[ovirt-users] ovirt-guest-agent.service has broken in Debian 8 virtual machines after updates hosts to 4.2

Алексей Максимов aleksey.i.maksimov at yandex.ru
Fri Jan 5 17:41:43 UTC 2018 

Hello Ed.

I found another way to solve the problem.
But I do not know if it's the right way :(
So I decided to ask a question here. But none of the gurus answered.


# mkdir ~/packages
# cd ~/packages
# wget http://ftp.us.debian.org/debian/pool/main/o/ovirt-guest-agent/ovirt-guest-agent_1.0.13.dfsg-2_all.deb
# apt-get install gir1.2-glib-2.0 libdbus-glib-1-2 libgirepository-1.0-1 libpango1.0-0 libuser1 python-dbus python-dbus-dev python-ethtool python-gi qemu-guest-agent usermode
# dpkg -i ~/packages/ovirt-guest-agent_1.0.13.dfsg-2_all.deb

# systemctl restart ovirt-guest-agent.service
# systemctl status ovirt-guest-agent.service

* ovirt-guest-agent.service - oVirt Guest Agent
   Loaded: loaded (/lib/systemd/system/ovirt-guest-agent.service; enabled)
   Active: failed (Result: exit-code) since Wed 2018-01-03 22:52:14 MSK; 1s ago
  Process: 23206 ExecStart=/usr/bin/python /usr/share/ovirt-guest-agent/ovirt-guest-agent.py (code=exited, status=1/FAILURE)
  Process: 23203 ExecStartPre=/bin/chown ovirtagent:ovirtagent /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 23200 ExecStartPre=/bin/touch /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 23197 ExecStartPre=/sbin/modprobe virtio_console (code=exited, status=0/SUCCESS)
 Main PID: 23206 (code=exited, status=1/FAILURE)


As we can see, the service does not start.
In this case, the error in the log (/var/log/ovirt-guest-agent/ovirt-guest-agent.log) will be different:

MainThread::INFO::2018-01-03 22:52:14,771::ovirt-guest-agent::59::root::Starting oVirt guest agent
MainThread::ERROR::2018-01-03 22:52:14,773::ovirt-guest-agent::141::root::Unhandled exception in oVirt guest agent!
Traceback (most recent call last):
  File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 135, in <module>
    agent.run(daemon, pidfile)
  File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 65, in run
    self.agent = LinuxVdsAgent(config)
  File "/usr/share/ovirt-guest-agent/GuestAgentLinux2.py", line 472, in __init__
    AgentLogicBase.__init__(self, config)
  File "/usr/share/ovirt-guest-agent/OVirtAgentLogic.py", line 188, in __init__
    self.vio = VirtIoChannel(config.get("virtio", "device_prefix"))
  File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 162, in __init__
    self._stream = VirtIoStream(vport_name)
  File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 143, in __init__
    self._vport = os.open(vport_name, os.O_RDWR)
OSError: [Errno 13] Permission denied: '/dev/virtio-ports/ovirt-guest-agent.0'

As a workaround for this problem, I use this:

# cat /etc/udev/rules.d/55-ovirt-guest-agent.rules

SYMLINK=="virtio-ports/ovirt-guest-agent.0", OWNER="ovirtagent", GROUP="ovirtagent"

refresh udev:

# udevadm trigger --subsystem-match="virtio-ports"


# systemctl restart ovirt-guest-agent.service
# systemctl status ovirt-guest-agent.service

* ovirt-guest-agent.service - oVirt Guest Agent
   Loaded: loaded (/lib/systemd/system/ovirt-guest-agent.service; enabled)
   Active: active (running) since Wed 2018-01-03 22:54:56 MSK; 6s ago
  Process: 23252 ExecStartPre=/bin/chown ovirtagent:ovirtagent /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 23249 ExecStartPre=/bin/touch /run/ovirt-guest-agent.pid (code=exited, status=0/SUCCESS)
  Process: 23247 ExecStartPre=/sbin/modprobe virtio_console (code=exited, status=0/SUCCESS)
 Main PID: 23255 (python)
   CGroup: /system.slice/ovirt-guest-agent.service
           L-23255 /usr/bin/python /usr/share/ovirt-guest-agent/ovirt-guest-agent.py

