daemon

Docker Machine 简介

由 时光怂恿深爱的人放手 提交于 2020-01-01 13:26:16
Docker Machine 是什么？ Docker Machine 是 Docker 官方提供的一个工具，它可以帮助我们在远程的机器上安装 Docker，或者在虚拟机 host 上直接安装虚拟机并在虚拟机中安装 Docker。我们还可以通过 docker-machine 命令来管理这些虚拟机和 Docker。下面是来自 Docker Machine 官方文档的一张图，很形象哦！ ​ 本文将通过一系列 demo 来展示 Docker Machine 的主要使用场景。 安装 Docker Machine 安装 Docker Machine 前请先在本地安装 Docker。 Docker Machine 的安装十分简单，在 Ubuntu 中直接把可执行文件下载到本地就可以了。 $ curl -L https://github.com/docker/machine/releases/download/v0.12.0/docker-machine-`uname -s`-`uname -m` > /tmp/docker-machine $ chmod +x /tmp/docker-machine $ sudo mv /tmp/docker-machine /usr/local/bin/docker-machine 其中 v0.12.0 是最新的版本。当然 Docker Machine

celery: daemonic processes are not allowed to have children

由 て烟熏妆下的殇ゞ 提交于 2020-01-01 08:17:52
问题 In Python (2.7) I try to create processes (with multiprocessing) in a celery task (celery 3.1.17) but it gives the error: daemonic processes are not allowed to have children Googling it, I found that most recent versions of billiard fix the "bug" but I have the most recent version (3.3.0.20) and the error is still happening. I also tried to implement this workaround in my celery task but it gives the same error. Does anybody know how to do it? Any help is appreciated, Patrick EDIT: snippets

ubuntu server 9.04下编译安装nginx

由 妖精的绣舞 提交于 2020-01-01 06:01:15
首先致谢：本文大量参考了金山逍遥网系统架构师-张宴的 Nginx 0.7.x + PHP 5.2.10（FastCGI）搭建胜过Apache十倍的Web服务器（第5版）[原创] 一文，谢谢张宴为nginx推广普及所作的贡献。 之所以要在ubuntu server 9.04(以下简称us904)下编译安装nginx，是因为us904官方源中提供的版本有些旧，为nginx0.6.35,而当前nginx官方最新稳定版为0.7.61,最新开发版本为0.8.9（详见： http://www.nginx.org/ ），下面以0.8.9版为例进行nginx下的编译安装： 首先安装编译nginx所需的软件包： 1.Perl 5 Compatible Regular Expression Library - development files sudo apt-get install libpcre3-dev 2.SSL development libraries, header files and documentation sudo apt-get install libssl-dev 3.make 工具 sudo apt-get install make 创建启用nginx所使用的用户组和用户 sudo groupadd www sudo useradd -g www www sudo

Check if a process is running using PHP in Linux

由 ＊爱你＆永不变心＊ 提交于 2020-01-01 04:25:09
问题 I am using kannel to send SMS via PHP. I want to know how can I check if a particular process is running. For kannel to run, a process named bearerbox should be running all time. I want to check if this process is running or not. Because if the process is not running then a mail will be sent to me notifying me about it. 回答1: The easiest is to use pgrep , which has an exit code of 0 if the process exists, 1 otherwise. Here's an example. exec("pgrep bearerbox", $output, $return); if ($return ==

supervisor安装部署和使用实例

由 余生颓废 提交于 2020-01-01 00:22:17
Supervisord是用Python实现的一款非常实用的进程管理工具，类似于 monit ，monit和supervisord的一个比较大的差异是supervisord管理的进程必须由supervisord来启动，monit可以管理已经在运行的程序；supervisord还要求管理的程序是非daemon程序，supervisord会帮你把它转成daemon程序，因此如果用supervisord来管理nginx的话，必须在nginx的配置文件里添加一行设置daemon off让nginx以非daemon方式启动。(此段话引用链接： http://feilong.me/2011/03/monitor-processes-with-supervisord ) 注意：如果用supervisorctlstart nginx启动nginx显示错误nginx: ERROR(abnormal termination)，查看日志说是nginx已经启动，这就是因为nginx本身是daemon程序，要在nginx的配置文件中把它转为非daemon程序. 1.Supervisor安装： 1 # 安装 2 easy_install supervisor 也可采用离线安装的方式： 安装python 安装meld3-0.6.8.tar.gz 安装elementtree-1.2.6-20050316.tar

Daemonizing python's BaseHTTPServer

由 佐手、 提交于 2019-12-31 22:09:33
问题 I am working on a daemon where I need to embed a HTTP server. I am attempting to do it with BaseHTTPServer, which when I run it in the foreground, it works fine, but when I try and fork the daemon into the background, it stops working. My main application continues to work, but BaseHTTPServer does not. I believe this has something to do with the fact that BaseHTTPServer sends log data to STDOUT and STDERR. I am redirecting those to files. Here is the code snippet: # Start the HTTP Server

Daemonizing python's BaseHTTPServer

由 核能气质少年 提交于 2019-12-31 22:09:28
问题 I am working on a daemon where I need to embed a HTTP server. I am attempting to do it with BaseHTTPServer, which when I run it in the foreground, it works fine, but when I try and fork the daemon into the background, it stops working. My main application continues to work, but BaseHTTPServer does not. I believe this has something to do with the fact that BaseHTTPServer sends log data to STDOUT and STDERR. I am redirecting those to files. Here is the code snippet: # Start the HTTP Server

Run Sidekiq as daemon on Ubuntu

由 懵懂的女人 提交于 2019-12-31 18:57:08
问题 How can I run sidekiq as daemon on Ubuntu? If I run bundle exec sidekiq -D I get invalid option: -D , is there any way to run it without some other controller, like god, upstart...? 回答1: there's an option to Daemonize sidekiq, just pass -d option commit 回答2: Running as daemon won't restart the sidekiq if it crashes unexpectedly. One alternate way could be to run sidekiq as a service (An upstart job). If the system is rebooted than also the upstart job will run sidekiq. Here is the complete

adb socket not working and daemon

由 孤街浪徒 提交于 2019-12-31 13:29:35
问题 I am getting this type of error error: could not install smartsocket listener: cannot bind to 127.0.0.1:5037: Only one usage of each socket address (protocol/network address/port) is normally permitted. (10048) 1:34:26 PM could not read ok from ADB Server 1:34:26 PM * failed to start daemon * 1:34:26 PM error: cannot connect to daemon 1:34:26 PM 'C:\Users\MITESH SUTHAR\AppData\Local\Android\Sdk\platform-tools\adb.exe,start-server' failed -- run manually if necessary 1:38:14 PM Unable to

What are the behavioral differences between a daemon and a normal process?

由 社会主义新天地 提交于 2019-12-31 09:01:53
问题 I know that daemons run in the background mostly i.e. they require very less interaction from the user. Wikipedia lists some of the types of daemons that commonly exist: Dissociating from the controlling tty Becoming a session leader Becoming a process group leader Staying in the background by forking and exiting (once or twice). This is required sometimes for the process to become a session leader. It also allows the parent process to continue its normal execution. This idiom is sometimes
订阅 daemon