OutofOrderEvents
OutofOrderEvents is a term used to describe data items in a stream whose event timestamps do not arrive in the same order as their generation. In other words, an event with an earlier timestamp may be received after events with later timestamps. This pattern arises in many distributed and real-time systems and can complicate time-based processing and analytics.
Causes of out-of-order events include network delays and jitter, clock skew between sources, multi-source ingestion, buffering
The main challenge is accurate event-time processing. If systems rely solely on processing time or assume perfectly
Common approaches to mitigate these issues include distinguishing event time from processing time, and using watermarks
Overall, handling OutofOrderEvents requires careful time semantics, monitoring of out-of-orderness, and deliberate architectural choices to achieve