CN109120556B - Method and system for cloud host to access object storage server - Google Patents

Abstract

The invention discloses a kind of method and system of cloud host access object storage server, this method comprises: initiating the access request of object storage server by cloud host；Access request includes the resource address of target ip address, destination port number and object stored messages, and object stored messages are stored in object storage server；Access request is received by virtual switch, and target ip address and destination port number are matched with Openflow flow table rule；In the case where successful match, access request is forwarded to object storage server according to matched Openflow flow table rule by virtual switch, so that object storage server is according to resource address to cloud host response object stored messages.It can effectively avoid being routed through core switch using method and system of the invention, prevent the bandwidth of cabinet uplink to the limitation of access speed, the access efficiency of access object storage server can be effectively improved.

Description

Method and system for cloud host to access object storage server

technical field

The invention relates to the technical field of object storage, and in particular, to a method and system for accessing object storage data by a cloud host.

Background technique

Object storage is an object-based distributed storage service, which can realize the storage of massive object data. It has the characteristics of high reliability, easy maintenance and openness. It is widely used in the management of digital resources such as pictures, videos, music, and documents. and cloud computing.

The local application program interface of object storage is a RESTful (Representational StateTransfer, presentation layer state transition) API (Application Programming Interface, application programming interface), and the client running the application realizes the service of the application by requesting the service of the object storage server. , wherein the object storage server provides object access interface and object data storage.

As shown in FIG. 1 , it is a schematic diagram of a physical network topology structure of an object storage service in the prior art. The object storage server cluster is arranged in one set of cabinets, and the computing server running the cloud host is laid out in another set of cabinets. When the cloud host needs to access the object storage server, it must be routed through the core switch, which leads to the access speed of the object storage server cluster. Limited by the bandwidth of the uplink line of the cabinet, its access efficiency is low.

SUMMARY OF THE INVENTION

In view of the above problems, the method and system for accessing an object storage server by a cloud host of the present invention can effectively avoid routing through the core switch, prevent the bandwidth of the uplink line of the cabinet from restricting the access speed, and can effectively improve the access to the object storage server. efficiency.

In order to solve the above technical problems, a method for a cloud host to access an object storage server of the present invention is suitable for an object storage service in which the cloud host and the object storage server are deployed in the same cabinet, and the method includes the following steps:

Initiate an access request of the object storage server through the cloud host; the access request includes the target IP address, the target port number and the resource address of the object storage message, and the object storage message is stored in the object storage server;

Receive the access request through the virtual switch, and match the target IP address and the target port number with the Openflow flow table rule;

If the matching is successful, the virtual switch forwards the access request to the object storage server according to the matching Openflow flow table rule, so that the object storage server replies to the cloud host according to the resource address. Describe the object storage message.

Compared with the prior art, in a method for a cloud host to access an object storage server of the present invention, the cloud host and the object storage server are deployed in the same cabinet, so that when the cloud host initiates an access request to the object storage server, the virtual When the access request matches the information in the Openflow flow table rule matching item, the switch can forward the access request to the object storage server, and then the object storage server obtains the corresponding object storage packet according to the resource address carried in the access request and sends it through the virtual switch. Reply the object storage message to the cloud host to access the object storage server. The method for accessing an object storage server by a cloud host, on the one hand, deploys the cloud host and the object storage server in the same cabinet through a distributed layout method, and on the other hand, utilizes the cloud host and a virtual switch to realize the access path drainage of the object storage server, so that the cloud The host can directly access the object storage server through the virtual switch, avoiding routing through the core switch, preventing the bandwidth of the uplink line of the cabinet from restricting the access speed, effectively improving the access efficiency of accessing the object storage server, and effectively avoiding the problem of single point of failure. .

As an improvement of the above solution, the object storage server includes a local object storage server, and the local object storage server is used to indicate an object storage server running on the same computer server as the cloud host;

In the case of successful matching, the virtual switch forwards the access request to the object storage server according to the matching Openflow flow table rule, including the following steps:

The virtual switch forwards the access request to the local object storage server according to the matching Openflow flow table rule, so that the local object storage server replies the object storage message to the cloud host according to the resource address .

