Opennebula memory high usage

Hello,
Opennebula 4.12, server 4core, 8gb ram. Hypervisor 3 (testing), opennebula debian 7.8, hypervisor debian 8.1
Opennebula server using memory ~300 MB, I run a opennebula (/etc/init.d/opennebula start) after 10 sec memory usage 2.5 GB. High memory usage process /ur/bin/oned -f. CPU usage ~30%.
Log /var/log/one/oned.log I not see error.
Before new hypervisor added work ok (memory usage ~500-700MB)
Then I start sunstone and go to browser login to opennebula, vm info, memory usage 8gb+ -> OOM killer

How to fix ?

can you check that this is not virtual memory

I restarted the opennebula and sunstone Now using ~7GB RAM and 41MB SWAP.
And this process using 1core and ~3GB ram ruby /usr/lib/one/sunstone/sunstone-server.rb

Sunstone error “It appears there was a server exception. Please check server’s log.”

root@opennebula:~# free -m
total used free shared buffers cached
Mem: 8006 7664 341 0 27 448
-/+ buffers/cache: 7188 817
Swap: 2044 39 2005
root@opennebula:~#

oneadmin 9727 8.6 10.2 2906532 839764 ? Sl 19:19 0:37 /usr/bin/oned -f
oneadmin 9750 0.0 0.0 37968 1124 ? SNl 19:20 0:00 ruby /usr/lib/one/mads/one_vmm_exec.rb -t 15 -r 0 kvm
oneadmin 9820 0.0 0.0 34428 1096 ? SNl 19:20 0:00 ruby /usr/lib/one/mads/one_im_exec.rb -r 3 -t 15 kvm
oneadmin 9833 0.0 0.0 100100 1096 ? SNl 19:20 0:00 ruby /usr/lib/one/mads/one_tm.rb -t 15 -d dummy,lvm,shared,fs_lvm,qcow2,ssh,vmfs,ceph,dev,zvol,zvol-nfs
oneadmin 9849 0.0 0.0 34320 1120 ? SNl 19:20 0:00 ruby /usr/lib/one/mads/one_hm.rb
oneadmin 9866 0.0 0.0 125684 1540 ? SNl 19:20 0:00 ruby /usr/lib/one/mads/one_datastore.rb -t 15 -d dummy,fs,vmfs,lvm,ceph,dev,zvol,zvol-nfs
oneadmin 9882 0.0 0.0 117516 1636 ? SNl 19:20 0:00 ruby /usr/lib/one/mads/one_auth_mad.rb --authn ssh,x509,ldap,server_cipher,server_x509
oneadmin 10259 82.3 86.2 8058428 7072380 ? Sl 19:20 5:38 ruby /usr/lib/one/sunstone/sunstone-server.rb

I’ve started a fresh OpenNebula in a debian 7.8 and it does not have that memory problem. Can you send us the output of onehost list -x?

opennebula about 6 months ok, but last week memory problem

onehost list -x
http://pastebin.com/eedQGUnW