[NikolaeVarius]

In many HA setups, you're supposed to not have to care if any single thing goes down because it should auto recover

The article said that the node stalled in a way that was unforseen which may have caused standard recovery mechanisms to silently fail.

[laCour]

Right, but they didn't recover speedily. To have the cluster in such a state for so long sounds like poor monitoring to me because this can knowingly interfere with an election later.

[kortilla]

The health check said it was ok. How would they know it needed to be recovered?

The fault was the bad health check. Not the process.

[laCour]

They only just clarified that monitoring was in place and they were reporting as healthy. See the comments above.