[libvirt] VM waiting to start long time

Hi all, I'm have problem with my ovirt. Yesterday, my ovirt nodes (4 nodes) still working fine but today i cannot start vm on one of ovirt nodes (node 2), other node are fine. The status holding "waiting to start" when i try start vm (new or old vm has same result) Log vdsm as below: Many attempting connect to vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:57,563::guestIF::95::vm.Vm:: (_connect) vmId=`ffd60b1c-9a3c-4853-88aa-7973f9756c96`::Attempting connection to /var/lib/libvirt/qemu/channels/4000570- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:58,565::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 32. VM Channels Listener::DEBUG::2013-06-14 17:00:58,565::guestIF::95::vm.Vm:: (_connect) vmId=`187f61c9-d81f-491a-b5f0-4798ec6c8342`::Attempting connection to /var/lib/libvirt/qemu/channels/4000565- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:58,565::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 33. VM Channels Listener::DEBUG::2013-06-14 17:00:58,565::guestIF::95::vm.Vm:: (_connect) vmId=`6c3074ae-c752-4622-94e7-a4ca09b252f7`::Attempting connection to /var/lib/libvirt/qemu/channels/4000563- 02.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:58,565::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 35. VM Channels Listener::DEBUG::2013-06-14 17:00:58,566::guestIF::95::vm.Vm:: (_connect) vmId=`20f144cd-f027-4710-a433-dcdc62eec554`::Attempting connection to /var/lib/libvirt/qemu/channels/4000568- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:58,566::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 37. VM Channels Listener::DEBUG::2013-06-14 17:00:58,566::guestIF::95::vm.Vm:: (_connect) vmId=`ffd60b1c-9a3c-4853-88aa-7973f9756c96`::Attempting connection to /var/lib/libvirt/qemu/channels/4000570- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:59,567::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 32. VM Channels Listener::DEBUG::2013-06-14 17:00:59,567::guestIF::95::vm.Vm:: (_connect) vmId=`187f61c9-d81f-491a-b5f0-4798ec6c8342`::Attempting connection to /var/lib/libvirt/qemu/channels/4000565- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:59,567::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 33. VM Channels Listener::DEBUG::2013-06-14 17:00:59,568::guestIF::95::vm.Vm:: (_connect) vmId=`6c3074ae-c752-4622-94e7-a4ca09b252f7`::Attempting connection to /var/lib/libvirt/qemu/channels/4000563- 02.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:59,568::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 35. VM Channels Listener::DEBUG::2013-06-14 17:00:59,568::guestIF::95::vm.Vm:: (_connect) vmId=`20f144cd-f027-4710-a433-dcdc62eec554`::Attempting connection to /var/lib/libvirt/qemu/channels/4000568- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:00:59,568::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 37. VM Channels Listener::DEBUG::2013-06-14 17:00:59,569::guestIF::95::vm.Vm:: (_connect) vmId=`ffd60b1c-9a3c-4853-88aa-7973f9756c96`::Attempting connection to /var/lib/libvirt/qemu/channels/4000570- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:01:00,569::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 32. VM Channels Listener::DEBUG::2013-06-14 17:01:00,569::guestIF::95::vm.Vm:: (_connect) vmId=`187f61c9-d81f-491a-b5f0-4798ec6c8342`::Attempting connection to /var/lib/libvirt/qemu/channels/4000565- 01.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:01:00,570::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 33. VM Channels Listener::DEBUG::2013-06-14 17:01:00,570::guestIF::95::vm.Vm:: (_connect) vmId=`6c3074ae-c752-4622-94e7-a4ca09b252f7`::Attempting connection to /var/lib/libvirt/qemu/channels/4000563- 02.com.redhat.rhevm.vdsm VM Channels Listener::DEBUG::2013-06-14 17:01:00,570::vmChannels::104::vds:: (_handle_unconnected) Trying to connect fileno 35. VM Channels Listener::DEBUG::2013-06-14 17:01:00,570::guestIF::95::vm.Vm:: (_connect) vmId=`20f144cd-f027-4710-a433-dcdc62eec554`::Attempting connection to /var/lib/libvirt/qemu/channels/4000568- 01.com.redhat.rhevm.vdsm On ovirt portal, the status of node 2 not update, when i tried to start new vm the number vm increase but when i stop vm or even delete them, this number vm's still skip Please help me debug this, sorry about my bad E. Thanks,