socketcluster-SCC 负载均衡集群搭建

SCC简介：SCC是一组服务，可以轻松地将SocketCluster部署和扩展到任意数量的机器
SCC由以下服务组成：
socketcluster https://github.com/SocketCluster/socketcluster
scc-broker https://github.com/SocketCluster/scc-broker
scc-state https://github.com/SocketCluster/scc-state

1.下载代码
git clone https://github.com/SocketCluster/scc-state
git clone https://github.com/SocketCluster/scc-broker
git clone https://github.com/SocketCluster/socketcluster

2.切换到每个代码中执行 npm install

3.启动状态服务器scc-state

cd scc-state
node server

4.启动代理服务器

1.cd scc-broker
2.SCC_INSTANCE_IP='127.0.0.1' 3.SCC_STATE_SERVER_HOST='127.00.1' 4.SOCKETCLUSTER_SERVER_PORT='8888' node server

注意：2、3、4放在一行执行
SCC_INSTANCE_IP 运行是sockercluster服务的ip（官网的大坑，并没有要求)，不然会提示
Server xxxxxx at address undefinedon port 8888 joined the cluster
SCC_STATE_SERVER_HOST 运行scc-state服务的ip

5.启动sockercluster

cd socketcluster 
npm install -g socketcluster
socketcluster create myapp 
cd myapp
SCC_STATE_SERVER_HOST='127.0.0.1'SOCKETCLUSTER_PORT='8000' node server
SCC_STATE_SERVER_HOST='127.0.0.1'SOCKETCLUSTER_PORT='8001' node server

这是启动两个sockercluster实例 这时的这两个实例会共享通道

6.搭建负载均衡

git clone  https://github.com/SocketCluster/loadbalancer

npm install -g loadbalancer

修改config文件

vi config.json
{
  "sourcePort": 80,
  "balancerCount": 1,
  "targetDeactivationDuration": 60000,
  "sessionExpiry": 30000,
  "downgradeToUser": "someuser", 
  "stickiness": true,
  "targets": [
    {
      "host": "localhost",
      "port": 8000
    },
    {
      "host": "localhost",
      "port": 8001
    }
  ]
}

启动loadblancer

loadbalancer start --config my/path/config.json
loadbalancer stop  停止

当然服务在均衡也可以使用第三方的负载均衡软件，nginx，haproxy都可以实现。

此时访问http://localhost:80 就可以实现soketclusterde 负载均衡，共享通道了，如果需要增加机器只需要在新的机器上开启sockercluster个进程，注意开启时要指定scc-state的ip。