<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/e111r222</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; e111r222]]></copyright><item><title><![CDATA[Gentoo集群架设（3）-- 配置buildhost]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/24705647</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/24705647</guid><author>e111r222</author><pubDate>Tue, 29 Apr 2014 12:49:23 +0800</pubDate><description><![CDATA[前文已架设完毕gentoo的分布式编译]]></description><category></category></item><item><title><![CDATA[Gentoo集群架设（1）-- 安装系统]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/24601103</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/24601103</guid><author>e111r222</author><pubDate>Sun, 27 Apr 2014 21:11:26 +0800</pubDate><description><![CDATA[# gentoo install


passwd
/etc/init.d/sshd start
fdisk /dev/sda
  300M
  4G
mkfs.ext4 /dev/sda1
mkfs.ext4 /dev/sda3
mkswap /dev/sda2
swapon /dev/sda2


scp portage-*.tar.bz2 root@192.168]]></description><category></category></item><item><title><![CDATA[Gentoo集群架设（2）--分布式编译emerge]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/24597587</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/24597587</guid><author>e111r222</author><pubDate>Sun, 27 Apr 2014 19:33:07 +0800</pubDate><description><![CDATA[先把2写了吧，这部分主要是软件分布式编译集]]></description><category></category></item><item><title><![CDATA[Ubuntu14.04 ubuntu-gnome-desktop]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/24038901</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/24038901</guid><author>e111r222</author><pubDate>Fri, 18 Apr 2014 18:04:15 +0800</pubDate><description><![CDATA[$ sudo apt-get install ubuntu-gnome-desktop
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that]]></description><category></category></item><item><title><![CDATA[Cassandra2 个人认为仍不适合做大数据存储]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/21115855</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/21115855</guid><author>e111r222</author><pubDate>Wed, 12 Mar 2014 21:10:19 +0800</pubDate><description><![CDATA[今天数据库很happy的出现了性能瓶颈
起先是插入数据过慢，相当慢，我已经无法理解了，达到500w就是一个坎么
然后就是简单的select查找命令就报
Request did not complete within rpc_timeout.

我都已经伤心不能自已了
连错误跟踪都已经木有心情去研究了
看了某浪的说他们用了cassandra做数据库，我就无语了，这还2011年的，不知道]]></description><category></category></item><item><title><![CDATA[我的大数据存储探索]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/21103465</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/21103465</guid><author>e111r222</author><pubDate>Wed, 12 Mar 2014 17:45:54 +0800</pubDate><description><![CDATA[由于定位处于大数据（Big Data），我觉得更确切的说是超数据（Super Data），几乎从数据获取到运维，建模分析都得一个人来
上学期折腾完数据的获取部分，总体感觉大公司就是牛逼，这与之前的运维经验了解相一致，没有让我对国内大公司的运维产生负面感觉
这学期伊始就必须解决大数据存储问题了，之前偷懒使用文件系统进行存储，带来的极大I/O开销以及数据冗余性使得我研究了一段时间的BFS
可惜对]]></description><category></category></item><item><title><![CDATA[Cassandra 数据类型]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/20914021</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/20914021</guid><author>e111r222</author><pubDate>Mon, 10 Mar 2014 13:22:40 +0800</pubDate><description><![CDATA[Table 1. CQL Data Types


CQL Type
Constants
Description




ascii
strings
US-ASCII character string


bigint
integers
64-bit signed long


blob
blobs
Arbitrary bytes (no validat]]></description><category></category></item><item><title><![CDATA[Python 对Cassandra数据库进行操作]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/20802135</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/20802135</guid><author>e111r222</author><pubDate>Sat, 08 Mar 2014 23:08:25 +0800</pubDate><description><![CDATA[首先需要安装的是

pip install cassandra-driver 
pip install lz4


pip install python-snappy

Arch 需要pacman -S snappy]]></description><category></category></item><item><title><![CDATA[Cassandra 数据库操作命令]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/20800635</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/20800635</guid><author>e111r222</author><pubDate>Sat, 08 Mar 2014 22:23:09 +0800</pubDate><description><![CDATA[Cassandra使用cqlsh进行数据库操作
创建数据库‘库名’，总共有1个备份，即无冗余备份
cqlsh> CREATE SCHEMA 库名 WITH replication = {'class': 'SimpleStrategy','replication_factor': 1};
cqlsh> USE 库名;

cqlsh:库名>   CREATE TABLE 表名 ( )]]></description><category></category></item><item><title><![CDATA[Cassandra Linux 架设]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/20798913</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/20798913</guid><author>e111r222</author><pubDate>Sat, 08 Mar 2014 21:46:07 +0800</pubDate><description><![CDATA[由于遇到超大数据量的存储压力，在查看各种数据库推荐以及群内大神的推荐，我和朋友选择Cassandra作为分布式数据库
优缺点请看官自行去各大测评网站看吧
这里主要讲如何架设服务环境。（注：本测试是在Arch环境下搭建）
Cassandra架设甚是简单，但是有些地方还得注意
首先得在机器上安装好java，需要jdk在1.7以上
最值得注意的是/etc/hostname必须绝对十分要！！！！]]></description><category></category></item><item><title><![CDATA[python 字符string类型变unicode]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/20371441</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/20371441</guid><author>e111r222</author><pubDate>Mon, 03 Mar 2014 14:13:46 +0800</pubDate><description><![CDATA[遇到一个蛋疼的问题
一个字符串内容是\u7a7a什么的，写明白点就是

a = s'\u7a7a'
需要得到

b = u'\u7a7a'


