CN111191094A - CEPH storage object searching method and device and storage device - Google Patents
CEPH storage object searching method and device and storage device Download PDFInfo
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- G06F16/90—Details of database functions independent of the retrieved data types
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Abstract
The invention relates to the technical field of storage, in particular to a CEPH storage object searching method, a CEPH storage object searching device and a CEPH storage object searching storage device. The invention inquires the object metadata information by calling CEPH RGW API, and stores the object by classifying and listing according to the user, the barrel and the object, and inquires the object for the application by providing the REST API interface. The query efficiency is improved by classifying and sorting the table according to the user, the bucket and the object, and fuzzy and paging query can be provided by entering the bucket according to the user and then entering the object hierarchical index. Based on REST API protocol and database storage, the application cost and the secondary development cost are greatly reduced.
Description
Technical Field
The invention relates to the technical field of storage, in particular to a CEPH storage object searching method, a CEPH storage object searching device and a CEPH storage object searching storage device.
Background
The Ceph is a reliable, automatic rebalancing and automatic recovery distributed storage system, and can be divided into three blocks according to scene division, namely object storage, block equipment and file system service. The Ceph has the main advantages that distributed storage is adopted, the data storage position can be obtained through calculation when each piece of data is stored, the data distribution is balanced as much as possible, the traditional problem of single point failure does not exist, and horizontal expansion can be achieved.
Although CEPH is currently well supporting object storage, where users can manipulate buckets, objects, and retrieve objects through the S3 API interface, CEPH itself does not support the functionality of object searching. For the object search function, the elastic search can be solved by the following two schemes:
1. the front-end application uploads the object into CEPH RGW and sends the custom metadata of this object into the ElasticSearch. And providing an ElasticSearch general interface externally, and sending a query request to the ElasticSearch to acquire an object when a user needs to acquire certain object information.
2. Through the CEPH RGW synchronization plug-in, object metadata is synchronized into the ElasticSearch when the front-end application uploads objects into the CEPH RGW. And providing an ElasticSearch general interface externally, and sending a query request to the ElasticSearch to acquire an object when a user needs to acquire certain object information.
However, both of the above solutions have problems, such as: 1. the elastic search is directly synchronized object metadata, and does not index data. Fuzzy, paged queries cannot be supported. 2. The ElasticSearch deployment is costly and not easy to maintain. 3. The ElasticSearch must be deployed independently and does not support integration with applications.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a CEPH storage object searching method, a CEPH storage object searching device and a CEPH storage object searching storage device.
In one aspect, the present invention provides a CEPH storage object searching method applied to a storage device, where the method includes:
sending an object uploading request to the CEPH RGW through an CEPH RGW API interface, uploading the object to the CEPH RGW, and returning object information after the object is uploaded successfully; querying object metadata information through an CEPH REST API interface provided by CEPH RGW, the object metadata information including a user, a bucket, an object type, an object name, a creation time and size, and the like; respectively storing the metadata of the object into a database according to the content in the metadata information of the object; and performing metadata query on the object according to the content in the object metadata information through an CEPH RESTAPI interface, and returning the queried metadata so as to query the object to be queried from the database.
Optionally, the storing the metadata of the objects into the database according to the content in the metadata information of the objects respectively includes: respectively storing the metadata of the object into a database in a sub-table mode according to the user, the bucket and the object type; one table per user for storing metadata information for objects under the user, one table per bucket for storing metadata information for objects under the bucket, and one table per object type for storing metadata information for objects under the object type.
Optionally, the querying metadata of the object according to the content in the object metadata information through the CEPH REST API interface, and returning the queried metadata includes: sending a query request to the CEPH RGW by calling CEPH REST API interface; the CEPH RGW returns a query response and returns request object metadata information.
In another aspect, the present invention provides a CEPH storage object search apparatus, operating in a storage device, the search apparatus including:
the object uploading module is used for sending an object uploading request to the CEPH RGW through an CEPH RGW API interface, uploading the object to the CEPH RGW, and returning object information after the object is uploaded successfully; the device comprises a metadata query module, a data processing module and a data processing module, wherein the metadata query module is used for querying object metadata information through an CEPH REST API interface provided by CEPH RGW, and the object metadata information comprises a user, a bucket, an object type, an object name, a creation time, a creation size and the like; the metadata storage module is used for respectively storing the metadata of the object into the database according to the content in the metadata information of the object; and the object query module is used for performing metadata query on the object according to the content in the object metadata information through an CEPH RESTAPI interface and returning the queried metadata so as to query the object to be queried from the database.
