[ovirt-devel] Failure in log collector on master: Failure fetching information about hypervisors from API. Error (ValueError): legacy is not a valid RngSource

[Rafael Martins]

----- Original Message -----
> From: "Juan Hernández" <jhernand at redhat.com>
> To: "Yaniv Kaul" <ykaul at redhat.com>
> Cc: "Sandro Bonazzola" <sbonazzo at redhat.com>, "Rafael Martins" <rmartins at redhat.com>, "Ondra Machacek"
> <omachace at redhat.com>, "devel" <devel at ovirt.org>
> Sent: Friday, September 2, 2016 2:31:42 PM
> Subject: Re: [ovirt-devel] Failure in log collector on master: Failure fetching information about hypervisors from
> API. Error (ValueError): legacy is not a valid RngSource
> 
> On 09/02/2016 02:24 PM, Yaniv Kaul wrote:
> > On Fri, Sep 2, 2016 at 3:14 PM, Juan Hernández <jhernand at redhat.com
> > <mailto:jhernand at redhat.com>> wrote:
> > 
> >     On 09/02/2016 02:00 PM, Sandro Bonazzola wrote:
> >     >
> >     >
> >     > On Fri, Sep 2, 2016 at 1:38 PM, Yaniv Kaul <ykaul at redhat.com
> >     > <mailto:ykaul at redhat.com>
> >     > <mailto:ykaul at redhat.com <mailto:ykaul at redhat.com>>> wrote:
> >     >
> >     >     Log:
> >     >
> >     >     2016-09-02 07:26:52::ERROR::hypervisors::197::root:: Failure
> >     >     fetching information about hypervisors from API.
> >     >     Error (ValueError): legacy is not a valid RngSource
> >     >     2016-09-02 07:26:52::ERROR::__main__::1147::root::
> >     >     _get_hypervisors_from_api: legacy is not a valid RngSource
> >     >     2016-09-02 07:26:52::INFO::__main__::1424::root:: Gathering oVirt
> >     >     Engine information...
> >     >     2016-09-02 07:27:03::INFO::__main__::1398::root:: Gathering
> >     >     PostgreSQL the oVirt Engine database and log files from
> >     >     localhost...
> >     >     2016-09-02 07:27:05::INFO::__main__::1859::root:: No hypervisors
> >     >     were selected, therefore no hypervisor data will be collected.
> >     >     2016-09-02 07:27:08::INFO::__main__::1862::root:: Log files have
> >     >     been collected and placed in
> >     >     /tmp/sosreport-LogCollector-20160902072705.tar.xz.
> >     >
> >     >
> >     >     I am not familiar with this error - first time I've seen it,
> >     >     while
> >     >     running on Master, on Lago (with a patch I'm working on - that
> >     >     adds
> >     >     DNS and IPv6 support to Lago, nothing more - doesn't seem
> >     >     relevant).
> >     >     Any idea?
> >     >
> >     >
> >     >
> >     > Probably a change in the API.
> >     > Rafael can you reproduce?
> >     >
> >     > Juan, Ondra, any insight?
> >     >
> > 
> >     That means that the API is returning "legacy" as the value for
> >     something
> >     that is declared of type "RngSource", and the valid values for that are
> >     "random" and "hwrng". But the API can't return that, at least not
> >     version 4 of the API. Are you using engine 4? Can you share the output
> >     of the clusters resource?
> > 
> >       https://.../ovirt-engine/api/clusters
> > 
> > 
> > Lago is still using the v3 API.
> > I'm not sure what the log collector is using. I assume[1] it's v4.
> > 
> > Y.
> > [1]
> > https://github.com/oVirt/ovirt-log-collector/blob/dfaf35675bee3da1c53b4fd74b816efafa13d070/src/helper/hypervisors.py#L8
> > 
> 
> But the version of the engine should be 4, if I understand correctly,
> and SDK 4 should work correctly with that version of the engine. In
> addition, if it the engine is version 3 the SDK connection should have
> failed much earlier, during authentication.

Hi Juan,

I managed to reproduce this with "basic_suite_master" test from ovirt-system-tests, that uses everything from master branch. This means that engine version is 4, not 3. It seems to be an issue with engine/sdk, as the value is actually stored on engine as "legacy". Here you can find the xml output of the endpoints you asked: https://gist.github.com/rafaelmartins/60c21e158a9e6453c14a673f77693d61

Please let me know if you need anything else.

Thanks,
Rafael


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> >     >
> >     >
> >     > --
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