METHOD AND SYSTEM FOR REDUCING MESSAGE PASSING FOR CONTENTION DETECTION IN DISTRIBUTED SIP SERVER ENVIRONMENTS

摘要

A method, a system, and a computer program product are provided for reducing message passing for contention detection in distributed SIP server environments. The method is implemented in a computer infrastructure having computer executable code tangibly embodied on a computer readable storage medium having programming instructions operable to determine that a first site is waiting for a first object locked by a second site. The programming instructions are further operable to determine that a third site is waiting for a second object locked by the first site, and to send a first probe to the second site to determine whether the second site is waiting. A second probe is received and indicates that a site is waiting for an object locked by the first site. The second probe further indicates a deadlock in a distributed server environment to be resolved.

主权项

1. A method comprising:
obtaining, by a computer processor, a local Wait-For Graph (WFG) at a first site of a distributed Session Initiation Protocol (SIP) server environment; determining, by the computer processor, that the first site is waiting for a first object locked by a second site of the distributed SIP server environment based on the local WFG at the first site; receiving, by the computer processor, an indication of a deadlock in the distributed SIP server environment to be resolved; and resolving, by the computer processor, the deadlock in the distributed SIP server environment by victimizing a first transaction at the first site that is waiting for the first object.