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Think in Performance – 分享、学习、提高. On October 4, 2013. 一、原理图1 负载均衡原理图看图说话，基于上图原理的负载均衡有硬件设备也有软件设备。二、四层交换图2 四层交换拓扑图三、七层交换图3 七层交换拓扑图. This is a sticky post! On July 29, 2013. River 代表es的一个数据源，也是其它存储方式如数据库同步数据到es的一个方法。 Transport 代表es内部节点或集群与客户端的交互方式，默认内部是使用tcp协议进行交互，同时它支持http协议 json格式、thrift、servlet、memcached、zeroMQ等的传输协议通过插件方式集成。 This is a sticky post! On April 23, 2013. Read more ». This is a sticky post! On April 23, 2013. 使用SysBench可以对MySQL性能进行测试.首先需要创建测试数据(含100W行数据的数据表) [root@QLB test]# sys...

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Think in Performance – 分享、学习、提高. | 只要有两样东西在心中，我们就能成就自己的人生。第一样叫做理想，第二样叫良心。 | blog.shaogx.com Reviews

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Think in Performance – 分享、学习、提高. On October 4, 2013. 一、原理图1 负载均衡原理图看图说话，基于上图原理的负载均衡有硬件设备也有软件设备。二、四层交换图2 四层交换拓扑图三、七层交换图3 七层交换拓扑图. This is a sticky post! On July 29, 2013. River 代表es的一个数据源，也是其它存储方式如数据库同步数据到es的一个方法。 Transport 代表es内部节点或集群与客户端的交互方式，默认内部是使用tcp协议进行交互，同时它支持http协议 json格式、thrift、servlet、memcached、zeroMQ等的传输协议通过插件方式集成。 This is a sticky post! On April 23, 2013. Read more ». This is a sticky post! On April 23, 2013. 使用SysBench可以对MySQL性能进行测试.首先需要创建测试数据(含100W行数据的数据表) [root@QLB test]# sys...

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7 现在常见的是四层或七层交换，所以负载均衡设备也就被称为是四层到七层交换机

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Think in Performance – 分享、学习、提高. On October 4, 2013. 一、原理图1 负载均衡原理图看图说话，基于上图原理的负载均衡有硬件设备也有软件设备。二、四层交换图2 四层交换拓扑图三、七层交换图3 七层交换拓扑图. This is a sticky post! On July 29, 2013. River 代表es的一个数据源，也是其它存储方式如数据库同步数据到es的一个方法。 Transport 代表es内部节点或集群与客户端的交互方式，默认内部是使用tcp协议进行交互，同时它支持http协议 json格式、thrift、servlet、memcached、zeroMQ等的传输协议通过插件方式集成。 This is a sticky post! On April 23, 2013. Read more ». This is a sticky post! On April 23, 2013. 使用SysBench可以对MySQL性能进行测试.首先需要创建测试数据(含100W行数据的数据表) [root@QLB test]# sys...

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Think in Performance – 分享、学习、提高. On January 12, 2013. MMSEG是中文分词中一个常见的、基于词典的分词算法作者主页 http:/ chtsai.org/index tw.html. 关于算法的原文，可以参见 http:/ technology.chtsai.org/mmseg/. 非基于词典的算法，一般主要是运用概率统计、机器学习等方面的方法，目前常见的是CRF Conditional random field, http:/ en.wikipedia.org/wiki/Conditional random field. 此类方法可以让计算机根据现成的资料，学习如何分词。具体的实现可参考 http:/ nlp.stanford.edu/software/segmenter.shtml. 根据作者在原文中的阐述，对MMSEG的解释分为匹配算法 Matching algorithm 和消除歧义的规则 Ambiguity resolution rules 这两部分。 2 Largest average word length.

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MySQL字段数据类型/长度及表类型扫盲 | Think in Performance – 分享、学习、提高.

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Think in Performance – 分享、学习、提高. On December 22, 2012. FLOAT(X) 4 如果 X = 24 或 8 如果 25 = X = 53. DOUBLE PRECISION 8 个字节. DECIMAL(M,D) M字节(D 2 , 如果M D). NUMERIC(M,D) M字节(D 2 , 如果M D). 类型大小范围有符号范围无符号用途. 浮点数值 DOUBLE 8 字节 (1.797 693 134 862 315 7 E 308，2.225 073 858 507 201 4 E-308)，0，(2.225 073 858 507 201 4 E-308，1.797 693 134 862 315 7 E 308) 0，(2.225 073 858 507 201 4 E-308，1.797 693 134 862 315 7 E 308) 双精度. 浮点数值 DECIMAL 对DECIMAL(M,D) ，如果M D，为M 2否则为D 2 依赖于M和D的值依赖于M和D的值小数值. 字节) 范围格式用途. 如果描述为字符串，...

