CN102779160B - Mass data information index system and index structuring method - Google Patents
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Abstract
The present invention relates to a kind of mass data information index system and construction method, it comprises, and a data distributing server group of planes comprises multiple stage data distributing server, creates data directory server for needing the Data Division created and be distributed to; Create data directory server cluster, comprise multiple stage and create data directory server, the data receiving data distributing server distribution are also data creation index; A retrieval server group of planes, comprises multiple stage retrieval server, receives the index of establishment data directory server establishment and retrieves data directory; Merge result for retrieval server cluster, comprise multiple stage and merge result for retrieval server, receive search condition, receive and merge the result that retrieval server rope goes out.Function according to having needed in Index process is distributed server, avoids robbing resource; Once make mistakes in the process of retrieval, the server can made mistakes according to reason quick position of makeing mistakes, is convenient to maintenance maintenance, reduces maintenance and use cost.
Description
Technical field
The present invention relates to a kind of data directory system and construction method, especially a kind of mass data information index system and index structuring method.
Background technology
Along with progress and the development of technology, data volume is increasing, especially the appearance of cloud concept, and concentrated data volume is huger.In order to find the particular data of needs in vast as the open sea data fast, index has great significance.
Chinese patent literature CN101576915B discloses a kind of distributed B+tree index system and construction method, specifically, comprises master server, a task server group of planes and an index service group of planes and version control server; A task server group of planes comprises multiple task server, and index server cluster comprises multiple index server; Master server is in charge of META data, and carries out load balance scheduling to index server cluster; A task server group of planes is responsible for the transaction controlling to the access of distributed file system index data; The index data of distributed file system is in charge of and is read and write to index server cluster, have effectively achieved the transaction functionality of index data under concurrent environment.
Index is just established in one or more index database server by index technology disclosed in above-mentioned patent documentation, sets up index and search index all performs in one or more index server.Set up index task and search index task to occur in the index database of or multiple stage, the problem of robbing resource may be caused, thus cause index server inadequate resource, impact retrieval or set up the efficiency of index.And the process of retrieval is once go wrong, and also cannot judge which link concrete of tangible retrieval is out of joint, reparation difficulty is large.
Summary of the invention
For this reason, to be solved by this invention is that index function performs the retrieval server inadequate resource that brings and repairs the large technical matters of difficulty in one or more index server, provides a kind of mass data information index system and index structuring method.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of mass data information index system, comprising:
A data distributing server group of planes, comprises multiple stage data distributing server, for needing the Data Division created and distribute;
Create data directory server cluster, comprise multiple stage and create data directory server, each described establishment data directory server receives the data of described data distributing server distribution respectively and is described data creation index;
A retrieval server group of planes, comprises multiple stage retrieval server, receives the described index of described establishment data directory server establishment and retrieves data directory according to search condition;
Merge result for retrieval server cluster, comprise multiple stage and merge result for retrieval server, receive search condition, receive and merge the result that described retrieval server detects.
Each described retrieval server includes a backup area, for backing up the data that this retrieval server retrieves.
Also comprise Backup Data server cluster, comprise multiple stage Backup Data server, receive and back up the data on described data distributing server, described establishment data directory server, described retrieval server and described merging result for retrieval server.
The index type that described establishment data directory server creates is inverted index.
Described data distributing server stores the distribution of document that realizes function of data distribution, and described distribution of document records position and the information of all establishment data directory servers, retrieval server and merging result for retrieval server.
Described distribution of document is XML file.
Meanwhile, a kind of construction method of mass data information index is provided, comprises the steps:
1. retrieval server is divided into data distributing server according to function, creates data directory server, is used for retrieval server and is used for merging result for retrieval server, be equipped with the number of servers of each function according to the calculated amount of the function of retrieval;
2. will the data setting up index be needed to be placed in the form of a file on data distributing server;
Index script is set up in operation, according to creating the quantity of data directory server by file declustering, and is distributed to each establishment data directory server;
3. create data directory server and receive file, and be this file set up index, and merge with the index set up before, finally newly-built index is transferred on retrieval server;
4. search condition is sent to and merges result for retrieval server;
5. search condition is sent on all retrieval servers by result for retrieval server;
6. retrieval server receives search condition and retrieves the index set up, and is returned to by result for retrieval and merges result for retrieval server;
7. merge after result for retrieval server receives all result for retrieval data and carry out data merging, and the result for retrieval after merging is returned to retrieval user.
The step of the data produced in each step of backup is also comprised in described step.
The described step 3. middle index created is inverted index.
Described step 1. in by storing a record data distributing server on data distributing server, creating the distribution of document of data directory server, retrieval server and merging result for retrieval Server location information, realize the division of each server capability.
