Help Center> Data Warehouse Service> FAQs> Database Connections> What Should I Do If I Cannot Connect to a Data Warehouse Cluster?
What Should I Do If I Cannot Connect to a Data Warehouse Cluster?
Troubleshooting
Check:
- Whether the cluster status is normal.
- Whether the connection command, username, password, IP address, and port are correct.
- Whether the operating system type and version of the client are correct.
- Whether the client is properly installed.
If cluster connection failed on the public cloud, check the following items:
- Whether the ECSs are in the same AZ, VPC, subnet, and security group as the cluster.
- Whether the inbound and outbound rules of the security group are correct.
If cluster connection failed through the Internet, confirm the following items:
- Whether your network is connected to the Internet.
- Whether the firewall blocked access.
- Whether you need to access the Internet through a proxy.
Technical Support
If the fault cannot be identified, submit a service ticket to report the problem: Log in to the management console and choose Service Tickets > Create Service Ticket.
Parent topic: Database Connections
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