Take the following procedure on all nodes.
Disable the firewall.
Make sure that "firewalld" is disabled.
# systemctl is-enabled firewalld
If it is enabled, disable it.
# systemctl stop firewalld # systemctl disable firewalld
Set NTP.
Make sure to set NTP when building the cluster to synchronize the time of each node in the cluster system.
Set NTP before installing PRIMECLUSTER.
Set the credentials of the AWS Command Line Interface.
Set the credentials with the root user with the "aws configure" command.
If the named profile is specified when the settings are configured, make a note of the profile name that is required for setting the shutdown facility and setting the network takeover function.
Example) The following are examples when setting the credentials for the AWS Command Line Interface.
When "userprofile1" is used for the profile name
# aws configure --profile userprofile1
When the default profile is used
# aws configure
Specify "json" for the Default output format. Also, when using an IAM role for access permissions, leave the AWS Access Key ID and the AWS Secret Access Key blank (press the Enter key only).
See
For details on setting the credentials of the AWS Command Line Interface, refer to the official AWS documentation.