SYSTEM Cited by 1 source

Tron (Yelp)

Tron is Yelp's in-house batch processing and job scheduler, open-sourced at github.com/Yelp/Tron. Used across Yelp to run scheduled jobs and workflows, including the daily S3 Server Access Logs compaction pipeline and related data-engineering batch jobs.

Role on the wiki

Tron is the orchestration substrate underneath Yelp's batch data jobs. Named role in the 2025-09-26 post: "Tron, Yelp's in-house batch processing system, runs daily and converts the previous day's logs to parquet format via Athena insertion queries."

In the same SAL pipeline:

• Drives the daily compaction job that runs Athena INSERT queries across all monitored buckets.
• Drives the weekly access-based-retention job that joins S3 Inventory with SAL.
• Coordinates the S3 Batch Operations manifest build and direct per-object tagging for lifecycle expiration.

Seen in

• sources/2025-09-26-yelp-s3-server-access-logs-at-scale — Tron named as the daily batch runner for the SAL compaction pipeline; responsible for issuing parallel Athena queries, orchestrating the queue-processing flow (location query → idempotent insertion → verification → tagging), and handling TooManyRequestsException retries.

Related

• systems/yelp-s3-sal-pipeline — canonical Tron workload documented on the wiki.
• systems/yelp-spark-etl — separate in-house orchestration package specifically for Spark ETL; the two are complementary (Tron at the scheduler altitude, spark-etl at the feature-DAG altitude).
• companies/yelp