CN104636500B - A kind of method and device of inquiry dsc data - Google Patents
A kind of method and device of inquiry dsc data Download PDFInfo
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- CN104636500B CN104636500B CN201510102977.9A CN201510102977A CN104636500B CN 104636500 B CN104636500 B CN 104636500B CN 201510102977 A CN201510102977 A CN 201510102977A CN 104636500 B CN104636500 B CN 104636500B
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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
- G06F16/2453—Query optimisation
- G06F16/24534—Query rewriting; Transformation
- G06F16/24539—Query rewriting; Transformation using cached or materialised query results
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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
- G06F16/24552—Database cache management
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Abstract
The invention discloses a kind of method and devices of inquiry dsc data, and first under real-time monitoring system, server end inquires dsc data in advance, and the dsc data inquired is buffered in the memory of server end；When client carries out dsc data inquiry, the server end executes data query operation in the data cached in advance；Query result is returned to the client.This method can improve the search efficiency and response speed of client, and reduce the inquiry pressure of database.
Description
Be on October 21st, 2014 this application claims the applying date, application No. is 201410561983.6, it is entitled《One
The method of kind inquiry dsc data》Chinese invention patent application priority.
Technical field
The present invention relates to technical field of data processing more particularly to a kind of method and devices of inquiry dsc data.
Background technology
Currently, under the scene of real-time monitoring system, the business datum of newest period usually can be only paid close attention to, according to business
Demand can be nearest 30 minutes, 1 hour nearest, even several hours data recently, and the data that this part is concerned can
To be referred to as dsc data, after dsc data no longer effective property, referred to as cold data.Over time, dsc data can become
Cold data, recently received data become dsc data.Real-time monitoring system often will frequently inquire dsc data, this
Class search request is enable to respond quickly, timely to be shown in real-time monitoring system.
In prior art, client sends out querying condition first, after received server-side to querying condition, will inquire
Condition is assembled into structured query language SQL (Structured Query Language), then is transmitted to database, database
The SQL statement is parsed, returns to query result after taking out data in hard disk, server end passes to visitor after recombinating query result
Family end, but in this scenario, when there are many result data for needing to inquire, when concurrently inquiring very frequent, the inquiry pressure of database
Can be very big, it can not accomplish quick response.
Invention content
The object of the present invention is to provide a kind of method and device of inquiry dsc data, this method can improve looking into for client
Efficiency and response speed are ask, and reduces the inquiry pressure of database.
A method of inquiry dsc data, the method includes：
Under real-time monitoring system, server end inquires dsc data in advance, and the dsc data inquired is buffered in server
In the memory at end；
When client carries out dsc data inquiry, the server end executes data query behaviour in the data cached in advance
Make；
Query result is returned to the client.
A kind of device of inquiry dsc data, described device include：
Data buffer storage unit inquires dsc data under real-time monitoring system in advance, and by the dsc data inquired into
Row caching；
Data query unit, for when client carries out dsc data inquiry, being cached in advance in the data buffer storage unit
Data in execute data query operation；
Query result transmission unit, for returning to query result to client.
As seen from the above technical solution provided by the invention, the above method and device can improve the inquiry of client
Efficiency and response speed, and reduce the inquiry pressure of database.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is provided the method flow schematic diagram of inquiry dsc data by the embodiment of the present invention；
Fig. 2 is the flow diagram of server end timed maintenance buffer area described in the embodiment of the present invention；
Fig. 3 is provided the apparatus structure schematic diagram of inquiry dsc data by the embodiment of the present invention；
Another structural schematic diagram for the inquiry dsc data device that Fig. 4 is provided by the embodiment of the present invention.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
The method of the embodiment of the present invention is directed to real-time monitoring system, and the query time section of client is to pass
Increase, and the query context one of time was scheduled in the period of dsc data life cycle.Below in conjunction with attached drawing to of the invention real
It applies example to be described in further detail, the method flow for providing inquiry dsc data by the embodiment of the present invention as shown in Figure 1 is illustrated
Figure, the method includes：
Step 11：Under real-time monitoring system, server end inquires dsc data in advance, and the dsc data inquired is buffered in
In the memory of server end；
In this step, server end can also may be used by structured query language SQL in advance to data query dsc data
To use other query language to inquire database；Here the dsc data being buffered in server end memory can be sequence and according to
Time incremental data queue, referred to as buffer queue, buffer queue are buffered in the form of cache table in server end memory,
One cache table corresponds to one business unit of storage；And the buffer queue includes having time field, business dimension and index, wherein
Time field is accurate to the second.
