16.16.9 OS-related problems (when the multi-node function is being used)
If a slave node OS terminates abnormally, that slave node is separated from the multi-node configuration.
If the OS terminates abnormally on the master node, the master node is switched over. The master node whose OS terminated abnormally is separated from the multi-node configuration.
After the operating system is rebooted, eliminate the cause of the problem.