2008年4月18日,在Alexa安排的一次“Scaling MySQL -- Up or Out?”的小组辩论中,MySQL、Sun、Flickr、Fotolog、Wkipedia、Facebook、YouTube等国际知名网站的DBA们,对其网站MySQL数据库服务器、Web服务器、缓存服务器的数量,MySQL版本,编程语言类型,操作系统类型等问题进行了回答。

  点击在新窗口中浏览此图片



技术大类 » 数据库技术 | 评论(36) | 引用(0) | 阅读(29361)
yayu Homepage
2008-5-8 10:02
基本上都升到php5了
代码罐头 Homepage
2008-5-8 10:48
很可惜只说了数量没有说怎么构建的
SUN做的MYSQL cluster,不知道是不是用NDB来做的.
代码罐头 Homepage
2008-5-8 10:59
他们好像没说PHP版本吧.
那版本是MYSQL版本....
不过PHP 4都停止开发了
而且PHP5的OO性能有明显提升
应该是早都在用PHP5了.
只有国内可能还有很多还残留在PHP4开发吧.

各个WEB 2.0的网站架构我收集了很多
不光是MYSQL数量,还有整个应用的框架和service的框架
有兴趣的朋友可以去看看
http://www.hiadmin.com/?p=124
水草萍 Homepage
2008-5-9 13:08
赞一个
fly
2008-5-12 01:19
请教一下楼上的朋友,多台WEB服务器做负载均衡后,如何保证文件的一致性
code_tin
2008-5-15 10:35
多台服务器文件一致性的问题核心就是文件分发
这个和同步的时间需求有关
如果在一个不是要求很高的情况下
可以建立一台SVN服务器作为其他所有WEB站点程序的源
然后每次有文件更新之后,check in到SVN里面
再去每台分布的WEB服务器上去做update

如果对于环境要求比较高(任何时候都不能发生数据不同步的问题)
1.可以用SAN.优点是你不用考虑太多东西,把所有的东西都存在对你来说是本地硬盘的SAN上面就可以了.更新也只要更新一份就可以了.
缺点就是成本.以及容灾,如果SAN要做容灾,价格会更高

2.可以用NAS,优点是你可以用比较低廉的价格来达到近乎SAN的效果
缺点,效率比SAN要差很多.好的NAS价格又会比SAN还要贵.而且NAS的协议一般是NFS之类的,不是很可靠.

3.如果做LB,那么可以在更新之前把其他的都下线,先针对一台更新,然后再更新第二台,上线,再更新一台,再上线一台.
缺点,手工操作比较多,第一次更新的时候所有负载都会积压到一台上面,不过这个可以通过调整更新时间来减轻,但是缺点就是要半夜加班.呵呵.


