CN104580517A - HDFS (Hadoop distributed file system)-based access method and system and user local system equipment - Google Patents
HDFS (Hadoop distributed file system)-based access method and system and user local system equipment Download PDFInfo
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- CN104580517A CN104580517A CN201510045006.5A CN201510045006A CN104580517A CN 104580517 A CN104580517 A CN 104580517A CN 201510045006 A CN201510045006 A CN 201510045006A CN 104580517 A CN104580517 A CN 104580517A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- H04L67/10—Protocols in which an application is distributed across nodes in the network
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Abstract
The invention provides an HDFS (Hadoop distributed file system)-based access method and system and user local system equipment. The HDFS-based access method includes a first directory corresponding to an HDFS in a local system of a user, and mounting uniform resource identifier (URI) resources of the HDFS on the first directory; receiving an access request of the first directory in the local system of the user; accessing the HDFS according to the access request for the first directory. By the HDFS-based access method, professional requirements on the user can be lowered, and complexity of service realization can be lowered.
Description
Technical field
The present invention relates to areas of information technology, particularly based on the access method of distributed file system HDFS and system and user's local system equipment.
Background technology
HDFS (Hadoop Distributed File System) is a distributed file system.HDFS has the feature of high fault tolerance, and design is used for being deployed on cheap hardware.And it provides high-throughput to visit the data of application program, be applicable to the application program that those have super large data set.HDFS relaxes the requirement of POSIX, can realize the data in the form access file system flowed like this.
At present, the access method of HDFS is comprised: URL(uniform resource locator) (Universal Resource Locator, URL) corresponding for HDFS is supplied to user; User calls the application-specific DLL (dynamic link library) (Application Program Interface, API) corresponding to HDFS, accesses this URL, thus realizes the access to HDFS.
Visible, in the prior art, the access that user must use specific API could realize HDFS.Need certain professional knowledge owing to calling API, write specific API Calls language, therefore, higher requirement is proposed to user, add the difficulty of business realizing.
Summary of the invention
The invention provides the access method of a kind of distributed file system HDFS and system and user's local system equipment, the professional requirement to user can be reduced.
Based on an access method of distributed file system HDFS, the catalogue S corresponding to HDFS is set in the local system of user, and the Uniform Resource Identifier URI resource of HDFS is mounted on described catalogue S; Also comprise:
Receive user to the access request of catalogue S described in local system;
Described HDFS is accessed according to the access request of catalogue S.
The described Uniform Resource Identifier URI resource by HDFS is mounted on described catalogue S and comprises:
By fuse, load the library file of the HDFS corresponding to described user during installation, carry out the docking of file system format, the URI resource of HDFS to be mounted on described catalogue S.
Comprise further: for different users arranges different user names, and in HDFS, authorize the addressable resource of each user name;
Before the described Uniform Resource Identifier URI resource by HDFS is mounted on described catalogue S, comprise further: the carry request receiving user, the user name of carrying user in this request and the resource information that need load; According to carry request, whether the user name of carrying in checking request has access rights to the described resource information that need load, and if so, then continues the Uniform Resource Identifier URI resource of HDFS being mounted on described catalogue S described in performing.
Comprise further: for different users distributes different certificates, and in HDFS, authorize the addressable resource of each certificate;
Before the described Uniform Resource Identifier URI resource by HDFS is mounted on described catalogue S, comprise further: the carry request receiving user, the certificate information of carrying user in this request and the resource information that need load; According to carry request, whether the certificate carried in checking request has access rights to the described resource information that need load, and if so, then continues the Uniform Resource Identifier URI resource of HDFS being mounted on described catalogue S described in performing.
Described local system is windows system, then described catalogue S is the file in windows system;
Or,
Described local system is linux system, then described catalogue S is the catalogue in linux system.
User's local system equipment, comprising:
Setting unit, for arranging the catalogue S corresponding to outside HDFS in the local system of user;
Carry unit, for being mounted to the catalogue S that described setting unit is arranged by the Uniform Resource Identifier URI resource of HDFS;
Access performance element, preserves the packed good API operation of calling HDFS, receives user to the access request of catalogue S described in local system, according to the API operation access request of catalogue S being performed to described encapsulation, to access outside HDFS.
Described carry unit comprises fuse and adds subelements,
Described fuse adds subelements, for by fuse, loads the library file of the HDFS corresponding to described user, carry out the docking of file system format, the URI resource of HDFS to be mounted on described catalogue S during installation.
