CN107402992A - A kind of distributed NewSQL Database Systems and full-text search method for building up - Google Patents

A kind of distributed NewSQL Database Systems and full-text search method for building up Download PDF

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CN107402992A
CN107402992A CN201710580796.6A CN201710580796A CN107402992A CN 107402992 A CN107402992 A CN 107402992A CN 201710580796 A CN201710580796 A CN 201710580796A CN 107402992 A CN107402992 A CN 107402992A
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full
data
text search
user
executive plan
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CN107402992B (en
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晋彤
谭恒亮
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Yunrun Da Data Service Co ltd
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Guangzhou Special Road Mdt Infotech Ltd
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Abstract

The invention discloses a kind of distributed NewSQL Database Systems, including：Control unit, in a manner of database interface accessing user ask, and by the user request be sent to planning unit；Wherein, user's request includes the data field for the full-text search that needs write；Planning unit, for parsing user's request, executive plan corresponding to compiling and generation；Execution unit, for according to executive plan, tables of data to be write using the data field of the full-text search as general character string type；Hbase units, for storing the tables of data；The Hbase units also include the collaboration processing module, the collaboration processing module is used for when the data field of the full-text search writes the tables of data, according to the index data of the description generation inverted index form of the data field of the full-text search, and the index data is written to concordance list；Solr units, for storing the concordance list.

