Updated on 2025-07-22 GMT+08:00
What Can I Do If the Connection Test Failed?
Fault Locating
- Check security group rules.
- Check network ACLs.
- Check the NIC information of ECSs.
- Check the disconnected ports.
Solution
- Log in to the management console.
- Click
in the upper left corner and select a region and project. - Click
in the upper left corner of the page, choose . - On the Instances page, click the instance name to go to the Basic Information page. In the Network Information area of the page, view the VPC where the TaurusDB instance is located.
- Check whether the TaurusDB instance to which distributed transactions are added is in the same VPC as an ECS.
- If they are in the same VPC, see Why Does Communication Fail Between Two ECSs in the Same VPC or Packet Loss Occur When They Communicate?
- If they are in different VPCs:
- Public access: Bind an EIP to the instance. For details, see Binding an EIP.
- Private access: Create a VPC peering connection.
- Change the VPC hosting the ECS to the same as that hosting the TaurusDB. For details, see Changing a VPC.
Parent topic: Database Connections
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