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EventTime

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Architect
Architect
Jun 10, 2020 · Big Data

Understanding Flink Time Notions: ProcessTime, EventTime, IngestionTime and Watermarks with Code Examples

This article explains the three time notions supported by Apache Flink—ProcessTime, EventTime, and IngestionTime—detailing their semantics, how Watermarks enable event‑time processing, and provides Scala code samples for configuring time characteristics, assigning timestamps, and generating Watermarks in a streaming job.

EventTimeFlinkScala
0 likes · 16 min read
Understanding Flink Time Notions: ProcessTime, EventTime, IngestionTime and Watermarks with Code Examples
Qunar Tech Salon
Qunar Tech Salon
Feb 20, 2019 · Big Data

Building Real-Time User Behavior Engineering with Apache Flink: Architecture, Features, and Implementation

This article introduces the design and implementation of a real‑time user behavior engineering platform at Qunar using Apache Flink, covering Flink's core characteristics, distributed runtime, DataStream programming model, fault‑tolerance, back‑pressure handling, event‑time processing, windowing, watermarks, and practical code examples for filtering, splitting, joining, and state management.

CheckpointDataStreamEventTime
0 likes · 18 min read
Building Real-Time User Behavior Engineering with Apache Flink: Architecture, Features, and Implementation