Archive for the ‘04. Google’ Category.

Google的物理构造 [转]

维基百科上有关一些Google物理构造的资料,转载过来:

Google于全球数个地方,雇用服务器中心来存放较低成本的普通电脑,运行Red Hat Linux操作系统来回应搜索要求和索引网页。这个于服务器中心建立的“服务器园地”以Shared nothing architecture (分布式数据库结构) 建造。索引是由程序Googlebot执行,它会定期地请求访问已知的索引建立新页面。页面更新愈快,Googlebot访问亦会愈多。再通过在这些已索引网页上的连结来发现新页面,并加入到数据库。索引数据库和网页缓存大小是以兆兆字节(terabyte)来衡量的。Google发展了一套档案系统名为Google 档案系统 ,储存这些资料。

Google使用的这些机器的精确大小和位于何处至今未知;Google官方刻意含糊其词。在John HennessyDavid A. Patterson所著的《计算机建筑:走进大数》中,推测Google的服务器场群集计算机群形成的“搜寻场”在2000年大约应该有6000个处理器,12000个普通IDE硬盘(即每个机器2个硬盘1个处理器),他们位于四个地方:二个在 硅谷和二个在 维吉尼亚。每个都以OC 48的线路(2488 Mbit/s,参见带宽)连接着因特网并且有一个OC 12(622 Mbit/s)线路连接着其他3个Google分站点。这些连接使用思科12000网关,用二个Foundry Networks BigIron 8000以太网交换器分流成4 x 1 Gbit/s的线路连接到64个服务器夹,里面前后各是40台电脑和1台惠普以太网交换机,所以一个架子共有80个机器和2个惠普交换机。

Google在2004年4月发布的IPO S-1表单后,大财政公司的英特网开发单位副总裁Tristan Louis估计了现在的服务器场包含下列各项[1]

  • 719个服务器架
  • 63,272台机器
  • 126,544个处理器
  • 253,088 GHz的处理能力
  • 126,544 GB内存
  • 5,062 TB的硬盘空间

依照这一估计,Google服务器场组成了全球最强大的超级计算机,每秒运行速度至少三倍于地球模拟器

延伸阅读:
1、How many Google machines
2、[pdf] Google Linux Cluster的系统结构分析

明天的Google会推出什么?

04年4月1日愚人节Google推出了1G容量的Gmail,去年Gmail早到2G,并且不断在增大(目前我的为2709M),不知道今年会发生什么?

Google历史上的4月1日玩笑 – Blog on 27th Floor

Googlepages有流量限制

我的朋友晚上时想对Googlepages进行编辑,上传一照片时,竟然不能正常上传。HOME PAGES 的图片也不能正常显示,直接在管理界面下点击图片时,出现如下ERR:

Error
   
      The bandwidth limit for this user has been exceeded.

Google语言工具翻译“带宽的用户已经超过这个上限. ”,看来Googlepages是有流量限制的。现在不知道这个流量是多少和是今天的流量还是这个月的流量到了,只能等明天再试试了: )

赶快把前天上传的几首MP3撤下来,估计是这个原因。

Google改变搜索结果页

前阵子就有人说过,今天下午搜索 “freebsd openoffice中文版” 时发现搜索的结果页布局真的有变化了。

2006-3-27更新:今天早上发现又恢复了,看来Google还在测试。下午在Solidot.org上看到可以通过更改来实现。

Google服务清单 [2006-1-3]

原文我不能直接访问,所以直接转帖过来(英文不行,不能翻译,抱歉)。自己算了一下,我使用的有8项服务:GMail (or Google Mail) 、Google AdSenseGoogle AnalyticsGoogle EarthGoogle Image Search  、Google TalkGoogle Language Tools (像我英盲的人挺有用)、Google Web Search 。

[原文]————————————>>

The Ultimate Guide to Google Services

Submitted on November 17th, 2005 by Jay Koby
Filed under Services and Software and Tips, Tricks & Hacks and Audio and Resources and Graphics and Browsers and Video and Productivity and Email and Books and Shopping and Storage
Post to blinklist  |  del.icio.us |  furl |  shadows |  simpy |  spurl |  yahoo

Anyone who has ever used the internet probably knows about Google’s web search, but did you know that Google does a lot more? We’ve discussed many Google services on TipMonkies before, but there are some which some of you may not be aware of. Read the full article to get the giant list of Google services and what each does. We’ll try to keep this list up-to-date as Google begins rolling out more services (because you know they will).

