文章收藏

海盗中间件

https://mp.weixin.qq.com/s/pzAphmeg8eTnkic8GHGP7w
markdown指南

< http://note.youdao.com/iyoudao/?p=2411>

ruby 并行赋值的原理

# getlocal + newarray
_tmp = [c, a, b]
   
# expandarray
_tmp1 = _tmp[0]
_tmp2 = _tmp[1]
_tmp3 = _tmp[2]
   
# setlocal
a = _tmp1
b = _tmp2
c = _tmp3
   
作者：RednaxelaFX
链接：https://www.zhihu.com/question/54500937/answer/140120436
来源：知乎
著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。

kong_plugins

https://docs.konghq.com/0.14.x/plugin-development/file-structure/
github加速

< https://yq.aliyun.com/articles/36744>
```
  sudo killall -HUP mDNSResponder
```
godns

https://github.com/kenshinx/godns

lua install

curl -R -O http://www.lua.org/ftp/lua-5.2.3.tar.gz
tar zxf lua-5.2.3.tar.gz
cd lua-5.2.3
make macosx
sudo make install
   
brew install lua -- 自带luarocks 2.1.0.6-1
lua
> local cjson = require("cjson");
error loading module 'cjson' from file '/usr/local/lib/lua/5.3/cjson.so':
dlopen(/usr/local/lib/lua/5.3/cjson.so, 6): Symbol not found: _lua_objlen
Referenced from: /usr/local/lib/lua/5.3/cjson.so
Expected in: flat namespace
in /usr/local/lib/lua/5.3/cjson.so
stack traceback:
[C]: in ?
[C]: in function 'require'
stdin:1: in main chunk
[C]: in ?
luarocks remove lua-cjson
luarocks install lua-cjson 2.1.0-1 -- 这个版本work fine

PostgreSql

周正中（德哥）github

周正中（德哥）视频教程

PostgreSQL数据库内核分析-彭智勇，彭煜玮
brew 安装 mysql的坑问题是默认的plugin被设置成caching_sha2_password 安装过mysql8导致的问题，需要清理一下
```
 mysql>use mysql; 
 mysql>select user, host, plugin, authentication_string from user\G; 
```

  brew remove mysql
  brew cleanup
  rm -rf /usr/local/var/mysql

mac定时任务 https://www.jianshu.com/p/4addd9b455f2
后端架构师技术图谱

https://github.com/xingshaocheng/architect-awesome
聊一聊Spring中的线程安全，拓展了Bean的scope、ThreadLocalMap、WeakRefrence https://mp.weixin.qq.com/s/EqNiKIYnZ4VHiYHewx9UgA
精益数据分析，&拉姆斯菲尔德《已知与位置》(Known and Unknown)