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Cheatsheet: Dataflow

Revision time: 4 mins

Topic Overview

Deploy, run, and scale Apache Beam pipelines on Google Cloud Dataflow.

Syntax Snapshot

python
# Execute pipeline on cloud runner
python pipeline.py \
  --runner=DataflowRunner \
  --project=my-gcp-project \
  --region=us-central1 \
  --temp_location=gs://my-bucket/temp \
  --staging_location=gs://my-bucket/staging

Key Points

  • Fully managed, serverless runner for Apache Beam.
  • Autoscaling: Automatically allocates worker VMs based on throughput and system lag.
  • Streaming Engine: Offloads state storage to GCP managed engine.
  • Flex Templates: Packaged inside Docker containers for dynamic configuration.

Production Recommendations

Developer Checklist
Always enable Streaming Engine and configure autoscale worker limits (max_num_workers) to manage resource boundaries.
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