3:01 a.m.
Hi Milan, sorry for missing this.
In short, it looks like a libvirt/qemu error, I guess it lays
somewhere in the nested environment the Jenkins slave runs at. I was
able to extract the libvirt log from this specific run, but there is
nothing useful there, except that there was no proper termination.
From reading here[1] it might be related to a load on the hypervisor,
and the timeout configured for libvirt to wait for qemu. Unfortunately
looking at the this[2] thread, it seems that a patch to configure the
timeout never got into libvirt, which leaves us with a default of 30
seconds, and that might not be enough in our nested environment. I
presume that if the hypervisor which the Jenkins slave runs is highly
loaded, then when we try to start the vdsm_functional_tests_lago VM,
it might take more than 30 seconds for qemu to respond.
Another indication of this "hypothesis" is that I never seen this
error on OST - which uses bare-metal slaves.
Evgheni, do we have the load monitoring on the hypervisor that runs
vm0065.workers-phx.ovirt.org? Not sure if we added that eventually.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=987088
[2] https://www.redhat.com/archives/libvir-list/2014-January/msg00410.html
On Mon, Apr 10, 2017 at 10:56 AM, Milan Zamazal <mzamazal(a)redhat.com> wrote:
Hi,
after my Vdsm patch https://gerrit.ovirt.org/75329 in ovirt-4.1 branch
had been merged, Jenkins check-merged job
http://jenkins.ovirt.org/job/vdsm_4.1_check-merged-el7-x86_64/173/
failed with the following error:
07:01:21 @ Start specified VMs:
07:01:21 # Start nets:
07:01:21 * Create network vdsm_functional_tests_lago:
07:01:27 * Create network vdsm_functional_tests_lago: Success (in 0:00:05)
07:01:27 # Start nets: Success (in 0:00:05)
07:01:27 # Start vms:
07:01:27 * Starting VM vdsm_functional_tests_host-el7:
07:02:07 libvirt: QEMU Driver error : monitor socket did not show up: No such file or
directory
07:02:07 * Starting VM vdsm_functional_tests_host-el7: ERROR (in 0:00:40)
07:02:07 # Start vms: ERROR (in 0:00:40)
07:02:07 # Destroy network vdsm_functional_tests_lago:
07:02:07 # Destroy network vdsm_functional_tests_lago: ERROR (in 0:00:00)
07:02:07 @ Start specified VMs: ERROR (in 0:00:46)
07:02:07 Error occured, aborting
07:02:07 Traceback (most recent call last):
07:02:07 File "/usr/lib/python2.7/site-packages/lago/cmd.py", line 936, in
main
07:02:07 cli_plugins[args.verb].do_run(args)
07:02:07 File "/usr/lib/python2.7/site-packages/lago/plugins/cli.py", line
184, in do_run
07:02:07 self._do_run(**vars(args))
07:02:07 File "/usr/lib/python2.7/site-packages/lago/utils.py", line 495,
in wrapper
07:02:07 return func(*args, **kwargs)
07:02:07 File "/usr/lib/python2.7/site-packages/lago/utils.py", line 506,
in wrapper
07:02:07 return func(*args, prefix=prefix, **kwargs)
07:02:07 File "/usr/lib/python2.7/site-packages/lago/cmd.py", line 264, in
do_start
07:02:07 prefix.start(vm_names=vm_names)
07:02:07 File "/usr/lib/python2.7/site-packages/lago/prefix.py", line 1033,
in start
07:02:07 self.virt_env.start(vm_names=vm_names)
07:02:07 File "/usr/lib/python2.7/site-packages/lago/virt.py", line 331, in
start
07:02:07 vm.start()
07:02:07 File "/usr/lib/python2.7/site-packages/lago/plugins/vm.py", line
299, in start
07:02:07 return self.provider.start(*args, **kwargs)
07:02:07 File "/usr/lib/python2.7/site-packages/lago/vm.py", line 106, in
start
07:02:07 dom = self.libvirt_con.createXML(self._libvirt_xml())
07:02:07 File "/usr/lib64/python2.7/site-packages/libvirt.py", line 3782,
in createXML
07:02:07 if ret is None:raise libvirtError('virDomainCreateXML() failed',
conn=self)
07:02:07 libvirtError: monitor socket did not show up: No such file or directory
07:02:07 Took 210 seconds
The error is apparently unrelated to my patch since: 1. my patch should
have nothing to do with VM start; 2. Jenkins has run successfully on the
following patch (https://gerrit.ovirt.org/75321). FWIW, the preceding
patch (https://gerrit.ovirt.org/75038) has run successfully too.
Do you know what's wrong?
Thanks,
Milan
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