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fibos-alive

v1.0.2

Published

FIBOS alive module

Downloads

1

Readme

FIBOS 节点保活模块

模块作用

fibos-alive 可以让你的 FIBOS 节点在异常退出时(kill、coredump),能够立刻拉取最新的区块备份数据并恢复节点运行。避免因为异常退出导致你的节点不可用的情况,使你的 FIBOS 节点永远处于「活」的状态。

快速开始

1.1 安装 fibos-alive 模块

fibos --install fibos-alive

1.2 添加 fibos-alive 模块

//添加节点保活模块
require("fibos-alive")({
    backup_url:'http://ghost.bp.fo'
})
let fibos = require('fibos');
...
fibos.start();

实例代码

1.3 节点启动

在你的启动命令中增加 --keepalive ,例如:fibos seed.js --keepalive

参数说明

2.1 配置参数

| 参数 | 默认值 | 含义 | | --- | --- | --- | | backup_url | http://ghost.bp.fo | 备份文件获取地址 |

2.2 启动参数

| 参数 |含义 | | --- | --- | | --keepalive | 以保护模式启动节点 |

实现原理

使用 fibjs 的 process.start() 方法将节点启动程序以子进程的形式启动。 节点程序启动后,监听节点程序信号。当监听到程序异常退出信号时,自动获取最新区块数据后重启节点服务。