What happens if a MON node goes down?

There are 3 MON needed, what happens if any of node go down? Will it impact the Cluster Work?


  • Temporarily (for minutes, hours, or even days) the cluster will survive just fine with only 2 MONs, giving you the deliberate time that you need to replace the failed MON. The longer the cluster goes with only 2 MONs, the higher the risk that the 2 MONs will get out of sync and will not be able to serve the cluster maps to clients. While the cluster is operating with only 2 MONs, the cluster health will be reported as “HEALTH_WARN”, but the cluster will still operate.

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