Description

A kind of distributed NewSQL Database Systems and full-text search method for building up
Technical field
The present invention relates to big data technical field, more particularly to a kind of distributed NewSQL Database Systems and full-text search Method for building up.
Background technology
Hbase is one of foremost distributed NoSQL databases in Hadoop ecosystems at present.Its design concept is come Come from Google Bigtable.Hbase primary clusterings include HMaster and HRegionsever, provide the user form class The data model of type, multiple region being divided into by major key scope, HMaster is responsible for and distributed region, HRegionserver is responsible for the read-write of region data.The advantages of Hbase, becomes current most widely used distribution One of NoSQL databases, moved to increasing using trial on Hbase, but Hbase only supports looking into based on major key Ask, do not support full-text search, inconvenience is brought to many applications.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of distributed NewSQL Database Systems and full-text search method for building up, Distributed full-text search is supported by Solr, meets the needs of user creates full-text index.
To achieve the above object, the embodiments of the invention provide a kind of distributed NewSQL Database Systems, including：
Control unit, in a manner of database interface accessing user ask, and by the user request be sent to meter Draw unit；Wherein, user's request includes the data field for the full-text search that needs write；
Planning unit, for parsing user's request, executive plan corresponding to compiling and generation；
Execution unit, for according to executive plan, using the data field of the full-text search as general character string type Write tables of data；
Hbase units, for storing the tables of data；The Hbase units also include the collaboration processing module, described Processing module is cooperateed with to be used for when the data field of the full-text search writes the tables of data, according to the number of the full-text search According to the index data of the description generation inverted index form of field, and the index data is written to concordance list.
Solr units, for storing the concordance list.
Compared with prior art, a kind of distributed NewSQL Database Systems disclosed by the invention, by control unit with The mode accessing user request of database interface, and user request is sent to planning unit；Parsed by planning unit User's request, executive plan corresponding to compiling and generation；By execution unit according to executive plan, by full-text search Tables of data of the data field as general character string type write-in Hbase units；Meanwhile handled by the collaboration of Hbase units Module generates the index data of inverted index form according to the description of the data field of full-text search, and index data is written to The technical scheme of the concordance list of Solr units, solves in the prior art that Hbase only supports the inquiry based on major key, does not support The problem of full-text search, full-text search is established by Solr units, to support distributed full-text search, meet that user creates in full The demand of index, improve Consumer's Experience.
Further, the execution unit is additionally operable to the result of the Hbase units being back to the control list Member；Described control unit is additionally operable to the result returning to user.
Further, in addition to：
Distributed transaction management device, for when being related to affairs in the executive plan, coordinating in the executive plan It is multi-party to complete distributed transaction management.
Further, the database interface is JDBC or ODBC.
The embodiment of the present invention additionally provides a kind of full-text search method for building up, point provided based on the embodiments of the present invention Cloth NewSQL Database Systems, including：
Control unit, accessing user is asked in a manner of database interface, and user request is sent into plan Unit；Wherein, user's request includes the data field for the full-text search that needs write；
The user is parsed by planning unit to ask, executive plan corresponding to compiling and generation；
By execution unit according to executive plan, write the data field of the full-text search as general character string type Enter tables of data；
When the data field of the full-text search writes tables of data, by the collaboration processing modules of Hbase units according to The index data of the description generation inverted index form of the data field of the full-text search, and the index data is written to Concordance list；Wherein, the tables of data is stored in the Hbase units, and the concordance list is stored in the Solr units.
Compared with prior art, a kind of full-text search method for building up disclosed by the invention, by control unit with database The mode accessing user request of interface, and user request is sent to planning unit；The use is parsed by planning unit Family is asked, executive plan corresponding to compiling and generation；By execution unit according to executive plan, by the data word of full-text search Duan Zuowei general characters string type writes the tables of data of Hbase units；Meanwhile the collaboration processing module root for passing through Hbase units According to the index data of the description generation inverted index form of the data field of full-text search, and it is mono- that index data is written into Solr The technical scheme of the concordance list of member, solves in the prior art that Hbase only supports the inquiry based on major key, does not support to examine in full The problem of rope, full-text search is established by Solr units, to support distributed full-text search, meet that user creates full-text index Demand, improve Consumer's Experience.
Further, after the index data being written into concordance list by the collaboration processing module, in addition to：
The result of the Hbase units is back to by described control unit by the execution unit；
The result is returned to user by described control unit.
Further, the execution is coordinated when being related to affairs in the executive plan by distributed transaction management device Multi-party completion distributed transaction management in the works.
Further, the database interface is JDBC or ODBC.
Brief description of the drawings
Fig. 1 is a kind of structural representation for distributed NewSQL Database Systems that the embodiment of the present invention 1 provides；
Fig. 2 is a kind of schematic flow sheet for full-text search method for building up that the embodiment of the present invention 2 provides；
Fig. 3 is to generate executive plan in a kind of step S2 for full-text search method for building up that the embodiment of the present invention 2 provides Schematic flow sheet.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is a kind of structural representation for distributed NewSQL Database Systems that the embodiment of the present invention 1 provides Figure；The concrete structure of the present embodiment includes：
Control unit 1, in a manner of database interface accessing user ask, and it is single that user's request is sent into plan Member 2；Wherein, user's request includes the data field for the full-text search that needs write；
Planning unit 2, for parsing user's request, executive plan corresponding to compiling and generation；
Execution unit 3, for according to executive plan, being write the data field of full-text search as general character string type Tables of data；
Hbase units 4, for storing tables of data；Hbase units 4 also include collaboration processing module 41, cooperate with processing module 41 are used to, when the data field of full-text search writes tables of data, fall to arrange rope according to the description of the data field of full-text search generation Draw the index data of form, and index data is written to concordance list.
Solr units 5, for storing concordance list.
The present embodiment, which is directed to, needs the field of full-text search by index datastore into Solr units 5, by Solr units 5 The function of full-text search is provided.
Further, execution unit 3 is additionally operable to the result of Hbase units 4 being back to control unit 1；Control is single Member 1 is additionally operable to result returning to user.
Further, the present embodiment also includes distributed transaction management device, for when being related to affairs in executive plan, assisting Adjust the multi-party completion distributed transaction management in executive plan.Distributed transaction management device utilizes Java issued transactions API (JTA) Realize distributing real time system and transaction management；Wherein, JTA, i.e. Java Transaction API, JTA allow application program Perform distributing real time system --- access and update the data on two or more network computer resources.
