kvm starting domain: cannot send monitor command

cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peerhtml

Traceback (most recent call last):

File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper

callback(asyncjob, *args, **kwargs)

File "/usr/share/virt-manager/virtManager/engine.py", line 956, in asyncfunc

vm.startup()

File "/usr/share/virt-manager/virtManager/domain.py", line 1048, in startup

self._backend.create()

File "/usr/lib64/python2.6/site-packages/libvirt.py", line 325, in create

if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)

libvirtError: cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer

1) Remove any snapshot available

# rm -f /var/lib/libvirt/qemu/save/my-virtual-machine-name

2) restart libvirtd

# service libvirtd restart

3) Start the virtual machine again

+++++++++++++++++++++++++++++++++++++++++python

解決 libvirt 無法啟動虛擬機器的問題

by Jamyy on 十二月.21, 2011, under Linuxlinux

libvirt Host (CentOS 6.1) 執行 init 0 關機後, 再開機時發現虛擬機器無法啟動, start guest1 出現錯誤訊息以下:app

 
       cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer

同時 /var/log/messages 亦記錄了:dom

 
       1 
       error : qemuMonitorJSONCommandWithFd:243 : cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer 
      
       2 
       error : virCgroupRemoveRecursively:679 : Unable to remove /cgroup/cpu/libvirt/qemu/guest1/ 
      
       3 
       error : virCgroupRemoveRecursively:679 : Unable to remove /cgroup/cpuacct/libvirt/qemu/guest1/ 
      
       4 
       error : virCgroupRemoveRecursively:679 : Unable to remove /cgroup/cpuset/libvirt/qemu/guest1/ 
      
       5 
       error : virCgroupRemoveRecursively:679 : Unable to remove /cgroup/memory/libvirt/qemu/guest1/ 
      
       6 
       error : virCgroupRemoveRecursively:679 : Unable to remove /cgroup/devices/libvirt/qemu/guest1/ 
      
       7 
       error : virCgroupRemoveRecursively:679 : Unable to remove /cgroup/freezer/libvirt/qemu/guest1/ 
      
       8 
       error : virCgroupRemoveRecursively:679 : Unable to remove /cgroup/blkio/libvirt/qemu/guest1/

後來發現從新 define 就能解決, 操做步驟為:async

virsh dumpxml guest1 > guest1.xml
virsh undefine guest1
virsh define guest1.xml
virsh start guest1ide