Step 12：When client carries out dsc data inquiry, the server end executes number in the data cached in advance
According to inquiry operation；
In this step, when client carries out dsc data inquiry, the server end receives the client hair first
The dsc data inquiry request come contains various query arguments, such as query time, the business unit of inquiry in the inquiry request
And filter condition etc. (such as the data of specific dimension, or whole data)；
Then, the server end parses the inquiry request, and determines inquiry plan；
The server end inquires data according to the inquiry plan in buffer queue；
The query result of acquisition is returned to the client again.
In aforesaid operations, the process that server end inquires data according to the inquiry plan in buffer queue can be with
It is：
Server end determines business unit according to the inquiry request first；
Corresponding cache table is determined in the buffer queue according to the business unit；
Then cache table determined by the business unit is screened according to time range, if there is filter condition then according to
Filter condition screens, and filters out unwanted data, and query result will be used as after the data summarization of same time identical dimensional.
Step 13：Query result is returned to the client.
Pass through above-mentioned operating procedure, so that it may to improve the search efficiency and response speed of client, and reduce database
Inquiry pressure.
For example, above-mentioned query process is illustrated with specific example below：
First, the inquiry request that received server-side client is sent contains query argument in the inquiry request, such as
Can be query time, the business unit of inquiry and filter condition etc., filter condition can be specific dimension data or
It is whole data；
Then, server end parses the inquiry request, determines inquiry plan；
Data, that is, the business according to inquiry are inquired from the buffer queue of the server end further according to inquiry plan
Unit determines corresponding cache table, and is screened according to time range to cache table；Here if there is filter condition is then according to filtering
Conditional filtering filters unwanted data, and query result will be finally used as after the data summarization of same time identical dimensional；
The query result is finally returned into client.
In addition, in the concrete realization, the server end can be with timed maintenance buffer area, by the cold data of failure from institute
It states in buffer area and removes, such client query is just not necessarily to access database, is illustrated in figure 2 described in the embodiment of the present invention and services
The flow diagram of device end timed maintenance buffer area, process are specially：
Step 21：Server end starts a background thread first, periodically executes following steps operation；
It executes frequency and is set as needed, usually several seconds or 10 seconds.
Step 22：The timestamp for inquiring the last item data in the server end buffer queue, the timestamp is subtracted
Remove the start time that a polling cycle is inquired；
Here, in order to reduce the last inquiry incomplete situation of data, the timestamp is subtracted into a polling cycle
The start time that (enquiry frequency) is inquired；And if not having data in buffer queue, the starting point of query time if is system
Time subtracts a time cycle.
Step 23：SQL query statement is generated according to the start time, inquiry request is sent to database, from the number
According to obtaining business datum in library；
Step 24：The business datum is put into the buffer queue；
In this step, if the data of same time identical dimensional have existed in buffer queue, by the industry
In data update to buffer queue of being engaged in, otherwise it is inserted into buffer queue；According to the rule, the data in buffer queue are suitable
Sequence and according to time incremental data queue.
Step 25：The life cycle of dsc data is obtained according to business demand, and the life cycle of caching is set as than institute
The life cycle for stating dsc data is long；
For example, if the life cycle of dsc data is 1 hour, consider the redundancy of data, and the life cached
Period is longer than the life cycle of dsc data, then the life cycle cached can be set as 30 minutes 1 hour.
Step 26：The timestamp is subtracted institute by the timestamp for obtaining the last item data in the buffer queue again
The life cycle for stating caching obtains the end time of cold data；
In this step, the obtained time is also the start time of dsc data.