As an improvement of the above solution, the object storage server includes an external object storage server, and the external object storage server is used to indicate an object storage server running on a different computer server from the cloud host;

In the case of successful matching, the virtual switch forwards the access request to the object storage server according to the matching Openflow flow table rule, including the following steps:

The virtual switch forwards the access request to the local load balancer according to the matching Openflow flow table rule;

The local load balancer receives the access request and uses a reverse proxy mode to access the external object storage server, so that the external object storage server replies the object storage message to the cloud host according to the resource address .

As an improvement of the above solution, after the virtual switch receives the access request and matches the target IP address and the target port number with the local Openflow flow table rule, the following steps are also included:

If the matching fails, the virtual switch sends the access request to the SDN controller in the form of a first packet; wherein, the SDN controller is preset with the IP address and service port number of the object storage server;

When the target IP address matches the IP address of the object storage server and the target port number matches the service port number, the SDN controller creates a new Openflow flow table rule and creates a new Openflow flow table rule. Openflow flow table rules are sent to the virtual switch.

As an improvement of the above scheme, the access request also includes a source MAC address, a target MAC address, a source IP address and a network protocol number;

The Openflow flow table rule includes a forward flow table rule and a reverse flow table rule; wherein, the forward flow table rule is used to instruct the cloud host to access the object storage server, and the reverse flow table rule is used to instruct the object storage The server replies the object storage data to the cloud host;

The SDN controller creates the forward flow table rule through the following steps:

Set the source MAC address, destination MAC address, source IP address, destination IP address, network protocol number and destination port number in the access request to the source MAC address, destination MAC address in the forward flow table rule matching item in turn address, source IP address, destination IP address, network protocol number and destination port number, and setting the forwarding to the local port as the execution action of the forward flow table rule;

The SDN controller creates the reverse flow table rule through the following steps:

Set the target MAC address, source MAC address, target IP address, source IP address, network protocol number and target port number in the access request to the source MAC address, target MAC address in the reverse flow table rule matching item in turn address, source IP address, destination IP address, network protocol number and destination port number, and set the network port forwarded to the cloud host as the execution action of the reverse flow table rule.

As an improvement of the above solution, the local port includes a local object storage server port and a local load balancer port;

The forward flow table rule includes a first forward flow table rule and a second forward flow table rule;

The execution action of setting the forwarding to the local port as the forward flow table rule includes the following steps:

When the object storage server is a local object storage server, setting the port forwarded to the local object storage server as the execution action of the first forward flow table rule;

When the object storage server is a local load balancer, setting the port forwarded to the local load balancer as the execution action of the second forward flow table rule.

In order to solve the above technical problems, the present invention also provides a system for a cloud host to access an object storage server, which is suitable for object storage services in which the cloud host and the object storage server are deployed in the same cabinet, and the system includes:

The cloud host is used to initiate an access request of the object storage server; the access request includes the target IP address, the target port number and the resource address of the object storage message, and the object storage message is stored in the object storage server;

The virtual switch is used to match the target IP address and the target port number with the Openflow flow table rules when receiving the access request, and in the case of successful matching, according to the matching Openflow flow table rules forwarding the access request to the object storage server;

The object storage server is configured to reply the object storage message to the cloud host according to the resource address when receiving the access request.

As an improvement of the above solution, the object storage server includes a local object storage server, the cloud host includes a first cloud host, and the local object storage server is used to indicate an object running on the same computer server as the first cloud host storage server;

The first cloud host is used to initiate a first access request of the local object storage server; the first access request includes the first target IP address, the first target port number and the resource address of the first object storage message, so The first object storage message is stored in the local object storage server;

The virtual switch includes a first virtual switch, and the first virtual switch includes:

The first access request forwarding module is configured to forward the first access request to the local object storage server according to the matching Openflow flow table rule in the case of successful matching, so that the local object storage server can The resource address replies the object storage message to the first cloud host.

As an improvement of the above solution, the object storage server includes an external object storage server, the cloud host includes a second cloud host, and the external object storage server is used to indicate objects running on different computer servers from the second cloud host storage server;

The second cloud host is used to initiate a second access request of the external object storage server; the second access request includes the second target IP address, the second target port number and the resource address of the second object storage message, so The second object storage message is stored in the external object storage server;

The virtual switch includes a second virtual switch, and the second virtual switch includes:

The second access request forwarding module is configured to forward the second access request to the local load balancer according to the matching Openflow flow table rule when the matching is successful;

The local load balancer is configured to, when receiving the second access request, use a reverse proxy mode to access the external object storage server, so that the external object storage server reports to the first object storage server according to the resource address. The second cloud host replies to the object storage message.

