Zheaoli

import socket
import time

s = socket.socket()
host = "127.0.0.1"
port = 12345

s.connect((host, port))
print(s.recv(1024).decode())
time.sleep(10000000)

sijie

This doc demonstrates how to do geo-replication across multiple pulsar clusters without a global configuration store (zookeeper).

This demo is using docker-compose to start 3 pulsar clusters. Each pulsar cluster has 1 zk, 1 bk, and 1 broker. The docker compose file can be found at https://gist.github.com/sijie/63737459112471a82957ae20bd78adb5.

The information of all the three clusters is listed in the following table:

	zk	configuration store	broker
beijing	zk-beijing	zk-beijing	broker-beijing

aliesbelik

Moved to git repository: https://github.com/aliesbelik/load-testing-toolkit

Benchmarking & load testing

Tools to benchmark & load-test your code or services

http/s

• apachebench (ab) - Standalone apachebench (ab), Apache HTTP server benchmarking tool. C
• httperf - A tool for measuring web server performance. C

akirattii

Check running mysql container:

$ sudo docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
26137efa979f        mysql               "docker-entrypoint..."   8 months ago        Up 10 minutes       0.0.0.0:3306->3306/tcp   container-mysql

Check docker container mysql version:

$ sudo docker exec container-mysql mysqld --version`
mysqld  Ver 5.7.15 for Linux on x86_64 (MySQL Community Server (GPL))

aklap

Resolving missing link to libcrypto openssl on OSX from: http://stackoverflow.com/questions/38670295/brew-refusing-to-link-openssl

brew update

brew install openssl

ln -s /usr/local/opt/openssl/lib/libcrypto.1.0.0.dylib /usr/local/lib/

ln -s /usr/local/opt/openssl/lib/libssl.1.0.0.dylib /usr/local/lib/

lhcpig

#!/bin/sh

nohup /usr/bin/java -jar $1 >> $2 &

kevinkindom

Python Socket 编程详细介绍

Python 提供了两个基本的 socket 模块：

• Socket 它提供了标准的BSD Socket API。
• SocketServer 它提供了服务器重心，可以简化网络服务器的开发。

下面讲解下 Socket模块功能。

Socket 类型

crisidev

KEY=XXXXXXXXXXXX
HOST="https://metrics.crisidev.org"

mkdir -p dashboards && for dash in $(curl -k -H "Authorization: Bearer $KEY" $HOST/api/search\?query\=\& |tr ']' '\n' |cut -d "," -f 5 |grep slug |cut -d\" -f 4); do 
  curl -k -H "Authorization: Bearer $KEY" $HOST/api/dashboards/db/$dash > dashboards/$dash.json 
done

GiaoGiaoCat

// 检测浏览器的 User Agent 应该是非常简单的事情
// 微信在 Android 下的 User Agent
mozilla/5.0 (linux; u; android 4.1.2; zh-cn; mi-one plus build/jzo54k) applewebkit/534.30 (khtml, like gecko) version/4.0 mobile safari/534.30 micromessenger/5.0.1.352

// 微信在 iPhone 下的 User Agent
mozilla/5.0 (iphone; cpu iphone os 5_1_1 like mac os x) applewebkit/534.46 (khtml, like gecko) mobile/9b206 micromessenger/5.0

// 通过javascript判断
// 很容易看出来，微信的 User Agent 都有‘micromessenger’字符串标示，我们判断是否含有这些字符串就OK了
function isWeixinBrowser(){

tuxfight3r

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line