V2ray-core: A outbound of load balancing

Created on 10 Nov 2017 · 9Comments · Source: v2ray/v2ray-core

可能有一些外部工具用于实现出口的负载平衡，但希望能在V2Ray里面实现这个功能从而方便配置，而且outbound好像支持proxySettings参数来指向其他outbound作为出口。

我建议提供三种选择模式，每个外出的链接根据选择模式由选择器选出一个作为出口
1.等概率，列出一堆作为outbound的数组，然后每次外出链接建立时随机选出一个。
2.按比例，列出一个以0.01~1的数字为键，outbound的tag为值的对象数组，键的和为1。每次外出链接建立时根据前几次按比例随机抽选。
3.轮盘式，列出一堆作为outbound的数组，然后每次外出链接建立时轮流选出一个，循环使用。

同时建立一个固定出口机制，一个特定目的地址和端口为唯一标记，第一次建立时记下选中的出口，之后每次建立同一个标记的链接刷新接触时间和分配相同的出口，直到超过特定时间或出口无法建立（链接出错）时消除该记录，重新选择出口。

以上为我的建议。

Stale

Source

Cwek

Most helpful comment

Active Health Checks should be one of them. If one server is down. It can be disabled automatically. The config may seems like this:

{
  "protocol": "protocol",
  "settings": {
    "servers": [{
        "sth": "is here",
        "health_check": {
            "max_fails": 5,
            "period": 60, // 5 times in 60 seconds
            "slow_start": 300 // the server is available again when it ups for 300 seconds   
        }
      }
    ]
  }
}

BTW, max connections config is also a good choice to blance proxy servers, for example:

{
  "protocol": "protocol",
  "settings": {
    "servers": [{
        "sth": "is here",
        "max_conns": "50"
      },
      {
        "sth": "is here",
        "max_conns": "20"
      }
    ]
  }
}

Ideas from nginx.

KazamaSion on 14 Dec 2017

👍4

All 9 comments

Active Health Checks should be one of them. If one server is down. It can be disabled automatically. The config may seems like this:

{
  "protocol": "protocol",
  "settings": {
    "servers": [{
        "sth": "is here",
        "health_check": {
            "max_fails": 5,
            "period": 60, // 5 times in 60 seconds
            "slow_start": 300 // the server is available again when it ups for 300 seconds   
        }
      }
    ]
  }
}

BTW, max connections config is also a good choice to blance proxy servers, for example:

{
  "protocol": "protocol",
  "settings": {
    "servers": [{
        "sth": "is here",
        "max_conns": "50"
      },
      {
        "sth": "is here",
        "max_conns": "20"
      }
    ]
  }
}

Ideas from nginx.

KazamaSion on 14 Dec 2017

👍4

The config file looks like:

{
  "protocol": "balanout",  
  "tag": "tag",
  "settings": {
     "switchType" : "equiprobability", //equiprobability, proportionally, roulette
     "outbounds" : ["outbound_tag1", "outbound_tag2", ...], //if switchtype is equiprobability or roulette
                           {"0.1":"outbound_tag1", "0.2":"outbound_tag2", ...  }, //if switchtype is proportionally
     "outlinkFixation" : true, //switch to control the fixation of outbound when it go out in the frist time.
     "fixationCleanInterval" : 86400 //the time to clean the relation of the outlink and outbound which it use. unit is second
  },  
  "proxySettings": null //can't be set beacause it use the same function of the outbound proxy
}

Cwek on 15 Dec 2017

An alternative way is to add a routing rule that will match each connection with a given probability, or by a given pattern. Idea from iptables.