As an improvement of the above solution, the virtual switch further includes:

an access request sending module, configured to send the access request to the SDN controller in the form of a first packet in the case of a matching failure; wherein the SDN controller is preset with the IP address and service of the object storage server The port number;

The SDN controller is configured to create a new Openflow flow table rule and create a new Openflow flow table rule when the target IP address matches the IP address of the object storage server and the target port number matches the service port number. Send the newly created Openflow flow table rule to the virtual switch.

Description of drawings

FIG. 1 is a schematic diagram of a physical network topology structure of an object storage service in the prior art.

FIG. 2 is a schematic flowchart of a method for a cloud host to access an object storage server according to Embodiment 1 of the present invention.

FIG. 3 is a schematic flowchart of a method for a cloud host to access an object storage server according to Embodiment 2 of the present invention.

FIG. 4 is a schematic flowchart of a method for a cloud host to access an object storage server according to Embodiment 3 of the present invention.

FIG. 5 is a schematic structural diagram of a system for a cloud host to access an object storage server according to Embodiment 4 of the present invention.

6 is a schematic structural diagram of a system for a cloud host to access an object storage server according to Embodiment 5 of the present invention.

FIG. 7 is a schematic diagram of a physical network topology structure of a local object storage service in Embodiment 5 of the present invention.

FIG. 8 is a schematic structural diagram of a system for a cloud host to access an object storage server according to Embodiment 6 of the present invention.

FIG. 9 is a schematic diagram of a physical network topology structure of an external object storage service in Embodiment 6 of the present invention.

Detailed ways

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from this description, and those skilled in the art can make similar promotions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

The technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments and accompanying drawings.

Example 1

As shown in FIG. 2 , it is a schematic flowchart of a method for a cloud host to access an object storage server according to Embodiment 1 of the present invention.

A method for a cloud host to access an object storage server of the present invention is suitable for an object storage service in which the cloud host and the object storage server are deployed in the same cabinet, and the method includes the following steps:

S1. Initiate an access request of the object storage server through the cloud host; the access request includes the target IP address, the target port number and the resource address of the object storage message, and the object storage message is stored in the object storage server;

S2. Receive the access request through the virtual switch, and match the target IP address and target port number with the Openflow flow table rules;

S3. If the matching is successful, the virtual switch forwards the access request to the object storage server according to the matching Openflow flow table rule, so that the object storage server replies the object storage message to the cloud host according to the resource address.

Compared with the prior art, in a method for a cloud host to access an object storage server of the present invention, the cloud host and the object storage server are deployed in the same cabinet, so that when the cloud host initiates an access request to the object storage server, the virtual When the access request matches the information in the Openflow flow table rule matching item, the switch can forward the access request to the object storage server, and then the object storage server obtains the corresponding object storage packet according to the resource address carried in the access request and sends it through the virtual switch. Reply the object storage message to the cloud host to access the object storage server. The method for accessing an object storage server by a cloud host, on the one hand, deploys the cloud host and the object storage server in the same cabinet through a distributed layout method, and on the other hand, utilizes the cloud host and a virtual switch to realize the access path drainage of the object storage server, so that the cloud The host can directly access the object storage server through the virtual switch, avoiding routing through the core switch, preventing the bandwidth of the uplink line of the cabinet from restricting the access speed, effectively improving the access efficiency of accessing the object storage server, and effectively avoiding the problem of single point of failure. .

Further, in order to improve the speed of accessing the object storage server, after step S2, the following steps are also included:

S4. In the case of failure to match, the virtual switch sends the access request to the SDN controller in the form of a first packet; wherein, the SDN controller is preset with the IP address and service port number of the object storage server;

S5. Under the condition that the target IP address matches the IP address of the object storage server and the target port number matches the service port number, the SDN controller creates a new Openflow flow table rule and sends the newly created Openflow flow table rule to the virtual switch .

