pm2

Framework 以影像辨识为例，我们找个function输入一张图片，机器告诉我们这个图片里有什么样的东西。 在做这件事时，首先要准备一个 function set （集合），这个function里面有成千上万的function。举例来说，这个function在里面，有一个f1，你给它看一只猫，他就告诉你输出猫，看到一只狗就输出狗。有一个function f2他很怪，你给他看猫，他说是猴子；你给它看狗，他说是蛇。总之，先假设我们手上有一个function set，这个function set就叫做 model （模型）。 有了这个function set，接下来机器要做的事情是：他有一些训练的资料，这些训练资料告诉机器说一个好的function，它的输入输出应该长什么样子，有什么样的关系。你告诉机器说，现在这个影像辨识的问题里面，如果看到这个猴子图要输出猴子，看到这个猫的图也要输出猫，看到这个狗的图也要输出狗，这样才是对的。只有这些训练资料，你拿出一个function，机器就可以判断说，这个function是好的还是不好的。 机器可以根据训练资料判断一个function是好的，还是不好的。举例来说：在这个例子里面显然f1，他比较符合training data的叙述，比较符合我们的只是。所以f1看起来是比较好的，f2看起来是一个荒谬的function。以上讲的这个task叫做

I got a sailsjs app on a debian server. My only user is root, I installed everything in root (npm install, npm install sails -g, npm install pm2 -g). When I try to deploy it with my root user (sails lift --prod), I got permissions errors : Grunt :: Running "clean:dev" (clean) task Grunt :: Cleaning .tmp/public... Grunt :: Warning: Cannot delete files outside the current working directory. ** Grunt :: An error occurred. ** error: ------------------------------------------------------------------------ Aborted due to warnings. Running "clean:dev" (clean) task Cleaning .tmp/public...Warning:

在将公司的应用容器化时，遇到的问题。 之前，同事使用node.js 6版本运行，pm2启动js文件，一切正常。 但我一样将node.js 6版本安装，然后npm install pm2完成。 运行pm2时始终报错： .... async function (options) { 12:09:59 0|websocket | ^^^^^^^^ 12:09:59 0|websocket | SyntaxError: Unexpected token function 12:09:59 0|websocket | at createScript (vm.js:56:10) 12:09:59 0|websocket | at Object.runInThisContext (vm.js:97:10) 12:09:59 0|websocket | at Module._compile (module.js:549:2 .... 　　 之后，进行其它尝试，总是在async remove, await等这些地方报错。 今天描了一下安装的版本，发现pm2现在默认安装的是4.1.2版本， 问了同事，生产上安装的是3.2.2或3.5.1版本， 然后，将npm安装时，指定好pm2版本之后， 问题搞定。 npm --registry https://registry.npm.taobao.org

I have this Dockerfile ... FROM keymetrics/pm2:latest-alpine RUN apk update && \ apk upgrade && \ apk add \ bash COPY . ./ EXPOSE 1886 80 443 CMD pm2-docker start --auto-exit --env ${NODE_ENV} ecosystem.config.js How can I execute the CMD command using sudo ? I need to do this because the port 443 is allowed only for sudo user. The su-exec can be used in alpine. Do add it the package, if not already available, add the following to your Dockerfile RUN apk add --no-cache su-exec Inside your scripts you'd run inside docker you can use the following to become another user: exec su-exec <my-user>

Although the socket.io document said ' sticky session ' can make socket.io work with node cluster. I just can't make it work. I find pm2 had several issues opened against it, the closest solution I can find is this , "force to use websock option only", don't use sticky session at all. Has anyone had any experience that makes node cluster work with socket.io? ------- update -------- I checked the other two sticky session implementations mentioned here, sticky-session vs socket.io-sticky-session node js library ! Which is better? , find 'sticky-cluster' can do the job. Another lesson I learned

I have a website using nodejs. Problem is when user upload images the site stop working. That because of PM2 restart server when file change I think. How to solve this problem. thank you PM2 has special flag --ignore-watch flag. Try creating file process.json in the same directory where your app.js/index.js is and paste this: { "watch": ["server", "client"], "ignore_watch" : ["node_modules", "public/images"], "watch_options": { "followSymlinks": false } } More on that topic: http://pm2.keymetrics.io/docs/usage/watch-and-restart/ A simple explanation, from actual experience create a json file

　　因为工作中多个项目同步开发，vue公共前端模块需要共享，但是又不能传到公共npm上，所以需要搭建私有npm服务。经过调研，采用了sinopia的解决方案，具体搭建步骤如下： 　　1、Centos下安装npdejs： curl --silent --location https://rpm.nodesource.com/setup_5.x | bash - yum -y install nodejs 　　2、通过npm安装sinopia npm install -g sinopia 　　3、因为sinopia不再root账号下运行，故进入其他账号（我用的是app），然后启动sinopia sinopia 　　4、打开/home/app/.config/sinopia/config.yaml进行修改 # # This is the default config file. It allows all users to do anything, # so don't use it on production systems. # # Look here for more config file examples: # https://github.com/rlidwka/sinopia/tree/master/conf # # path to a directory with all