I've been reading about contact session transfering on sc 8.2 and 9.0.1 and I'm wondering of what's the expected behaviour when Sitecore tries to transfer a session between clusters and one doesn't respond for any unforseen reason.
Suppose that Cluster A and Cluster B were exchanging sessions as usual. An Earthquake has its epicentre on Cluster B so it will be out for at least 12 hours while I rebuild the whole thing shoving the debris aside.
How would Cluster A cope with that, particularly on those initial minutes when sessions were still flagged as Cluster B sessions?