CN115426333A - Multi-cluster access system and method for object storage - Google Patents
Multi-cluster access system and method for object storage Download PDFInfo
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Abstract
The application discloses a multi-cluster access system and method for object storage, wherein the system comprises: the system comprises a client, a domain name resolution server and a plurality of storage clusters. The domain name resolution server is used for setting a first-level domain name, namely a uniform domain name for client access, a plurality of storage nodes are arranged in any storage cluster, and any storage cluster is matched with a second-level domain name. The method comprises the following steps: setting a first-level domain name in a domain name resolution server; the client sends an access request to a domain name resolution server according to the first-level domain name; resolving a corresponding secondary domain name according to the access request, and forwarding the access request to a corresponding storage cluster according to the resolved secondary domain name; and processing the access request, and returning a processing result to the client through the domain name resolution server. By the method and the device, the service switching frequency of the client can be effectively reduced, the operation of searching the cluster by the client is facilitated, the management efficiency of object storage is greatly improved, and the user experience is improved.
Description
Technical Field
The present application relates to the field of object storage access technologies, and in particular, to a multi-cluster access system and method for object storage.
Background
In the big data era, the object storage service is an emerging massive, low-cost and high-reliability storage service. In the face of huge data volume and large number of storage cluster nodes, how to reasonably plan an object storage cluster so as to provide service for customers is an important technical problem.
At present, under the scene that the object storage is distributed with more nodes, two strategies are generally available. The first is to divide a plurality of nodes into one cluster. The second is to divide the nodes into clusters, which use their respective domain names.
However, in the current object storage access method, for the first case, there are many storage nodes, and the operation and maintenance management difficulty is large, and when a failure occurs, the damage of any disk will cause the cluster to perform a reconfiguration state, so that the object storage management efficiency is low due to the method. In the second case, since the bucket cannot span the cluster, when accessing the bucket for operation, a matching cluster needs to be found, thereby increasing the operation of finding the cluster; in addition, the multiple clusters use respective domain names, and when capacity expansion occurs, the client needs to add new domain name configuration and perform service switching according to different requirements. Therefore, the current object storage access method causes the object storage management efficiency to be low and the user experience to be poor.
Disclosure of Invention
The application provides a multi-cluster access system and a multi-cluster access method for object storage, which aim to solve the problem that the object storage management efficiency is low due to the object storage access method in the prior art.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
a multi-cluster access system for object storage, the system comprising: the domain name resolution server comprises a client, a domain name resolution server and a plurality of storage clusters, wherein a plurality of storage nodes are arranged in any one storage cluster, and any one storage cluster is matched with a secondary domain name;
the domain name resolution server is used for providing a first-level domain name, and the first-level domain name is a uniform domain name which provides service for the client side by the plurality of storage clusters;
the client is used for sending an access request to a domain name resolution server according to the first-level domain name;
the domain name resolution server is also used for resolving a corresponding secondary domain name according to the access request and forwarding the access request to a corresponding storage cluster according to the resolved secondary domain name, wherein the domain name resolution server is internally provided with a corresponding relation among a user name, bucket information and the secondary domain name;
and any storage cluster is used for providing a secondary domain name service and an object storage service, processing the access request and returning a processing result to the client through the domain name resolution server.
Optionally, the domain name resolution server includes:
the first-level domain name setting module is used for setting uniform domain name service for a plurality of storage clusters;
the analysis module is used for analyzing the corresponding secondary domain name according to the access request;
the forwarding module is used for forwarding the access request to the corresponding storage cluster according to the analyzed secondary domain name;
and the storage module is used for storing the corresponding relation among the user name, the bucket information and the secondary domain name.
Optionally, the parsing module includes:
the first analysis unit is used for analyzing the corresponding user name and the corresponding bucket information according to the access request;
and the second analysis unit is used for determining the corresponding secondary domain name according to the corresponding user name and the corresponding bucket information.
Optionally, the system further includes a domain name adding module, configured to add a secondary domain name of the new storage cluster to the domain name server when a new storage cluster is added.
A multi-cluster access method for object storage, which is applied to a multi-cluster access system for object storage, the system comprising: the method comprises the following steps that a plurality of storage nodes are arranged in any storage cluster, any storage cluster is matched with a secondary domain name and is used for providing secondary domain name service and object storage service, and a corresponding relation among a user name, bucket information and the secondary domain name is built in the domain name resolution server, and the method comprises the following steps:
setting a first-level domain name in a domain name resolution server, wherein the first-level domain name is a uniform domain name which provides service for a client by a plurality of storage clusters;
the client sends an access request to a domain name resolution server according to the primary domain name;
resolving a corresponding secondary domain name according to the access request, and forwarding the access request to a corresponding storage cluster according to the resolved secondary domain name;
and processing the access request, and returning a processing result to the client through the domain name resolution server.