Step 27：Total data before deleting the end time in the buffer queue, makes the buffer queue
Middle reservation is dsc data entirely.
Based on above-mentioned querying method, the embodiment of the present invention additionally provides a kind of device of inquiry dsc data, as shown in Figure 3
The apparatus structure schematic diagram of inquiry dsc data is provided by the embodiment of the present invention, described device includes：
Data buffer storage unit 31, under real-time monitoring system, inquiring dsc data, and the dsc data that will be inquired in advance
It is cached in advance；
Data query unit 32, for when client carries out dsc data inquiry, delaying in advance in the data buffer storage unit
Data query operation is executed in the data deposited；
Query result transmission unit 33, for returning to query result to client.
It is illustrated in figure 4 another structural schematic diagram for the inquiry dsc data device that the embodiment of the present invention is provided, is counted in Fig. 4
Further comprise having according to query unit 32：
Inquiry request receiving module 321, the dsc data inquiry request sent for receiving client；
Inquiry plan determining module 322 for parsing the inquiry request, and determines inquiry plan；
Data module 323 is inquired, the caching team in the data buffer storage unit 31 according to identified inquiry plan is used for
Data are inquired in row.
Inquiring data module 323 may include：
First determination sub-module, for determining business unit according to the inquiry request；
Second determination sub-module, for determining corresponding cache table in the buffer queue according to the business unit；
Submodule is screened, for being screened according to time range to cache table determined by the business unit, if there is mistake
Filter condition is then screened according to filter condition, filters out unwanted data, and will be after the data summarization of same time identical dimensional
As query result.
And described device may also include：
Cache maintenance unit 34, for the buffer area of data buffer storage unit 31 described in timed maintenance, by the cold data of failure
It is removed from the buffer area.
The cache maintenance unit 34 may include：
Maintenance module periodically executes following operation for starting a background thread：
The timestamp is subtracted a polling cycle and obtained by the timestamp for inquiring the last item data in the buffer queue
To the start time of inquiry；
According to the start time generating structure query language SQL query statement, inquiry request is sent to database, from
Business datum is obtained in the database；
The business datum is put into the buffer queue, if the business datum of same time identical dimensional is in caching team
It has existed in row, then by the service data updating to the buffer queue, is otherwise inserted into the buffer queue；
The life cycle of dsc data is obtained according to business demand, and the life cycle of caching is set as than the dsc data
Life cycle it is long；
The timestamp is subtracted the caching by the timestamp for obtaining the last item data in the buffer queue again
Life cycle obtains the end time of cold data；
Total data before deleting the end time in the buffer queue makes to retain in the buffer queue
It is dsc data entirely.
The specific implementation process of each unit and module is as described in above method embodiment in above-mentioned apparatus.
In conclusion the method, can in server end caching and timed maintenance dsc data through the embodiment of the present invention
The search efficiency and response speed of client are improved, and reduces the inquiry pressure of database.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (10)
1. a kind of method of inquiry dsc data, which is characterized in that the method includes：
Under real-time monitoring system, server end inquires dsc data in advance, and the dsc data inquired is buffered in server end
In memory, specifically include：The timestamp of the last item data in server end buffer queue described in periodic queries, when will be described
Between stamp subtract the start time that a polling cycle inquired；If there is no data in buffer queue, the starting point of query time
It is then that system time subtracts a time cycle；
According to the start time generating structure query language SQL query statement, inquiry request is sent to database, from described
Business datum is obtained in database；
The business datum is put into the buffer queue, if the business datum of same time identical dimensional is in buffer queue
It has existed, then by the service data updating to the buffer queue, is otherwise inserted into the buffer queue；
When client carries out dsc data inquiry, the server end executes data query operation in the data cached in advance；
Query result is returned to the client.
2. the method for inquiring dsc data according to claim 1, which is characterized in that the server end is in the number cached in advance
According to middle execution data query operation, specifically include：
The dsc data inquiry request that client described in the received server-side is sent；
The server end parses the inquiry request, and determines inquiry plan；
The server end inquires data according to the inquiry plan in the buffer queue of the server end.
