynamic monitoring need be deposited, the schematic flow sheet of storage high capacity data record;
Fig. 6 is in the described method of the embodiment of the invention, according to the schematic flow sheet of sequence with the deposit of the record in the sequence;
Fig. 7 is the structural representation of the described device of the embodiment of the invention.
Embodiment
Specifically describe preferential embodiment of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing constitutes the application's part, and is used from explaination principle of the present invention with embodiments of the invention one.
1 be elaborated at first in conjunction with the accompanying drawings to 6 pairs of described methods of the embodiment of the invention of accompanying drawing.
As shown in Figure 1, Fig. 1 is the schematic flow sheet of the described method of the embodiment of the invention, specifically can comprise the steps:
Step 101: set up the required parameter identification of data deposit, and distribute required deposit registration table;
Step 102:, load high capacity data record according to the deposit registration table;
Step 103: the content that dynamic monitoring need be deposited, storage high capacity data record.
Wherein, specifically can comprise the steps: in the described step 101
Set up the required parameter identification of data deposits, described parameter identification mainly comprises: deposit mark, capacity, deposit mode, idle queues handle, change sequence, the current sequence that allows to read, current sequence, the disk sequence write of allowing;
Distribute and initialization registration table memory headroom, file load buffer empty between, idle queues memory headroom, change sequence space (comprising sequence of reading and the sequence of writing), disk sequence memory headroom;
With the handle of the handle of the handle of the idle queues memory headroom that distributes, the sequence memory headroom read, the sequence memory headroom write, the handle of disk sequence memory headroom, and the parameter identifications such as mark, capacity, deposit mode of depositing, be registered in the deposit registration table of distribution.
As shown in Figure 2, Fig. 2 is in the described step 102, loads the schematic flow sheet of high capacity data record, specifically can may further comprise the steps:
Step 201: according to registration content, synthetic required storage file name;
Step 202: open storage file, read in file header, after the legitimacy of confirming file header, execution in step 203;
Step 203: initialization buffer zone;
Step 204: will write down and be read into buffer zone from storage file;
Step 205:, the record of buffer zone is loaded into the internal storage data table the inside of assigned address according to the disk sequence of record; Circulation carry out step 204, and step 205 is finished until loading.
As shown in Figure 3, Fig. 3 is in the described step 204, will write down the schematic flow sheet that is read into buffer zone from storage file, specifically can may further comprise the steps:
Step 301: check whether load buffer zone residue effective length satisfies, if then execution in step 302, otherwise execution in step 304;
Step 302: will load buffer records and move to log buffer, and execution in step 303;
Step 303: move the record pointer that loads buffer zone, make it to point to the effective record of next bar, and execution in step 307;
Step 304: will load the remaining incomplete record in the buffer zone, move to a position that loads buffer zone, and execution in step 305;
Step 305: move the record pointer that loads buffer zone, and execution in step 306;
Step 306: read in the big or small recorded content of residue from file, will load buffer zone and fill up, and execution in step 307;
Step 307: revise the effective value of buffer zone, finish the loading of a buffered data.
As shown in Figure 4, Fig. 4 is in the step 205, loads the schematic flow sheet that records the internal storage data table, specifically can may further comprise the steps:
Step 401: according to the record-header of log buffer, judge record validity, invalidly directly return;
Step 402: the META information of the record of log buffer (meta-information is used to characterize a category information of the attribute of main memory database table) relatively, whether with the META information unanimity of the record of memory table;
Step 403:, the record of log buffer according to the META information of memory table record, need be synthesized the valid memory table record if inconsistent;
Step 404:, obtain the insetion sequence handle of record according to the deposit registration table;
Step 405: the record vernier of internal memory record is moved to assigned address, append a null record;
Step 406: the record of log buffer is loaded into null record.
