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  • 2017
  • Spark Ensime SBT Notes

    Table of Contents sbt run 报错: Uncaught exception in thread SparkListenerBus 表现 原因 解决方法 简单记录一下折腾 Spark, Ensime, sbt 过程中遇到的问题。 » read more...

  • Simple SVN Server On Gentoo

    Table of Contents 安装 配置 启动服务 openrc systemd Check out files & play » read more...

  • ssh rsa not working

    Make sure the permissions on the ~/.ssh directory and its contents are proper. When I first set up my ssh key auth, I didn't have the ~/.ssh folder properly set up, and it yelled at me. » read more...

  • strange sigsegv with gdb

    is this true? » read more...

  • 2016
  • 杂记

    Table of Contents pipe 缓冲区有多大 Socket SO_ERROR vs errno errno SO_ERROR 用哪个 » read more...

  • Linux:How To Identify Server ECC Memory Modules

    How do I identify Linux server ECC memory modules from a shell prompt? You need to count the chips on the module. If memory module has 9 chips per sides, it is ECC memory (EDAC protected memory). It may or may not be registered. If the memory module has 8 chips per side, it is not ECC memory modules.You can get this information by visiting your BIOS setup menu. Another option is to use dmidecode command to dump bios memory information from a shell prompt: # dmidecode --type 16# dmidecode 2.1... » read more...

  • Gentoo Portage 迁移至 git

    转载自: http://kafiry.lofter.com/post/1d293d40_8016615 » read more...

  • LIRS 要点

    Table of Contents Recency & Inter-reference Recency Recency IRR: Inter-Reference Recency 冷页与热页 Stack & Queue Stack Queue 页替换规则 热页 驻留冷页 如果该页之前已经在栈里 如果该页之前仅在队里(之前为冷页) 非驻留冷页 如果该页之前仅在队里(之前为冷页) 页的状态 简单记录一下 LIRS 相关要点。 » read more...

  • Emacs On OSX

    OS X 下可以通过 Gentoo Prefix 或者 macport 或者 home brew 来安装 Emacs。安装完的 Emacs 使 OS X 原生的 Cocoa UI,很不错。但如果在 Finder 里面直接双机打开文件的话,每次都会新创出一个新的 Frame 来。 » read more...

  • 貌似很长时间没有在这里写什么东西了,连续两个月的封闭开发,整个人都很疲惫。 » read more...

  • Oracle的并行计算

    Table of Contents 1. 理论和概念 2. Oracle 的并行执行 2.1. SQL 语句的并行处理 记录一下 Oracle 数据库中并行计算相关的东西。 » read more...

  • Info Of Bison

    Table of Contents 1. 简介 2. Tutorial Sections 2.1. Bison 基本概念 » read more...

  • tar how to rename

    Table of Contents 1. Use -C and –strip-components (See man tar). 2. Use --transform » read more...

  • Find Out What Processes Are Using Swap Space

    Reposted from: http://www.cyberciti.biz/faq/linux-which-process-is-using-swap/ » read more...

  • Non blocking reading from a subprocess output stream in Python

    repost from: http://eyalarubas.com/python-subproc-nonblock.html » read more...

  • yasnippt:formatting snippets after expanded

    Suppose you need to maintain multiple projects with different coding styles, and if you are using same snippets from Yasnippet. Is it possible for yasnippet to format inserted snippets automatically to match different styles? » read more...

  • How to update a GitHub forked repository

    Reposted from: http://stackoverflow.com/questions/7244321/how-to-update-a-github-forked-repository » read more...

  • 你需要知道的12个Git高级命令

    Table of Contents 1. 使用rebase而非merge来拉取上游修改 2. 在执行git rebase后解决合并冲突 3. 临时性保存修改 4. 克隆一个特定的远程分支 5. 将cherry-pick远程提交合并到自己的分支中 6. 应用来自于不相关的本地仓库的补丁 7. 忽略追踪文件中的变更 8. 每隔X秒运行一次git pull 9. 将子目录分隔为新的仓库 10. 清理 11. 将项目文件打成tar包,并且排除.git目录 12. 查找修改者 众所周知,Git目前已经是分布式版本控制领域的翘楚,围绕着Git形成了完整的生态圈。学习Git,首先当然是学习Git的基本工作流。相比于SVN等传统版本控制系统来说,Git是专为分布式版本控制而生的强大工具。使用Git时常用的命令有pull、commit、push等,貌似很简单。不过,有时你会遇到合并冲突的情况,Git这时会将冲突标记出来,需要你手工来解决。有时,你会不小心将代码提交到错误的分支上,并且又推送到了远程仓库。还有些时候,你需要切换到不同的分支,但Git却不让你这么做,因为还有未保存的修改。... » read more...

  • rpm list files in packet

    Simply two tips: » read more...

  • 2015
  • Log Gdb Output To File

    Repost from: https://www.fayewilliams.com/2015/04/28/log-gdb-output-to-a-file/ » read more...

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