Based on an access system of distributed file system HDFS, comprising: any one user's local system equipment above-mentioned, and HDFS.
Said system may further include: first resource spacer assembly, for arranging different user names for different users, and in HDFS, authorizes the addressable resource of each user name; Receive the carry request of user, the user name of carrying user in this request and the resource information that need load; According to carry request, whether the user name of carrying in checking request has access rights to the described resource information that need load, and if so, then triggers and the Uniform Resource Identifier URI resource of HDFS is mounted on described catalogue S.
Said system may further include: Secondary resource spacer assembly, for distributing different certificates for different users, and in HDFS, authorizes the addressable resource of each certificate; Receive the carry request of user, the certificate information of carrying user in this request and the resource information that need load; According to carry request, whether the certificate carried in checking request has access rights to the described resource information that need load, and if so, then triggers and the Uniform Resource Identifier URI resource of HDFS is mounted on described catalogue S.
Visible, in the embodiment of the present invention provides, owing in advance the API operation of calling HDFS having been carried out encapsulating and has been kept in the local system equipment of user, and, localized carry mechanism is also utilized to be mounted in local file system catalogue by HDFS resource, like this, for user, then shield the professional operation for HDFS that user needs to perform, if user is without the need to accessing specific URL and without the need to writing specific API Calls language.Visible, user only needs to access the catalogue S in local system, then can perform subsequent access HDFS by the local system equipment of user, therefore, greatly reduce the professional requirement to user, reduce the difficulty of business realizing.
Accompanying drawing explanation
Fig. 1 is the flow chart to HDFS access in one embodiment of the invention.
Fig. 2 adopts the mode of user name sequestered resources to realize the flow chart of accessing HDFS in one embodiment of the invention.
Fig. 3 adopts the mode of certificate sequestered resources to realize the flow chart of accessing HDFS in one embodiment of the invention.
Fig. 4 is the structural representation of the local system equipment of user in one embodiment of the invention.
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 clearly and completely described.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
One embodiment of the invention proposes a kind of access method based on distributed file system HDFS, and can be performed by the local system equipment of user, see Fig. 1, the method comprises:
Step 101: the catalogue S corresponding to HDFS is set in the local system of user.
Step 102: the Uniform Resource Identifier URI resource of HDFS is mounted on described catalogue S.
Step 103: preserve the API operation of calling HDFS encapsulated in advance.
Step 104: receive user to the access request of catalogue S described in local system.
Step 10:5: according to the access request to catalogue S, the API operation packaged by execution, to access HDFS.
Visible, in embodiments of the present invention, owing in advance the API operation of calling HDFS having been carried out encapsulating and has been kept in the local system equipment of user, and, localized carry mechanism is also utilized to be mounted in local file system catalogue by HDFS resource, like this, for user, then shield the professional operation for HDFS that user needs to perform, if user is without the need to accessing specific URL and without the need to writing specific API Calls language.Visible, user only needs the catalogue S operation performed in access local system, then can perform subsequent access HDFS by the local system equipment of user, therefore, greatly reduce the professional requirement to user, reduce the difficulty of business realizing.
In an embodiment of the invention, user's space file system (Filesystem inUserspace, fuse) can be passed through and carried out localized carry mechanism.
In an embodiment of the present invention, can also security access mechanism be realized, namely in advance by the resource isolation in HDFS, be verified by user name or the mode of certification authentication, ensure that user is merely able to access the resource had in the HDFS of access rights.Describe in detail respectively by two embodiments below.
Embodiment A:
The mode that the present embodiment is verified for above-mentioned user name.See Fig. 2, this embodiment realizes comprising based on the access process of distributed file system HDFS:
Step 200: the catalogue S corresponding to HDFS is set in the local system of user.
Step 201: for different users arranges different user names, and in HDFS, authorize the addressable resource of each user name.
Such as, have user 1 to user 3, in HDFS, user is called that the user of user 1 is authorized can only access resources A, and user is called that the user of user 2 is authorized can only access resources B, and user is called that the user of user 3 is authorized can only access resources C.
Step 202: the carry request receiving user, carries the user name such as user 1 of user and the HDFS resource information that need load in this request.
Step 203: according to carry request, whether the user name such as user 1 carried in checking request has access rights to the described resource information that need load, and if so, performs step 205, otherwise, perform step 204.
Step 204: return loading failed message to user, terminates current process.