Further, database interface is JDBC or ODBC.
Wherein, planning unit 2 includes for generating the detailed process of executive plan：
Judge to whether there is the prestore SQL statement corresponding with SQL statement in common buffer pool, if so, then output and SQL Executive plan corresponding to sentence, if it is not, then
Syntax check is carried out to SQL statement, if syntax error returns to error message to user, otherwise,
Semantic test is carried out to SQL statement, if semantic error returns to error message to user, otherwise,
View and expression formula conversion, conversion results corresponding to acquisition are carried out to SQL statement；
Optimizer, optimizer selection result corresponding to acquisition are selected according to transformation result；
According to data connection approach and the order of connection corresponding to the selection of optimizer selection result；
According to connected mode and the path of order of connection selection search；
Executive plan is generated according to searching route, and exports executive plan.
Further, the present embodiment also includes monitor, and monitor is connected with control unit 2, and monitor is mainly responsible for member Data management and the load for monitoring bottom hbase Region, avoid specific region load too high, utilize collaboration Processing module 41 redistributes Region.
Metadata, also known as broker data, relaying data, to describe the data of data, mainly describe the letter of data attribute Breath, for supporting such as to indicate storage location, historical data, resource lookup, file record function.
When it is implemented, accessing user asks in a manner of database interface control unit 1, and please by the user Ask and be sent to planning unit 2；The user is parsed by planning unit 2 to ask, executive plan corresponding to compiling and generation；Connect , judged whether according to the content of executive plan to need the intervention of distributed transaction management device by control unit 1, if needed Will, then start distributed transaction management device, the multi-party completion coordinated by distributed transaction management device in executive plan is distributed Transaction management；By execution unit 3 according to executive plan, write the data field of full-text search as general character string type The tables of data of Hbase units；Meanwhile by the collaboration processing modules 41 of Hbase units 4 according to the data field of full-text search Description generates the index data of inverted index form, and index data is written to the concordance list of Solr units 5；Finally return to Result is returned to user by the result of Hbase units 4 to control unit 1 by control unit 1.
The present embodiment solves in the prior art that Hbase only supports the inquiry based on major key, does not support full-text search Problem, full-text search is established by Solr units, to support distributed full-text search, meet that user creates the need of full-text index Ask, improve Consumer's Experience.
Referring to Fig. 2, Fig. 2 is a kind of schematic flow sheet for full-text search method for building up that the embodiment of the present invention 2 provides；This reality The full-text search method for building up for applying the offer of example 2 is the distributed NewSQL Database Systems provided based on above-described embodiment 1, this reality Example 2 is applied to comprise the steps：
S1, control unit 1, accessing user is asked in a manner of database interface, and user's request is sent into plan Unit 2；Wherein, user's request includes the data field for the full-text search that needs write；
S2, user's request, executive plan corresponding to compiling and generation are parsed by planning unit 2；
S3, by execution unit 3 according to executive plan, write the data field of full-text search as general character string type Enter tables of data；
S4, full-text search data field write tables of data when, pass through the collaboration processing module 41 of Hbase units 4 According to the index data of the description generation inverted index form of the data field of full-text search, and index data is written to index Table；Wherein, tables of data is stored in Hbase units 4, and concordance list is stored in Solr units 5.
The present embodiment, which is directed to, needs the field of full-text search by index datastore into Solr units 5, so as to realize energy The function of full-text search is enough provided by Solr units 5, establishes full-text search.
Further, after step S3 is by cooperateing with processing module 41 that index data is written into concordance list, in addition to step Suddenly：
S5, the result of Hbase units 4 is back to by control unit 1 by execution unit 3；
Result is returned to user by S6, control unit 1.
Further, the present embodiment step S2 is completed after generating executive plan, in addition to executive plan is returned into control Unit 1, by control unit 1 after executive plan is received, it is additionally operable to judge whether to need to be distributed according to the content of executive plan The intervention of formula task manager, if it is desired, then start distributed transaction management device, specifically, passing through distributed transaction management Device coordinates the multi-party completion distributed transaction management in executive plan when being related to affairs in executive plan；If it is not required, then Directly perform step S3.
Further, database interface is JDBC or ODBC.
Further, the present embodiment also includes：Metadata is managed by monitor and for monitoring bottom Hbase Region load, specific region load too high is avoided, Region is redistributed using processing module 41 is cooperateed with.
Metadata, also known as broker data, relaying data, to describe the data of data, mainly describe the letter of data attribute Breath, for supporting such as to indicate storage location, historical data, resource lookup, file record function.
Wherein, referring to Fig. 3, Fig. 3 is to be used for the schematic flow sheet that generates executive plan by planning unit 2 in step S2, Specifically include：
S201, judge to whether there is the prestore SQL statement corresponding with SQL statement in common buffer pool, if so, then exporting Executive plan corresponding with SQL statement, if it is not, then
S202, syntax check is carried out to SQL statement, if syntax error returns to error message to user, otherwise,
S203, semantic test is carried out to SQL statement, if semantic error returns to error message to user, otherwise,
S204, view and expression formula conversion, conversion results corresponding to acquisition are carried out to SQL statement；
S205, according to transformation result select optimizer, optimizer selection result corresponding to acquisition；
S206, data connection approach and the order of connection according to corresponding to the selection of optimizer selection result；
S207, the path for selecting to search for according to connected mode and the order of connection；
S208, executive plan generated according to searching route, and export executive plan.
When it is implemented, accessing user asks in a manner of database interface control unit 1, and please by the user Ask and be sent to planning unit 2；The user is parsed by planning unit 2 to ask, executive plan corresponding to compiling and generation；Connect , judged whether according to the content of executive plan to need the intervention of distributed transaction management device by control unit 1, if needed Will, then start distributed transaction management device, the multi-party completion coordinated by distributed transaction management device in executive plan is distributed Transaction management；By execution unit 3 according to executive plan, write the data field of full-text search as general character string type The tables of data of Hbase units；Meanwhile by the collaboration processing modules 41 of Hbase units 4 according to the data field of full-text search Description generates the index data of inverted index form, and index data is written to the concordance list of Solr units 5；Finally return to Result is returned to user by the result of Hbase units 4 to control unit 1 by control unit 1.
The present embodiment solves in the prior art that Hbase only supports the inquiry based on major key, does not support full-text search Problem, full-text search is established by Solr units, to support distributed full-text search, meet that user creates the need of full-text index Ask, improve Consumer's Experience.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (8)