Specifically, in step S5, the access request further includes source MAC address, destination MAC address, source IP address and network protocol number; Openflow flow table rules include forward flow table rules and reverse flow table rules; The table rule is used to instruct the cloud host to access the object storage server, and the reverse flow table rule is used to instruct the object storage server to reply the object storage data to the cloud host;

The SDN controller creates a new forward flow table rule through the following steps: sequentially setting the source MAC address, destination MAC address, source IP address, destination IP address, network protocol number and destination port number in the access request as the forward flow table The source MAC address, destination MAC address, source IP address, destination IP address, network protocol number and destination port number in the rule matching item, and forwarding to the local port is set as the execution action of the forward flow table rule;

The SDN controller creates a new reverse flow table rule through the following steps: Set the destination MAC address, source MAC address, destination IP address, source IP address, network protocol number and destination port number in the access request as the reverse flow table rule matching The source MAC address, destination MAC address, source IP address, destination IP address, network protocol number and destination port number in the item, and the network port forwarded to the cloud host is set as the execution action of the reverse flow table rule.

In this embodiment, when the Openflow flow table rule is not configured for the access request, when the cloud host initiates a new access request, the virtual switch sends the new access request to the SDN controller in the form of the first packet, so that the SDN controller can send the new access request to the SDN controller according to the The access request generates corresponding forward flow table rules and directional flow table rules, so that the virtual switch forwards the access request according to the forward flow table rules to obtain the object storage packets, and replies the object storage packets to the cloud host according to the reverse flow table rules. It can effectively improve the access speed of the object storage server.

Example 2

In the method for accessing an object storage server by a cloud host in Embodiment 2 of the present invention, the object storage server includes a local object storage server; the local object storage server is used to indicate an object storage server running on the same computer server as the cloud host.

As shown in FIG. 3 , it is a schematic flowchart of a method for a cloud host to access an object storage server according to Embodiment 2 of the present invention.

The method of embodiment 2 of the present invention comprises the following steps:

S11, initiate a first access request of the local object storage server through the cloud host; the first access request includes the first target IP address, the first target port number and the resource address of the first object storage message, and the first object storage message storage in the local object storage server;

S21, receive the first access request through the virtual switch, and match the first target IP address and the first target port number with the Openflow flow table rule;

S311. If the matching is successful, the virtual switch forwards the first access request to the local object storage server according to the matching Openflow flow table rule, so that the local object storage server replies the object storage message to the cloud host according to the resource address.

Further, in Embodiment 2, after step S21, the following steps are also included:

S321, when the matching fails, the virtual switch sends the first access request to the SDN controller in the form of a first packet; wherein, the SDN controller is preset with the IP address and service port number of the local object storage server;

Wherein, the first access request also includes a first source MAC address, a first target MAC address, a first source IP address and a first network protocol number; the Openflow flow table rule includes a first forward flow table rule and a first reverse flow table rule Flow table rule; wherein, the first forward flow table rule is used to instruct the cloud host to access the local object storage server, and the first reverse flow table rule is used to instruct the local object storage server to reply object storage data to the cloud host.

S322, the SDN controller creates a new Openflow flow table rule and sends the new Openflow flow table rule to the virtual machine under the condition that the target IP address matches the IP address of the local object storage server and the target port number matches the service port number switch.

In step S322, the SDN controller creates a first forward flow table rule through the following steps:

The SDN controller sequentially sets the first source MAC address, the first target MAC address, the first source IP address, the first target IP address, the first network protocol number, and the first target port number in the first access request as the first Source MAC address, destination MAC address, source IP address, destination IP address, network protocol number, and destination port number in the forward flow table rule matching item; and set the port forwarded to the local object storage server as the first forward flow table The execution action of the rule.

In step S322, the SDN controller creates a first reverse flow table rule through the following steps:

The SDN controller sequentially sets the first target MAC address, the first source MAC address, the first target IP address, the first source IP address, the first network protocol number, and the first target port number in the first access request as the first Source MAC address, destination MAC address, source IP address, destination IP address, network protocol number, and destination port number in the reverse flow table rule match; and set the network port forwarded to the cloud host as the first reverse flow table The execution action of the rule.

Example 3

In the method for accessing an object storage server by a cloud host in Embodiment 3 of the present invention, the object storage server includes an external object storage server; the external object storage server is used to indicate an object storage server running on a different computer server from the cloud host.

