The document describes Wix's use of Kafka and Greyhound to build a global data mesh. It addresses challenges of large scale traffic, hundreds of developers, and diverse tech stacks. Kafka and Greyhound provide a messaging platform and self-service APIs. Greyhound wraps Kafka for multiple languages. The data mesh supports cross-DC replication and producing to specific DCs. This allows events to be routed to where they are needed across Wix's infrastructure.
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