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访问日志分析 | Think in Performance – 分享、学习、提高.

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Think in Performance – 分享、学习、提高. On January 6, 2013. Netstat -ntu awk ‘{print $5}’ sort uniq -c sort -nr. Cat access log cut -d ‘ ‘ -f 1 sort uniq -c sort -nr awk ‘{print $0 }’ head -n 10 less. Cat access log cut -d ‘ ‘ -f 1 sort uniq -c awk ‘{if ($1 100) print $0}’ sort -nr less. Cat access log tail -10000 awk ‘{print $7}’ sort uniq -c sort -nr less. Cat access log cut -d ‘ ‘ -f 7 sort uniq -c awk ‘{if ($1 100) print $0}’ less. Cat access log awk ‘{print $7}’ uniq -c sort -n -r head -20.

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MySQL锁 | Think in Performance – 分享、学习、提高.

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Think in Performance – 分享、学习、提高. On January 6, 2013. 在数据库中，除传统的计算资源如CPU、RAM、I/O等的争用以外，数据也是一种供许多用户共享的资源。比如，MyISAM和MEMORY存储引擎采用的是表级锁 table-level locking BDB存储引擎采用的是页面锁 page-level locking ，但也支持表级锁 InnoDB存储引擎既支持行级锁 row-level locking ，也支持表级锁，但默认情况下是采用行级锁。 L 表级锁开销小，加锁快不会出现死锁锁定粒度大，发生锁冲突的概率最高,并发度最低。 L 行级锁开销大，加锁慢会出现死锁锁定粒度最小，发生锁冲突的概率最低,并发度也最高。 L 页面锁开销和加锁时间界于表锁和行锁之间会出现死锁锁定粒度界于表锁和行锁之间，并发度一般。随着应用对事务完整性和并发性要求的不断提高，MySQL才开始开发基于事务的存储引擎，后来慢慢出现了支持页锁的BDB存储引擎和支持行锁的InnoDB存储引擎实际 InnoDB是单独的一个公司，现在已经被Oracle公司收购。

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position 0: ordinal not in range(128)” 解决方法 | Think in Performance – 分享、学习、提高.

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Think in Performance – 分享、学习、提高. Position 0: ordinal not in range(128)” 解决方法. On April 18, 2013. UnicodeDecodeError: ‘ascii’ codec can’t decode byte 0xe9 in position 0: ordinal not in range(128). Default encoding = ‘utf-8′. Leave a Comment Cancel reply. You must be logged in. To post a comment.

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. 大话NoSQL ——什么是NoSQL. 整理的博文内容大部分都来自于网络，也有自己一点点见解吧，废话少说，下面进入我们今天的话题概念 NoSQL NoSQL=Not Only SQL ，意即不仅仅是SQL。 NoSQL to InnoDB with Memcached的出现，可以看出NoSQL对关系数据库的确产生了巨大的影响，个人觉得这是一个非常大的进步，可以让开发人员更加方便的使用NoSQL和关系数据库。 NoSQL一般被认为性能高于关系数据库，那么直接在InnoDB之上提供NoSQL功能并和MySQL共存是否是一个更好的选择呢 MySQL with HandlerSocket. 三纯 NoSQL 架构.

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. Google发布新版Google Search for Android. Google 今天发布了新版的 Google Search for Android。据 Droid Life 报道，Google 已经悄悄开始允许所有开发者在 Google Play 商店回复用户评论。此前在 2012 年 6 月，Google 将该权限开放给了 Google Play 上的头等开发者 top developer 们。 Http:/ 74.125.205.147/. 全文. 摘要 Google Maps API Web Services，是一个为您的地图应用程序提供地理数据的 Google 服务的 HTTP 接口集合。

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. 原文链接 http:/ picsays.com/2013/07/26/copy-data/. 现在，如果不经常把大数据挂在口头，就如同5年前不知道云计算意味着你已经落伍了。如果说云计算更多的与信息产业的发展未来有关，那么大数据对未来的影响面则广泛得多。大数据需要高效的存储平台—“4V”金字塔彰显大数据价值. 大数据从概念走向价值，基于大数据的推荐与预测逐步流行，数据科学将兴起，安全与隐私成为重要问题，大数据产业成为战略性产业这是中国计算机学会大数据专家委员会对大数据 2014年十大趋势预测中的内容。在美国，加州大学伯克利分校从2011年开设数据科学导论伊利诺伊大学香槟分校...

