For Alibaba Cloud, a stack is a group of Alibaba Cloud resources. ROS uses stacks (a type of logical collection) to centrally manage grouped cloud resources. What Is ROS?Īlibaba Cloud ROS is an orchestration service that helps you automatically create, update, and delete cloud resources. ROS helped DingTalk deploy more than 10,000 ECS instances in just 2 hours, setting a new record of rapid scale-up in Alibaba Cloud. Fast and Automatic Deployment Through ROSīefore February 2 when traffic spikes emerged, DingTalk used Alibaba Cloud Resource Orchestration Service (ROS) to improve cluster deployment efficiency and implement quick cluster scale-up. The DingTalk team also faces great technical challenges from creating and operating massive clusters. For example, a cluster uses port 300 as the SLB listening port, whereas another cluster uses port 3000 for the same purpose. Configuration differences often occur from cluster to cluster.
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Poor fault tolerance and difficult troubleshooting in manual deployment mode. It is difficult to manage the relationships of one thousand resources, let alone the case of over one million.
To enable hundreds of millions of workers and students working and learning from home, the DingTalk team needs to scale up nearly one thousand clusters within a short period of time. The conventional deployment approach may reduce scale-up efficiency and increase the complexity of large cluster management. The scale-up project of DingTalk involves 8 regions and 16 zones. Cluster service capabilities are self-closed and can be scaled up without limits, but this increases deployment complexity. The deployment process requires many configuration steps, which is prone to mistakes.Ĭomplex deployment. It takes about 1 hour to manually deploy a cluster, and only 3 to 4 clusters can be simultaneously operated at a time. Inefficient manual deployment with a high error rate. These resources need to be purchased separately, and their relationships need to be manually configured. Different from a single cluster of Elastic Compute Service (ECS), the system architecture of DingTalk contains a variety of resources, including Server Load Balancer (SLB), ApsaraDB for MongoDB, ApsaraDB for Redis, and Elastic IP (EIP). As of February 2, resources were scaled up only by several times, from the initial 20,000 vCPUs to 30,000 vCPUs, which seriously fell short of business demand.Ĭomplex purchase and configuration procedures. The DingTalk team has been fully devoted to scale-up in Alibaba Cloud 24 hours a day since January 29. The DingTalk technical team had to solve the problem of traffic spikes in just a few days.
So, how did DingTalk achieve this? Two Challenges of Extensive Scale-up: Efficiency and Resource Supply Challenge of Manual Scale-up: Low EfficiencyĪ pressing deadline. Developed on the cloud, DingTalk is the target of Alibaba Cloud's initial effort of resource scale-up, satisfying the needs of users who work and learn from home with superior experience. Since January 28, DingTalk has experienced multifold increase in access traffic from audiovisual conferencing and live streaming. A thought-provoking comment popped up on the Internet among the negative opinion of netizens: DingTalk was put into a predicament when primary and secondary school students vented their anger online about DingTalk's performance while joking about giving one star at a time out of a five-star rating to DingTalk. The surging traffic in DingTalk ushered in the technical challenge of resource scale-up.
#Dingtalk classroom trial#
In response to the Chinese Education Department's call to keep learning outside physical classrooms, DingTalk provides free trial of online classes for teachers.
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DingTalk, the preferred online office software for many enterprises, has seen a surge in user traffic, especially users with the demand for video conferencing and live streaming. New Challenges Arising from the Recent Outbreakĭue to the recent travel restrictions from the coronavirus outbreak, there has been rising demands for online education and online office applications all over the world, especially in Mainland China. Its underlying computing resources are provided by Alibaba Cloud Computing. In February 5, 2020, DingTalk ranked the No. So far, DingTalk has more than 200 million users and is the largest work-on-the-go application in China. DingTalk has served more than 10 million enterprise customers and recently expanded to the education market to provide rich remote classroom solutions. DingTalk is an enterprise-oriented instant messaging software launched by Alibaba Group, providing functions such as online organization, online communication, online collaboration, online business, and online ecosystem to enterprise users.
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