Distribution of document is XML file, and in implementation, the information of each function, by resolving, is dealt into by SSH technical point on the server that XML file is specified by XML file.
Transmitted by http protocol realization between described each step.
Technique scheme of the present invention has the following advantages compared to existing technology:
Mass data information index system of the present invention and method, the function according to having needed in Index process is distributed server, configures different servers and has been used for different search function, avoid robbing resource; Meanwhile, the responsibility of every station server is made definitely; Customized configuration can be carried out according to the characteristic of difference in functionality to different server cluster, be convenient to improve recall precision; Once make mistakes in the process of retrieval, the server can made mistakes according to reason quick position of makeing mistakes, is convenient to maintenance maintenance, reduces maintenance and use cost.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the mass data information index system of an invention embodiment;
Wherein, Reference numeral is expressed as: 1-data distributing server, and 2-creates data directory server, 3-retrieval server, and 4-merges result for retrieval server.
Embodiment
Shown in Figure 1 is the mass data information index system of one embodiment of the invention, comprises, a data distributing server group of planes, comprises two data distributing servers 1, creates data directory server 2 for needing the Data Division that creates and be distributed to;
Create data directory server cluster, comprise four and create data directory server 2, the data receiving the distribution of described data distributing server 1 are also described data creation inverted index; Wherein, inverted index comes from practical application needs the value according to attribute to search record, each each recording address all comprising a property value and there is this property value in this concordance list, owing to not being determine property value by recording, but the position of record is determined by that value of attribute, be thus inverted index;
A retrieval server group of planes, comprise four retrieval servers 3, receive the described data directory of described establishment data directory server 2 establishment and according to search condition, data directory retrieved, retrieval server 3 described in every platform includes a backup area, for storing the data that this retrieval server 3 retrieves;
Merge result for retrieval server cluster, comprise two and merge result for retrieval servers 4, receive result that described retrieval server 3 rope goes out and described result is merged.
As a distortion of above-described embodiment, this system also comprises Backup Data server cluster, it comprises two Backup Data servers, receive the data on described data distributing server 1, described establishment data directory server 2, described retrieval server 3 and described merging result for retrieval server 4 and back up, described retrieval server 3 does not possess backup functionality, other same above-described embodiments; Can realize object of the present invention equally, belong to protection scope of the present invention.
XML file in above-described embodiment can be YAML (YAMLAin'tMarkupLanguage, meaning YAML is not a kind of markup language) the English full name of file or JSON(is JavaScriptObjectNotation, means data interchange language) file.
The mass data information index system of the above embodiment of the present invention, according to the corresponding number of servers of how many outfits of workload of needs completing difference in functionality, can ensure maximum resource utilization, is convenient to improve recall precision; Meanwhile, difference in functionality is completed it also avoid by different servers and robs resources phenomena; Once make mistakes in the process of retrieval, the server can made mistakes according to reason quick position of makeing mistakes, is convenient to maintenance maintenance, reduces maintenance and use cost; And in the present invention, said system dynamically can increase the server of corresponding function according to the workload of retrieval, and dynamic scalability is strong.
The invention provides a kind of construction method of mass data information index of above-described embodiment, it comprises the steps: simultaneously
1. on data distributing server 1, store the XML file of a record data distributing server 1, establishment data directory server 2, retrieval server 3 and merging result for retrieval server 4 positional information, retrieval server is divided into data distributing server 1 according to function, creates data directory server 2, is used for retrieval server 3 and is used for merging result for retrieval server 4, is equipped with the number of servers of each function according to the calculated amount of the function of retrieval; In the present embodiment, comprise two data distributing servers 1, four and create data directory server 2, four retrieval servers 3, two merging result for retrieval server 4 and two Backup Data servers; In implementation, the information of each function, by resolving, is dealt into by SSH technical point on the server that XML file is specified by XML file; Wherein, XML, English full name is ExtensibleMarkupLanguage, means extend markup language, SSH, and English full name is that SecureShell means the security protocol be based upon on application layer and transport layer basis; Above-mentioned SSH can be existing any one host-host protocol and replaces, such as http host-host protocol, selects that SSH is relatively simple, safety;
2. will the data setting up index be needed to be placed on data distributing server 1 in the form of a file; Index script is set up in operation, is separated by file according to the quantity creating data directory server 2, and every bar data are distributed to each establishment data directory server 2 by the mode that " http " asks; Wherein, http, English full name is hypertexttransportprotocol, means HTTP; Wherein, need the data creating index to carry out format process, on data distributing server 1, specifically define the framework of data, definition needs the column information (comprising title and type) of the data creating index, this is comprising an ID attribute, to distinguish each record; Above-mentioned http also can replace with any one host-host protocol of the prior art, such as ftp; Wherein, ftp, English full name is FileTransferProtocol, means file transfer protocol (FTP);
3. create data directory server 2 and receive file, and be this file set up inverted index, and merge with the index set up before, finally the mode that newly-built index is asked by " http " is transferred on retrieval server 3;
4. search condition is sent to and merges result for retrieval server 4, and wherein, the data needing retrieval must be formatted datas;
5. merging result for retrieval server 4 is sent on all retrieval servers 3 by the mode that search condition is asked by " http ";
6. retrieval server 3 receives search condition and retrieves the index set up, and is returned to by result for retrieval and merges result for retrieval server 4, backed up by result for retrieval simultaneously on retrieval server 3;
7. merge after result for retrieval server 4 receives the result for retrieval data that all " http " respond and carry out data merging, and the result for retrieval after merging is returned to retrieval user.
