[ovirt-devel] Failure in log collector on master: Failure fetching information about hypervisors from API. Error (ValueError): legacy is not a valid RngSource
Yaniv Kaul
ykaul at redhat.com
Tue Sep 6 09:49:23 UTC 2016
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.
On Tue, Sep 6, 2016 at 11:37 AM, Eyal Edri <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>
> wrote:
>
>> On 09/05/2016 08:43 PM, Rafael Martins wrote:
>> > ----- 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/dfaf35675b
>> ee3da1c53b4fd74b816efafa13d070/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/rafael
>> martins/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>
>> >>> >
>> >>> <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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>> >>> >
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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
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>
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