[Info-vax] reboot due to network failure

[JF Mezei]

Phillip Helbig---undress to reply wrote:
> Recently, my switch died, which of course froze my LAN cluster.  When I 
> replaced it with another one (actually a hub; I plan to buy a switch 
> this week), I saw that 2 of the 3 nodes in the cluster rebooted.  What 
> determines whether any nodes reboot and if so which ones?

When a node reconnects with a cluster after the others kicked it out, it
will perform hara kiri because it realises that its lock database and
all other cluster structures are woefully out fo date.  Rebooting is the
simpler way to get the node to rejoin cleanly.

I believe it goes by votes. If one node has quorum (or if a few nodes
managed to stay connected during outage) then they will survive, and
reconncting nodes will reboot.