Such as, user 1 needs to load the resource C in HDFS, according to the process in step 201, then can perform the process of this step.
For another example, user 1 needs to load the resource A in HDFS, according to the process in step 201, then can perform step 205 and subsequent treatment thereof.
Step 205: by fuse, loads the library file of the HDFS corresponding to user, carries out the docking of file system format, the Uniform Resource Identifier URI resource of HDFS be mounted on catalogue S during installation.
Step 206: preserve the packed good API operation of calling HDFS in the local system of user.
Step 207: when user needs to access HDFS, user is to the access request of local system equipment input to catalogue S.
Step 208: after local system equipment receives the access request to catalogue S, performs the API operation of encapsulation, to access outside HDFS.
Visible, in the embodiment shown in Figure 2, the user name provided during long-range carry has access rights to needing the resource of carry, under HDFS resource could being mounted to the corresponding catalogue of local system, instead of access specific resource according to URL address in prior art, avoid user in prior art and derive other user resources addresses according to URL address, thus steal the shortcoming of the HDFS resource of other users, substantially increase the access security to HDFS.
Embodiment B:
The present embodiment is for the mode of above-mentioned certification authentication.See Fig. 3, this embodiment realizes comprising based on the access process of distributed file system HDFS:
Step 300: the catalogue S corresponding to HDFS is set in the local system of user.
Step 301: for different users distributes different certificates, and in HDFS, authorize the addressable resource of each certificate.
Such as, there is user 1 to user 3, for it is assigned with certificate 1 to certificate 3 respectively, in HDFS, having that the user 1 of certificate 1 is authorized can only access resources A, and having that the user 2 of certificate 2 is authorized can only access resources B, and having that the user 3 of certificate 3 is authorized can only access resources C.
Step 302: the carry request receiving user, carries the certificate information such as certificate 1 of user and the HDFS resource information that need load in this request.
Step 303: according to carry request, in checking request the certificate that carries as certificate 1 whether to as described in need the resource information loaded to have access rights, if so, perform step 305, otherwise, perform step 304.
Step 304: return loading failed message to user, terminates current process.
Step 305: by fuse, loads the library file of the HDFS corresponding to user, carries out the docking of file system format, the Uniform Resource Identifier URI resource of HDFS be mounted on catalogue S during installation.
Step 306: preserve the packed good API operation of calling HDFS in the local system of user.
Step 307: when user needs to access HDFS, user is to the access request of local system equipment input to catalogue S.
Step 308: after local system equipment receives the access request to catalogue S, performs the API operation of encapsulation, to access outside HDFS.
Visible, in the embodiment shown in fig. 3, the certificate that during long-range carry, user provides has access rights to needing the resource of carry, under HDFS resource could being mounted to the corresponding catalogue of local system, instead of access specific resource according to URL address in prior art, avoid user in prior art and derive other user resources addresses according to URL address, thus steal the shortcoming of the HDFS resource of other users, substantially increase the access security to HDFS.
One embodiment of the invention also proposed a kind of user's local system equipment, see Fig. 4, comprising:
Setting unit 401, for arranging the catalogue S corresponding to outside HDFS in the local system of user;
Carry unit 402, for being mounted to the catalogue S that described setting unit 401 is arranged by the Uniform Resource Identifier URI resource of HDFS;
Access performance element 403, preserves the packed good API operation of calling HDFS, receives user to the access request of catalogue S described in local system, according to the API operation access request of catalogue S being performed to described encapsulation, to access outside HDFS.
The concrete mode realizing carry is: described carry unit 402 comprises fuse and adds a subelements,
Described fuse adds subelements, for by fuse, loads the library file of the HDFS corresponding to described user, carry out the docking of file system format, the URI resource of HDFS to be mounted on described catalogue S during installation.
One embodiment of the invention also proposed a kind of access system based on distributed file system HDFS, comprising: user's local system equipment that any one embodiment above-mentioned proposes, and HDFS.
In an embodiment of the invention, in order to realize in HDFS resource for the isolation of different user, access system based on distributed file system HDFS can further include first resource spacer assembly, for arranging different user names for different users, and in HDFS, authorize the addressable resource of each user name; Receive the carry request of user, the user name of carrying user in this request and the resource information that need load; According to carry request, whether the user name of carrying in checking request has access rights to the described resource information that need load, and if so, then triggers and the Uniform Resource Identifier URI resource of HDFS is mounted on described catalogue S.
