apache/hudi

Support for writing to EMRFS

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#14404 opened on Nov 30, 2025

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area:usabilityarea:writerfrom-jiragood first issuepriority:highrelease-0.6.0type:feature

Description

https://github.com/uber/hudi/issues/588

JIRA info

Comments

24/Dec/19 17:24;vinoth;This involves testing Hudi with emrfs and filing follow up issue or a small PR, to enable emrfs scheme under StorageSchemes enum;;;

Contributor guide

Tech stack
javaaws
Domain
backenddata
Issue type
feature
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.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Understanding of Hudi's StorageSchemes enumBasic knowledge of Amazon EMRFS
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Examine the StorageSchemes enum in the Hudi codebase (likely in hudi common module) to understand how existing storage schemes like S3, HDFS, etc. are registered. Then, implement support for the EMRFS scheme by adding a new entry to the enum and ensuring that Hudi's file system operations (reads/writes) work with EMRFS. Refer to the linked issue https://github.com/uber/hudi/issues/588 and JIRA HUDI 4 for context. Test the implementation with an EMR cluster that uses EMRFS.