Sporadic cases when a node is down

Can you check for DatabaseHeartBeatInterval ?

select get_config_parameter('DatabaseHeartbeatInterval');

Determines the interval (in seconds) at which each node performs a health check and communicates a heartbeat. If a node does not receive a message within five times of the specified interval, the node is evicted from the cluster. Setting the interval to 0 disables the feature.

Try disabling and see if that helps.
select set_config_parameter('DatabaseHeartbeatInterval', 0);

Or you can also try increasing the interval.

select set_config_parameter('DatabaseHeartbeatInterval', 600);

Thanks guys,

this is something I can start with

In the meanwhile I've created a simple script that every 2 minutes checks if vertica service is running (technically I'm checkin if spread process is available and if not I'm starting the verticad service ), but maybe the way via admintool is better, need to check it, but currently my solution is working, so I will try to test it a few days.

Greetings,

Konrad