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Synchronize Health Checks for a Highly Available Converged Application Server Platform Supporting Correlated Protocols and Converged Applications on Proxy Server

IP.com Disclosure Number: IPCOM000202002D
Publication Date: 2010-Nov-30
Document File: 3 page(s) / 82K

Publishing Venue

The IP.com Prior Art Database

Abstract

The disclosure describes synchronizing health checks for a Highly Available Converged Application Server Platform Supporting Correlated Protocols and Converged Applications on Proxy Server. The incoming messages are routed appropriately to a truly available server that ensures each of the protocol stack is available in a converged proxy or application server

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Synchronize Health Checks for a Highly Available Converged Application Server Platform Supporting Correlated Protocols and Converged Applications on Proxy Server

Typically the load balancers are configured to direct health check messages Session Initiation Protocol (SIP), Hypertext Transfer Protocol (HTTP) onto converged servers every few seconds (to real time availability every 1 second) that checks the health of a proxy or application server by responding individually to heath check messages, without any synchronization of response for an overall health of a converged application (e.g click-to dial, Push-to talk, Multiplayer gaming etc.)

One solution is to check health of a converged proxy or application server for each individual protocol health check message. The problem is health check for one protocol may look fine, but the other protocol health check response may fail. For a converged application environment, this means it is partial processing and the remaining functions fail and resulting single point of failure.

The other solution is to health check proxy server on a single protocol either by using HTTP or SIP for a converged proxy server. For a positive response from Proxy, the IP sprayer distributes the requests, and for a negative response, the requests will be directed to alternate server. Since it is not checking the true availability of converged application, it could result in message failures for the ones that are only half available.

With the advent of application servers such as Websphere Application Server supporting development and deployment of converged servlet applications using SIP, HTTP or other custom protocols, it has become a necessity to support the entire system with a cohesive approach. In o...