As shown in Figure 5, Fig. 5 is described step 201, that is, the content that dynamic monitoring need be deposited, the schematic flow sheet of storage high capacity data record specifically may further comprise the steps:
Step 501: periodic monitor deposit sequence;
Step 502: according to registration content, synthetic required storage file name;
Step 503: judge the deposit mark in the registration table,, then directly return, otherwise open file if do not need deposit;
Step 504: from registration table, obtain the sequence that needs the deposit operation;
Step 505:, the record in the sequence is deposited according to sequence;
Step 506: remove the sequence of having deposited;
Step 507: the sequential recording that will next time need to deposit is in registration table;
As shown in Figure 6, Fig. 6 is a step 505, that is, according to the schematic flow sheet of sequence with the deposit of the record in the sequence, specifically can may further comprise the steps:
Step 601: whether the minmal sequence value of judging the deposit sequence is 0, if be 0, then expression does not have sequence to be deposited, and directly returns.Otherwise the mobile sequence vernier is to the minimum value place;
Step 602: read the META information of the tables of data that writes down in the file header, compare with the META information of the tables of data that writes down in the memory database, check whether the two is consistent, if inconsistent, the value of statistical indicant that the needs deposit is spliced is changed to very;
Step 603: judge the record value that the sequence vernier points to, be record to be deposited; Judge that the record that next sequential value points to also is a record to be deposited,, then see the record that next sequential value points to if the two is adjacent record; Until non-conterminous;
Step 604: judge deposit splicing sign, splicing if desired, the continuous record concatenation that will obtain by step 603 then, otherwise record that directly will be continuous is deposited; Repeated execution of steps 603 and step 604, until all sequences to be deposited all by stores synchronized in disk;
Step 605: repeated execution of steps 603 and step 604;
Step 606: close file, finish this storage operation.
Be elaborated below in conjunction with 7 pairs of described devices of the embodiment of the invention of accompanying drawing.
As shown in Figure 7, Fig. 7 is the structural representation of the described device of the embodiment of the invention, specifically can comprise: parameter identification is set up the unit, is distributed registering unit, data recording loading unit and detecting unit, below each unit is elaborated.
Parameter identification is set up the unit, mainly is responsible for setting up the required parameter identification of data deposit; Described parameter identification mainly comprises: deposit mark, capacity, deposit mode, idle queues handle, change sequence, the current sequence that allows to read, current sequence, the disk sequence write of allowing.
Distribute registering unit, main being responsible for distributed the registration table of depositing, and described parameter identification is registered in the disk registration table of distribution; Be exactly specifically, described distribution registering unit is distributed and initialization registration table memory headroom, file load buffer empty between, idle queues memory headroom, change sequence space (comprising sequence of reading and the sequence of writing), disk sequence memory headroom; Then with the handle of the handle of the handle of the idle queues memory headroom that distributes, the sequence memory headroom read, the sequence memory headroom write, the handle of disk sequence memory headroom, and the parameter identifications such as mark, capacity, deposit mode of depositing, be registered in the deposit registration table of distribution.
The data recording loading unit mainly according to described deposit registration table, is loaded into data recording in the internal storage data table of assigned address; Be exactly that described data recording loading unit synthesizes required storage file name according to registration content specifically; Open storage file then, read in file header, after confirming the legitimacy of file header, the initialization buffer zone, and will write down from storage file and be read into buffer zone; According to the disk sequence of record, the record of buffer zone is loaded into the internal storage data table the inside of assigned address at last; Repeat said process, finish until loading.
Detecting unit, be used for periodic monitor deposit data, judge according to the parameter tags in the deposit registration table, when determining to deposit, trigger described data recording loading unit, the data recording that will be needed to deposit by described data recording loading unit loads in the internal storage data table of assigned address.
For the specific implementation process of said apparatus,, repeat no more owing in said method, be described in detail herein.
