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goim v2.0

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goim is an im server writen in golang.

Features

  • Light weight
  • High performance
  • Pure Golang
  • Supports single push, multiple push and broadcasting
  • Supports one key to multiple subscribers (Configurable maximum subscribers count)
  • Supports heartbeats (Application heartbeats, TCP, KeepAlive, HTTP long pulling)
  • Supports authentication (Unauthenticated user can't subscribe)
  • Supports multiple protocols (WebSocket，TCP，HTTP）
  • Scalable architecture (Unlimited dynamic job and logic modules)
  • Asynchronous push notification based on Kafka

Architecture

arch

Quick Start

Build

    make build

Run

    make run
    make stop

    // or
    nohup target/logic -conf=target/logic.toml -region=sh -zone=sh001 -deploy.env=dev -weight=10 2>&1 > target/logic.log &
    nohup target/comet -conf=target/comet.toml -region=sh -zone=sh001 -deploy.env=dev -weight=10 -addrs=127.0.0.1 2>&1 > target/logic.log &
    nohup target/job -conf=target/job.toml -region=sh -zone=sh001 -deploy.env=dev 2>&1 > target/logic.log &

Environment

    env:
    export REGION=sh
    export ZONE=sh001
    export DEPLOY_ENV=dev

    supervisor:
    environment=REGION=sh,ZONE=sh001,DEPLOY_ENV=dev

    go flag:
    -region=sh -zone=sh001 deploy.env=dev

Configuration

You can view the comments in target/comet.toml,logic.toml,job.toml to understand the meaning of the config.

Dependencies

Discovery

Kafka

Document

Protocol

English

中文

Examples

Websocket: Websocket Client Demo

Android: Android

iOS: iOS

Benchmark

benchmark

Benchmark Server

CPU Memory OS Instance
Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz DDR3 32GB Debian GNU/Linux 8 1

Benchmark Case

  • Online: 1,000,000
  • Duration: 15min
  • Push Speed: 40/s (broadcast room)
  • Push Message: {"test":1}
  • Received calc mode: 1s per times, total 30 times

Benchmark Resource

  • CPU: 2000%~2300%
  • Memory: 14GB
  • GC Pause: 504ms
  • Network: Incoming(450MBit/s), Outgoing(4.39GBit/s)

Benchmark Result

  • Received: 35,900,000/s

中文

English

LICENSE

goim is is distributed under the terms of the MIT License.