laixintao

from requests.adapters import HTTPAdapter, Retry
from requests import Session

retries = Retry(
  total=5, backoff_factor=1, status_forcelist=[502, 503, 504]
)
session = Session()  # reuse tcp connection
session.mount("http://", HTTPAdapter(max_retries=retries))
session.mount("https://", HTTPAdapter(max_retries=retries))

sljeff

下面都是说的无状态服务，有状态的类似，除了 1 2 再多一句话就能描述

最开始的状态：不云，但原生

没有好用的隔离方案，通常会在一个机器上部署一个东西：

1. 我们知道机器的资源（这个进程最多能用多少 CPU 内存）
   • 以便让服务运行在资源足够的地方
2. 我们知道哪些机器运行着这个服务（服务发现），服务可能直接监听 80 这样的端口

• 以便做负载均衡

XueshiQiao

/**
* 使用方法：
* 1. 用 Chrome 打开歌单的 web 页面（可以通过分享拿到链接，链接类似这样：http://music.163.com/playlist?id=xxx&userid=yyy）
* 2. 然后右键“检查”（如果有左上角有 device 选项，需要选择 Laptop 开头的，可以在 Edit/编辑 里添加，添加的时候注意 “User Agent string” 里选择 Desktop）
* 3. 在 console 里输入下面脚本，即可输出 “歌曲名 - 歌手名” 格式的内容：

    Springsteen - Eric Church
    Chattahoochee - Alan Jackson
    Baby Now That I Found You - Alison Krauss
    Check Yes or No - George Strait

dwitzig

Deploy k3s cluster on Vultr with RancherOS over ZeroTier network

How to deploy K3S cluster on RancherOS nodes connected via a Zerotier network.

Deploy master node

1. Update the master-deploy.sh with deployment vars

bessarabov

git log --author="Linus Torvalds" --date=iso | perl -nalE 'if (/^Date:\s+[\d-]{10}\s(\d{2})/) { say $1+0 }' | sort | uniq -c|perl -MList::Util=max -nalE '$h{$F[1]} = $F[0]; }{ $m = max values %h; foreach (0..23) { $h{$_} = 0 if not exists $h{$_} } foreach (sort {$a <=> $b } keys %h) { say sprintf "%02d - %4d %s", $_, $h{$_}, "*"x ($h{$_} / $m * 50); }'

lesonky

alias reload="source ~/.zshrc"
alias zshrc="code ~/.zshrc"
alias aliasrc="code ~/.setting/.alias"
alias del="rm -rf"
alias cls="clear"
alias useproxy="export https_proxy=http://127.0.0.1:7890 http_proxy=http://127.0.0.1:7890 all_proxy=socks5://127.0.0.1:7890"
alias unuseproxy="unset https_proxy http_proxy all_proxy"
alias gitproxy="git config --global https.proxy https://127.0.0.1:7890"
alias ungitproxy="git config --global --unset https.proxy"

ivanvermeyen

Update - 4 september 2020

Making multiple MySQL versions work with Homebrew was tricky to say the least. Fortunately there are 2 new easy ways that I learned of to achieve this.

DBngin app

As @4unkur and @henrytirla commented below, there is this extremely easy to use app called DBngin, which lets you setup multiple databases (not only MySQL) simultaneously using different ports:

https://dbngin.com/

seanbehan

'''
Run the following commands (bc. gists don't allow directories)

pip install flask django dj-database-url psycopg2

mkdir -p app/migrations
touch app/__init__.py app/migrations/__init__.py
mv models.py app/
python manage.py makemigrations
python manage.py migrate

jsheedy

asyncio + uvloop echo server benchmark

This is an attempt at a bare minimum client/server benchmark of asyncio with optional use of uvloop. On my 2015 macbook pro, I get almost 2.5X improvement using uvloop in the server.

The client runs PARALLEL tasks at once. Running only a single task results in about 1/8 the throughput of 100 simultaneous tasks.

# with uvloop
$ python client.py
satisfied 100000 requests in 1.41021 seconds (70911.42 reqs/s)

squarism

Tabs and Windows

Function	Shortcut
New Tab	⌘ + T
Close Tab or Window	⌘ + W (same as many mac apps)
Go to Tab	⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction	⌘ + Option + Arrow Key
Cycle iTerm Windows	⌘ + backtick (true of all mac apps and works with desktops/mission control)