Optionally, the method for resolving a corresponding secondary domain name according to the access request and forwarding the access request to a corresponding storage cluster according to the resolved secondary domain name includes:
analyzing corresponding user name and bucket information according to the access request;
determining a corresponding secondary domain name according to the corresponding user name and the corresponding bucket information;
and forwarding the access request to a corresponding storage cluster according to the second-level domain name of the response.
Optionally, the second-level domain name is bound with an IP address of each storage node in any storage cluster.
Optionally, the method further comprises:
and when a new storage cluster is added, adding the secondary domain name of the new storage cluster into the domain name server.
Optionally, when a new storage cluster is added, a method for adding a secondary domain name of the new storage cluster to a domain name server includes:
newly building a user name and bucket information in the new storage cluster;
storing the newly-built user name, bucket information and the second-level domain name of the new storage cluster into a domain name server
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the application provides a multi-cluster access system for object storage, which mainly comprises: the system comprises a client, a domain name resolution server and a plurality of storage clusters. A plurality of storage nodes are arranged in any storage cluster, and any storage cluster is matched with a secondary domain name. The domain name resolution server is used for setting a first-level domain name, namely a uniform domain name for accessing the client, and the setting of the first-level domain name can realize that a plurality of storage clusters use the same domain name to provide service for the client, the client only needs to send an access request to the domain name resolution server, the domain name resolution server performs resolution to determine the corresponding storage cluster and forwards the access request to the corresponding storage cluster, so that the service switching frequency of the client is effectively reduced, the operation of searching the cluster by the client is facilitated, and the management efficiency of object storage is greatly improved. Moreover, the multi-cluster access system in the embodiment can infinitely expand the number of clusters, and is convenient and flexible to apply. In addition, in this embodiment, a plurality of storage clusters provide a second-level domain name service, and each storage cluster corresponds to a second-level domain name, so that services among the storage clusters are isolated from each other, and the operations of capacity expansion, capacity reduction and upgrade of each storage cluster do not affect each other, which is convenient for maintenance.
The application also provides a multi-cluster access method for object storage, which is mainly applied to the system. The method comprises the steps that firstly, a plurality of storage clusters are arranged in a domain name resolution server to provide a first-level domain name of a uniform domain name service for a client, then the client sends an access request to the domain name resolution server according to the first-level domain name, secondly, the domain name resolution server resolves a corresponding second-level domain name according to the access request, as each second-level domain name is matched with one storage cluster, the corresponding storage cluster can be determined according to the resolved second-level domain name, the access request is forwarded to the corresponding storage cluster, the storage cluster processes the access request, and a processing result is returned to the client through the domain name resolution server. In this embodiment, by setting a uniform first-level domain name, a plurality of storage clusters can provide a service to a client by using the same domain name, the client only needs to send an access request to a domain name resolution server, the domain name resolution server performs resolution to determine a corresponding storage cluster, forwards the access request to the corresponding storage cluster for processing, and feeds back a processing result to the client through the domain name resolution server. From the perspective of the client, only the access request needs to be sent according to the first-level domain name, and the corresponding storage cluster does not need to be searched from a large number of clusters, so that the management efficiency of object storage can be effectively improved, and the user experience is improved. In addition, during cluster expansion, only the second-level domain name information of the newly added storage cluster needs to be added into the domain name server, so that the service switching frequency of the client can be effectively reduced, the management efficiency of object storage is greatly improved, and the user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a multi-cluster access system for object storage according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of built-in information in a domain name resolution server in the embodiment of the present application;
fig. 3 is a flowchart illustrating a multi-cluster access method for object storage according to an embodiment of the present disclosure.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.
For a better understanding of the present application, embodiments of the present application are explained in detail below with reference to the accompanying drawings.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a multiple cluster access system for object storage according to an embodiment of the present disclosure. As shown in fig. 1, the multi-cluster access system for object storage in this embodiment mainly includes: the system comprises a client, a domain name resolution server and a plurality of storage clusters. A plurality of storage nodes are arranged in any storage cluster, and any storage cluster is matched with a secondary domain name. A plurality of storage clusters form a large cluster.
And the domain name resolution server is used for providing a first-level domain name, and the first-level domain name is a unified domain name which provides service for the client side by a plurality of storage clusters. And the client is used for sending an access request to the domain name resolution server according to the first-level domain name. I.e. the client is responsible for sending specific operation requests.
And the domain name resolution server is also used for resolving a corresponding secondary domain name according to the access request and forwarding the access request to the corresponding storage cluster according to the resolved secondary domain name, wherein the domain name resolution server is internally provided with a corresponding relation among the user name, the bucket information and the secondary domain name. And any storage cluster is used for providing a secondary domain name service and an object storage service, processing the access request and returning the processing result to the client through the domain name resolution server.
