Methods and apparatus for performing a remote procedure call
First Claim
1. A method of supporting automatic service selection in a name server, wherein connection information associated with a selected service is provided for calling the selected service on a remote server, comprising:
- receiving a first registration message at the name server from a first server, wherein the first registration message includes an IP address and a port number to call a specified service;
storing the IP address and the port number in association with the specified service in a directory;
receiving a request at the name server for connection information for the specified service from a client;
providing the connection information for the specified service to the client, wherein the connection information includes the IP address and the port number to be used to call the specified service;
receiving a second registration message at the name server from a second server, wherein the second registration message includes an updated IP address and an updated port number to call the specified service when the specified service is no longer supported by the first server at the IP address and the port number;
receiving a subsequent request at the name server for updated connection information for the specified service from the client;
providing the updated connection information for the specified service to the client when the connection information is no longer valid, wherein the updated connection information includes the updated IP address and the updated port number to be used to call the specified service; and
deleting a first entry associated with the first server from the directory within the name server when notice is received that the first server is non-functional, the first entry including the IP address and the port number.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatus for performing automatic service selection in a client are disclosed, where the client supports a protocol for calling a subroutine on a remote server. A request is sent to a name server for connection information for a specified service. A first handle for the specified service is then obtained using connection information received from the name server, the first handle including the connection information for the specified service, thereby enabling the specified service to be called via the first handle. A notice indicating that the first handle is not functional is then received. A subsequent request is automatically sent to the name server for connection information for the specified service when the notice is received. A second handle including updated connection information for the specified service is then obtained, thereby enabling the specified service to be called via the second handle.
24 Citations
15 Claims
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1. A method of supporting automatic service selection in a name server, wherein connection information associated with a selected service is provided for calling the selected service on a remote server, comprising:
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receiving a first registration message at the name server from a first server, wherein the first registration message includes an IP address and a port number to call a specified service; storing the IP address and the port number in association with the specified service in a directory; receiving a request at the name server for connection information for the specified service from a client; providing the connection information for the specified service to the client, wherein the connection information includes the IP address and the port number to be used to call the specified service; receiving a second registration message at the name server from a second server, wherein the second registration message includes an updated IP address and an updated port number to call the specified service when the specified service is no longer supported by the first server at the IP address and the port number; receiving a subsequent request at the name server for updated connection information for the specified service from the client; providing the updated connection information for the specified service to the client when the connection information is no longer valid, wherein the updated connection information includes the updated IP address and the updated port number to be used to call the specified service; and deleting a first entry associated with the first server from the directory within the name server when notice is received that the first server is non-functional, the first entry including the IP address and the port number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for supporting automatic service selection in a name server, wherein connection information associated with a selected service is provided for calling the selected service on a remote server, comprising:
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means for receiving a first registration message at the name server from a first server, wherein the first registration message includes an IP address and a port number to call a specified service; means for storing the IP address and the port number in association with the specified service in a directory; means for receiving a request at the name server for connection information for the specified service from a client; means for providing the connection information for the specified service to the client, wherein the connection information includes the IP address and the port number to be used to call the specified service; means for receiving a second registration message at the name server from a second server, wherein the second registration message includes an updated IP address and an updated port number to call the specified service when the specified service is no longer supported by the first server at the IP address and the port number; means for receiving a subsequent request at the name server for updated connection information for the specified service from the client; means for providing the updated connection information for the specified service to the client when the connection information is no longer valid, wherein the updated connection information includes the updated IP address and the updated port number to be used to call the specified service; and means for deleting a first entry associated with the first server from the directory within the name server when notice is received that the first server is non-functional, the first entry including the IP address and the port number.
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14. An apparatus for supporting automatic service selection in a name server, wherein connection information associated with a selected service is provided for calling the selected service on a remote server, comprising:
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a processor; and a memory, at least one of the processor and the memory being adapted for; receiving a first registration message at the name server from a first server, wherein the first registration message includes an IP address and a port number to call a specified service; storing the IP address and the port number in association with the specified service in a directory; receiving a request at the name server for connection information for the specified service from a client; providing the connection information for the specified service to the client, wherein the connection information includes the IP address and the port number to be used to call the specified service; receiving a second registration message at the name server from a second server, wherein the second registration message includes an updated IP address and an updated port number to call the specified service when the specified service is no longer supported by the first server at the IP address and the port number; receiving a subsequent request at the name server for updated connection information for the specified service from the client; providing the updated connection information for the specified service to the client when the connection information is no longer valid, wherein the updated connection information includes the updated IP address and the updated port number to be used to call the specified service; and deleting a first entry associated with the first server from the directory within the name server when notice is received that the first server is non-functional, the first entry including the IP address and the port number.
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15. A non-transitory computer-readable medium storing thereon computer-readable instructions that when executed on a processor in a computerized device, supports automatic service selection in a name server, wherein connection information associated with a selected service is provided for calling the selected service on a remote server, comprising:
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instructions for receiving a first registration message at the name server from a first server, wherein the first registration message includes an IP address and a port number to call a specified service; instructions for storing the IP address and the port number in association with the specified service in a directory; instructions for receiving a request at the name server for connection information for the specified service from a client; instructions for providing the connection information for the specified service to the client, wherein the connection information includes the IP address and the port number to be used to call the specified service; instructions for receiving a second registration message at the name server from a second server, wherein the second registration message includes an updated IP address and an updated port number to call the specified service when the specified service is no longer supported by the first server at the IP address and the port number; instructions for receiving a subsequent request at the name server for updated connection information for the specified service from the client; instructions for providing the updated connection information for the specified service to the client when the connection information is no longer valid, wherein the updated connection information includes the updated IP address and the updated port number to be used to call the specified service; and instructions for deleting the first entry associated with the server from a directory within the name server when notice is received that the first server is non-functional, the first entry including the IP address and the port number.
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Specification