DYNAMIC HTTP LOAD BALANCING
First Claim
1. A method of configuring a load balancing program in a load balancer for a cluster of servers to dispatch client requests to the servers in the cluster, the method comprising the steps of:
- the load balancer detecting that the cluster cannot handle the client requests with a predetermined level of performance, and in response, the load balancer automatically requesting configuration information for another server that is not currently active in the cluster, to configure the load balancing program for adding the other server to the cluster to handle client requests; and
after receipt of the configuration information for the other server, the load balancer automatically configuring the load balancing program for the cluster to add the other server to the cluster in accordance with the configuration information received for the other server.
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Accused Products
Abstract
The invention is a method and apparatus for facilitating facilitates load balancing in a server farm. In accordance with various aspects of the invention, all of the information about each server necessary for a load balancing program to define and execute a load balancing algorithm is stored at a predetermined URL for each server. The load balancer can query the predefined URL, which returns the necessary information. The load balancer then dynamically configures the load balancing algorithm in accordance with the returned information.
10 Citations
15 Claims
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1. A method of configuring a load balancing program in a load balancer for a cluster of servers to dispatch client requests to the servers in the cluster, the method comprising the steps of:
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the load balancer detecting that the cluster cannot handle the client requests with a predetermined level of performance, and in response, the load balancer automatically requesting configuration information for another server that is not currently active in the cluster, to configure the load balancing program for adding the other server to the cluster to handle client requests; and after receipt of the configuration information for the other server, the load balancer automatically configuring the load balancing program for the cluster to add the other server to the cluster in accordance with the configuration information received for the other server. - View Dependent Claims (2, 3, 4, 5)
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6. A computer program product for configuring a load balancing program in a load balancer for a cluster of servers to dispatch client requests to the servers in the cluster, the computer program product comprising:
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one or more computer-readable nontransitory storage devices and program instructions stored on at least one of the one or more storage devices, the program instructions comprising; program instructions to detect that the cluster cannot handle the client requests with a predetermined level of performance, and in response, automatically request configuration information for another server that is not currently active in the cluster, to configure the load balancing program for adding the other server to the cluster to handle client requests; and program instructions to automatically configure the load balancing program for the cluster to add the other server to the cluster in accordance with the configuration information received for the other server. - View Dependent Claims (7, 9, 10, 11)
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8. A computer program product for configuring a load balancing program for a cluster of servers to dispatch client requests to the servers in the cluster, the computer program product comprising:
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one or more computer-readable nontransitory storage devices and program instructions stored on at least one of the one or more storage devices, the program instructions comprising; program instructions to detect that the cluster cannot handle the client requests with a predetermined level of performance, and in response, automatically request configuration information for another server that is not currently in the cluster, to configure the load balancing program for adding the other server to the cluster to handle client requests; and program instructions to automatically configure the load balancing program for the cluster to add the other server to the cluster in accordance with the configuration information received for the other server. - View Dependent Claims (12, 13, 14, 15)
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Specification