Red Hat Bugzilla – Bug 888476
virt-manager ui is blocked while connecting to remote libvirt
Last modified: 2013-09-02 08:39:55 EDT
Description of problem:
The virt-manager ui freezes when I connect to a remote libvirt instance over a slow connection.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Launch virt-manager and add remote libvirt instance qemu+ssh which is behind a slow link
2. Double-click on freshly created connection
virt-manager freezes until the connection is established - including all open guest windows!
I can happily continue working with the UIs beeing frozen.
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I think I'm seeing this on a system I just upgraded to Fedora 18. I have about 15 remote systems and they come up as "connecting", with the virt-manager UI unresponsive.
There's two pieces here: initial connection polling is done synchronously. This is fixed upstream and in F20/rawhide, but is not backportable due to its invasiveness. Closing this as RAWHIDE
The other issue is that virt-manager just doesn't work well with high latency connections. There's things we can do to improve that are tracked else where, but at the end of the day it's never going to be quick when every tiny API call has a half second round trip.
Thanks for this update.