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Data Version Control Simple Tutorial (DAC)

Author: 曾令泽

创建dvc本地仓库

先创建git仓库，再创建dvc仓库

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" (N)Vim Configuration File
" vim  : place in $HOME/.vimrc
" nvim : place in $HOME/.config/nvim/init.vim
" $ ln -s $HOME/.config/nvim/init.vim $HOME/.vimrc
" General settings
" https://learnvimscriptthehardway.stevelosh.com/
" ---------------------------------------------------------------------------
" drop vi support - kept for vim compatibility but not needed for nvim
" Probably not needed with Vim 8+
"set nocompatible

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Braft Build Tour

Braft docs is very simple.

In order to rebuild braft, this tour guide note the steps to build braft successfully

Brpc

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# use the latest ubuntu environment (18.04) available on travis
dist: bionic

language: go

# You don't need to test on very old versions of the Go compiler. It's the user's
# responsibility to keep their compiler up to date.
go:
  - 1.16.x

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LBFS: A Low-bandwith Network File System

Link:https://pdos.csail.mit.edu/~benjie/papers/lbfs:sosp01.pdf

Forkbase's Pos-Tree index is inspired by this paper

Challenge:

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BoltDB 源码阅读笔记 （前置篇）

文章主要记录在阅读BoltDB源码前的一些前置知识储备

Go mmap

In computing, mmap is a POSIX-complianmt Unix system call that maps files or devices into memory. It is a method of memory-mapped file I/O

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FaRM : Fast Remote Memory 笔记

接着Mit 6.824 论文阅读, 下面记录，FaRM的特点及解决的问题，主要参考 Mit note

相对于整个FaRM系统，略过了很多东西，重点介绍 FaRM 选择的 optimistic concurrency control，如何保持强串行化

FaRM 特点

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Go: unsafe.Pointer 使用

一直很好奇那些用Go编写的System是如何去管理底层内存的。

最近在阅读BoltDB的源码，发现很多使用unsafe包的地方，因此把unsafe的用法及原理记录下来。

很多内容参考 深度揭秘Go语言之unsafe

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func setup() {
	fmt.Println("Before all tests")
}

func teardown() {
	fmt.Println("After all tests")
}

func Test1(t *testing.T) {
	fmt.Println("I'm test1")

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Spanner Distributed Transaction

Spanner 是 Google 发布的一个大型的分布式数据库，这里主要记录Mit6.824 Lecture中的一些关于分布式事务的要点

首先弄清楚一个数据库架构