As shown in FIG. 4 , it is a schematic flowchart of a method for a cloud host to access an object storage server according to Embodiment 3 of the present invention.

The method of embodiment 3 of the present invention comprises the following steps:

S12, initiate a second access request of the external object storage server through the cloud host; the second access request includes the second target IP address, the second target port number and the resource address of the second object storage message, and the second object storage message stores in an external object storage server;

S22, receive the second access request through the virtual switch, and match the second target IP address and the second target port number with the Openflow flow table rule;

S331. If the matching is successful, the virtual switch forwards the second access request to the local load balancer according to the matching Openflow flow table rule;

Wherein, the second access request further includes a second source MAC address, a second destination MAC address, a second source IP address and a second network protocol number; the Openflow flow table rule includes a second forward flow table rule and a second reverse flow table rule Flow table rule; wherein, the second forward flow table rule is used to instruct the cloud host to access the external object storage server, and the second reverse flow table rule is used to instruct the external object storage server to reply object storage data to the cloud host.

S332. The local load balancer receives the second access request and uses the reverse proxy mode to access the external object storage server, so that the external object storage server replies to the cloud host with an object storage message according to the resource address.

In this embodiment, the local load balancer receives the second access request and uses the reverse proxy mode to access the external object storage server, so that the load of the second access request can be balanced to the external object storage, which can further improve the access speed of the access method.

Further, in Embodiment 3, the following steps are also included after step S22:

S341, when the matching fails, the virtual switch sends the second access request to the SDN controller in the form of a first packet; wherein, the SDN controller is preset with the IP address and service port number of the external object storage server;

S342. The SDN controller creates a new Openflow flow table rule and creates a new Openflow flow table rule when the second target IP address matches the IP address of the external object storage server and the second target port number matches the service port number The rules are sent to the virtual switch.

In step S342, the SDN controller creates a second forward flow table rule through the following steps:

The SDN controller sequentially sets the second source MAC address, the second target MAC address, the second source IP address, the second target IP address, the second network protocol number, and the second target port number in the second access request as the second The source MAC address, destination MAC address, source IP address, destination IP address, network protocol number, and destination port number in the forward flow table rule matching items, and set the port forwarded to the external object storage server as the second forward flow table The execution action of the rule.

In step S342, the SDN controller creates a second reverse flow table rule through the following steps:

The SDN controller sequentially sets the second target MAC address, the second source MAC address, the second target IP address, the second source IP address, the second network protocol number, and the second target port number in the second access request to the second Source MAC address, destination MAC address, source IP address, destination IP address, network protocol number, and destination port number in the reverse flow table rule matching items, and set the network port forwarded to the cloud host as the second forward flow table The execution action of the rule.

Example 4

As shown in FIG. 5 , it is a schematic structural diagram of a system for a cloud host to access an object storage server according to Embodiment 4 of the present invention.

The system includes: a cloud host 1 for initiating an access request of an object storage server; the access request includes a target IP address, a target port number and a resource address of an object storage message, and the object storage message is stored in the object storage server 2; virtual Switch 3 is used to match the target IP address and target port number with the Openflow flow table rules when receiving the access request, and if the match is successful, forward the access request to the object according to the matching Openflow flow table rules The storage server 2; the object storage server 2 is used to reply the object storage message to the cloud host 1 according to the resource address when receiving the access request; the SDN controller 4 is used to match the target IP address and target port number with the Openflow flow table If the rule matching fails, create a new Openflow flow table rule according to the access request and send the newly created Openflow flow table rule to the virtual switch.

Compared with the prior art, in a system for accessing an object storage server by a cloud host of the present invention, the cloud host 1 and the object storage server 2 are deployed in the same cabinet, so that when the cloud host 1 initiates an access request for the object storage server 2 When the access request matches the information in the Openflow flow table rule matching item, the virtual switch 3 can forward the access request to the object storage server 2, and then the object storage server 2 obtains the corresponding object storage server 2 according to the resource address carried in the access request. message and reply the object storage message to the cloud host 1 through the virtual switch 3 to realize the access of the object storage server 2 . In this system, on the one hand, the cloud host 1 and the object storage server 2 are deployed in the same cabinet through the distributed layout method, and on the other hand, the cloud host 1 and the virtual switch 3 are used to realize the access path drainage of the object storage server 2, so that the The cloud host 1 can directly access the object storage server 2 through the virtual switch, avoiding routing through the core switch, preventing the bandwidth of the uplink line of the cabinet from restricting the access speed, effectively improving the access efficiency of accessing the object storage server 2, and avoiding the occurrence of single point failures and improve system performance.

