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Possible to bypass Heroku's free plan's “Sleeps after 30 mins of inactivity” with console.logs?

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问题 Heroku has a free plan, as outlined here: https://www.heroku.com/pricing One of the drawbacks of the free plan is that the server goes to sleep after 30 minutes of inactivity. Is it possible to bypass this if I have a console.log("stay awake"); occur every 20 minutes? Thanks. 回答1: It is not possible to bypass that limit - in a sense that all your services will likely get shut down before the end of the month for much longer than 30 minutes if you do that all the time - but you can keep your

Stopping/starting an application pool and site on a server

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问题 I would like to write a script and run it from my local PC to stop and start an application pool and site that exists on a server. Value of App Pool and Site - Test Value of server - SERVER1 Any guidance would be much appreciated. 回答1: Run Command Prompt with Administrative rights, and type the following: C:\Windows\System32\inetsrv\appcmd start apppool /apppool.name:"MYAPPPOOLNAME" or use the stop command. You could save this in a batch file, but it must be executed with higher privileges.

Windows server 2008下配置tomcat到系统服务方法及一般问题解决办法

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最近开始接触Windows服务器的配置和使用。服务器主要目的是部署实验室的项目测试网站，所以就需要tomcat的支持。但是每次都要手动启动tomcat觉得很麻烦，所以就尝试将tomcat添加到系统服务，并跟随服务器启动。首先是下载最新版的tomcat： tomcat8：http://tomcat.apache.org/download-80.cgi 直接下载32位解压版的tomcat，下载完成后解压就ok 然后通过cmd进入到tomcat的bin目录下，输入 “service.bat install” 。 4.安装成功后便可在服务中找到该服务，右键属性将其修改为自动启动即可安装到这里就差不多结束了，下面是安装时经常出现的问题，自己在第一次安装时，遇到了很多问题，在这里就把常见的问题整理一下在将tomcat安装到系统服务中时，安装成功便会出现安装成功的提示，如果安装失败，先执行service.bat remove 移除已安装的tomcat。安装完成后在服务中无法启动服务，出现如下情况错误代码可能为0或者1，因为自己没有遇到错误代码为0的情况，所以错误代码为0的解决方案，来自其他博客。错误代码为0时： http://www.iteye.com/problems/58985 () 错误代码为1时：进入tomcat的目录，logs文件夹下查看错误日志。从日志中可以看出来

Start an application at system start without login

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问题 We have a new server running and we got some new programs doing import routines. So far so good... But there is one program that is put into autostart folder . So it doesn't run until admin logs in and it stops if we logout . I'd like to put this one into a seperate session so it may work without any interaction by simply starting it with the task scheduler at startup. Is this the right way to do this? Is it safe if I log in later and log out? Many thanks! Edit : The applications shows as a

PHP Firebase help - Set up JWT

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问题 On my server I am running a few PHP files that read my Firebase Realtime Database. According to Firebase's documents I need to set up custom token to get my Firebase PHP Client running. The Firebase document says I need to return this; return JWT::encode($payload, $private_key, "RS256"); How exactly do I reference the JWT class? I downloaded a JWT library but I am not sure how to implement this into my project. Any help would be great, I am mainly a mobile developer and have little experience

Windows Server AD功能介绍

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在 Windows Server 2000、2003 和2008 中，管理员使用各种命令行工具和管理控制台管理单元连接到其 Active Directory 域进行管理工作，通常我们习惯于使用MMC界面，但是很多高级管理操作只能在CMD下完成，而CMD下的命令经常成为我们的困惑。并且基于CMD的脚本的编写对于系统管理员要求很高。为了解决这种情况Windows Server 2008 R2 中的 Active Directory 模块合并了一组 cmdlet的Windows PowerShell 模块.通过使用这些cmdlet，可在单一的独立程序包中管理您的 Active Directory 域、Active Directory 轻型目录服务 (AD LDS) 配置集和 Active Directory 数据库装载工具实例。首先让我们了解一下PowerShell的功能，系统维护、管理中大家常在命令提示符(cmd.exe)下进行操作，对Windows PowerShell可能还是比较陌生。Windows PowerShell将成为CDM的继任者，是下一代命令行工具。Windows PowerShell目前最高版本为2.0，并且已经集成到Windows Server 2008及Windows 7中。Windows PowerShell使得IT管理员更容易地控制系统管理和加速自动化

Why node server has to be restart on file change?

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问题 Why is it necessary to restart a NodeJS server when there is a file change? Do other servers like Apache, IIS, nginx require this as well or can they restart automatically? 回答1: You don't say which files you're talking about so I'll mention the issues with a couple different types of files. For Javascript files that make up your Javascript code for your node.js server, node.js is a continuously running server. That means when the server starts up, it parses your Javascript code into memory

“Connection reset by peer” when benchmarking a simple Rust HTTP server with ab

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问题 I'm trying to write an extremely simple concurrent server in Rust to play with the language's concurrency primitives and its threading model. Here's my code: use std::io::prelude::*; use std::io::Result; use std::net::{TcpListener, TcpStream, Shutdown}; use std::sync::{Arc, Mutex}; use std::thread; fn handle_client(mut stream: TcpStream) -> Result<()> { try!(stream.write(b"HTTP/1.0 200 OK\r\nContent-Type: text/plain\r\nContent-Length: 5\r\n\r\nPong!\r\n")); // try!(stream.shutdown(Shutdown:

ubuntu 下启动mysql 服务出现 The server quit without ...

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这个错误是如何产生的呢? 启动mysql 为什么会报 The server quit without updating PID file(....pid ) 产生的原因有几种, 1:配置文件出现错误my.cnf 2:/usr/local/mysql/data 文件夹的权限问题 3:进程已存在 mysql 的服务首先说说楼主的遭遇, 由于配置 mysql 默认编码格式的时候出现配置错误, 导致启动mysql (后来才想起来我改过配置文件了) The server quit without updating PID file(updat file .....pid ) 悲催的折腾到2点多,google 查各种资料..于是便有了上面几个总结问题1 的解决: 由于我当时脑抽了估计,居然改/usr/local/mysql/my.cnf 配置文件,导致后来才发现这里改动过了, 但是mysql 启动的时候,我觉得应该是这样进行查找my.cnf 的首先 /etc/my.cnf 是否存在 if( true): 读取/etc/my.cnf else: 读取/usr/local/mysql/my.cnf | /usr/local/mysql/my.cnf~ 检查发现 my.cnf 没问题,于是问题1 忽略( 结果就是折腾到2点,忽略了/usr/local/mysql/my.cnf 的检查

Docker not expose ports for node and webpack dev-server

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I have MacOS High Sierra and my goal is to run node web-applications without installation node on macos (I wanna use docker to do it). That web-application is usually angular-webpack (compilation + run dev serwer). Dockerfile : FROM node WORKDIR /work CMD while true; do sleep 10000; done EXPOSE 3002 The line CMD while ... makes that container will be not killed by docker after run it - this allow us to "login" into container (by docker exec -it... ). Bash script run.cmd which run container: set -e docker build -t node-cmd . docker rm -f node-cmd |: docker run -d --name node-cmd -p 3002:3002 -v

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