[ceph-users] Re: switch restart facilitating cluster/client network.

2022-01-26 Thread Marc
Thanks for the tips!!! > > I would still set noout on relevant parts of the cluster in case something > goes south and it does take longer than 2 minutes. Otherwise OSDs will > start outing themselves after 10 minutes or so by default and then you > have a lot of churn going on. > > The monitors

[ceph-users] Re: switch restart facilitating cluster/client network.

2022-01-25 Thread Tyler Stachecki
I would still set noout on relevant parts of the cluster in case something goes south and it does take longer than 2 minutes. Otherwise OSDs will start outing themselves after 10 minutes or so by default and then you have a lot of churn going on. The monitors monitors will be fine unless you lose

[ceph-users] Re: switch restart facilitating cluster/client network.

2022-01-25 Thread Janne Johansson
If you can stop VMs it will help, even if the cluster recovers quickly, VMs take great offense if a write does not finish within 120s, and many will put filesystems in readonly-mode if writes are delayed for so long, so if there is a 120s outage of IO, the VMs will be stuck/useless anyhow so you mi