Example 5

As shown in FIG. 6 , it is a schematic structural diagram of a system for a cloud host to access an object storage server according to Embodiment 5 of the present invention.

As shown in FIG. 6 , the system includes: a first cloud host 11 for initiating a first access request of the local object storage server; the first access request includes a first target IP address, a first target port number and a first object storage The resource address of the message, the first object storage message is stored in the local object storage server 21; the first virtual switch 31 is used for, when receiving the first access request, the first target IP address and the first target port number Match with the Openflow flow table rules, and in the case of successful matching, forward the first access request to the local object storage server 21 according to the matching Openflow flow table rules; the local object storage server 21 is used for receiving the first access When requesting, reply the object storage message to the first cloud host 11 according to the resource address; the first SDN controller 41 is used for when the first target IP address and the first target port number fail to match the rules of the Openflow flow table, Create an Openflow flow table rule according to the first access request and send the newly created Openflow flow table rule to the first virtual switch 31 .

Specifically, the first virtual switch 31 includes: a first access request forwarding module, configured to forward the first access request to the local object storage server according to the matching Openflow flow table rule in the case of successful matching, so that the local object The storage server replies the object storage message to the first cloud host according to the resource address; the first access request sending module is configured to send the first access request to the first SDN controller in the form of a first packet when the matching fails; The first SDN controller is preset with the IP address and service port number of the local object storage server.

Specifically, the first access request further includes a first source MAC address, a first destination MAC address, a first source IP address, and a first network protocol number, and the Openflow flow table rule includes a first forward flow table rule and a first reverse flow table rule. Forward flow table rule; wherein, the first forward flow table rule is used to instruct the first cloud host to access the local object storage server, and the first reverse flow table rule is used to instruct the local object storage server to reply object storage data to the first cloud host .

The first SDN controller 41 includes: a first forward flow table creation module, configured to sequentially convert the first source MAC address, the first target MAC address, the first source IP address, and the first target IP address in the first access request. The address, the first network protocol number and the first destination port number are set as the source MAC address, destination MAC address, source IP address, destination IP address, network protocol number and destination port number in the first forward flow table rule matching item, The forwarding to the local object storage server port is set as the execution action of the first forward flow table rule; The MAC address, the first destination IP address, the first source IP address, the first network protocol number, and the first destination port number are set as the source MAC address, destination MAC address, and source IP address in the first reverse flow table rule matching item , target IP address, network protocol number and target port number, and set the network port forwarded to the first cloud host as the execution action of the first reverse flow table rule.

As shown in FIG. 6 and FIG. 7 , in the system of Embodiment 5, the first cloud host 11 , the local object storage server 21 , the first virtual switch 31 and the first SDN controller 41 run on the same computer server, and the computer The server is connected to the core switch through the TOR switch. The first cloud host 11 can directly access the local object storage server 21 through the first virtual switch 31, which can effectively avoid the limitation of the access speed by the bandwidth of the uplink line of the cabinet, and improve the access speed and efficiency.

Example 6

As shown in FIG. 8 , it is a schematic structural diagram of a system for a cloud host to access an object storage server according to Embodiment 6 of the present invention.

The system includes: a second cloud host 12 for initiating a second access request to the external object storage server 22; the second access request includes the second target IP address, the second target port number and the resources of the second object storage message address, the second object storage message is stored in the external object storage server 22; the second virtual switch 32 is used to match the target IP address and target port number with the Openflow flow table rule when receiving the second access request, And in the case of successful matching, the second access request is forwarded to the local load balancer 5 according to the matching Openflow flow table rules; the local load balancer 5 is used to adopt the reverse proxy mode when receiving the second access request. Accessing the external object storage server 22, so that the external object storage server 22 replies the object storage message to the second cloud host 12 according to the resource address; the second SDN controller 42 is used for matching the target IP address and target port number with the Openflow flow table If the rule matching fails, create an Openflow flow table rule according to the second access request and send the newly created Openflow flow table rule to the second virtual switch 32 .

