trinodb/trino

access public S3 storage anonymously

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#27512 opened on Nov 30, 2025

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 (7 comments) (0 reactions) (0 assignees)Java (9,113 stars) (2,678 forks)batch import
good first issue

Description

How to access parquet in public S3 storage anonymously with Trino? Was that removed?

Old thread showing how it was once possible: https://github.com/trinodb/trino/issues/15259

Contributor guide

Tech stack
javasqlaws
Domain
databackend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
basic Trino knowledgeAWS S3 concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55
Research direction
Investigate the referenced old issue (#15259) which previously documented how to access public S3 anonymously. Check the current Trino source code for S3 connector configuration, particularly any changes that might have removed anonymous access support. Review recent commits and documentation to identify if it's a regression or if the feature was intentionally deprecated. Test with a public S3 bucket using the current Trino version to verify the behavior.