然后就开始蛋疼找办法，解决如下


b = a.decode('unicode-escape')]]></description><category></category></item><item><title><![CDATA[ArchLinux Install ArchLinuxARM odroidx]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/18192751</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/18192751</guid><author>e111r222</author><pubDate>Sun, 12 Jan 2014 21:59:56 +0800</pubDate><description><![CDATA[http://rubiojr.rbel.co/hack/2013/01/10/installing-arch-linux-in-your-android-phone-chroot/

NEED kpartx USE this LINK:http://christophe.varoqui.free.fr/


now have PROBLEM , CANNOT CHROOT, DON'T ]]></description><category></category></item><item><title><![CDATA[Intel Hadoop 安装手记]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/17022707</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/17022707</guid><author>e111r222</author><pubDate>Fri, 29 Nov 2013 12:25:05 +0800</pubDate><description><![CDATA[机器的系统是CentOS 6.3


通过Intel官方网站下载Intel Hadoop


然后根据此文下载IDH
http://hadoop.intel.com/pdfs/IDH-InstallGuide_R2-4-1_EN.pdf
在此下载IDH
http://repo1.intelhadoop.com:3424/setup/

或 http://repo2.intel]]></description><category></category></item><item><title><![CDATA[gentoo gcc 手工升级]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/16990149</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/16990149</guid><author>e111r222</author><pubDate>Wed, 27 Nov 2013 18:43:00 +0800</pubDate><description><![CDATA[gcc原版本是3.6.5，由于要升级成4.7.3 报错。。。故采取另类方法升级


下载新版stage，解压后把/usr/bin/gcc /usr/lib/gcc /usr/libexec/gcc /usr/i686-pc-linux-gnu/gcc-bin/4.7.3/gcc 复制到相应目录，并做好备份

gcc-config i686-pc-linux-gnu-新版本号]]></description><category></category></item><item><title><![CDATA[iCal我的例子]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/11554995</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/11554995</guid><author>e111r222</author><pubDate>Wed, 11 Sep 2013 10:16:39 +0800</pubDate><description><![CDATA[BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20130917T080000
DTEND;TZID=Asia/Shanghai:20130917T114000
RRULE:FREQ=DAILY;COUNT=9;INTERVAL=14
DTSTAMP:20130911T014012Z
UID:k6srvauih2689sgfc9pbi7fkc0@googl]]></description><category></category></item><item><title><![CDATA[iCal书写规范]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/11552735</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/11552735</guid><author>e111r222</author><pubDate>Wed, 11 Sep 2013 09:02:18 +0800</pubDate><description><![CDATA[转自：http://note.tc.edu.tw/651.html

























最近研究 iCalendar，發現這是一個RFC2445，為了把ics塞到資料庫，得花點時間研究一下RFC。
他的內容長這樣：
BEGIN:VEVENT
DTSTART;VALUE=DATE:20100329
DTEND;]]></description><category></category></item><item><title><![CDATA[MATLAB timer函数详解]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/9086193</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/9086193</guid><author>e111r222</author><pubDate>Thu, 13 Jun 2013 14:58:43 +0800</pubDate><description><![CDATA[t = timer;
    % timer详细请参阅http://www.mathworks.cn/cn/help/matlab/ref/timer.html
    % t.AveragePeriod  = NaN;     % 自计时器开始，平均多久运行一次TimerFcn，默认是NaN双精度实型，不可修改
    % t.BusyMode       = 'drop';  % 在执行]]></description><category></category></item><item><title><![CDATA[kernel 3.9.0 bug :ipv6]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/9044191</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/9044191</guid><author>e111r222</author><pubDate>Fri, 07 Jun 2013 08:33:48 +0800</pubDate><description><![CDATA[net/built-in.o: In function `ieee80211_unregister_hw':
(.text+0x10f0e1): undefined reference to `unregister_inet6addr_notifier'
net/built-in.o: In function `ieee80211_register_hw':
(.text+0x10f610)]]></description><category></category></item><item><title><![CDATA[linux 控制台 CJK 字符顯示補丁]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/9028809</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/9028809</guid><author>e111r222</author><pubDate>Wed, 05 Jun 2013 10:53:59 +0800</pubDate><description><![CDATA[http://shadow.ma/blog/2013/01/22/cjktty-kernel-patch-for-linux-console-with-cjk-characters-support/
https://code.google.com/p/ttyim/wiki/install]]></description><category></category></item><item><title><![CDATA[gentoo xfce slim login problem solved]]></title><link>https://blog.youkuaiyun.com/e111r222/article/details/8979628</link><guid>https://blog.youkuaiyun.com/e111r222/article/details/8979628</guid><author>e111r222</author><pubDate>Mon, 27 May 2013 14:01:08 +0800</pubDate><description><![CDATA[http://anderse.wordpress.com/2011/09/11/xfce-4-slim-and-consolekit/

XDM Setup:
Remove any ~/.xinitrc files.


Use (ex) /etc/env.d/90session and insert this to set Xfce as default WM:
XSESSION=]]></description><category></category></item></channel></rss>