  1. A kind of 1. distributed NewSQL Database Systems, it is characterised in that including：
    Control unit, in a manner of database interface accessing user ask, and it is single that user request is sent into plan Member；Wherein, user's request includes the data field for the full-text search that needs write；
    Planning unit, for parsing user's request, executive plan corresponding to compiling and generation；
    Execution unit, for according to executive plan, being write the data field of the full-text search as general character string type Tables of data；
    Hbase units, for storing the tables of data；The Hbase units also include the collaboration processing module, the collaboration Processing module is used for when the data field of the full-text search writes the tables of data, according to the data word of the full-text search The index data of the description generation inverted index form of section, and the index data is written to concordance list.
    Solr units, for storing the concordance list.
  2. 2. distributed NewSQL Database Systems as claimed in claim 1, it is characterised in that the execution unit be additionally operable to by The result of the Hbase units is back to described control unit；Described control unit is additionally operable to return the result Reuse family.
  3. 3. distributed NewSQL Database Systems as claimed in claim 2, it is characterised in that also include：
    Distributed transaction management device, for when being related to affairs in the executive plan, coordinating multi-party in the executive plan Complete distributed transaction management.
  4. 4. distributed NewSQL Database Systems as claimed in claim 3, it is characterised in that the database interface is JDBC Or ODBC.
  5. A kind of 5. full-text search method for building up, based on the distributed NewSQL databases described in any one of the claims 1~4 System, it is characterised in that including：
    Control unit, accessing user is asked in a manner of database interface, and user request is sent into plan list Member；Wherein, user's request includes the data field for the full-text search that needs write；
    The user is parsed by planning unit to ask, executive plan corresponding to compiling and generation；
    By execution unit according to executive plan, number is write using the data field of the full-text search as general character string type According to table；
    When the data field of the full-text search writes tables of data, by the collaboration processing module of Hbase units according to The index data of the description generation inverted index form of the data field of full-text search, and the index data is written to index Table；Wherein, the tables of data is stored in the Hbase units, and the concordance list is stored in the Solr units.
  6. 6. a kind of full-text search method for building up as claimed in claim 5, it is characterised in that will by the collaboration processing module After the index data is written to concordance list, in addition to：
    The result of the Hbase units is back to by described control unit by the execution unit；
    The result is returned to user by described control unit.
  7. 7. a kind of full-text search method for building up as claimed in claim 6, it is characterised in that worked as by distributed transaction management device When being related to affairs in the executive plan, coordinate the multi-party completion distributed transaction management in the executive plan.
  8. A kind of 8. full-text search method for building up as claimed in claim 7, it is characterised in that the database interface be JDBC or ODBC。
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CN107329837A (en) 2017-11-07
CN107291947B (en) 2020-03-10
CN107480198A (en) 2017-12-15
CN107463637B (en) 2020-05-19
CN107402991B (en) 2020-05-19
CN107402990B (en) 2020-06-09
CN107463632A (en) 2017-12-12
CN106446153A (en) 2017-02-22
CN107402991A (en) 2017-11-28
CN107391653B (en) 2020-05-19
CN107451219A (en) 2017-12-08
CN107402988B (en) 2020-01-03
CN107391653A (en) 2017-11-24
CN107480198B (en) 2020-05-19
CN107451221B (en) 2020-09-04
CN107402987A (en) 2017-11-28
CN107491485A (en) 2017-12-19
CN107291948A (en) 2017-10-24
CN107402989A (en) 2017-11-28
CN107402992B (en) 2020-06-09
CN107451221A (en) 2017-12-08
CN107368575B (en) 2020-06-09
CN107291948B (en) 2020-05-19
CN107491485B (en) 2020-08-04
CN107451214B (en) 2020-05-19
CN107402989B (en) 2020-10-27
CN107402995B (en) 2020-06-09
CN107463632B (en) 2020-06-09
CN107463637A (en) 2017-12-12
CN107463635A (en) 2017-12-12
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CN107402990A (en) 2017-11-28

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