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Docker Hub 镜像加速器

国内从 Docker Hub 拉取镜像有时会遇到困难，此时可以配置镜像加速器。Docker 官方和国内很多云服务商都提供了国内加速器服务。

Dockerized 实践 https://github.com/y0ngb1n/dockerized

配置加速地址

Ubuntu 16.04+、Debian 8+、CentOS 7+

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ThreadPool Growth: Some Important Details

The CLR ThreadPool has two types of threads - "Worker" and "I/O Completion Port" (aka IOCP) threads.

• Worker threads are used when for things like processing Task.Run(…) or ThreadPool.QueueUserWorkItem(…) methods. These threads are also used by various components in the CLR when work needs to happen on a background thread.
• IOCP threads are used when asynchronous IO happens (e.g. reading from the network).

The thread pool provides new worker threads or I/O completion threads on demand (without any throttling) until it reaches the "Minimum" setting for each type of thread. By default, the minimum number of threads is set to the number of processors on a system.

Once the number of existing (busy) threads hits the "minimum" number of threads, the ThreadPool will throttle the rate at which is injects new threads to one thread per 500 milliseconds. This means that if your system gets a burst of work needing an IOCP thread, it will proces

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How to setup an Outline VPN Server on Ubuntu 16.04 Server

This guide will show you how to install Outline Server on an Ubuntu 16.04 Server, use Outline Manager for Windows and connect to your Outline Server on Windows and Anroid.

Install Outline Manager

Outline Manager supports Windows, macOS and Linux.

Outline Manager for Windows

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Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

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#!/usr/bin/env bash
# Install the latest version of git on CentOS 6.x
 
# Install Required Packages
sudo yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel
sudo yum install  gcc perl-ExtUtils-MakeMaker
 
# Uninstall old Git RPM
sudo yum remove git
 

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#Data Quality###

##1. Definition http://en.wikipedia.org/wiki/Data_quality

Reference:

• [1]http://www.slideshare.net/OpenDataSupport/open-data-quality-29248578
• [2]http://www.slideshare.net/dba_alex/data-quality-overview?related=1
• [3]http://www-01.ibm.com/software/data/quality/

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <!-- Replace the group ID with your group ID -->
  <groupId>com.mycompany.hadoopproject</groupId>
  <!-- Replace the artifact ID with the name of your project -->
  <artifactId>my-hadoop-project</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

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Enable Shared Folders on vmware Fusion (4.x)+ (Example OS: Linux Ubuntu 12.x as guest OS)

1. First update your linux system:
sudo apt-get update
sudo apt-get install -y build-essential
sudo aptitude -y safe-upgrade

2. Reboot your system just in case you have a new kernel
sudo shutdown -r  now