In sum, the embodiment of the invention provides a kind of high-capacity data access method and device of memory database, the present invention has realized separating of data storage and data modification insertion by the sequence of memory database, not when data modification inserts, with regard to the synchronous operation memory module, the real-time of the business operation of so effective raising, accelerated the access speed of data, reduced of the coupling of database manipulation module, accelerated the tempo of development and the stabilized speed of the communication system of use memory database with memory database; And created two sequences, make storage and business operation to carry out simultaneously; When loading and storing, used the buffer-stored technology, effectively utilized disk single IO ability; In a word, by the described method of the embodiment of the invention, improved the stability of memory database, real-time for data manipulation.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (11)
1, a kind of high-capacity data access method of memory database is characterized in that, described method comprises:
Steps A: set up the required parameter identification of data deposit;
Step B: distribute the deposit registration table, described parameter identification is registered in the disk registration table of distribution;
Step C:, data recording is loaded in the internal storage data table of assigned address according to described deposit registration table.
2, method according to claim 1 is characterized in that, method according to claim 1 is characterized in that, described method also comprises:
Step D: periodic monitor deposit data, judge that according to the parameter tags in the deposit registration table when determining to deposit, the data recording that needs are deposited loads in the internal storage data table of assigned address.
3, method according to claim 1 and 2 is characterized in that, described parameter identification comprises: deposit mark, capacity, deposit mode, idle queues handle, change sequence, current sequence, the disk sequence that allows the sequence of reading, current operation to write.
4, method according to claim 3 is characterized in that, described step B specifically comprises:
Distribute and initialization disk registration table memory headroom, file load buffer empty between, idle queues memory headroom, change sequence space, disk sequence memory headroom;
With the handle of the idle queues memory headroom that distributes, the handle of reading the sequence memory headroom, the handle of write sequence memory headroom, the handle of disk sequence memory headroom, and capacity, disk label and deposit mode, be registered in the disk registration table of distribution.
5, require 3 described methods according to claim, it is characterized in that, described step C specifically comprises:
Step C1: according to registration content, the storage file name of synthetic deposit usefulness;
Step C2: data recording is read into the file load buffer zone from described storage file, and execution in step C3;
Step C3: according to the disk sequence in the disk registration table, with the data recording of file load buffer zone, be loaded into assigned address the internal storage data table in, and repeated execution of steps C2 finishes up to loading.
6, method according to claim 5 is characterized in that, among the described step C2, described data recording is specifically comprised from the process that described storage file is read into the file load buffer zone:
Whether the effective length of checking the file load buffer zone satisfies loads needs, if, the data recording of file load buffer zone is moved to log buffer, otherwise, read in the record of residue size from storage file, will load buffer zone and be filled with.
7, method according to claim 6 is characterized in that, among the described step C3, the process that data recording is loaded into the internal storage data table specifically comprises:
After the validity of specified data record, relatively whether the META information of log buffer record is with the META information unanimity of internal storage data table record, when determining when inconsistent, with the data recording of log buffer according to the synthetic valid memory tables of data record of the META information of internal storage data table record; Described META information is for characterizing the information of memory database Table Properties;
According to the disk registration table, obtain the insetion sequence handle of data recording, and the data recording of log buffer is logged in the new null record.
8, method according to claim 3 is characterized in that, described step D specifically comprises:
Step D1: periodic monitor deposit sequence, and according to registration content, synthetic required storage file name;
Step D2: judge closely that according to the deposit mark of deposit in the registration table when determining to need deposit, the sequence of the needs deposit of obtaining from the deposit registration table is deposited the data recording of the sequence of needs deposit;
Step D3: the sequential recording that will next time need to deposit is in the deposit registration table.
9, method according to claim 8 is characterized in that, described step D2 specifically comprises:
Whether the minmal sequence value of judging the deposit sequence is 0, when confirming to be not 0, relatively whether the META information of the tables of data that writes down in the storage file is with the META information unanimity that writes down in the internal storage data table, if the two is inconsistent, then the data recording to this sequence identifies;
When determining to splice, the data recording of a plurality of continuous signs is spliced, up to the sequence that remains to be deposited all by stores synchronized in disk.
10, a kind of high-capacity data access device of memory database is characterized in that, described device comprises: parameter identification is set up the unit, is distributed registering unit and data recording loading unit, wherein,
Described parameter identification is set up the unit, is used to set up the required parameter identification of data deposit;
Described distribution registering unit is used for distributing the deposit registration table, and described parameter identification is registered in the disk registration table of distribution;
Described data recording loading unit is used for data recording being loaded in the internal storage data table of assigned address according to described deposit registration table.
