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PYSPARK โ€ข LESSON 180

Fault-Tolerant Checkpointing with checkpointLocation

Why and how do we configure checkpointLocation to guarantee exactly-once processing across cluster failures?

Productionโฑ 2 Minutesโญ 1180 XP
๐Ÿค” THE QUESTION

Why and how do we configure checkpointLocation to guarantee exactly-once processing across cluster failures?

๐Ÿ’ก WHAT IS IT?

checkpointLocation persists stream read offsets, state stores, and commit logs to durable storage.

๐ŸŽฏ WHAT IS IT USED FOR?

Guaranteeing fault tolerance and exactly-once processing guarantees across cluster reboots and spot restarts.

๐Ÿ’ป EXAMPLE
query = streaming_df.writeStream \
    .format("parquet") \
    .option("checkpointLocation", "s3://checkpoints/pipeline_01") \
    .option("path", "s3://silver/stream_output") \
    .start()

๐ŸŽฏ Mission Objectives

Practice typing production-grade PySpark code for Fault-Tolerant Checkpointing with checkpointLocation.

  • โœ“ Configure durable S3 checkpointLocation
  • โœ“ Enable exactly-once stream state recovery
  • โœ“ Ensure fault-tolerant stream execution