如果是涉及用户上传内容而要保证文件一致性的话
建议是把程序和用户上传内容分开
用户上传会到另一个独立的子域名下
这样以后的架构再扩展也会方便很多
如果只是用SAN或者NAS暂时做存储后端
程序和用户数据还是驼在一起的话
很快你就会碰到扩展问题了,包括存储和性能两方面.
louis vuitton uk Email Homepage
2011-11-23 09:00
This louis vuitton uk for sale belongs to the sounding just what are termed as Louis Vuitton vintage best sellers, many other products and services for the reason that range appearing companies.You will easily notice the unfold zippers of this coach outlet store online. That is the decoration. There are some inside pockets for you as well. They are easy to match your clothes and to carry.Let us inspire your inner beauty with fine christian louboutin sale. Purse the elegance in bridal wedding. Enjoy the fashion.
coach factory outlet Email Homepage
2012-5-17 11:31
Today, following half a century, mentor leather-bases coach factory outlet continues to be the delicate craft of leather-based master is accountable for,Would you like to meet more friends, or go with the times? If yes, coach factory online is opening welcome doors to you.in the market you definitely can find various colorways that are designed in as well as the high quality that applied in. For most of you would like to come. So just come to our coach factory outlet online store to choose one.
louis vuitton sale Email Homepage
2012-5-17 11:31
Louis Vuitton belt at louis vuitton sale is one kind of fashion accessory with high cost performance among the Louis Vuitton accessories.Offering quality LV products with favorable prices, louis vuitton outlet store is at your service. Hurry up, or you can not seize the chance.in fact, louis vuitton is one of the most famous fashion design master.he opened the fist suitcase shop called after his name.
coach outlet online Email Homepage
2012-5-17 11:31
I heard of coach outlet online through the advertisement when I was shopping. And now I often brow the webpage and buy Coach bags online.It is a symbol regarding position not to mention nature.Here I would like to launch a excellent bags pertaining to business men.Which may be coach outlet store.coach outlet has always been simple,durable style features to win consumers.The products are more flexible,with easy bleaching,wear characteristics,and simply use a damp cloth.
coach outlet, Email Homepage
2012-5-17 11:32
Remember the coach outlet provide coach bags which won't be deteriorated into its overall styles by any means. It will maintain its looks, colors, and uniqueness for long time.coach outlet store online has been voted by Hour Detroit magazine readers as the Best of Detroit in their 12th annual readers'poll.Lots of women like which usually amount normally include a coach outlet online ,it provides coziness to many girls that don't even think it is a great bushel of great interest directly to them.
xujie777 Email
2012-5-18 16:46
We aim to make all our customers satisfy with our products. You will find a variety of Men's fashion louis vuitton uk, fashion Women's cheap Louis Vuitton bags in our store at affordable price.Thinking of interesting ways to cost a milestone birthday? louis vuitton online shop had one of the most distinctive distinctive celebrations.bakery along with living room operated by means of about three moment louis vuitton online Most effective Pastry Chef’s of the year Rammy Nominee Chef’s.
xujie777 Email
2012-5-18 16:47
The choices are likely to be basically countless seeing that louis vuitton outlet occurs with the help of completely new and also incredible concepts once in a while.Louis vuitton Wholesale Monogram Canvas HandbagsLouis Vuitton Collection Beach Handbags louis vuitton bags outlet Damier Canvas HandbagsLouis vuitton Mahina HandbagsLouis Vuitton Monogram Mini Lin HandbagsLouis Vuitton Monogram Multicolore HandbagsLouis vuitton Monogram Vernis HandbagsLouis Vuitton Wholesale Epi Leather HandbagsLouis Vuitton For Men HandbagsLouis Vuitton Damier Canvas WalletsLouis Vuitton Epi Leather WalletsLouis Vuitton Monogram Canvas WalletsLouis Vuitton Monogram Vernis WalleLouis Vuitton ShoesLouis Vuitton Men wallets.As the Authentic Louis Vuitton are so high-priced, so came the louis vuitton handbags outlet.
xujie777 Email
2012-5-18 16:47
coach outlet has become a popular shopping experience for consumers around the world, and a desirable distribution channel for manufacturer's and retailers.Getting your hands on coach outlet store online can be a hefty investment of hundreds of dollars.But do not despair,the Coach Outlet store could be the answer to your prayers.coach outlet online is your smart choice when you want to get the discount Coach accessory. You can find the exact Coach Bags and other accessory you want at a low price that's right for you. My dear friends, let the coach outlet online pave your way into the world of high fashion with their ultimate fashion factory.
Louis Vuitton UK Email Homepage
2012-5-19 16:09
Louis Vuitton UK are diversified in various kinds, handbags, backpacks, portable bags, purses, wallets and pouches. All kinds are popular among the whole word people.That publication was the only French periodical to mention the book, Louis Vuitton is the country's biggest advertiser in the press. 
Louis Vuitton Email Homepage
2012-5-19 16:23
During World War II, Louis Vuitton collaborated with the Nazis during the German occupation of France.I know someone has already sent you some photo's of the amazing Marc Jacobs/Louis Vuitton UK exhibition at the Musee Des Arts Decoratifs but I just had to share with you the day I had today . 
Coach  Outlet Email Homepage
2012-5-19 16:35
Coach Outlet has distribution, product development, and quality control operations in the United States, France, Italy, Japan, Hong Kong, China, and South Korea.Lewis Frankfort has been involved with Coach for more than 30 years.Metro Rail and ICF engineers are working to address this general problem.  The Coach Outlet Canada provides primarily for the Indian Railways, a number of different coaches - first and second class coaches, pantry and kitchen cars, luggage and brake vans, self propelled coaches. 
Coach  Outlet Email Homepage
2012-5-19 16:46
Cashin worked for Coach Outlet from 1962 until 1974, and revolutionized their product design. Known as an innovator, she instituted the inclusion of side pockets, coin purses, and brighter colors onto the bags.In the Coach Outlet Online shop, a collection of high quality and hottest Coach Shoulder Bags is offered to you. They are all at the best prices you will ever find. 
分页: 1/2 第一页 1 2 下页 最后页
发表评论
表情
emotemotemotemotemot
emotemotemotemotemot
emotemotemotemotemot
emotemotemotemotemot
emotemotemotemotemot
打开HTML
打开UBB
打开表情
隐藏
记住我
昵称   密码   游客无需密码
网址   电邮   [注册]