Does the YI-MapReduce Cluster Support System Reinstallation?
the YI-MapReduce cluster does not support system reinstallation. And we advise against clients remotely accessing CT-ECS to perform high-risk operations such as system reinstallation. These actions may cause faults in the YI-MapReduce cluster, leading to service unavailability.
Does the YI-MapReduce Cluster Support System Switching?
the YI-MapReduce cluster does not support operating system switching on its nodes. If customers are experiencing issues with the YI-MapReduce cluster, we recommend reaching out to the professional customer service of eSurfing Cloud by submitting a work ticket for consultation and communication. We appreciate your understanding.
How to Shut Down the Firewall Service?
1. Access each node of the cluster as the root user.
2. Observe if the firewall service is running.
On ECS nodes, execute the command systemctl status firewalld.service.
Turn off the firewall service.
On ECS nodes, execute the command systemctl stop fir