As a distortion of said method, the data on any one server are when changing, and the index data all will changed, the mode of being asked by " http " is transferred on backup server, to prevent loss of data.
Below in conjunction with a specific embodiment, mass data information index system of the present invention and construction method are described in detail:
Illustrate with the file of an actual needs process, containing 100 data in file, present mass data information index system has five to create data directory server 2, five retrieval servers 3, data distributing server 1 and a merging result for retrieval server 4:
The detailed process that establishment index user sets up index is as follows:
Need to be placed on by file on data distributing server 1, the program that then enters on data distributing server 1 places root directory, and performs and set up index order " shbin/distdaemon.shpost{ places document location } ".
Data distributing server 1 by fill order parameter, can find this file, and by " index fractionation " module, this file declustering is become five parts, and every a " index data block " all can contain 20 data.
After file declustering is completed by " index fractionation " module by data distributing server 1, five parts " index data blocks " can be distributed to successively five and create on data directory server 2.
For single establishment data directory server 2 (all the other processing modes creating data directory server 2 are consistent), receive after data distributing server 1 sends to its " index data block " (wherein containing 20 data) when one of them creates data directory server 2, can will should " index data block " split according to the row name and type that define " framework " (schema) document definition before, obtain the array of similar HASH (meaning a hash) form, such as schema document definition first row is filename (filename), secondary series is file size (filesize), the first row that " index data is fast " obtains is file01, secondary series is 1000M, so can obtain an array " { [0]=>{ ' filename '=> ' file01 ' through Data Division, ' filesize '=> ' 1000M ', [1]=>{ ..., [20]=>{ ... ".
The array of this hash form that can will obtain afterwards, is generated as " arranging data directory " by the row's of falling algorithm.Data layout as hash is { ' 001 '=>{ ' filename '=> ' file01 ', ' filesize '=> ' 1000M ' }, ' 002 '=>{ ' filename '=> ' file02 ', ' filesize '=> ' 1000M ' }, ' 020 '=>{ ' filename '=> ' file20 ', ' filesize '=> ' 1000M ' } }, so be should be { ' filename '=>{ ' file01 '=>{ ' 001 ' } by the form after " fall row " completes, ' file02 '=>{ ' 002 ' }, ' file20 '=>{ ' 020 ' } }, ' filesize '=>{ ' 1000M '=>{ ' 001 ', ' 002 ', ' 020 ' } }, .
After establishment data directory server 2 generates inverted index, newly-established index can be merged in existing index through " merging index ".
Finally the mode of newly-established index by " http " agreement is synchronized in retrieval server 3.
The detailed process of retrieval user search index data is as follows:
Retrieval user is by sending retrieval request to merging result for retrieval server 4, and such as retrieval user sends the All Files that retrieving files size (filesize) is 1000M.Then user can send a http: // { merger-host}/{ port}/{ path}/{ request of fn} q=filesize%3A1000M.
Create after index server receives the request that user sends, this request is sent to respectively five retrieval servers 3 as:
http://{slave-host}/{port}/{path}/{fn}?q=filesize%3A1000M。
For single retrieval server 3 (processing mode of all the other retrieval servers 3 is consistent), after receiving the request creating the transmission of data directory server 2, obtain by analysis request the search condition that filesize equals 1000M.
By retrieve data in this condition to already present " arranging data directory ".Such as can obtain { ' 001 '=>{ ' filename '=> ' file01 ', ' filesize '=> ' 1000M ' }, ' 002 '=>{ ' filename '=> ' file02 ', ' filesize '=> ' 1000M ' }, ' 020 '=>{ ' filename '=> ' file20 ', ' filesize '=> ' 1000M ' } } result, and result is returned to merging result for retrieval server 4.
Merging result for retrieval server 4 obtains the data that five retrieval servers 3 return, by their sequencing by merging etc.
After having merged, result is returned to client, search complete.
