War "plague" Today, no one will stay out. From the beginning of the end of January, a national epidemic blocking action kicked off, shut down businesses, schools, shopping centers closed down, exceptionally deserted city streets, the opposite is not out of hundreds of millions of Internet users has set off a burst of big on the Internet traffic boom. That flow from the peak number of February 10, has passed the whole month. At this figurative meaning is organizing internal video conferencing, this work since one month recovery disk. In his opinion: before the crisis, more testing technology, which is an unprecedented tough battle, but also a light moment as a high technical person specific. In this war "plague", there are some stories deserve to be recorded.
Under epidemic time online
During the Spring Festival holiday, where the figurative meaning Ali cloud cloud video team just finished the show live escort, if it is in previous years, to the Great Year, they can put down the tension, attention will return to the family. But this year is different, affected by the epidemic, 1.8 million households flocked online to see Surreal, 40 million users online cloud overseer Vulcan Mountain, 200 million people return to work at home, collective, national primary and secondary air commencement ...... massive video data coming fast and furious in the Internet the surging torrents.
Figurative meaning from the beginning has been glued to the Spring Festival Evening escort CDN resources market, seeing the data is climbing, as the CDN edge product architecture and infrastructure team leader, he received a mandate, the Internet traffic will encounter expedition in command.
For any Internet service, the user's stable, smooth, efficient use of foundation is experience. The CDN's task is to ensure that this "Internet information highway," the smooth traffic, avoid the congestion caused by reduced travel efficiency.
"To be honest though business was a bit tight, but we have not had adequate flow of premonition of the next pandemic, so early basically before multiplexing technology solutions, combined with the experience accumulated during a double and a field of 11 major events per year , we quickly put through a program run. "Yu Yi said.
(Home office, figurative meaning taking up her daughter's small desk)
However, when February 1st, engineers felt wrong, menacing new virus to crown them a surprise hit. Under a large number of flow lines transferred to the line length and the explosive growth of online user, it also brings blowout bandwidth requirements. Proposed expansion of customer demand for more and more, the system estimates before pushing traffic flow and bandwidth the next few weeks will be much more than expected data.
The entire nail group filled with these words: "Customers want to increase the amount next Monday to turn 10 times faster to do the program!", "It's been a steady wave peak to predict the next wave after two hours", "Customer end quality data to pull out, pull will take half an hour after optimization "," video bit rate of the stream to stabilize control in 850Kbps, who will do it with me? "," this delay is certainly not, can not give a bad tune customers on the line ',' node level is close to the threshold security "...... figurative meaning mind was hanging up.
Everyone is involved in this battle is not easy. Time is tight and heavy task, this group of engineers to within just a few days to complete reserve and resource scheduling, live technical adjustment programs, spare contingency plans, but also to ensure the synchronization of online customer questions and response escort with them Kang Zhu wave after wave of peak traffic.
Tempered "plague" should not resign
Why the expansion? When the encounter network traffic surge, the user requests grew, the platform facing the downstream flow of bandwidth rising, server stress becomes large, the site responds slowly, even the effect of variation wheat, music and picture are not synchronized, a series of interactive untimely chain reaction will appear online education, video conferencing, interactive video services such as live bear the brunt. In order to ensure that the user experience is not affected, not to become a drag-bandwidth business growth, advance "prepared food" is the best choice.
Brothers team such as nails, their urgent expansion of 10,000 in Ali cloud cloud server to ensure continuous and stable business. Ali cloud also made to the CDN expansion requirements, to ensure that nail video conferencing, broadcast user group smooth experience.
