Currently, Alibaba Cloud provides two types of cloud networks: classic network and VPC. Many users’ service systems are still using classic networks, while EMR clusters are using VPCs. This section describes how to enable inter-access between ECS on classic networks and EMR clusters on VPC networks.
To solve this problem, Alibaba Cloud launches the ClassicLink Solution. Follow these steps:
- Create a vSwitch according to the CIDR block specified in the ClassLink Solution.
- When creating a cluster, use the vSwitch for the CIDR block to deploy the cluster.
- Connect the corresponding classic network node to VPC in the ECS console.
- Set security group rules.
This is how an inter-access between ECS on a classic network and EMR cluster on a VPC network is realized.