12:25 p.m.
Hi,
I'm using Xen 3.2 (Debian Lenny) and libvirt 0.7.1.
When I use Domain.migrate() from libvirt-java 0.3.0, a following
Connect.listDomains() gives wrong DomainIDs (they seem to be the ones before
the migration) and therefore DomainLookupByID() fails because of a
nonexistent ID. Restarting libvirtd and/or xend doesn't help. xm list etc.
output is still correct, but anything that uses libvirt (like virt-top) is
having troubles. The migration itself is working without glitches, the
domains are up&running and responsive. But at this point, libvirt is
completely mistaken about the running domains and their IDs.
There are some quite similar bug reports and mails here, but they are rather
old.
Shall I provide more debug output?
tia&kr,
thomas
1:20 p.m.
New subject: [libvirt] Re: Xen: Domain.migrate() causes invalid listDomains() output
And some more interesting behaviour:
When I do
node01:~# xm migrate -l wp02 node02
after libvirt has lost track of wp01, it reappears again at node02!
node02:~# xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 192 2 r----- 74.1
wp01 3 512 2 -b---- 1.8
wp02 4 512 2 -b---- 0.0
But now, wp02 is not seen by libvirt. And I can push it further:
node02:~# xm create wp03.cfg
Using config file "/etc/xen/wp03.cfg".
Started domain wp03
node02:~# xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 192 2 r----- 80.5
wp01 3 512 2 -b---- 2.2
wp02 4 512 2 -b---- 0.4
wp03 5 512 2 -b---- 5.2
Now guess, wp02 reappears, but wp03 is missing. It seems to me that the domain
with the highest ID is missing.
node02:~# xm create wp04.cfg
Using config file "/etc/xen/wp04.cfg".
Error: I need 524288 KiB, but dom0_min_mem is 262144 and shrinking to 262144
KiB would leave only 200712 KiB free.
node02:~#
Now, wp03 shortly pops up, but is then lost again.
# xm shutdown wp03
Now wp02 is lost again!
# xm shutdown wp02
and now, wp01.
1:38 p.m.
New subject: [libvirt] Re: Xen: Domain.migrate() causes invalid listDomains() output
On Wed, Oct 07, 2009 at 11:20:11AM +0200, Thomas Treutner wrote:
And some more interesting behaviour:
When I do
node01:~# xm migrate -l wp02 node02
after libvirt has lost track of wp01, it reappears again at node02!
node02:~# xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 192 2 r----- 74.1
wp01 3 512 2 -b---- 1.8
wp02 4 512 2 -b---- 0.0
But now, wp02 is not seen by libvirt. And I can push it further:
What is the output of 'xenstore-ls' on each host machine at this time ?
Daniel
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1:59 p.m.
New subject: [libvirt] Re: Xen: Domain.migrate() causes invalid listDomains() output
On Wednesday 07 October 2009 11:38:31 Daniel P. Berrange wrote:
What is the output of 'xenstore-ls' on each host machine at
this time ?
http://tt.scripty.at/tmp/node01-xenstore-ls.txt.gz
http://tt.scripty.at/tmp/node02-xenstore-ls.txt.gz
node01:~# xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 256 2 r----- 29.1
wp02 2 512 2 -b---- 0.0
node02:~# xm list
Name ID Mem VCPUs State
Time(s)
Domain-0 0 192 2 r----- 34.1
wp01 2 512 2 -b---- 0.0
wp02@node01 is missing!
thanks,
t
1:41 p.m.
New subject: [libvirt] Re: Xen: Domain.migrate() causes invalid listDomains() output
On Wed, Oct 07, 2009 at 11:59:47AM +0200, Thomas Treutner wrote:
On Wednesday 07 October 2009 11:38:31 Daniel P. Berrange wrote:
> What is the output of 'xenstore-ls' on each host machine at this time ?
http://tt.scripty.at/tmp/node01-xenstore-ls.txt.gz
http://tt.scripty.at/tmp/node02-xenstore-ls.txt.gz
wp02@node01 is missing!
As discussed on IRC, it'd be very helpful if you could try a build with
the two patches I've just posted since we're hopeful they'll resolve
the problem
http://www.redhat.com/archives/libvir-list/2009-October/msg00289.html
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
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