(Picture taken from the network: start this season, nailed a video conference is the norm)
Everyone knows that traffic will grow, but in the end the number will go up, at what point in time to usher in the outbreak, no one dared to ensuring. So frequent expansion and a huge body mass but also to the CDN system has brought no small challenge:
First, the special period is still to ensure delivery efficiency
Epidemic came too suddenly, the impact of the rapid growth of traffic to the system to bring as much as 11 double every year, but left everyone time to prepare is often only a few days to maintain sufficient bandwidth resources, elasticity, in a relatively short time emergency expansion for many customers is a great challenge, coupled with road closures during the epidemic, closed city, construction workers isolated from other uncontrollable factors, abnormal expansion of the road hardship;
Second, the more traffic platform, the greater test of the dispatch system
When there is a growing number of CDN platform influx of traffic, how to plan resources more efficiently, achieve full network load balancing? How to achieve accurate traffic prediction and control? How to give business the necessary flexibility? How intelligent analysis of traffic portraits, accurate judgments and estimates the CPU and bandwidth consumption, fine-grained scheduling resources for each channel broadcast all of these difficulties;
Third, business stability protection under the extreme scenario
During the existence of the epidemic of various objective factors, involving a live link to the plug-flow, transcoding, recording, screenshots, time shifting, distribution, etc. links are very long, and how to avoid resource bottlenecks in advance of such extreme scene? If it does, what emergency means solvable? How to minimize the impact on customers?
Fourth, every customer Shigeyasu
Behind every online education and remote office platform during the epidemic we are carrying a hope, site engineers away from customers, many of which are isolated at home, but still want to maintain the temporary changes in demand rapid response and high quality delivery.
"The challenge is bigger, nor can the pace of customer service to scare stopped. From 2014 Ali goes on-line to CDN Now, this challenge does not exist all the time, so our weapons (technology) in order to be more wear brighter light , we are confident to win this encounter of. "Yu Yi said.
First of all, in terms of resources deployed, Ali cloud distribution global CDN edge node 2800 and 130Tbps bandwidth of reserves, already has sufficient flexibility capacity, the team also set up a special team to support epidemic, which responsible for resource management and construction classmates stare 7 * 18 hours follow-up disk resource expansion, to ensure flexibility. Secondly, in the dispatch system, Ali cloud intelligent scheduling system can achieve 15% automation compatible business resiliency, the node level to ensure smooth running at 80%, and portraits and precise analysis based on minute-level log-based global LDNS, in order to complete deviation 5 % within the flow of accurate forecasts, while ensuring scheduling policy of seconds to take effect. Third, after 11 years and 11 double 2018 World Cup in Russia grinding, CDN video high concurrency scenarios are already familiar with this type of business, with a proven solution and complete contingency plans. In the process of serving more than 300,000 customers in, for on-demand, live, HTTPS, large files, client, content security, such as different types of business, technical reserves system is also relatively abundant, can provide customers with the scene, targeted acceleration program, to maximize revenue.
Every business change will catalyze innovation and application of new technologies, the ultimate zipper also gave a lot of new technology to show its mettle chance Ali cloud cloud video, online education industry solutions to help low-latency, high concurrency, large General problems of bandwidth and other industries. Among them, ultra-low latency live RTS (Real-time Streaming) service during the epidemic support a large number of online education platform, plug-flow end in a live, play end integrated cloud Ali SDK embedded proprietary protocol, to achieve broadcast delay to downgrade to one hundred millisecond; concurrent multi-center one million plug-flow solution that provides full link specifically to deal with the massive push to optimize the flow of the scene, the platform can help more calmly deal with short-term concurrent commencement; adaptive bitrate solution uses machine learning methods, by analyzing the complexity of encoding information and history to be coded frames, without affecting the human eye to watch the subjective quality and reduce the consumption rate low complexity of the scene, each frame can ensure the most appropriate bit rate encoding, thereby online education scene for more than 50% lower rate, significant savings in bandwidth costs.
"In the past few years of professional experience and convoy technical reserves allow the team emboldened enough, the next few waves also smooth traffic peaks spent. Live watching a steady customer, CDN market stability, we have to sleep in order to secure a sleep. "Yu Yi said.