Now the service is working.
But I do not know if it's the right way :(

05.01.2018, 19:58, "Ed Stout" <edstout at gmail.com>:
> On 5 January 2018 at 10:32, Алексей Максимов
> <aleksey.i.maksimov at yandex.ru> wrote:
>>  A similar problem is described here:
>>
>>  https://bugzilla.redhat.com/show_bug.cgi?id=1472293
>>
>>  But there is no solution.
>
> There is, but its a bit sparse in the bug report - this worked for me
> on Ubuntu, same problem:
>
> ##
> So I changed value in /etc/ovirt-guest-agent.conf to look like:
> [virtio]
> # device = /dev/virtio-ports/com.redhat.rhevm.vdsm
> device = /dev/virtio-ports/ovirt-guest-agent.0
> ##
>
> Then...
>
> ##
>
> cat /etc/udev/rules.d/55-ovirt-guest-agent.rules
> SYMLINK=="virtio-ports/ovirt-guest-agent.0", OWNER="ovirtagent",
> GROUP="ovirtagent"
>
> udevadm trigger --subsystem-match="virtio-ports"
> ##
>
> After that, the service started for me.
>
>>  02.01.2018, 18:15, "Алексей Максимов" <aleksey.i.maksimov at yandex.ru>:
>>>  Hello, oVirt guru's
>>>
>>>  I just successfully updated my oVirt HE to 4.2.
>>>  But after I upgraded all hosts and virtual machine restart, the ovirt-guest-agent.service has stopped running in virtual machines with Debian Jessie.
>>>
>>>  ----
>>>
>>>  # lsb_release -a
>>>
>>>  No LSB modules are available.
>>>  Distributor ID: Debian
>>>  Description: Debian GNU/Linux 8.10 (jessie)
>>>  Release: 8.10
>>>  Codename: jessie
>>>
>>>  ----
>>>
>>>  # dpkg -l | grep ovirt
>>>
>>>  ii ovirt-guest-agent 1.0.10.2.dfsg-2+deb8u1 all daemon that resides within guest virtual machines
>>>
>>>  Note: This package installed from Debian Jessie official repo
>>>
>>>  ----
>>>
>>>  # systemctl status ovirt-guest-agent.service
>>>
>>>  ● ovirt-guest-agent.service - oVirt Guest Agent
>>>     Loaded: loaded (/lib/systemd/system/ovirt-guest-agent.service; disabled)
>>>     Active: failed (Result: exit-code) since Tue 2018-01-02 17:36:29 MSK; 23min ago
>>>   Main PID: 3419 (code=exited, status=1/FAILURE)
>>>
>>>  Jan 02 17:36:29 APP3 systemd[1]: Started oVirt Guest Agent.
>>>  Jan 02 17:36:29 APP3 systemd[1]: ovirt-guest-agent.service: main process exited, code=exited, status=1/FAILURE
>>>  Jan 02 17:36:29 APP3 systemd[1]: Unit ovirt-guest-agent.service entered failed state.
>>>
>>>  ----
>>>
>>>  From /var/log/ovirt-guest-agent/ovirt-guest-agent.log:
>>>
>>>  MainThread::INFO::2018-01-02 17:36:29,764::ovirt-guest-agent::57::root::Starting oVirt guest agent
>>>  MainThread::ERROR::2018-01-02 17:36:29,768::ovirt-guest-agent::138::root::Unhandled exception in oVirt guest agent!
>>>  Traceback (most recent call last):
>>>    File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 132, in <module>
>>>      agent.run(daemon, pidfile)
>>>    File "/usr/share/ovirt-guest-agent/ovirt-guest-agent.py", line 63, in run
>>>      self.agent = LinuxVdsAgent(config)
>>>    File "/usr/share/ovirt-guest-agent/GuestAgentLinux2.py", line 375, in __init__
>>>      AgentLogicBase.__init__(self, config)
>>>    File "/usr/share/ovirt-guest-agent/OVirtAgentLogic.py", line 171, in __init__
>>>      self.vio = VirtIoChannel(config.get("virtio", "device"))
>>>    File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 150, in __init__
>>>      self._stream = VirtIoStream(vport_name)
>>>    File "/usr/share/ovirt-guest-agent/VirtIoChannel.py", line 131, in __init__
>>>      self._vport = os.open(vport_name, os.O_RDWR)
>>>  OSError: [Errno 2] No such file or directory: '/dev/virtio-ports/com.redhat.rhevm.vdsm'
>>>
>>>  ----
>>>
>>>  Before updating to version 4.2 (for version 4.1.8) everything worked fine.
>>>
>>>  Please help solve the problem
>>
>>  --
>>  С наилучшими пожеланиями,
>>  Максимов Алексей
>>
>>  Email: Aleksey.I.Maksimov at Yandex.ru
>>  _______________________________________________
>>  Users mailing list
>>  Users at ovirt.org
>>  http://lists.ovirt.org/mailman/listinfo/users

-- 
С наилучшими пожеланиями,
Максимов Алексей

Email: Aleksey.I.Maksimov at Yandex.ru

More information about the Users mailing list