What do I mean by 'Hosts in Cluster B crashed': I have (3) events (events during which I twinked with the Data Center A network) during which I accumulated symptoms: Event 1: A handful of the several dozen VMs in Cluster B Paused due to Storage Issues. Restarted the VMs to restore service. Event 2: Same Event 3: One of the (3) Hosts in Cluster B rebooted (that's what I mean by 'crash'). gluster was unhappy also (two of the three Hosts also function as Gluster Bricks) ... but that could be a byproduct.
At the start of Event 3, I put hosted-engine into global maintenance mode: hosted-engine --set-maintenance --mode=global Why? Because I was imagining that hosted-engine might perform some sort of connectivity checks with its local IP gateway ... and if it couldn't reach it, then emit some sort of 'shutdown' commands to *all* the KVM hosts it knows about (yes, I'm waiving my hands a lot right here ... ergo my interest in reading about what kind of checks ovirt-engine performs and what kind of remedial action it might take based on the results of those checks). You are suggesting that Cluster B depends, storage-wise, on Cluster A (or, more precisely, on Storage located at Cluster A's site). That's where my thoughts turned immediately ... but thus far, I don't see it in the pcaps I've gathering -- lots of ovirt-engine traffic, but nothing else. More poking needed. ovirt 3.5 glusterfs 3.7.6 I want to do more homework, to demonstrate that Cluster B has no storage dependency on Data Center A. But back to my original question: where might I go to better understand what kind of checks ovirt-engine performs on KVM hosts and what kind of remedial action it might take, based on the results of those checks? --sk _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/TOAV667Y3NOYPDKAIC3LL7PLT3TPP2FM/
