George, overcommit of RAM is 1 and that is working.However instances are still getting created with available free memory < reserved_host_memory_mb On Thu, Nov 27, 2014 at 4:33 PM, George Mihaiescu <lmihaiescu at gmail.com> wrote: > Depending on your overcommit ratio, the scheduler can schedule instances > using more virtual memory than the available physical memory on the host, > 700 MB in your case. > On 27 Nov 2014 05:36, "mad Engineer" <themadengin33r at gmail.com> wrote: > >> hi all i have set >> reserved_host_memory_mb in nova.conf of controller and compute and >> restarted necessary services. >> i am expecting scheduler to not pickup host that has less than what is >> reserved_host_memory_mb >> in my example i put reserved_host_memory_mb = 1024 >> and free RAM in compute node is 700 Mb. >> But still scheduler chooses this host and created a new instance on it.I >> am expecting scheduler to show "No valid Hosts found" as it has less ram >> than reserved_host_memory_mb = 1024 >> >> Can some one help me understand this value >> >> Thanks >> >> _______________________________________________ >> Mailing list: >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> Post to : openstack at lists.openstack.org >> Unsubscribe : >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> >> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20141127/8e61ca7f/attachment.html>