In this embodiment, the domain name resolution server provides a uniform domain name, embeds a corresponding relationship between a user name, bucket information, and a secondary domain name, and can resolve a specific secondary domain name according to request information of a client, and forward the request information of the client to a certain storage cluster on a bottom layer. The specific built-in information in the domain name resolution server is shown in fig. 2. In fig. 2, user1 is a user name, cluster1-bucket-date is a bucket name, and cluster1.Com is a second-level domain name of the storage cluster1, that is, a second-level domain name of the storage cluster1. The corresponding relation between the user/bucket and the second-level domain name is many-to-one, and the user/bucket information can be analyzed according to the request information sent by the client, so that the specific second-level domain name can be found in the domain name analysis service.
In this embodiment, a domain name resolution server is added in an original multi-cluster storage architecture, and when a client accesses a multi-storage cluster, according to the system, an access request is directly sent to the domain name resolution server according to a first-level domain name. And determining a storage cluster matched with the current access request through the domain name resolution server, and feeding back a processing result of the storage cluster to the client. For the client, when the access bucket is operated, the corresponding storage cluster does not need to be searched, so that the workload of the client is greatly reduced, the cluster management efficiency is improved, and the user experience is improved.
Further, the domain name resolution server includes: the device comprises a first-level domain name setting module, an analysis module, a forwarding module and a storage module. The system comprises a first-level domain name setting module, a second-level domain name setting module and a domain name service module, wherein the first-level domain name setting module is used for setting uniform domain name service for a plurality of storage clusters; the analysis module is used for analyzing the corresponding secondary domain name according to the access request; the forwarding module forwards the access request to the corresponding storage cluster according to the analyzed second-level domain name; and the storage module is used for storing the corresponding relation among the user name, the bucket information and the secondary domain name.
Further, the parsing module includes: a first analysis unit and a second analysis unit. The first analysis unit is used for analyzing the corresponding user name and the corresponding bucket information according to the access request; and the second analysis unit is used for determining the corresponding secondary domain name according to the corresponding user name and the bucket information.
The multi-cluster access system of this embodiment further includes a domain name adding module, configured to add the secondary domain name information of the new storage cluster to the domain name server when a new storage cluster is added. The second-level domain name information includes: secondary domain name, user name and bucket information. For the same storage cluster, a unique second-level domain name is matched, a plurality of user names are matched, and one user name is matched with a plurality of buckets, so that for the same storage cluster, the user name and the second-level domain name are in a many-to-one relationship, and bucket information and the second-level domain name are also in a many-to-one relationship.
Namely, a user name and a bucket are newly built in a new storage cluster, and the newly built user name, bucket information and a secondary domain name of the new storage cluster are stored in a domain name resolution server, so that the new storage cluster can be added into a large cluster to provide services.
The multi-cluster access system in the embodiment can support infinite cluster expansion, and the access efficiency of the user side is not affected after the cluster expansion. And the services of each storage cluster are isolated from each other and do not influence each other, the first-level domain name is arranged in the domain name resolution server and can be accessed by a client, each storage cluster provides a second-level domain name, the resolution work of the second-level domain name is carried out in the domain name resolution server, when the storage clusters are subjected to capacity expansion and capacity reduction or upgrading operation, each storage cluster can be carried out independently, the structure is convenient for the clusters to carry out different maintenance operations at any time and do not influence each other, and the management efficiency of object storage is improved.
Example two
Referring to fig. 3 on the basis of the embodiments shown in fig. 1 and fig. 2, fig. 3 is a flowchart illustrating a multi-cluster access method for object storage according to an embodiment of the present application. As can be seen from fig. 3, the multi-cluster access method for object storage in this embodiment is mainly applied to the multi-cluster access system described above. The method mainly comprises the following processes:
s1: and setting a first-level domain name in the domain name resolution server, wherein the first-level domain name is a uniform domain name for providing services for the client by a plurality of storage clusters.
In the embodiment, a first-level domain name is set in advance for the client to access. In this embodiment, the first-level domain name is set, so that a plurality of storage clusters can provide services to the client by using a unified domain name, thereby effectively reducing the service switching frequency and the invalid search time of the client, greatly improving the multi-cluster access management efficiency, and improving the user experience.
S2: the client sends an access request to the domain name resolution server according to the first-level domain name.
In this embodiment, the client directly accesses the uniform domain name, i.e., the primary domain name. The specific access form is consistent with the traditional object access form, such as: com/bucket/object. The put/get is an access request, that is, a specific operation request, the put is a request for uploading an object, and the get is a request for downloading the object. Com is the first-level domain name, bucket is the bucket, object is the object. The access request is sent to a domain name resolution service.
S3: and resolving a corresponding secondary domain name according to the access request, and forwarding the access request to the corresponding storage cluster according to the resolved secondary domain name.