In an embodiment of the invention, in order to realize in HDFS resource for the isolation of different user, access system based on distributed file system HDFS can further include Secondary resource spacer assembly, for distributing different certificates for different users, and in HDFS, authorize the addressable resource of each certificate; Receive the carry request of user, the certificate information of carrying user in this request and the resource information that need load; According to carry request, whether the certificate carried in checking request has access rights to the described resource information that need load, and if so, then triggers and the Uniform Resource Identifier URI resource of HDFS is mounted on described catalogue S.
In some embodiments of the invention, local system can be windows system, then catalogue S can be the file in windows system.
In some embodiments of the invention, local system can be linux system, then catalogue S can be the catalogue in linux system.
It should be noted that, in this article, the relational terms of such as first and second and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element " being comprised " limited by statement, and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical factor.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. based on the access method of distributed file system HDFS, it is characterized in that, the first catalogue corresponding to HDFS is set in the local system of user, and the Uniform Resource Identifier URI resource of HDFS is mounted in described first catalogue; Also comprise:
Receive user to the access request of the first catalogue described in local system;
Described HDFS is accessed according to the access request of the first catalogue.
2. method according to claim 1, is characterized in that, the described Uniform Resource Identifier URI resource by HDFS is mounted in described first catalogue and comprises:
By fuse, load the library file of the HDFS corresponding to described user during installation, carry out the docking of file system format, the URI resource of HDFS to be mounted in described first catalogue.
3. method according to claim 2, is characterized in that, comprises further: for different users arranges different user names, and in HDFS, authorize the addressable resource of each user name;
Before the described Uniform Resource Identifier URI resource by HDFS is mounted in described first catalogue, comprise further: the carry request receiving user, the user name of carrying user in this request and the resource information that need load; According to carry request, whether the user name of carrying in checking request has access rights to the described resource information that need load, and if so, then continues the Uniform Resource Identifier URI resource of HDFS being mounted in described first catalogue described in performing.
4. method according to claim 2, is characterized in that, comprises further: for different users distributes different certificates, and in HDFS, authorize the addressable resource of each certificate;
Before the described Uniform Resource Identifier URI resource by HDFS is mounted in described first catalogue, comprise further: the carry request receiving user, the certificate information of carrying user in this request and the resource information that need load; According to carry request, whether the certificate carried in checking request has access rights to the described resource information that need load, and if so, then continues the Uniform Resource Identifier URI resource of HDFS being mounted in described first catalogue described in performing.
5., according to described method arbitrary in Claims 1-4, it is characterized in that, described local system is windows system, then described first catalogue is the file in windows system;
Or,
Described local system is linux system, then described first catalogue is the catalogue in linux system.
6. user's local system equipment, is characterized in that, comprising:
Setting unit, for arranging the first catalogue corresponding to outside HDFS in the local system of user;
Carry unit, for being mounted to the first catalogue that described setting unit is arranged by the Uniform Resource Identifier URI resource of HDFS;
Access performance element, preserves the packed good API operation of calling HDFS, receives user to the access request of the first catalogue described in local system, according to the API operation access request of the first catalogue being performed to described encapsulation, to access outside HDFS.
7. user's local system equipment according to claim 6, is characterized in that, described carry unit comprises fuse and adds subelements,
Described fuse adds subelements, for by fuse, loads the library file of the HDFS corresponding to described user, carry out the docking of file system format, the URI resource of HDFS to be mounted in described first catalogue during installation.
8. based on an access system of distributed file system HDFS, it is characterized in that, comprising: user's local system equipment as claimed in claims 6 or 7, and HDFS.
9. system according to claim 8, is characterized in that, comprises further: first resource spacer assembly, for arranging different user names for different users, and in HDFS, authorizes the addressable resource of each user name; Receive the carry request of user, the user name of carrying user in this request and the resource information that need load; According to carry request, whether the user name of carrying in checking request has access rights to the described resource information that need load, and if so, then triggers and the Uniform Resource Identifier URI resource of HDFS is mounted in described first catalogue.
10. system according to claim 8, is characterized in that, comprises further: Secondary resource spacer assembly, for distributing different certificates for different users, and in HDFS, authorizes the addressable resource of each certificate; Receive the carry request of user, the certificate information of carrying user in this request and the resource information that need load; According to carry request, whether the certificate carried in checking request has access rights to the described resource information that need load, and if so, then triggers and the Uniform Resource Identifier URI resource of HDFS is mounted in described first catalogue.
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Application publication date: 20150429 |