Information acquisition

An information acquiring method, applicable to a secondary proxy server, wherein configuration information of a virtual machine corresponding to the secondary proxy server is cached in the secondary proxy server, wherein the method comprises:

• receiving an information acquiring request sent by a first virtual machine through a primary proxy server;
• wherein the information acquiring request contains:
• an identifier of the first virtual machine, and primary information added by the primary proxy server;
• extracting the primary information from the information acquiring request, and locally acquiring first configuration information according to the identifier of the first virtual machine and the primary information;
• sending the first configuration information to the primary proxy server, such that the primary proxy server caches the first configuration information and sends the first configuration information to the first virtual machine;
• receiving a first update notification sent by an interface server, wherein the first update notification indicates change of configuration information in the interface server;
• determining third to-be-updated configuration information according to the first update notification and sending an identifier of the third to-be-updated configuration information to the interface server;
• receiving third target configuration information which is fed back by the interface server according to the identifier of the third to-be-updated configuration information;
• and
• updating the determined third to-be-updated configuration information with the third target configuration information.

A proxy server, which is a primary proxy server, comprising:

• a processor and a machine readable storage medium storing machine executable instructions that can be executed by the processor, the machine executable instructions comprising:
• a first receiving instruction, a detecting instruction, a first sending instruction, a second sending instruction, a second receiving instruction, and a caching instruction;
• the first receiving instruction is executed by the processor to receive an information acquiring request sent by a first virtual machine;
• wherein the information acquiring request contains an identifier of the first virtual machine;
• the detecting instruction is executed by the processor to detect whether locally cached configuration information contains first configuration information corresponding to the identifier of the first virtual machine;
• the first sending instruction is executed by the processor to, when it is detected that the locally cached configuration information contains the first configuration information corresponding to the identifier of the first virtual machine, locally acquire the first configuration information and send the first configuration information to the first virtual machine;
• the second sending instruction is executed by the processor to, when it is detected that the locally cached configuration information does not contain first configuration information corresponding to the identifier of the first virtual machine, add primary information to the information acquiring request, and send the information acquiring request with added the primary information to a secondary proxy server;
• the second receiving instruction is executed by the processor to receive first configuration information which is fed back by the secondary proxy server according to the identifier of the first virtual machine and the primary information;
• the caching instruction is executed by the processor to cache the received first configuration information and send the received first configuration information to the first virtual machine;
• wherein the second receiving instruction is executed by the processor to further receive a second update notification sent by the secondary proxy server after the secondary proxy server receives a first update notification sent by an interface server, wherein the first update notification indicates change of configuration information in the interface server, and the second update notification indicates change of configuration information cached in the secondary proxy server;
• the second sending instruction is executed by the processor to further determine first to-be-updated configuration information according to the second update notification, and send an identifier of the first to-be-updated configuration information to the secondary proxy server, wherein the first to-be-updated configuration information is configuration information that is cached in the primary proxy server and needs to be updated;
• the second receiving instruction is executed by the processor to further receive first target configuration information fed back by the secondary proxy server according to the identifier of the first to-be-updated configuration information;
• the machine executable instructions further include an update instruction;
• and
• the update instruction is executed by the processor to update the first to-be-updated configuration information with the first target configuration information.

A proxy server, which is a secondary proxy server, wherein configuration information of a virtual machine corresponding to the secondary proxy server is cached in the secondary proxy server, the proxy server comprising:

• a processor and a machine readable storage medium, the machine readable storage medium storing machine executable instructions that can be executed by the processor, the machine executable instructions comprising:
• a receiving instruction, an acquiring instruction, and a sending instruction;
• the receiving instruction is executed by the processor to receive an information acquiring request sent by a first virtual machine through a primary proxy server, wherein the information acquiring request comprises:
• an identifier of the first virtual machine, and primary information added by the primary proxy server;
• the acquiring instruction is executed by the processor to extract the primary information from the information acquiring request, and locally acquire first configuration information according to the identifier of the first virtual machine and the primary information;
• the sending instruction is executed by the processor to send the first configuration information to the primary proxy server, such that the primary proxy server caches the first configuration information and sends the first configuration information to the first virtual machine;
• wherein the receiving instruction is further executed by the processor to receive a first update notification sent by an interface server, wherein the first update notification indicates change of configuration information in the interface server;
• the sending instruction is executed by the processor to further determine third to-be-updated configuration information according to the first update notification and send an identifier of the third to-be-updated configuration information to the interface server;
• the receiving instruction is executed by the processor to further receive third target configuration information fed back by the interface server according to the identifier of the third to-be-updated configuration information;
• and
• the machine executable instructions also include an update instruction;
• the update instruction is executed by the processor to further update the third to-be-updated configuration information with the third target configuration information.