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# Understanding How Data is Produced and Consumed

Transformation Hub's publish-subscribe messaging system uses SmartConnectors and Collectors to produce event data, and supports Logger, Recon, and ESM, as well as Apache Hadoop and other third-party consumers.

While Transformation Hub can support a very high event flow (millions of events per second), the event rate for each producer and consumer will generally be much smaller (tens of thousands of events per second). Actual event flow will depend on your specific implementation and tuning applied, as well as server resources available, such as memory and CPU.