Yes, you are right. The HostedEngine vm's default Memory Size is 14940 MB. When I turn down the memory size, the Max free Memory for scheduling new VMs has increased.
Thank you very much. 2017-03-28 16:57 GMT+08:00 Martin Sivak <msi...@redhat.com>: >> Looks like a bug, the "Max free Memory for scheduling new VMs" in the case >> when we do not have memory optimization must be equal to the free memory on >> the host(minus some small amount of the reserved memory). > > This is unfortunately not accurate at all. > > Max free Memory for scheduling new VMs takes into account the > theoretically possible maximal memory consumption of all running VMs. > But the Linux kernel and Qemu won't eat all the physical memory > immediately. That is why you can see pretty big difference between > those two numbers (free memory and memory available for new VMs). > > For example: > > Host 10 GiB of RAM > 2 running VMs configured to eat 4GiB of RAM each > but the VMs are not doing anything and really use only 1GiB of RAM each > > The result? Max memory for new VMs: 2 GiB, Free memory on the host: 8 GiB > > > How many VMs are you running on the host? What are their memory allocations? > > Best regards > > -- > Martin Sivak > SLA / oVirt > > On Mon, Mar 27, 2017 at 10:57 AM, Artyom Lukianov <aluki...@redhat.com> wrote: >> Looks like a bug, the "Max free Memory for scheduling new VMs" in the case >> when we do not have memory optimization must be equal to the free memory on >> the host(minus some small amount of the reserved memory). Can you please >> provide the screenshot of the host in the engine and also output of the >> command # free -h on the problematic host. >> >> Best Regards >> >> On Sun, Mar 26, 2017 at 6:13 PM, yimao <yiima...@gmail.com> wrote: >>> >>> Hi, >>> >>> When I create vm after I have installed ovirt Node 4.1.1 successfully, >>> I got this error message "The host xxxx did not satisfy internal >>> filter Memory because its available memory is too low". >>> >>> I use ovirt node:ovirt-node-ng-installer-ovirt-4.1-2017032304.iso and >>> ovirt-engine-appliance-4.1-20170322.1.el7.centos.noarch.rpm. And I >>> followed the steps in http://www.ovirt.org/node/. >>> >>> I found the informations in "hosts"->"general"->"info" page: >>> "Max free Memory for scheduling new VMs: 356 MB" >>> "Physical Memory: 15747 MB total, 5039 MB used, 10708 MB free" >>> >>> Why the free memory for scheduling new vms is so little? Is there >>> anything wrong with my configuration? >>> >>> Thanks in advance, >>> Yiimao Yang. >>> _______________________________________________ >>> Users mailing list >>> Users@ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >> >> >> >> _______________________________________________ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users