apache/dubbo

[Feature] Implement full zero-copy output for Dubbo Triple protocol

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#15597 opened on Jul 30, 2025

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 (3 comments) (0 reactions) (1 assignee)Java (41,524 stars) (26,453 forks)batch import
help wantedtype/enhancement

Description

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Apache Dubbo Component

Java SDK (apache/dubbo)

Descriptions

The main reason for implementing zero-copy output in the Dubbo Triple protocol is to significantly improve performance: it reduces multiple memory copies, lowers CPU and memory usage, and lessens GC pressure, resulting in lower latency and higher throughput for service communication—making it ideal for high-concurrency and large-scale distributed systems.

Related issues

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Are you willing to submit a pull request to fix on your own?

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Code of Conduct

Contributor guide

Tech stack
java
Domain
backendperformance
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
blocked
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Java I/ONettyDubbo RPC internalsZero copy concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Start by examining the current Triple protocol output implementation in the dubbo rpc triple module. Review Netty's zero copy capabilities and how to integrate them with Dubbo's serialization. Look at existing issues or PRs related to buffering and memory management in Dubbo, and discuss the design with maintainers on the issue thread.