崩溃后如何自动重新启动节点脚本 - 或启动该节点的 init.d 服务? [英] How to auto restart Node script - or init.d service starting that node - after crash?

问题描述

我目前正在运行 Raspbian 的 Raspberry PI 上运行 node.js 脚本.该 node.js 脚本在启动时启动，所以我只需要插入电路板即可.

I'm currently having a node.js script running on my Raspberry PI running Raspbian. That node.js script gets started at boot so I just have to plug in the board.

但是，如果脚本崩溃导致节点退出，我如何让引导服务(在 bood 启动节点脚本)在节点服务崩溃时自动重启?

But, if the script would crash resulting in the exit of node, how could I make the boot service (which starts the node script at bood) auto restart itself when the node service crashed?

这是我在 /etc/init.d 中的引导服务示例:

Here's an example of my bootservice in /etc/init.d:

#! /bin/sh
### BEGIN INIT INFO
# Provides:          MyScriptService
# Required-Start:    $all
# Required-Stop:     
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starts my node.js script.
### END INIT INFO

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin

. /lib/init/vars.sh
. /lib/lsb/init-functions

case "$1" in
  start)
    log_begin_msg "Starting my script"

    node /home/pi/myscript.js

    log_end_msg $?
    exit 0
    ;;
  stop)
    log_begin_msg "Stopping my script"


    log_end_msg $?
    exit 0
    ;;
  *)
    exit 1
    ;;
esac

更新:能够在 Node 内部自行修复它.https://stackoverflow.com/a/50413860/3037607

UPDATE: Been able to fix it myself within Node itself. https://stackoverflow.com/a/50413860/3037607

推荐答案

在对 Node 可能性进行更深入的搜索之后，我找到了一种方法来避免脚本崩溃，如果没有捕获到异常，只需重新启动一切:

After searching a bit deeper in the Node possibilities I found a way to just not make the script crash, and if an exception is not caught, just restart everything:

process.on('uncaughtException', function(err){
  console.log(err);
  restartMyScript();  
});

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