Re: [libvirt-users] Why librbd disallow VM live migration if the disk cache mode is not none or directsync

2019-07-31 Thread Ming-Hung Tsai
Michal Privoznik : > > On 7/29/19 3:51 AM, Ming-Hung Tsai wrote: > > I'm curious that why librbd sets this limitation? The rule first > > appeared in librbd.git commit d57485f73ab. Theoretically, a > > write-through cache is also safe for VM migration, if the cache > > implementation guarantees

[libvirt-users] libvirt/dnsmasq is not adhering to static DHCP assignments

2019-07-31 Thread Christian Kujau
This is basically a continuation of an older posting[0] I found, but apparently no solution has been posted. So, I'm trying to setup static DHCP leases with dnsmasq that is being started by libvirtd: --- $ sudo virsh net-dumpxml --network

Re: [libvirt-users] OVS / KVM / libvirt / MTU

2019-07-31 Thread Alvin Starr
In general if no MTU is set on interface creation the default value is 1500. On OVS the bridge MTU is automatically set to the smallest port MTU. So you just have to set the MTU of each port of the bridge. Take a look at: https://bugzilla.redhat.com/show_bug.cgi?id=1160897 It is a bit of a

Re: [libvirt-users] OVS / KVM / libvirt / MTU

2019-07-31 Thread Michal Privoznik
On 7/29/19 9:23 PM, Sven Vogel wrote: Hi Michal, Thanks for your answer. I don’t understand why an interface created without mtu gets only 1500 visible in the virtual machine but if I create an interface with mtu higher than 1500 e.g. 2000 the bridge will change too. Before the bridge was