Further, step S3 includes the following process:
s31: analyzing corresponding user name and bucket information according to the access request;
s32: determining a corresponding secondary domain name according to the corresponding user name and the corresponding bucket information;
s33: and forwarding the access request to the corresponding storage cluster according to the second-level domain name of the response.
Further, the second-level domain name of this embodiment is bound with the IP address of each storage node in any storage cluster, so that the access request is favorably distributed to different nodes for processing, load balancing is favorably realized, the storage capacity of each node is fully utilized, and the multi-cluster access processing efficiency is improved.
With continued reference to fig. 3, after forwarding the access request to the corresponding storage cluster according to the parsed secondary domain name, step S4 is performed: and processing the access request, and returning a processing result to the client through the domain name resolution server.
Further, the method in this embodiment further includes S5: and when a new storage cluster is added, adding the secondary domain name information of the new storage cluster into the domain name server.
Specifically, step S5 includes the following processes:
s51: newly building user name and bucket information in the new storage cluster;
s52: and storing the newly-built user name, the bucket information and the secondary domain name of the new storage cluster into a domain name server.
The parts not described in detail in this embodiment can be referred to the embodiments shown in fig. 1 and fig. 2, and the two embodiments can be referred to each other, and are not described again here.
The previous description is only an example of the present application, and is provided to enable any person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A multi-cluster access system for object storage, the system comprising: the domain name resolution server comprises a client, a domain name resolution server and a plurality of storage clusters, wherein a plurality of storage nodes are arranged in any one storage cluster, and any one storage cluster is matched with a secondary domain name;
the domain name resolution server is used for providing a first-level domain name, and the first-level domain name is a uniform domain name which is used for providing service for the client by the plurality of storage clusters;
the client is used for sending an access request to a domain name resolution server according to the primary domain name;
the domain name resolution server is also used for resolving a corresponding secondary domain name according to the access request and forwarding the access request to a corresponding storage cluster according to the resolved secondary domain name, wherein the domain name resolution server is internally provided with a corresponding relation among a user name, bucket information and the secondary domain name;
and any storage cluster is used for providing a secondary domain name service and an object storage service, processing the access request and returning a processing result to the client through the domain name resolution server.
2. The system of claim 1, wherein the domain name resolution server comprises:
the first-level domain name setting module is used for setting uniform domain name service for a plurality of storage clusters;
the analysis module is used for analyzing the corresponding secondary domain name according to the access request;
the forwarding module is used for forwarding the access request to the corresponding storage cluster according to the analyzed secondary domain name;
and the storage module is used for storing the corresponding relation among the user name, the bucket information and the secondary domain name.
3. The system of claim 2, wherein the parsing module comprises:
the first analysis unit is used for analyzing corresponding user names and bucket information according to the access requests;
and the second analysis unit is used for determining a corresponding secondary domain name according to the corresponding user name and the corresponding bucket information.
4. The system according to any of claims 1-3, further comprising a domain name adding module configured to add secondary domain name information of a new storage cluster to the domain name server when the new storage cluster is added.
5. A multi-cluster access method for object storage, the method is applied to a multi-cluster access system for object storage, the system comprises: the method comprises the following steps that a plurality of storage nodes are arranged in any storage cluster, any storage cluster is matched with a secondary domain name and is used for providing secondary domain name service and object storage service, and a corresponding relation among a user name, bucket information and the secondary domain name is built in the domain name resolution server, and the method comprises the following steps:
setting a first-level domain name in a domain name resolution server, wherein the first-level domain name is a uniform domain name which provides service for a client by a plurality of storage clusters;
the client sends an access request to a domain name resolution server according to the first-level domain name;
resolving a corresponding secondary domain name according to the access request, and forwarding the access request to a corresponding storage cluster according to the resolved secondary domain name;
and processing the access request, and returning a processing result to the client through the domain name resolution server.
6. The method of claim 5, wherein parsing the corresponding secondary domain name according to the access request, and forwarding the access request to the corresponding storage cluster according to the parsed secondary domain name comprises:
analyzing corresponding user name and bucket information according to the access request;
determining a corresponding secondary domain name according to the corresponding user name and the corresponding bucket information;
and forwarding the access request to a corresponding storage cluster according to the second-level domain name of the response.
7. The method of claim 5, wherein the secondary domain name is bound with an IP address of each storage node in any storage cluster.
8. The method of claim 5, wherein the method further comprises:
and when a new storage cluster is added, adding the secondary domain name information of the new storage cluster into the domain name server.
9. The method of claim 8, wherein adding the secondary domain name of the new storage cluster to the domain name server when the new storage cluster is added comprises:
newly building user name and bucket information in the new storage cluster;
and storing the newly-built user name, the bucket information and the second-level domain name of the new storage cluster into a domain name server.
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