That mission will be to hit the road running
Over the past more than one month, many years of cooperation platform for online education continue to overweight, education departments launched frequent air classroom on the line, and fraternal teamwork in full swing, Ali cloud cloud did not stop the video.
Since January 31, online education warlords everywhere, CDN service nodes and edges begin the major platform expansion Shigeyasu for ape counseling, a good future, VIPKID, dozens of platforms to provide technical support.
February 3, special commencement date, CDN escort online 10 million enterprises on the nails start, for video conferencing, live smooth access group to provide strong protection.
February 3, Ali cloud and cloud video Paul Wolff jointly build "air classroom" to help Huanggang senior high school class back to the classroom to ensure that the entire system in case of live line growth several times, still able to maintain high-definition picture quality and smooth interactive experience.
February 6, Ali cloud cloud video posted online education school kept closed special support program, with a free suite of products and ten million subsidy fund comprehensive education institutions rush to the rescue and SaaS partners, through video on demand, live video, RTC and other technology products Fu to educate customers faster and more economical to build multi-terminal distance learning applications.
February 10, Ali cloud Tianyu with education, science and technology to build micro roar of Wuhan education cloud "air classroom" on the line. Also in the day, 600,000 teachers nationwide live in nail school, CDN protect the 50 million students in the country "home school" low latency, flow experience.
(National School Internet cloud platform on-line)
February 17, National School Internet cloud platform officially opened. In the 7 days before this, Ali completed all CDN cloud resource deployment, to ensure adequate network bandwidth and stable platform for video transmission link.
February 19, Ningbo Education Bureau "Yong school cloud" total page views exceeded 25 million times, total traffic reaches 1200T, the equivalent of 3 million class has been accessed, the video Ali cloud cloud provide a multi-center deployment and live the nearest node access quality for millions of students of class experience escort.
Up to now, closed non-stop online education school special support plans to release more than a month, has accumulated thousands of small and medium enterprises to provide specific technical support and free goods and services. More than that, Ali cloud clouds video for All "cloud New Year, dinner clouds, cloud disco" erected a solid, the flow speed of the Great Wall, at this moment, the story continues.
(Online education special support activities section Products)
Future warm spring bloom has come
Epidemic to national life and economy took a hit, but also give you daily work and life have brought a lot of inconvenience. But change the objective environment, allows online education, online office, broadcast and other interactive "online" business development opportunities ushered in the accident. Future, retail, finance, government, healthcare ...... more and more industries will be eyeing the "online", online, digital transformation will make cloud computing as an IT infrastructure more demanding, while the CDN online business adhere to the "smooth, stable and reliable," the best defense.
In order to make the digital economy base flow, Ali cloud cloud video not only increase investment in terms of resources and goods and services, also do focus a lot of technical input in the field of intelligent middle-edge security: "We have built from intelligent transport dimensional, real-time data monitoring, network-wide dynamic perceived failure to implement intelligent self-healing of the whole link intelligent operations support platform for the lifting system stability, to ensure services 7 24- 365 reliable, while this kind against government websites, financial, corporate office the business scenario has special needs for safety, we are also included on the CDN edge protection, support edge WAF, DDoS protection, anti-CC, anti-Web application attacks, HTTPS encrypted transmission, while providing client-oriented anti-climb, anti-tampering, theft chain, anti-hijacking and other means of protection .CDN has passed and other insurance 2.0 3 certification, hoping to bring security and accelerate-stop experience for our customers. "introduction to the figurative meaning.
5G times, more online video class innovative applications will be activated, CDN content distribution will evolve into value delivery, as a basis for computing the edge of technology and carrying traffic combined, become all walks of life to enhance efficiency and optimize the management, intelligent powerful driving force application.
Unconsciously, the window is already warm spring, the city is recovering, the figurative meaning and thought: "Maybe next spring CDN has also been on the road."
Cloud shopping season CDN & video cloud deals
Click directly on the cloud procurement season, acquiring CDN and cloud product offers video
Original link
This article Yunqi community original content may not be reproduced without permission.
