Even if the wind rises, life will not give up.

Only a week has passed since the opening of the download, and the registration number of QQ has reached the beginning of 3! Those users who can use the Internet service of ISP service providers have responded very enthusiastically to QQ, and the major BBS in China have also received rave reviews.

"It's really good software! I often use the company's computer to look at American websites, and I haven't seen such a good thing in the United States!"

"This can be regarded as a bold innovation by a domestic software manufacturer! Very good, there is great hope for domestic software!"

"I like the group feature the most! I was very touched by the feeling of familiar friends chatting together in real time, which was really more enjoyable than the chat room, where there were too many strangers. ”

"It's a pity that the internet fee is too expensive, otherwise I wouldn't want to be offline. ”

"I go online every three minutes, go offline after receiving messages, write a reply and send it online. ”

"Haha, so am I, otherwise I will be poor and crazy. ”

"Do you know the origin of this Chongguang company? The new computer I bought is equipped with the Imagination Tianteng graphics card LX100, and the Youying Overlord coprocessor chip on it is designed by them!"

"Damn! I know that chip! The newspaper has a strong evaluation! China also has its own IC design company!?"

"I didn't expect Chongguang's software to be so strong!"

"I have known for a long time that the software of this company is also very good, with the QQ super solution that comes with the imagination Tianteng graphics card, there is no card at all to put VCD!"

"Yes, I also read the introduction of "Popular Software", that graphics card is simply amazing! It can not only be used as a decompression card to play VCD, but also as a high-end 3D acceleration card to play 3D games!"

"In this way, the strength of this Chongguang company is very strong! What does it have to do with Changxiang?"

"It must have a relationship, otherwise imagine how they would use their chips. ”

"I heard from the company's development manager that this company is from the Institute of Computing Science of the Chinese Academy of Sciences, isn't it also from there?"

"I see, no wonder, it seems that they represent the highest level of software and hardware development companies in China!"

"Don't talk about QQ anymore! I'm so angry! Chongqing Telecom here doesn't provide Internet access services, so you can't use it!"

"You bastards. I don't even take me to play with the group!"

“…… A moment of silence for comrades who cannot access the Internet in the true sense of the word......"

“…… 555……”

……

With the increasing number of downloaders, Chongguang Company has just rented the QQ server from Beidu Telecom, but there is an inexplicable login freeze.

Hu Yiting keenly discovered the problem, so he held a technical meeting in time.

As the team leader, Hu Yiting asked everyone to speak first. It was also a test for the young R&D team to solve problems independently.

Peng Bin: "There is absolutely no problem with the kernel I wrote, and QQ as a peer-to-peer instant messaging software, its requirements for the server are actually very low, we only store the user's friend list on the server, and up to 50 unreceived messages. So there shouldn't be any lag!"

Jiang Yunshun: "Let's sort out the software operation process and see what the problem is." ”

Everyone nodded in agreement.

Jiang Yunshun thought about it and said: "First of all, QQ's peer-to-peer communication mode is that when user A logs in, the server will verify whether his QQ number and password match, and after verifying the pass, the server will mark him as online.

In the second step, the server will send the information that A has logged in to the online user in A's friends list according to the friend list stored by user A on the server. This information includes A's IP address and port number.

In the third step, the server stores its own friend list of user A. Send back the computer that user A is currently logged into, and tell him who is online on this list, as well as the IP addresses and port numbers of those online friends.

So the landing is complete. ”

Peng Bin: "That's right! I also went to test the server that Telecom rented to us! I saw that there were six HP servers in the telecom room, and each of them was brand new! The performance was much better than the Compaq server in our company! I heard that the government was going to build an all-English information construction website before the end of the year, which was really a waste. ”

Hu Yiting reminded him: "Let's get to the point." ”

Peng Bin gushed endlessly: "I discussed with Boss Wu at the time, and chose a one that didn't seem to have been used, good guy! Exclusive 64K bandwidth line! It's just too luxurious! A year rent plus service fee of 30,000 yuan, bandwidth rental fee of 30,000 yuan, both performance and price, are much more cost-effective than our own server network cable!"

