Where can I learn watermarks?

Watermarks is taught across 4 courses on Petascale Labs, including "Flink for Stream Processing". The first chapter of every course is free to read, no account needed.

What concepts are related to watermarks?

Closely related topics include event time, exactly-once, idempotency, stateful streaming, stream processing.

Topic

Watermarks

Watermarks shows up across 4 courses in 3 layersof the data platform stack. Here's where it's taught, a free way to practice it, and what to learn next.

Where it's taught

Ingestion & Transport

Flink for Stream Processing

Event time, watermarks, state backends, checkpoints, savepoints, exactly-once sinks, Flink SQL and CDC.

12 ch · 4h 10m

1 free

Backfill Strategies for Lakehouses

Partition-aware, idempotent backfills into Iceberg/Delta alongside live streams, with reconciliation.

10 ch · 3h 30m

1 free

Compute Engines

Apache Spark: Streaming

DStreams, Structured Streaming, event time, watermarks, Kafka deep integration.

20 ch · 6h 40m

1 free

Orchestration & Pipelines

Idempotency and State

What 'safe to retry' actually means, where to keep state so retries don't lie, and why exactly-once is a marketing term. The six concepts senior engineers reach for without thinking.

6 ch · 1h 13m

1 free

Start learning watermarks free

The first chapter of every course is free to read — no account needed.

Start: Flink for Stream Processing →All strata

Where it's taught

Related topics

Start learning watermarks free