Re: [libvirt] qemu: Add timeout for monitor to avoid virsh getting stuck when monitor gets die.

于 2011年04月06日 16:51, Jiri Denemark 写道: > This is not the right approach. Introducing a timeout into all monitor command > send to qemu is a bad thing. I think the right approach is to have a simple > API which would just return domain's state without talking to its monitor or > doing other complicated stuff. The new API could then be used by virsh list to > list all domains even though they are blocked on qemu monitor. After all, > virsh is not really interested in current memory consumption of domains when > listing them. > IMHO this won't work, if you restart libvirtd after the monitor gets dead, you even can't get connection to libvirtd anymore, see: http://www.redhat.com/archives/libvir-list/2011-March/msg01422.html How to reproduce: 1. setup a virt guest with qemu-kvm, and start it 2. stop qemu process with following: # kill -STOP `ps aux | grep qemu | grep -v grep | awk '{print $2}'` 3. run the following command: 4. # service libvirtd restart 5. # virsh (hangs here)