"My test results show. If it's just a login, even if there are 3,000 login requests per second at the same time, the server can handle it effortlessly. ”

Jiang Yunshun nodded in confusion: "Then I'll analyze the flow of the chat next." ”

"If user A wants to chat with his friend user B, he will directly use the guò IP address and port number to connect to the QQ client on the other party's computer. The server has already sent him these IP addresses and port numbers when he logs in, and the server doesn't need to handle them for him. ”

"Peer-to-peer chat is a kind of peer-to-peer communication that doesn't need to be relayed through the server, so the server doesn't have to deal with the task at all, which means it's not affected in any way. ”

Peng Bin frowned: "That's what I meant! So there's no reason to freeze now! Could it be that the UPD protocol used for transmission between the client and the server is unreliable?

Jiang Yunshun frowned: "No, right? I wrote this module." The technology is very mature, and the low number of jù communication used for this kind of process is more than enough, and it is impossible to have a problem......"

Seeing that the two of them couldn't get out, Wu Shihuan interjected with a smile: "I don't have to say that you two, you forgot the biggest problem." ”

Cao Yunuan was also covering her mouth and laughing: "They have been busy setting up the website of the QQ forum for the past few days, and their brains are confused when writing code." ”

Peng Bin looked confused: "What's wrong?"

Jiang Yunshun asked very strictly, "You know?"

Huang Haishi smiled: "I won't say it, I'm going to kill them in a hurry." ”

Li Xiuming snorted: "Forget it, don't waste time, you two stupid people didn't count as a group chat." ”

Peng Bin shook as if he had been electrocuted: "Ah!

Jiang Yunshun breathed a sigh of relief, and his body softened: "Why didn't I think of it? Well, fortunately, it's not the UPD communication module I wrote that has a problem." ”

Huang Haishi said with a smile: "Group chat information is forwarded by the server, if a group of 50 people, a message must be forwarded to everyone 50 times by the server before it can be displayed in the chat history, if someone is not online, the server will store up to fifty messages, and send it to him after he goes online." ”

Cao Yunuan shook his head and said: "It's too resource-consuming, although this function is good, but it's still turned off, otherwise 50 people will send a message per second, and the service will be forwarded 2500 times, what server can stand such a toss." ”

Wu Shihuan looked at Hu Yiting: "It's better to turn off the group chat function, I didn't expect that there would be so many people using it when it was first designed, if there were fewer people, it would be fine, now there are more and more users day by day, this function will drag down our server." ”

Hu Yiting nodded: "Turn it off, use the server to send a pop-up message to each user, just say that the server is overwhelmed, and the group chat function is temporarily blocked." ”

Peng Bin said: "Why don't I upgrade QQ and block the group building function?"

Hu Yiting thought for a while: "It's okay, but as the old saying goes, if you hit a stick, you have to give a sweet date, and you upgrade the ten avatars designed by Sister Wang the day before yesterday, which can be regarded as giving everyone more personalized choices." ”

Jiang Yunshun: "Good idea! In this way, there will be fewer people complaining." ”

……

That night, Ma Huateng logged in to QQ in advance, ready to participate in the joint meeting of CFIDO webmasters that everyone agreed during this time, starting at eight o'clock every night and lasting for an hour, suddenly, a small window slowly appeared in the lower right corner of the screen, which read:

"Due to the immaturity of the QQ group chat function, a large amount of server resources are consumed, and some QQ users have login jams, Chongguang Company has decided to temporarily block the QQ group chat function, please understand. ”

In desperation, the pony blurted out, "Youmu is mistaken!, such a good feature is actually turned off...... Down with the Chongguang Company!"

He hurriedly clicked on the CFIDO webmaster group in the group category, clicked on it, and tried to type "Hello everyone." There was no response in the chat log box above, apparently because the server had stopped forwarding the service.

At this time, the avatar in the lower right corner of QQ flashed one after another, and the webmasters were asking one by one, and the content was to ask if the other party had also received a pop-up notification.

Complaints from friends and webmasters came one after another.

"Chongguang is so cheap!"

"Heavy light tricks!"

"Down with the Heavy Light Company!"

Pony was disappointed and replied boredly, "The meeting is canceled tonight, so let's notify each other." ”

At this moment, a window slowly appeared in the lower right corner of the screen:

"QQ communication software upgrade tips, QQ-V1.01 version has been launched, adding ten new charming avatars, there are handsome men and beautiful women, to provide you with more personalized choices. Please select Online Upgrade from the System menu. (To be continued.) )

PS: Thank you ggiuiuiuiuiuh, jnwen, Sea Breeze 050810, Wang Xuanxuance, Comrade Lao Yang Hello, Kashiwagi Tatsuno, Reading with the Wind, Feng Yun, Alien 09977 Reward!

Thank you all for your support!