The analysis of central issue: Booking tickets on net difficult IT is understood
Close to the Spring Festival, booking tickets on the office scene afford a magnificent spectacle, five six best colleague, buy the ticket in turn with two ID cards, is busy with not entering websites in half a day, enter so that websites fall out once breaking webpages, then log in inwards and cost 2 workdays on average to book an above ticket. Why dark reddish purple? We see and book tickets difficult IT understand!
Manager’s huge mirror seems on the discipline red day of generation of network technolohy company of old brand of Zhongguancun, there is 3,100 million passenger flow volume in all in the spring transportation this year, among them the transportation of the railway accounts for 1/10, that is to say 300 million passengers should take the railway, among them it is about 5% through the number of people that books tickets of the network, only 15 million, book tickets nervous before the Spring Festival among them, so half among them is that 8 million people booked tickets through the network. And the network books tickets the system just draws up 1 million tickets every day. The ones that cause these 8 million people not to stop in result are broken in the page, in that 1 million people get the ticket and walk from, 7 million people left will also have broken all the time. Railway book tickets network want, want, solve, visit problem totally, need, can deal with sharp point, worth 8 million some server group to hit quantity, that is to need to build 1600 servers. This quantity is not too big for a lot of IPDC data centres, Tengxun, Sina, wash treasure to be large much than this piece, if the intersection of railway and department come, plan, book tickets network can cause according to the the intersection of quantity and grade except spring transportation, other useless wasteful use of resources of most of the time, so should solve the log-in problem, also consider the question of the cost.
Then, will not buy 1600 servers on the issue that can’t solve? Certainly it is not like this.
First of all, bandwidth of booking tickets network of the railway is not enough, then a gleam of ways of line, let the thousands upon thousands of horses and soldiers take a walk, go over certainly, knock person in the front off lose line, until people bump against shed line later on oneself just, then climb and stand up to crowd inwards.
Solution: Widen the bandwidth, the railway system buys the backbone bandwidth of 200G, upgrades the server, let people log in freely, OK? We know one closing the door now rob website’s cool news of ticket, there are more than 50 servers, the network estimates that there are 15 servers at most to book tickets in the Chinese railway now, it is estimated that there are two servers too it is log-in servers, each server can accept 5000 are inserted, that is to say that there are 10000 people inside at the same time per second every second. 24*60*60*10000 =86,400,000, is close to 1 billion, disclose the data now to reveal, the clicking amount of booking tickets network is 1 billion times every day, it takes 2 servers to be newly kind under the ideal state
But the problem is, since booking tickets after the network opens, the world ranking of the network of booking tickets of Chinese railway, rise to, enter before the world 250 at once, chase one hundred mother direct, allow the intersection of Ali and father, depend on how enough mud it will be this server? More important problem is: It is a thing of the ordinary people, spends one fen more, waste too, cover oneselves and buy a electrolier lamp, the flower 1 million is justified too. Under the idea, let railway book tickets network buy 50 server, rent network bandwidth to pay 200G, you kill him, he does not do either!
Secondly, save money, too let, book tickets fast method a little? Have, that use the intersection of CDN and the intersection of network and speed technology such as Xi’an book tickets people, the server going to Xi’an after log-in, the persons who book tickets of Hebei, but the server going to Hebei, Beijing is the server going to Beijing, is not this very good? Do not turn out the person all over China, scale mountains and ford streams, step the seas and oceans far, crosses over 18 switching routers, come to the websites of booking tickets of the railway.
CDN speed technology be can rented, such as spring transportation on 40 day, 2 months at you can rent, include the mirror image servers of all parts in CDN, the bandwidth resources of all parts, bale together, rent CDN is all right!
Moreover, even if book tickets in these the server have some little trouble. Is there wood in the network card of Intel to have? There is wood with higher speed in websites to have, SSD hard disk have wood to have? One hundred degrees at present insert the server, generally adopt SSD hard disk to make the log-in server of the front desk, and put some key information here, such as active user’s database, etc., help a little of people so to come in. In addition, the front fire wall, the exchanger, between the routers, had better connect with the independent high-speed server network card, it had better be that Wan promise network card, or several network cards are placed in a server. There is acceleration that is websites again, this and CDN is not quite alike, but some measures of strengthening oneself.
In fact, these three things solve the problem method by oneself in case of not having the foreign aid, there are certain results. Buy more several yuans of the intersection of Intel SSD and hard disk, add several the intersection of Intel and high-efficient gigas of network card, several the intersection of Intel and Wan promise network card, buy several the intersection of Intel and the intersection of network and accelerator card, rent more some bandwidth, can relieve the question.
Network technique products and company mentioned inside, the rank was not successively divided, want to go who who does it say, network card Intel, network accelerator card Array, F5,etc., CDN technology offer Shanghai the intersection of network and night, the speed of Shenzhen must be opened up, there is Beijing too, servers are the treasure Germany, the tide, dawn and Lenovo’s order cycle are long. The relevant technological development of the network, or Peking University, Tsing-Hua University, Chinese Academy of Sciences. The network equipment is discipline red day of generation, this is a network company of old brand of Zhongguancun of home, with a high reputation, the service is good too, specialize in the straight conduct goods of networking products such as Intel,etc., needn’t worry buying the fake and forged thing.
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