Technical GlossaryData Engineering and AI Infrastructure
Stream Lag
TR: Akış Gecikme Farkı
In One Line
A core stream-health metric that expresses the delay gap between produced events and consumed events.
Stream lag is one of the core indicators of whether real-time behavior is actually being preserved in a streaming system. As consumers fall behind the stream, decision quality and freshness can degrade. This metric may indicate insufficient capacity, partition imbalance, or consumer-side failures. Healthy stream infrastructures must monitor lag continuously.
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