Here’s the big list of Google’s services:

  • Add to Google lets publishers create a custom “Add to Google” button for their RSS feeds. When a user clicks the button, they can choose to either add the feed to Google Reader, or the Google Homepage service.
  • Blogger is Google’s blog-hosting and creation service which seems to be very popular on the web because of the price (free) and ease of use.
  • Froogle is Google’s product search engine that you can use to find the cheapest price for a product.
  • GMail (or Google Mail) is Google’s popular email service, that gives you over 2 gigabytes of storage.
  • Google AdSense is Google’s contextual advertising service, popular among many websites. Google also released Onsite Advertiser Sign-Up on November 21, 2005 which lets advertisers buy ads on a site directly from the Google Ads on that page.
  • Google AdWords is the other side of AdSense. While AdSense lets publishers put ads on their site, someone has to pay for those ads, and AdWords connects companies with publishers so you can make a little bit of money.
  • Google Alerts are e-mail updates to particular searches you do on Google. Pretty useful for monitoring websites or news.
  • Google Analytics crawls your website and keeps track of your visitors through a small piece of Javascript. Great tool for webmasters trying to improve their stats and AdSense revenue.

  • Google Answers lets you hire someone to research a topic or answer a question for you.
  • Google Base looks like its going to be Google’s massive content library, with all sorts of content, uploadable by anyone. Oddly enough, it sounds like EPIC and Google Grid mentioned in this video. Many people are comparing this service to Craigslist.
  • Google Blog Search is very much like the web search service but letting search only through various blogs around the web.
  • Google Book Search allows you to search though books that Google has scanned into their database.
  • Google Catalogs is a search engine for mail-order catalogs.
  • Google Click-to-Call lets users call advertisers directly from Google search results, for free, at Google’s expense.
  • Google Code is Google’s effort to promote and contribute to Open Source software.
  • Google Compute exists as a part of the Google Toolbar and uses your computer’s idle time (when you’re not using it) to compute data from distributed computing projects like Folding@Home.
  • Google Deskbar is essentially an embedded IE window in your Window Taskbar that you can search Google from.
  • Google Desktop is similar to apps like Konfabulator or Dashboard but not as attractive. It offers various widgets and a sidebar which let you do things like searches, aggregate feeds, write notes, check weather, and more.
  • Google Directory which is similiar to Yahoo’s and dmoz’s services, letting you search by category.
  • Google Earth is a desktop application which is basically Google Local on steroids.
  • Google Groups allows you to create a mailing list, read Usenet posts, and generally collaborate with others who share a similar interest.
  • Google Homepage is a webpage which lets you add various widgets like weather, news, horoscopes and more, much like Netvibes.
  • Google Image Search is Google’s slightly-lesser-known service to search for images.
  • Google Labs highlights all the projects Google is working on for future release.
  • Google Local combines data from Google Maps with information on local businesses and venues.
  • Google Maps is a mapping service which also provides driving directions to and from different locations. The service is only available in a few countries (mainly the U.S.) but support for other countries is expected in the future. Google Maps has become quite popular lately thanks to a readily available API which lets people create their own maps.
  • Google Mobile is similiar to Google SMS, but using WAP instead.
  • Google Movie Showtimes lets you type in a zip code or address, and it will find movie theaters and showtimes near that area.
  • Google News is a news portal, aggregated by Google’s computers. Everything is done by machines, so no human interaction.
  • Google Reader is a new product which acts as a web-based RSS reader.
  • Google Ridefinder lets you easily find taxis in some of the major cities around the United States.
  • Google Scholar searches things such as theses, papers, and other research and technical information.
  • Google Search History is technically part of the Google Homepage service, but does have its own page so it warrants a mention. Basically, if you sign in with a Google account, Google will keep track of all your searches done via its web search engine.
  • Google Send to Phone is a little Firefox extension which lets you send text messages to mobile phones via SMS.
  • Google Sitemap helps create particular searches for a web address which can be very useful for webmasters looking to index their own site, or see who is linking to it.
  • Google SMS allows you to access many Google services through your mobile phone through text messaging (message GOOGL to learn more).
  • Google Store isn’t really a service, but rather a place to buy some cool Google merchandise.
  • Google Suggest is just an extension to the normal Google web search engine, but with autocomplete functionality to your searches making it a little easier to find what you need. There is also

    a Firefox extension available.