Specifically, the second virtual switch 32 includes: a second access request forwarding module, configured to forward the second access request according to the matching Openflow flow table rule under the condition that the target IP address and the target port number are successfully matched with the Openflow flow table rule The request is forwarded to the local load balancer; the second access request sending module is configured to send the second access request in the form of a first packet to the second SDN controller in the case of a matching failure; wherein, the second SDN controller pre- Set the IP address and service port number of the external object storage server.

Specifically, the second access request further includes a second source MAC address, a second destination MAC address, a second source IP address, and a second network protocol number, and the Openflow flow table rule includes a second forward flow table rule and a second reverse flow table rule. A forward flow table rule; wherein the second forward flow table rule is used to instruct the second cloud host to access the external object storage server, and the second reverse flow table rule is used to instruct the external object storage server to reply object storage data to the second cloud host .

The second SDN controller 42 includes: a second forward flow table creation module, configured to sequentially convert the second source MAC address, the second target MAC address, the second source IP address, the second target IP address in the second access request The address, the second network protocol number and the second destination port number are set to the source MAC address, destination MAC address, source IP address, destination IP address, network protocol number and destination port number in the second forward flow table rule matching item, The forwarding to the local load balancer port is set as the execution action of the second forward flow table rule; the second reverse flow table creation module is used to sequentially convert the second destination MAC address and the second source in the second access request. The MAC address, the second destination IP address, the second source IP address, the second network protocol number, and the second destination port number are set as the source MAC address, destination MAC address, and source IP address in the second reverse flow table rule matching item , target IP address, network protocol number and target port number, and set the network port forwarded to the second cloud host as the execution action of the second reverse flow table rule.

As shown in FIG. 8 and FIG. 9, in the system of Embodiment 6, the second cloud host 12, the local load balancer 5, the second virtual switch 32 and the second SDN controller 42 run on the same computer server, and the external The object storage server 22 runs on another computer server, and the same computer server and the other computer server are respectively connected to the core switch through the TOR switch. The second cloud host 12 forwards the second access request to the local load balancer 5 through the second virtual switch 32, so that the local load balancer 5 adopts the reverse proxy mode to obtain the object storage packets in the external object storage server 22, so that the system Not only can the second access request be evenly loaded to the external object storage server 22 to further improve the access speed and efficiency, but also the security performance of the system can be improved through the reverse proxy mode.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Therefore, without departing from the content of the technical solutions of the present invention, any changes made to the above embodiments according to the technical essence of the present invention Simple modifications, equivalent changes and modifications still fall within the scope of the technical solutions of the present invention.

Claims (8)

