[ovirt-devel] Failure in log collector on master: Failure fetching information about hypervisors from API. Error (ValueError): legacy is not a valid RngSource
Juan Hernández
jhernand at redhat.com
Tue Sep 6 10:04:08 UTC 2016
On 09/06/2016 11:49 AM, Yaniv Kaul wrote:
> Interesting that we don't see it on 4.0, saw it's a regression
> introduced somewhere, or a test case we have not seen before?
> Y.
>
It is a regression that was introduced recently in the master branch of
version 4 of the SDK. The patch that caused the issue wasn't backported
to the 4.0 branch of the SDK, thus you don't see it in 4.0.
> On Tue, Sep 6, 2016 at 11:37 AM, Eyal Edri <eedri at redhat.com
> <mailto:eedri at redhat.com>> wrote:
>
> Glad to hear you found the issue!
> Let me know when it's merged so we can publish it to the nightlies
> and rerun the tests.
>
> On Tue, Sep 6, 2016 at 11:34 AM, Juan Hernández <jhernand at redhat.com
> <mailto:jhernand at redhat.com>> wrote:
>
> On 09/05/2016 08:43 PM, Rafael Martins wrote:
> > ----- Original Message -----
> >> From: "Juan Hernández" <jhernand at redhat.com
> <mailto:jhernand at redhat.com>>
> >> To: "Yaniv Kaul" <ykaul at redhat.com <mailto:ykaul at redhat.com>>
> >> Cc: "Sandro Bonazzola" <sbonazzo at redhat.com
> <mailto:sbonazzo at redhat.com>>, "Rafael Martins"
> <rmartins at redhat.com <mailto:rmartins at redhat.com>>, "Ondra Machacek"
> >> <omachace at redhat.com <mailto:omachace at redhat.com>>, "devel"
> <devel at ovirt.org <mailto: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>
> >>> <mailto: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>>
> >>> > <mailto: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
> <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
> <https://gist.github.com/rafaelmartins/60c21e158a9e6453c14a673f77693d61>
> >
> > Please let me know if you need anything else.
> >
> > Thanks,
> > Rafael
> >
>
> This is a bug in the Python SDK. Should be fixed by the
> following patch:
>
> Fix reading of lists of elements
> https://gerrit.ovirt.org/63385
>
> >
> >>>
> >>>
> >>> >
> >>> >
> >>> >
> >>> >
> >>> > Y.
> >>> >
> >>> >
> >>> >
> >>> >
> >>> > --
> >>> > Sandro Bonazzola
> >>> > Better technology. Faster innovation. Powered by community
> >>> > collaboration.
> >>> > See how it works at redhat.com <http://redhat.com>
> <http://redhat.com>
> >>> > <http://redhat.com>
> >>> >
> >>>
> <https://www.redhat.com/it/about/events/red-hat-open-source-day-2016
> <https://www.redhat.com/it/about/events/red-hat-open-source-day-2016>
> >>>
> <https://www.redhat.com/it/about/events/red-hat-open-source-day-2016
> <https://www.redhat.com/it/about/events/red-hat-open-source-day-2016>>>
> >>> >
> >>> >
> >>> > _______________________________________________
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> >>> > Devel at ovirt.org <mailto:Devel at ovirt.org>
> <mailto:Devel at ovirt.org <mailto:Devel at ovirt.org>>
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> >>> >
> >>>
> >>>
> >>> --
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> >>>
> >>
> >>
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>
> --
> Eyal Edri
> Associate Manager
> RHV DevOps
> EMEA ENG Virtualization R&D
> Red Hat Israel
>
> phone: +972-9-7692018 <tel:%2B972-9-7692018>
> irc: eedri (on #tlv #rhev-dev #rhev-integ)
>
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