This documentation is for WSO2 Stream Processor 4.1.0. View documentation for the latest release.

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This is a WSO2 SP deployment pattern where two identical setups of SP are run in two different datacenters for disaster recovery. The setups are typically maintained at two different physical locations to to minimize the risk of both the datacenters failing at the same time.

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Out of the two datacenters, only one datacenter publishes events. This datacenter is referred to as the active center, and the other datacenter is referred to as the passive datacenter. If the active datacenter fails, the previously passive datacenter becomes the active datacenter and starts publishing events from where the previous datacenter stopped.