Through actual test:
A data distributing server 1 and three establishment data directory servers 2, build 5,000 ten thousand data directories, every bar data probably have 20-30 data characteristics, spend the work that can complete for 30 minutes and create index;
One merges result for retrieval server 4, five retrieval servers 3, has the index of about 100,000,000, and 100 user concurrent retrievals, search condition comprises range of search, sequence complex conditions of Denging, average response is within three seconds.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (12)
1. a mass data information index system, is characterized in that: comprise,
A data distributing server group of planes, comprises multiple stage data distributing server, for needing the Data Division created and distribute;
Create data directory server cluster, comprise multiple stage and create data directory server, each described establishment data directory server receives the data of described data distributing server distribution respectively and is described data creation index, and merge with the index set up before, newly-built index is transferred on retrieval server;
A retrieval server group of planes, comprises multiple stage retrieval server, receives the described index of described establishment data directory server establishment and retrieves data directory according to search condition;
Merge result for retrieval server cluster, comprise multiple stage and merge result for retrieval server, receive and merge the result that described retrieval server detects.
2. a kind of mass data information index system according to claim 1, is characterized in that: each described retrieval server includes a backup area, for backing up the data that this retrieval server retrieves.
3. a kind of mass data information index system according to claim 1, it is characterized in that: also comprise Backup Data server cluster, comprise multiple stage Backup Data server, receive and back up the data on described data distributing server, described establishment data directory server, described retrieval server and described merging result for retrieval server.
4. a kind of mass data information index system according to any one of claim 1-3, is characterized in that: the index type that described establishment data directory server creates is inverted index.
5. a kind of mass data information index system according to any one of claim 1-3, it is characterized in that: described data distributing server stores the distribution of document that realizes function of data distribution, described distribution of document records position and the information of all establishment data directory servers, retrieval server and merging result for retrieval server.
6. a kind of mass data information index system according to claim 5, is characterized in that: described distribution of document is XML file.
7. the construction method of mass data information index system as described in any one of claim 1-6, is characterized in that, comprise the steps:
retrieval server is divided into data distributing server according to function, creates data directory server, retrieval server and merging result for retrieval server, is equipped with the number of servers of each function according to the calculated amount of the function of retrieval;
be placed on needing the data setting up index in the form of a file on data distributing server;
Index script is set up in operation, according to creating the quantity of data directory server by file declustering, and is distributed to each establishment data directory server;
create data directory server and receive file, and be this file set up index, and merge with the index set up before, finally newly-built index is transferred on retrieval server;
search condition is sent to and merges result for retrieval server;
search condition is sent on all retrieval servers by result for retrieval server;
retrieval server receives search condition and retrieves the index set up, and is returned to by result for retrieval and merges result for retrieval server;
merge after result for retrieval server receives all result for retrieval data and carry out data merging, and the result for retrieval after merging is returned to retrieval user.
8. the construction method of mass data information index system according to claim 7, is characterized in that: described step
-
in also comprise the step of data produced in each step of backup.
9. the construction method of the mass data information index system according to claim 7 or 8, is characterized in that: described step
the index of middle establishment is inverted index.
10., according to the construction method of the arbitrary described mass data information index system of claim 7 or 8, it is characterized in that: described step
in by storing a record data distributing server on data distributing server, creating the distribution of document of data directory server, retrieval server and merging result for retrieval Server location information, realize the division of each server capability.
The construction method of 11. mass data information index system according to claim 10, it is characterized in that: distribution of document is XML file, in implementation, the information of each function, by resolving, is dealt into by SSH technical point on the server that XML file is specified by XML file.
The construction method of 12. mass data information index system according to claim 11, is characterized in that: transmitted by http protocol realization between described each step.
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| CN104063376A (en) * | 2013-03-18 | 2014-09-24 | 阿里巴巴集团控股有限公司 | Multi-dimensional grouping operation method and system |
| CN105045684B (en) * | 2015-07-16 | 2018-06-15 | 北京京东尚科信息技术有限公司 | Index switching and the method and device of index control |
| CN106407376B (en) * | 2016-09-12 | 2019-12-20 | 杭州数梦工场科技有限公司 | Index reconstruction method and device |
| CN108572978A (en) * | 2017-03-10 | 2018-09-25 | 深圳瀚德创客金融投资有限公司 | Method and computer system of the structure for the inverted index structure of block chain |
| CN107180113B (en) * | 2017-06-16 | 2020-12-29 | 成都亿橙科技有限公司 | Big data retrieval platform |
| CN109947702A (en) * | 2017-07-26 | 2019-06-28 | 北京嘀嘀无限科技发展有限公司 | Index structuring method and device, electronic equipment |
| CN109033355B (en) * | 2018-07-25 | 2021-07-06 | 北京易观智库网络科技有限公司 | Method, apparatus and storage medium for funnel analysis |
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