[Engine-devel] oVirt Engine eaten lots of memory when "Make Templates"?

[Edgar]

Hi, all
 I have found oVirt eats lots of memory when "Make Tmplates" from Virtual Machines.
 before make templates I excuted "free" command on oVirt manager console, "Make Templates" on admin web protal
 then excute "free" command again and found the free momory decrease about 30GB (VM disk size configured 30GB)
 after make 2 templates it eaten up all system memory.
 
my oVirt environment:
OS: CentOS 6.4 wih kernel version 2.6.32-358
oVirt engine :3.2.1
qemu:0.12.1.2-2.355
[root at test ~]# rpm -qa |grep ovirt
ovirt-iso-uploader-3.2.0-1.el6.noarch
ovirt-log-collector-3.2.0-1.el6.noarch
ovirt-engine-jbossas711-1-0.x86_64
ovirt-engine-genericapi-3.2.1-1.41.el6.noarch
ovirt-engine-userportal-3.2.1-1.41.el6.noarch
ovirt-engine-sdk-3.2.0.9-1.el6.noarch
ovirt-host-deploy-1.1.0-0.0.master.el6.noarch
ovirt-image-uploader-3.2.0-1.el6.noarch
ovirt-host-deploy-java-1.1.0-0.0.master.el6.noarch
ovirt-engine-dbscripts-3.2.1-1.41.el6.noarch
ovirt-engine-restapi-3.2.1-1.41.el6.noarch
ovirt-engine-tools-3.2.1-1.41.el6.noarch
ovirt-engine-webadmin-portal-3.2.1-1.41.el6.noarch
ovirt-engine-cli-3.2.0.10-1.el6.noarch
ovirt-engine-backend-3.2.1-1.41.el6.noarch
ovirt-engine-setup-3.2.1-1.41.el6.noarch
ovirt-engine-3.2.1-1.41.el6.noarch
[root at test ~]# rpm -qa |grep qemu
qemu-kvm-rhev-0.12.1.2-2.355.el6.2.x86_64
qemu-kvm-tools-0.12.1.2-2.355.0.1.el6.centos.5.x86_64
gpxe-roms-qemu-0.9.7-6.9.el6.noarch
qemu-img-rhev-0.12.1.2-2.355.el6.2.x86_64
[root at test ~]# rpm -qa |grep kernel
kernel-headers-2.6.32-358.11.1.el6.x86_64
kernel-devel-2.6.32-358.11.1.el6.x86_64
dracut-kernel-004-303.el6.noarch
kernel-2.6.32-358.el6.x86_64
kernel-firmware-2.6.32-358.el6.noarch
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