1. A method for a cloud host to access an object storage server, wherein the method is applicable to the object storage service that the cloud host and the object storage server are deployed in the same cabinet, and the method comprises the following steps: Initiate an access request for the object storage server through the cloud host; the access request includes the target IP address, the target port number, and the resource address of the object storage message, and the object storage message is stored in the object storage server; wherein, the The object storage server includes an external object storage server, and the external object storage server is used to indicate an object storage server running on a different computer server from the cloud host; Receive the access request through the virtual switch, and match the target IP address and the target port number with the Openflow flow table rule; In the case of successful matching, the virtual switch forwards the access request to the local load balancer according to the matching Openflow flow table rule; The local load balancer receives the access request and uses a reverse proxy mode to access the external object storage server, so that the external object storage server replies the object storage message to the cloud host according to the resource address . 2. The method for a cloud host to access an object storage server according to claim 1, wherein the object storage server comprises a local object storage server, and the local object storage server is used to indicate that the cloud host runs in the same Object storage servers for computer servers; In the case of successful matching, the virtual switch forwards the access request to the object storage server according to the matching Openflow flow table rule, including the following steps: The virtual switch forwards the access request to the local object storage server according to the matching Openflow flow table rule, so that the local object storage server replies the object storage message to the cloud host according to the resource address . 3. The method for a cloud host to access an object storage server according to claim 1, wherein the access request is received at a virtual switch, and the target IP address and the target port number are combined with a local Openflow flow table rule After matching, it also includes the following steps: If the matching fails, the virtual switch sends the access request to the SDN controller in the form of a first packet; wherein, the SDN controller is preset with the IP address and service port number of the object storage server; When the target IP address matches the IP address of the object storage server and the target port number matches the service port number, the SDN controller creates a new Openflow flow table rule and creates a new Openflow flow table rule. Openflow flow table rules are sent to the virtual switch. 4. the method for cloud host access object storage server as claimed in claim 3, is characterized in that, described access request also comprises source MAC address, target MAC address, source IP address and network protocol number; The Openflow flow table rule includes a forward flow table rule and a reverse flow table rule; wherein, the forward flow table rule is used to instruct the cloud host to access the object storage server, and the reverse flow table rule is used to instruct the object storage The server replies the object storage data to the cloud host; The SDN controller creates the forward flow table rule through the following steps: Set the source MAC address, destination MAC address, source IP address, destination IP address, network protocol number and destination port number in the access request to the source MAC address, destination MAC address in the forward flow table rule matching item in turn address, source IP address, destination IP address, network protocol number and destination port number, and setting the forwarding to the local port as the execution action of the forward flow table rule; The SDN controller creates the reverse flow table rule through the following steps: Set the target MAC address, source MAC address, target IP address, source IP address, network protocol number and target port number in the access request to the source MAC address, target MAC address in the reverse flow table rule matching item in turn address, source IP address, destination IP address, network protocol number and destination port number, and set the network port forwarded to the cloud host as the execution action of the reverse flow table rule. 5. The method for accessing an object storage server by a cloud host according to claim 4, wherein the local port comprises a local object storage server port and a local load balancer port; The forward flow table rule includes a first forward flow table rule and a second forward flow table rule; The execution action of setting the forwarding to the local port as the forward flow table rule includes the following steps: When the object storage server is a local object storage server, setting the port forwarded to the local object storage server as the execution action of the first forward flow table rule; When the object storage server is a local load balancer, setting the port forwarded to the local load balancer as the execution action of the second forward flow table rule. 6. A system for a cloud host to access an object storage server, characterized in that it is suitable for an object storage service in which the cloud host and the object storage server are deployed in the same cabinet, the system comprising: The cloud host is used to initiate an access request of the object storage server; the access request includes the target IP address, the target port number and the resource address of the object storage message, and the object storage message is stored in the object storage server; The virtual switch is used to match the target IP address and the target port number with the Openflow flow table rules when receiving the access request, and in the case of successful matching, according to the matching Openflow flow table rules forwarding the access request to the object storage server; The object storage server is configured to reply the object storage message to the cloud host according to the resource address when receiving the access request; wherein, The object storage server includes an external object storage server, the cloud host includes a second cloud host, and the external object storage server is used to indicate an object storage server running on a different computer server from the second cloud host; The virtual switch includes a second virtual switch, and the second virtual switch includes: The second access request forwarding module is configured to forward the second access request to the local load balancer according to the matching Openflow flow table rule when the matching is successful; The local load balancer is configured to, when receiving the second access request, use a reverse proxy mode to access the external object storage server, so that the external object storage server reports to the first object storage server according to the resource address. The second cloud host replies to the object storage message. 7. The system for accessing an object storage server by a cloud host according to claim 6, wherein the object storage server comprises a local object storage server, the cloud host comprises a first cloud host, and the local object storage server uses a for indicating an object storage server running on the same computer server as the first cloud host; The first cloud host is used to initiate a first access request of the local object storage server; the first access request includes the first target IP address, the first target port number and the resource address of the first object storage message, so The first object storage message is stored in the local object storage server; The virtual switch includes a first virtual switch, and the first virtual switch includes: The first access request forwarding module is configured to forward the first access request to the local object storage server according to the matching Openflow flow table rule in the case of successful matching, so that the local object storage server can The resource address replies the object storage message to the first cloud host. 8. The system for a cloud host to access an object storage server according to claim 6, wherein the virtual switch further comprises: an access request sending module, configured to send the access request to the SDN controller in the form of a first packet in the case of a matching failure; wherein the SDN controller is preset with the IP address and service of the object storage server The port number; The SDN controller is configured to create a new Openflow flow table rule and create a new Openflow flow table rule when the target IP address matches the IP address of the object storage server and the target port number matches the service port number. Send the newly created Openflow flow table rule to the virtual switch.