[Bug 1861222] Re: Libvirt parallel shutdown is not truly parallel when agent-based shutdown is used

2020-01-31 Thread Christian Ehrhardt 
This is the place to look at for fixes:
- 
https://libvirt.org/git/?p=libvirt.git;a=history;f=tools/libvirt-guests.sh.in;h=a881f6266ea4545ccbb017beac88d6e51b80fa24;hb=HEAD
- https://libvirt.org/hacking.html

If you beat me and submit something upstream before I get to this please
set me on CC.

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Title:
  Libvirt parallel shutdown is not truly parallel when agent-based
  shutdown is used

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[Bug 1861222] Re: Libvirt parallel shutdown is not truly parallel when agent-based shutdown is used

2020-01-30 Thread Aristarkh Zagorodnikov
Bryce, thanks for considering this. Christian, thank you for valuable
information on the reality of bugfixing in this area. This is not a
stopper for us since we run a small amount of "heavy" VMs per
hypervisor. I'll take a look at ways to fix this, but can't promise it
would be very soon.

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Title:
  Libvirt parallel shutdown is not truly parallel when agent-based
  shutdown is used

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[Bug 1861222] Re: Libvirt parallel shutdown is not truly parallel when agent-based shutdown is used

2020-01-29 Thread Christian Ehrhardt 
This will be the same in all versions I have ever seen @Bryce.

Usually in my impression no one really cares about libvirt-guests.sh
except bugs driven through Distro bug reports (of the last 9 changes 8
are Ubuntu and one is Suse). And even less for parallel as Ubuntu is the
only one defaulting to that.

Thanks for the bug @Aristarkh.
We might need to add some bit there to make it truly async then - but the prio 
on it will not be high. I'll keep this open until I get back to it unless 
someone else beats me.

** Changed in: libvirt (Ubuntu)
   Status: Incomplete => Triaged

** Changed in: libvirt (Ubuntu)
   Importance: Undecided => Medium

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Title:
  Libvirt parallel shutdown is not truly parallel when agent-based
  shutdown is used

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[Bug 1861222] Re: Libvirt parallel shutdown is not truly parallel when agent-based shutdown is used

2020-01-29 Thread Bryce Harrington
Thank you, Aristarkh Zagorodnikov, for taking the time to file a bug
report.

In addition to 18.04, does this feature similarly misbehave with newer
versions of libvirt/qemu?  If it's fixed in a newer version then perhaps
there is a patch that can be backported.  If it still isn't working
properly in the latest versions, then it'd likely be worth reporting
upstream as well.

Since there is not enough information in your report to begin triage or
to differentiate between a local configuration problem and a bug in
Ubuntu, I am marking this bug as 'Incomplete'. We would be grateful if
you would: provide a more complete description of the problem, explain
why you believe this is a bug in Ubuntu rather than a problem specific
to your system, and then change the bug status back to 'New'.


** Changed in: libvirt (Ubuntu)
   Status: New => Incomplete

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Title:
  Libvirt parallel shutdown is not truly parallel when agent-based
  shutdown is used

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