# didi/DDMQ

DDMQ is a distributed messaging product with low latency, high throughput and high availability.

Repository: https://github.com/didi/DDMQ
Canonical: https://ross.abutalabs.com/products/ddmq
Language: Java
License: Apache-2.0
License Family: permissive
Archived: true
Last push: 2023-10-09T06:49:51+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2806, "days_push": 1059, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1316, forks 334 (observed 2026-08-28T04:04:20.806089+00:00)

## What it is
DDMQ is a distributed messaging middleware built by DiDi on top of Apache RocketMQ, offering low-latency, high-throughput, highly available messaging with P2P and pub/sub models. It supports real-time, delayed, and transactional messaging, multiple storage engines, multi-language SDKs, and a web console for management.

## Use cases
- decouple microservices with pub/sub messaging
- send delayed messages for scheduled tasks
- implement transactional messaging across services
- stream high-throughput events between systems
- self-host a message queue with a web console
- consume messages from PHP, Go, Python, or C++ clients

## When to choose
- you need a RocketMQ-based queue with delayed and transactional messaging
- you want multi-language client SDKs and an easy web console
- you run large-scale distributed systems needing low-latency messaging

## When to avoid
- you want a lightweight single-broker setup without Zookeeper/MySQL dependencies
- you need a fully managed cloud messaging service
- you need cutting-edge RocketMQ 5.x features or very recent community activity

## Facets
- artifact type: service
- maturity: maintenance
- function: message-queue, streaming, monitoring, webhook
- domain: microservices, backend, big-data
- platform: jvm, self-hosted
- tags: pub-sub, rocketmq, kafka, delayed-messages, transactional-messaging, message-broker, multi-language-sdk, messaging, linux, macos, docker

## Member repositories
- didi/DDMQ (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:20.806089+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:48:27.936373+00:00, confidence not recorded.
  - readme: https://github.com/didi/DDMQ (fetched 2026-08-28T04:04:20.806089+00:00, sha 252561a3f9b6)
- Data as of 2026-08-30T08:39:29.467469+00:00.