3. the method for inquiring dsc data according to claim 2, which is characterized in that the server end is counted according to the inquiry
It draws and inquires data in the buffer queue of the server end, specifically include：
The server end determines business unit according to the inquiry request first；
Corresponding cache table is determined in the buffer queue according to the business unit；
Cache table determined by the business unit is screened according to time range, if there is filter condition is then according to filter condition
Screening filters out unwanted data, and will be used as query result after the data summarization of same time identical dimensional.
4. the method for inquiring dsc data according to claim 1, which is characterized in that the method further includes：
The server end timed maintenance buffer area removes the cold data of failure from the buffer area.
5. the method for inquiring dsc data according to claim 4, which is characterized in that the server end timed maintenance caching
The cold data of failure is removed from the buffer area, is specifically included by area：
The server end starts a background thread first, periodically executes following operation：
The life cycle of dsc data is obtained according to business demand, and the life cycle of caching is set as the life than the dsc data
It is long to order the period；
The timestamp is subtracted the life of the caching by the timestamp for obtaining the last item data in the buffer queue again
Period obtains the end time of cold data；
Total data before deleting the end time in the buffer queue, make to retain in the buffer queue is entirely
Dsc data.
6. a kind of device of inquiry dsc data, which is characterized in that described device includes：
Data buffer storage unit, under real-time monitoring system, inquiring dsc data in advance, and the dsc data inquired is delayed
It deposits, specifically includes：The timestamp is subtracted an inquiry week by the timestamp for inquiring the last item data in the buffer queue
The start time that phase is inquired；If not having data in buffer queue, the starting point of query time if is that system time subtracts one
A time cycle；
According to the start time generating structure query language SQL query statement, inquiry request is sent to database, from described
Business datum is obtained in database；
The business datum is put into the buffer queue, if the business datum of same time identical dimensional is in buffer queue
It has existed, then by the service data updating to the buffer queue, is otherwise inserted into the buffer queue；
Data query unit is used for when client carries out dsc data inquiry, in the number that the data buffer storage unit caches in advance
According to middle execution data query operation；
Query result transmission unit, for returning to query result to client.
7. inquiring the device of dsc data according to claim 6, which is characterized in that the data query unit includes：
Inquiry request receiving module, the dsc data inquiry request sent for receiving client；
Inquiry plan determining module for parsing the inquiry request, and determines inquiry plan；
Data module is inquired, for inquiring number in the buffer queue of the data buffer storage unit according to identified inquiry plan
According to.
8. inquiring the device of dsc data according to claim 7, which is characterized in that the inquiry data module includes：
First determination sub-module, for determining business unit according to the inquiry request；
Second determination sub-module, for determining corresponding cache table in the buffer queue according to the business unit；
Submodule is screened, for being screened according to time range to cache table determined by the business unit, if there is filtering rod
Part is then screened according to filter condition, filters out unwanted data, and by conduct after the data summarization of same time identical dimensional
Query result.
9. inquiring the device of dsc data according to claim 6, which is characterized in that described device further includes：
Cache maintenance unit delays the cold data of failure from described for the buffer area of data buffer storage unit described in timed maintenance
It deposits in area and removes.