11, device according to claim 10 is characterized in that, described device also comprises:
Detecting unit, be used for periodic monitor deposit data, judge according to the parameter tags in the deposit registration table, when determining to deposit, trigger described data recording loading unit, the data recording that will be needed to deposit by described data recording loading unit loads in the internal storage data table of assigned address.
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| CN2008101324816A CN101320392B (en) | 2008-07-17 | 2008-07-17 | High-capacity data access method and device of internal memory database |
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| CN2008101324816A CN101320392B (en) | 2008-07-17 | 2008-07-17 | High-capacity data access method and device of internal memory database |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901270A (en) * | 2010-08-05 | 2010-12-01 | 上海酷吧信息技术有限公司 | Internal memory database method supporting mass memory |
| CN102682043A (en) * | 2011-04-14 | 2012-09-19 | 天脉聚源(北京)传媒科技有限公司 | Method for connecting distributed databases |
| CN102710381A (en) * | 2012-06-07 | 2012-10-03 | 飞天诚信科技股份有限公司 | Data transmission processing method and device |
| CN103067376A (en) * | 2012-12-26 | 2013-04-24 | 北京讯鸟软件有限公司 | Structured query language (SQL) injection attacking protection method based on internal storage |
| CN103761248A (en) * | 2013-12-23 | 2014-04-30 | 远光软件股份有限公司 | Method and system for querying data through main memory database |
| CN103853727A (en) * | 2012-11-29 | 2014-06-11 | 深圳中兴力维技术有限公司 | Method and system for improving large data volume query performance |
| CN105045874A (en) * | 2015-07-17 | 2015-11-11 | 浪潮(北京)电子信息产业有限公司 | Method and apparatus for improving database performance |
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2008
- 2008-07-17 CN CN2008101324816A patent/CN101320392B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101901270A (en) * | 2010-08-05 | 2010-12-01 | 上海酷吧信息技术有限公司 | Internal memory database method supporting mass memory |
| CN102682043A (en) * | 2011-04-14 | 2012-09-19 | 天脉聚源(北京)传媒科技有限公司 | Method for connecting distributed databases |
| CN102682043B (en) * | 2011-04-14 | 2013-11-27 | 天脉聚源(北京)传媒科技有限公司 | Method for connecting distributed databases |
| CN102710381B (en) * | 2012-06-07 | 2015-04-15 | 飞天诚信科技股份有限公司 | Data transmission processing method and device |
| CN102710381A (en) * | 2012-06-07 | 2012-10-03 | 飞天诚信科技股份有限公司 | Data transmission processing method and device |
| CN103853727B (en) * | 2012-11-29 | 2018-07-31 | 深圳中兴力维技术有限公司 | Improve the method and system of big data quantity query performance |
| CN103853727A (en) * | 2012-11-29 | 2014-06-11 | 深圳中兴力维技术有限公司 | Method and system for improving large data volume query performance |
| CN103067376A (en) * | 2012-12-26 | 2013-04-24 | 北京讯鸟软件有限公司 | Structured query language (SQL) injection attacking protection method based on internal storage |
| CN103067376B (en) * | 2012-12-26 | 2017-03-15 | 北京讯鸟软件有限公司 | A kind of SQL injection attacks means of defences based on internal memory |
| CN103761248B (en) * | 2013-12-23 | 2018-04-17 | 远光软件股份有限公司 | The method and system of data query are carried out using memory database |
| CN103761248A (en) * | 2013-12-23 | 2014-04-30 | 远光软件股份有限公司 | Method and system for querying data through main memory database |
| CN105045874A (en) * | 2015-07-17 | 2015-11-11 | 浪潮(北京)电子信息产业有限公司 | Method and apparatus for improving database performance |
| CN105045874B (en) * | 2015-07-17 | 2018-06-12 | 浪潮(北京)电子信息产业有限公司 | A kind of method and device for improving database performance |
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| CN101320392B (en) | 2011-05-11 |
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