  • Google Talk is Google’s IM and VoIP program running on the Jabber network. You need a Gmail account to use this.
  • Google Toolbar is the swiss army knife of toolbars, if ever there was one letting your use the various Google web services from your toolbar, as well as offering other interesting information like a site’s PageRank and more.
  • Google Language Tools lets you translate a phrase or entire website, as well as giving you access to web search in different languages, or the ability to search for a particular something in just one language.
  • Google Video and Google Video Upload offer an archive of freely available video clips.
  • Google Web Accelerator supposedly helps load web pages faster, but there have been security and privacy issues raised about this application.
  • Google Web Search is the familiar web search. It also allows you to access certain functions like a calculator, a stock tracker, word definitions, travel information, weather, and more by simply searching for that information (for example, define onomatopoeia or weather 90210). These are not standalone services but a part of web search, which is why I’ve added them here and not into their own section. Additionally, there is the Advanced Search feature for…well…advanced searches which could be more precise than normal searches.
  • Hello is a small IM client which is used in conjunction with Picasa to share pictures with family and friends.
  • Orkut is a networking site similar to Frienster or MySpace, except it is invite only, so if you want to join it, you’ll have to know a guy, who knows a guy.
  • Picasa is a fantastic digital photo organizer application for your desktop.

Now that you know about many of Google’s services, get out there and start Googling!

UPDATE from Martin: added AdSense, Analytics, and SiteMaps to the list.
UPDATE 2 from Martin: added Alerts, Compute, RideFinder, Send to Phone, Suggest, and Hello.
UPDATE 3 from Martin: renamed Google Print to Google Book Search, added Google Movie Showtimes.
UPDATE 4 from Martin: added AdWords and Orkut.
UPDATE 5 from Martin: added Search History, Language Tools, and a mention of Advanced Search in the Web Search item.

gmail三个新功能

看到gmail又新增两个新功能,立即试用了一下。前段时间是提供了rss订阅服务。但目前这些新功能都只有在英文界面下才有,中文界面的应该也马上就能有。

第一个为联系人组群功能,这功能对一些常要群发的朋友应该会有在用处。

第二个功能为自动回复功能,对像我这样寒暑假不上网的朋友应该会有很大用处。

第三个功能为手机版gmail。

可以将你的手机与gmail相连,看到有朋友用手机试过。但没成功,自己也没试过,手机坏了:(,登陆上邮箱后访问http://m.gmail.com就能下图效果。相信发到我手机上的效果和这个应该差不多。

      

就像webleon说的那样,虽然微软雅虎的新邮件系统马上上线了,但我想到那时我也不会换的,从界面到功能都是我喜欢的,而且还在不停的增加一些新的辅助功能,还在不断的进步。gmail,能一直访问我就一直用它。


把Gmail变成FTP后我的gmail竟然不能登陆了

看到webleon的gSpace:把Gmail变成FTP ,下载安装并使用了,上传了一个文件(上传速度很快),当上传完成后firefox就没响应了,重新打开firefox登陆gmail,竟然不能登陆,显示为:

查到一篇文章——警惕!freepops能够毁掉你的邮箱,里面有这样一段话:

我们的系统检测到您的帐户使用出现异常情况,为了保护GMAIL使用者,防止意外攻击,该帐号将要被停止使用24小时。
如果你使用的是第三方软件来管理登录你的GMAIL帐户的话,请放弃使用该软件或者根据<a href="/gmail/help/terms_of_use.html">Gmail Terms of Use</a>中的帮助信息对其进行设置。如果你认为你一直在正常使用你的GMAIL帐号而没有使用任何第三方软件管理的话,或者没有任何行为违反了帮助信息中规定的内容的话请和[email protected]这个邮箱联系。

gmail对有些第三方软件好像有限制,估计我的gmail也被停用24小时了。这下完了,还是赶紧给[email protected]发信吧:(

不知道其它朋友用的如何?

gmail新功能-带着朋友走四方

早上看到烧海的blog—gmail有了新功能。但他操作gmail时一直出现重试对话框。刚开始使用gmail时出现过这种对话框,但现在已经看不到了。

不过gmail这个新功能对我只用webmail接邮件的人用处不大。


这两天google及其它产品时常上不去

我是学校局域网,这两天google不能上的时间段明显增多了,google其它的如gmail也都不能登陆,不知道大家情况如何?有可能是我这边局域网内有人 "非法访问“ 而遭到了暂时的封睹。

浏览器显示:

    连接被重置被重置。

*   此站点暂时不可用或者太忙。请稍后重试。

*   如果您无法载入任何页面,请检查您计算机的网络连接。

*   如果您的计算机受到防火墙或代理服务器的保护,请确认 Firefox  被授权访问网页。

我的一些重要备份也都在gmail中,哪天gmail真的不能登陆了,不知道那天我的心情会是什么样的?

我忽略的google在线翻译工具

英文很菜的我一直在找一款网站在线翻译服务,但一直忽略了Google提供的在线翻译工具,今天试了下,很不错。

地址:http://www.google.com/language_tools?hl=zh-CN  (首页->语言工具)(大图