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we have a mixed 4.4/5.3 cluster, it's our production system, so the upgrade is very slow. recently we got a lot problems when upgrade or add new installed 5.4 box to cluster, sometimes the whole cluster locked up, corosync use 100%cpu. only separate the new box from cluster can restore it...

I've 7 node Proxmox Cluster(4.2, just wait a good time to upgrade to 4.3), and on 2 of those nodes, LXC show strange performance when run with multi-thread programs. a lxc config with 4 cpu quota root@pve2:~# more /etc/pve/lxc/165.conf arch: amd64 cpulimit: 4 cpuunits: 1024 hostname: tmpcpu...