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. 1，主从复制的原理如下图第一步在每个更新数据的事物完成之前，主服务器都会把数据更改记录到二进制日志中。准备的知识 linux系统的简单操作，会配置apache或nginx服务器，安装mysql数据库，php知识了解一点就可以所需硬件一个带有linux系统的计算机，配置不需很高，自己平时用的电脑都可以。我以我的搭建为例，我的情况是这样的我在我们学校里有一台linux服务器这个就需要你自己办了，我自己电脑是windows系统，用的是Secure Shell Client 简称SSH 远程控制软件，服务器使用nginx配置的。 Try files $uri =404; fastcgi pass ...

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. 很快大脑中建立了两个对他们明显的标签VMware Workstation 用于实验个人 VMware vSphere 用于生产企业之后问了老师，老师连说不是. 全文. 上文提到VMware公司1998年与加利福尼亚成立，本篇就其成立后的一系列产品展开叙述. VMware Workstation的问世. VMware vSphere VMware vSphere5安装(使用SQL2008R2Enterprise. 一安装 Windows Server 2008 R2. 略二安装 SQL Server 2008 R2 SP1 Management Studio Express x64. Vmware虚...

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. 云计算倡议书二 ——什么是云计算为什么云计算重要. 云架构本身可以是私有云运行在一个组织的内部，或者公有云运行在Internet。国家十五 863计划计算机软硬件技术主题专家组副组长、北京航空航天大学钱德沛教授在会上介绍了自己关于云计算的看法，并分析了云计算与网格计算、Web计算等的差异，并提出云计算应该与网格计算结合、取长补短。首先，究竟什么是云计算 Cloud Computing 呢钱教授指出，云就是互联网做网络的似乎总是把网络抽象成云云计算就是利用在Internet中可用的计算系统，能够支持互联网各类应用的系统。云计算安全云计算美梦中一颗定时炸弹.

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. JAVA版本:java 6 /higher edition. 1 下载Spark. Http:/ spark.apache.org/downloads.html. 你可以自己选择需要的版本，这里我的选择是 . 全文. Spark on Yarn ”爬坑“集锦 spark1.2. 解决方案这个比较简单直接编辑$SPARK HOME/conf/spark-env.sh文件，将mysql的驱动jarexport进去，如 . 全文. Openfire Spark Spark Web安装配置(一). Openfire Spark Spark Web安装配置三. Openfire企业安装版下载地址 . 全文.

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. Android为了屏蔽进程的概念，利用不同的组件[Activity、Service]来表示进程之间的通信组件间通信的核心机制是Intent，通过Intent可以开启一个Activity或Service，不论这个Activity或Service是属于当前应用还是其它应用的本文如有bug，请指出啊大家一同进步. 2、一个 intent-filter 包括一个或多个 action. 3、一个Intent对应多种匹配结果的处理说明一个intent有多个可匹配的处理组件，系统如何处理分响应消息的组件类型 1 如果是service那么这些service都可以启动并处理消息。简单一点说就是权限设置问题我们可...

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This string was altered by TechBlog Plugins Example. This is an example to show the potential of an offcanvas layout pattern in Bootstrap. Try some responsive-range viewport sizes to see it in action. CISCO CEF(Cisco Express Forwarding,Cisco特快交换) 详解. 2 邻接表维护一个邻接节点以及他们相关的2层MAC重写或吓一跳信息数据库3 NetFlow Table:用于统计网络数据等需要指出的是，CEF的转发信息不是存储在cache里的，因此也不存在过期作废或定时刷新，只有根据路由表的变化而进行的更改，通常很稳定。它的高速表现在以下两个方面 1 在查询方式上简化了步骤，提高了速度 2 在分离了路由和转发功能。 CEF 依赖最长匹配转发算法，这意味着按降序搜索整棵树直到最长匹配，即匹配最大比特数。附加的新功能在配置集中模式CEF和分布模式CEF时，您还可以配置以...

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Think in Performance – 分享、学习、提高. | 只要有两样东西在心中，我们就能成就自己的人生。第一样叫做理想，第二样叫良心。

Think in Performance – 分享、学习、提高. On October 4, 2013. 一、原理图1 负载均衡原理图看图说话，基于上图原理的负载均衡有硬件设备也有软件设备。二、四层交换图2 四层交换拓扑图三、七层交换图3 七层交换拓扑图. This is a sticky post! On July 29, 2013. River 代表es的一个数据源，也是其它存储方式如数据库同步数据到es的一个方法。 Transport 代表es内部节点或集群与客户端的交互方式，默认内部是使用tcp协议进行交互，同时它支持http协议 json格式、thrift、servlet、memcached、zeroMQ等的传输协议通过插件方式集成。 This is a sticky post! On April 23, 2013. Read more ». This is a sticky post! On April 23, 2013. 使用SysBench可以对MySQL性能进行测试.首先需要创建测试数据(含100W行数据的数据表) [root@QLB test]# sys...

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Monday, 3 August 2015. Our team went for the exhibition in the RISE conference organized by Web Summit. It was fruitful to learn from entrepreneurs and investors in the community. During this event, we demoed our newborn product, Tutormy. Which is a mobile market place for tutors and students to meet and communicate. We visited most educational related product booths during the event. There are basically three types of products in the market. There are a few reasons in my mind:. Tuition market is pretty ...

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少‧林

張貼者： Shaolin Hsu. 那是一次有趣的壯遊，除了單純的環島之外，還加入了『走唱. 12303;的元素－在每天的旅程中，抽出大約一小時表演，地點隨意，時間亦隨意！旅程的起點，是 JOE 的一句：『怎麼樣，下禮拜去環島吧！』。這一點頭，行程和住宿就波波波波的喬定了，走唱的意念也迅速決定。趕在除夕前去練團室套了一下，然後～. 大年初五，NICOLE and THE JOEs 「Good Morning, 2011 環島走唱」出發. 65292;那裡的環境頗不錯，有個空曠的廣場，我們在那個廣場上，用著早上開工才買到的發電機，佈陣！（照片色調是有人在測試相機特效）. 65288;太魯閣國家公園入口），這是我最喜歡的地點，空氣很好，很靜，很空曠！夢寐以求的在大自然唱歌～. 65292;與有理念的主人徐杯杯和單車環島的旅人聊天分享音樂，我們留下了一張圖片和很多很多的字，也許有一天你住在倒地鈴會看到。那個民宿，有太多神奇的人在那邊留下故事！ 65292;其實根本沒有認真唱歌XD 玩了一下就去抓螃蟹了哈哈！張貼者： Shaolin Hsu. 張貼者： Shaolin Hsu. 第一屆是個震撼教育&#6...

blog.shaon.net

Overwhelmingly Geek

My personal software development workflow. When I write code for myself, I find that the simplest workflows lend the most productive outcomes. Often, I’ve seen engineers bundle up a number of code changes, tests and artefacts all into one humongous commit. I personally find that workflow difficult to manage, so my philosophy is to have lots of individual atomic changes (one per commit) and bundle those into a branch that I merge into master. Look at our Kanban board. Git checkout -b #1204. At home, one o...

blog.shap.org.uk

SHAP Blog

Skip to primary content. Skip to secondary content. Email enquiries@shap.org.uk. BLACK AND MINORITY ETHNIC (BME) COMMUNITY DEVELOPMENT SERVICE IN MENTAL HEALTH (HALTON, KNOWSLEY AND ST HELENS). November 22, 2011. The service was awarded the Surya Shaffi Award for Health at this year’s Annual Black Achievers Awards Ceremony organised by Merseyside Black History Month Group at the St George’s Hall, Liverpool on Saturday 29. Ensure that services delivered by the mental health and wellbeing service providers...

blog.shapedo.com

ShapeDo Blog

August 10, 2014. April 27, 2015. Stop “Networking”, try Making Friends Instead. It makes sense to actively build your network. But in my opinion people get networking wrong. Too many professionals (my self often included) work a room of highly relevant, successful and influential people by speaking with everyone briefly. Every conversation seems to the point, promising and exciting, but at home with a pile of business cards it all seems blurry and little comes of it. Treat professional discussions like y...