10. inquiring the device of dsc data according to claim 9, which is characterized in that the cache maintenance unit includes：
Maintenance module for starting a background thread, and periodically executes following operation：
The life cycle of dsc data is obtained according to business demand, and the life cycle of caching is set as the life than the dsc data
It is long to order the period；
The timestamp is subtracted the life of the caching by the timestamp for obtaining the last item data in the buffer queue again
Period obtains the end time of cold data；
Total data before deleting the end time in the buffer queue, make to retain in the buffer queue is entirely
Dsc data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102977.9A CN104636500B (en) | 2014-10-21 | 2015-03-09 | A kind of method and device of inquiry dsc data |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014105619836 | 2014-10-21 | ||
| CN201410561983.6A CN104268286A (en) | 2014-10-21 | 2014-10-21 | Method for querying hot data |
| CN201510102977.9A CN104636500B (en) | 2014-10-21 | 2015-03-09 | A kind of method and device of inquiry dsc data |
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| CN104636500A CN104636500A (en) | 2015-05-20 |
| CN104636500B true CN104636500B (en) | 2018-10-16 |
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| CN201510102977.9A Active CN104636500B (en) | 2014-10-21 | 2015-03-09 | A kind of method and device of inquiry dsc data |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104750715A (en) * | 2013-12-27 | 2015-07-01 | 中国移动通信集团公司 | Data elimination method, device and system in caching system and related server equipment |
| CN106202080A (en) * | 2015-04-30 | 2016-12-07 | 中国移动通信集团公司 | A kind of webpage rendering intent, server and terminal unit |
| CN105468707A (en) * | 2015-11-19 | 2016-04-06 | 北京锐安科技有限公司 | Cache-based data processing method and device |
| CN106776632A (en) * | 2015-11-23 | 2017-05-31 | 北京国双科技有限公司 | Data query method and device |
| CN105808661B (en) * | 2016-02-29 | 2019-03-08 | 浪潮天元通信信息系统有限公司 | A kind of method and device of data query |
| CN106776921B (en) * | 2016-11-30 | 2020-10-09 | 天脉聚源（北京）科技有限公司 | Method and device for processing query |
| CN107463514B (en) * | 2017-08-16 | 2021-06-29 | 郑州云海信息技术有限公司 | Data storage method and device |
| CN108197289B (en) * | 2018-01-18 | 2021-09-14 | 吉浦斯信息咨询（深圳）有限公司 | Data storage structure, data storage query method, terminal and medium |
| CN109063086A (en) * | 2018-07-26 | 2018-12-21 | 中兴飞流信息科技有限公司 | Execution method, apparatus, server and the storage medium of structured query language |
| CN110795395B (en) * | 2018-07-31 | 2023-04-18 | 阿里巴巴集团控股有限公司 | File deployment system and file deployment method |
| CN109358805B (en) * | 2018-09-03 | 2021-11-30 | 中新网络信息安全股份有限公司 | Data caching method |
| CN109274760A (en) * | 2018-10-19 | 2019-01-25 | 西安瑜乐文化科技股份有限公司 | A kind of cold and hot data resolution method of Mobile Development |
| CN113779426A (en) * | 2020-06-10 | 2021-12-10 | 深圳云天励飞技术有限公司 | Data storage method and device, terminal equipment and storage medium |
| CN112231317B (en) * | 2020-09-25 | 2023-05-09 | 浙江三维通信科技有限公司 | Data query method, device, electronic device and storage medium |
| CN112699142A (en) * | 2020-12-29 | 2021-04-23 | 平安普惠企业管理有限公司 | Cold and hot data processing method and device, electronic equipment and storage medium |
| CN113254477A (en) * | 2021-06-04 | 2021-08-13 | 威讯柏睿数据科技(北京)有限公司 | Data acquisition method and equipment based on memory |
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| CN103177005A (en) * | 2011-12-21 | 2013-06-26 | 深圳市腾讯计算机系统有限公司 | Processing method and system of data access |
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| US6950823B2 (en) * | 2002-12-23 | 2005-09-27 | International Business Machines Corporation | Transparent edge-of-network data cache |
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| CN103177005A (en) * | 2011-12-21 | 2013-06-26 | 深圳市腾讯计算机系统有限公司 | Processing method and system of data access |
| CN103514106A (en) * | 2012-06-20 | 2014-01-15 | 北京神州泰岳软件股份有限公司 | Method for caching data |
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Denomination of invention: Method and device for querying heat data Effective date of registration: 20190531 Granted publication date: 20181016 Pledgee: Shenzhen Black Horse World Investment Consulting Co., Ltd. Pledgor: Beijing Guoshuang Technology Co.,Ltd. Registration number: 2019990000503 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |