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License: Apache License 2.0

Java 83.48% Shell 6.03% Python 10.48%

dataflow-pubsub-dedup's Introduction

Deduplication with Cloud PubSub and Cloud Dataflow on Google Cloud Platform

This is the source code that accompanies the solution: Deduplication of messages with Cloud PubSub and Cloud Dataflow. This sample code demonstrates three approaches for deduplication:

  • PubSubIO: com.google.examples.dfdedup.DedupWithPubSubIO
  • Distinct transform: com.google.examples.dfdedup.DedupWithDistinct
  • Custom state based deduplication: com.google.examples.dfdedup.DedupWithStateAndGC

End to end pipeline

You can run the following end to end pipeline to explore deduplication behavior across all three approaches:

End to end flow

Setting up resources

NOTE: If you're new to GCP, please see quickstarts for Cloud PubSub, BigQuery and Cloud Dataflow

BigQuery

Use the schema files under bqschemas/ to create

Cloud PubSub

Running Python-based the data generator

Blah blah

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