Optionally, the object query module includes a request sending module and a data returning module.
The request sending module is used for sending a query request to the CEPH RGW by calling an CEPH REST API interface; and the data return module is used for returning the query response to the CEPH RGW and returning the metadata information of the request object.
In a third aspect, the present invention also provides a storage device, comprising a processor and a memory, the processor and the memory being electrically connected by a bus; the memory is stored with program codes; the processor is used for reading the program codes from the memory through the bus and running the program codes to execute the method.
The invention has the following beneficial effects:
the invention inquires the object metadata information by calling CEPH RGW API, and stores the object by classifying and listing according to the user, the barrel and the object, and inquires the object for the application by providing the REST API interface. The method has the advantages that the classification and the table division are carried out according to the users, the buckets and the objects, the query efficiency is improved, and the fuzzy and paging query can be provided by entering the buckets according to the users and then entering the object hierarchical index. Based on REST API protocol and database storage, the application cost and the secondary development cost are greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flowchart of a CEPH storage object search method according to an embodiment of the present invention;
fig. 2 is a block diagram of a CEPH storage object search apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, an embodiment of the present application provides a CEPH storage object searching method applied to a storage device, where the method includes step S10, step S20, step S30, and step S40.
Step S10: and sending an object uploading request to the CEPH RGW through an CEPH RGW API interface, uploading the object to the CEPH RGW, and returning object information by the CEPH RGW after the object is successfully uploaded.
Step S20: the object metadata information, including user, bucket, object type, object name, creation time and size, etc., is queried through the CEPH REST API interface provided by CEPH RGW.
Step S30: and respectively storing the metadata of the object into the database according to the content in the metadata information of the object. Specifically, the metadata of the object is respectively stored in a database in a sub-table mode according to the user, the bucket and the object type; one table per user for storing metadata information for objects under the user, one table per bucket for storing metadata information for objects under the bucket, and one table per object type for storing metadata information for objects under the object type.
Step S40: and performing metadata query on the object according to the content in the object metadata information through an CEPH REST API interface, and returning the queried metadata so as to query the object to be queried from the database.
Optionally, the step S40 may further include a sub-step S401 and a sub-step S402.
Substep S401: a query request is sent to the CEPH RGW by calling the CEPH REST API interface.
Substep S402: after receiving the query request, the CEPH RGW returns a query response and returns the metadata information of the request object.
In another aspect, the present embodiment provides a CEPH storage object search apparatus, which runs on a storage device, and includes an object uploading module 1, a metadata querying module 2, a metadata storage module 3, and an object querying module 4.
The object uploading module 1 is used for sending an object uploading request to the CEPH RGW through an CEPH RGW API interface, uploading the object to the CEPH RGW, and returning object information after the object is uploaded successfully;
a metadata query module 2, configured to query object metadata information through an CEPH REST API interface provided by CEPH RGW, where the object metadata information includes a user, a bucket, an object type, an object name, creation time and size, and the like;
the metadata storage module 3 is used for respectively storing the metadata of the object into the database according to the content in the object metadata information;
and the object query module 4 is used for performing metadata query on the object according to the content in the object metadata information through an CEPH REST API interface, and returning the queried metadata so as to query the object to be queried from the database.
Optionally, the object query module 4 may further include a request sending module 41 and a data returning module 42.
A request sending module 41, configured to send a query request to the CEPH RGW through a call CEPH REST API interface;
and the data returning module 42 is used for the CEPH RGW to return the query response and return the metadata information of the request object.
The above modules may be implemented by software codes, and in this case, the modules may be stored in a memory. The above modules may also be implemented by hardware, such as an integrated circuit chip.
The CEPH storage object searching device provided by the embodiment of the invention has the same implementation principle and technical effect as the method embodiments, and for brief description, reference may be made to corresponding contents in the method embodiments where no embodiment is mentioned.
