[ovirt-devel] [ovirt-users] [OVIRT-3.5-TEST-DAY-3] Optaplanner

[Vojtech Szocs]

----- Original Message -----
> From: "Piotr Kliczewski" <piotr.kliczewski at gmail.com>
> To: devel at ovirt.org
> Sent: Wednesday, September 17, 2014 5:25:23 PM
> Subject: [ovirt-devel] [ovirt-users] [OVIRT-3.5-TEST-DAY-3] Optaplanner
> 
> Hi,
> 
> I followed deployment manual from [1] and configured two DCs with
> single cluster each.
> During configuration of the UI I noticed that in optimizer result tab there
> was:
> 
> Status: Data refresh failed: undefined
> 
> with Martin's help we found that when setting
> 
> security.mixed_content.block_active_content

This happens when WebAdmin page is loaded as HTTPS and UI plugin uses
"active" content (XHR object, <script> etc.) that loads data as HTTP.

Loading HTTP content in HTTPS page is considered security vulnerability
and should be avoided. By default, Firefox blocks mixed "active" content.

More details here: https://support.mozilla.org/en-US/questions/967115

Disabling mixed "active" content in browser is not a proper solution.
UI plugin should load its content in a way that is compatible with
protocol (i.e. HTTPS) used for enclosing page.

> 
> to false in FF configuration it works and I can see:
> 
> Status: Solution received
> 
> During the installation of second host network configuration failed
> and I opened BZ [2].
> When I restored network configuration to the host I wanted to
> provision vms to see optaplanner
> suggestions but my rhel6 failed to start any vms due to:
> 
> Thread-8102::DEBUG::2014-09-17
> 16:36:16,216::libvirtconnection::143::root::(wrapper) Unknown
> libvirterror: ecode: 38 edom: 0 level: 2 message: Child quit during
> startup handshake: Input/output error
> Thread-8102::DEBUG::2014-09-17
> 16:36:16,217::vm::2289::vm.Vm::(_startUnderlyingVm)
> vmId=`9343ea99-4c27-47d3-a4b6-4bd37013ae99`::_ongoingCreations
> released
> Thread-8102::ERROR::2014-09-17
> 16:36:16,217::vm::2326::vm.Vm::(_startUnderlyingVm)
> vmId=`9343ea99-4c27-47d3-a4b6-4bd37013ae99`::The vm start process
> failed
> Traceback (most recent call last):
>   File "/usr/share/vdsm/virt/vm.py", line 2266, in _startUnderlyingVm
>     self._run()
>   File "/usr/share/vdsm/virt/vm.py", line 3368, in _run
>     self._connection.createXML(domxml, flags),
>   File "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py",
> line 111, in wrapper
>     ret = f(*args, **kwargs)
>   File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2665, in
>   createXML
>     if ret is None:raise libvirtError('virDomainCreateXML() failed',
>     conn=self)
> libvirtError: Child quit during startup handshake: Input/output error
> Thread-8102::DEBUG::2014-09-17
> 16:36:16,218::vm::2838::vm.Vm::(setDownStatus)
> vmId=`9343ea99-4c27-47d3-a4b6-4bd37013ae99`::Changed state to Down:
> Child quit during startup handshake: Input/output error (code=1)
> 
> Vdsm is not able to start any vms but engine still thinks that host is 'UP'.
> 
> Thanks,
> Piotr
> 
> [1] http://www.ovirt.org/Features/Optaplanner
> [2] https://bugzilla.redhat.com/show_bug.cgi?id=1142909
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