OIM Clustering: Keeping separate environments separate (Doc ID 1664736.1)

Last updated on AUGUST 30, 2023

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Purpose

 Oracle Identity Manager 11g incorporates several clustering technologies in order to ensure high-availability across its different components. Several of these technologies use multicast to discover other cluster nodes on the same subnet. For testing and development purposes, it is common to have multiple distinct OIM environments co-existing on the same subnet. In that scenario, it is essential that the distinct environments utilise separate multicast addresses, so that they do not talk to each other – if they do, they will confuse one another, and many things can go wrong. This problem is less common with production environments, since best practice dictates that the production environment should be on a separate subnet from development and test, and multicast traffic cannot transverse subnet boundaries without special configuration.

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