CEPH is a unified, distributed file system designed for excellent performance, reliability, and scalability. CEPH RGW is a storage gateway.
Elastic search: the ElasticSearch is a Lucene-based search server. It provides a distributed multi-user capable full-text search engine based on RESTful Web interfaces.
CEPH REST API Restful API is a design style and development for web applications that, based on HTTP, may use XML format definitions or JSON format definitions.
The CEPH REST API interface provides APP fuzzy, paging queries, and queries by user or bucket or object name and upload time, and is based on REST API specifications.
In a third aspect, the present embodiment provides a storage device, comprising a processor and a memory, the processor and the memory being electrically connected by a bus; the memory is stored with program codes; the processor is used for reading the program codes from the memory through the bus and running the program codes to execute the method.
The storage device also includes a storage controller, and the elements of the memory, storage controller and processor are electrically connected, directly or indirectly, to enable the transfer or interaction of data. For example, electrical connections between these components may be made through one or more communication or signal buses. The CEPH storage object search method includes at least one software function module which may be stored in a memory in the form of software or firmware (firmware), for example, a software function module or a computer program included in the CEPH storage object search apparatus, respectively.
The memory may store various software programs and modules, such as program instructions/modules corresponding to the message sending method and apparatus provided in the embodiments of the present application. The processor executes various functional applications and data processing by running software programs and modules stored in the memory, that is, implements the message sending method in the embodiment of the present application.
The Memory may include, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read Only Memory (PROM), Erasable Read Only Memory (EPROM), electrically Erasable Read Only Memory (EEPROM), and the like.
The processor may be an integrated circuit chip having signal processing capabilities. The processor may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. Which may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A CEPH storage object searching method is applied to a storage device, and comprises the following steps:
sending an object uploading request to the CEPH RGW through an CEPH RGW API interface, uploading the object to the CEPH RGW, and returning object information after the object is uploaded successfully;
querying object metadata information through an CEPH REST API interface provided by CEPH RGW;
respectively storing the metadata of the object into a database according to the content in the metadata information of the object;
and performing metadata query on the object according to the content in the object metadata information through an CEPH REST API interface, and returning the queried metadata so as to query the object to be queried from the database.
2. A CEPH storage object search method according to claim 1, wherein: the metadata information includes user, bucket, and object types.
3. A CEPH storage object search method according to claim 2, wherein the storing metadata of the objects in the database according to contents in the object metadata information respectively comprises:
respectively storing the metadata of the object into a database in a sub-table mode according to the user, the bucket and the object type; one table per user for storing metadata information for objects under the user, one table per bucket for storing metadata information for objects under the bucket, and one table per object type for storing metadata information for objects under the object type.
4. A CEPH storage object search method according to claim 2, wherein said performing metadata query of the object according to the content in the object metadata information through an CEPH RESTAPI interface, and returning the queried metadata comprises:
sending a query request to the CEPH RGW by calling CEPH REST API interface;
the CEPH RGW returns a query response and returns request object metadata information.
5. A CEPH storage object search apparatus, operable on a storage device, the search apparatus comprising:
the object uploading module is used for sending an object uploading request to the CEPH RGW through an CEPH RGW API interface, uploading the object to the CEPH RGW, and returning object information after the object is uploaded successfully;
the metadata query module is used for querying object metadata information through an CEPH REST API interface provided by the CEPH RGW;
the metadata storage module is used for respectively storing the metadata of the object into the database according to the content in the metadata information of the object;
and the object query module is used for performing metadata query on the object according to the content in the object metadata information through an CEPH REST API interface and returning the queried metadata so as to query the object to be queried from the database.
6. A CEPH storage object search apparatus as claimed in claim 5, wherein the object query module comprises:
the request sending module is used for sending a query request to the CEPH RGW by calling an CEPH REST API interface;
and the data return module is used for returning the query response to the CEPH RGW and returning the metadata information of the request object.
7. A storage device, characterized by: the storage device comprises a processor and a memory, wherein the processor and the memory are electrically connected through a bus; the memory has program code stored therein; the processor, which is used to read and run the program code from the memory through the bus, executes the method of any claim 1-4.
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