[ovirt-users] Python-SDK: ovirtsdk4.Connection object autologout?

[Ravi Nori]

Hi Nicolás,

There has been some changes to how a session is refreshed after 4.0. So
this is a BZ and is being tracked by BZ 1434605.

Will post a patch to fix this. Thanks for reporting the issue.

Ravi


On Wed, Mar 22, 2017 at 9:10 AM, <nicolas at devels.es> wrote:

> Hi Juan,
>
> I confirm this was working with 4.0.6 (but the same SDK package). The
> script is relatively new but I'm 100% sure it has been in execution for
> several weeks, in contrast to current version where after 5-6 iterations
> the exception starts showing up.
>
> I've voted for the bug and added myself as CC.
>
> Thank you.
>
> Regards,
>
> Nicolás
>
>
> El 2017-03-22 12:58, Juan Hernández escribió:
>
>> On 03/22/2017 01:50 PM, Juan Hernández wrote:
>>
>>> On 03/22/2017 01:10 PM, nicolas at devels.es wrote:
>>>
>>>> Hi,
>>>>
>>>> We've recently upgraded from oVirt 4.0.x to 4.1.0 and it seems that the
>>>> behavior of a script we wrote in Python-SDK has changed slightly. We
>>>> have a script that needs to be executed forever (daemon mode). This
>>>> daemon creates an ovirtsdk4.Connection object and uses the same
>>>> Connection object all the time.
>>>>
>>>> conn = sdk.Connection(
>>>>   url=URI,
>>>>   username=USERNAME,
>>>>   password=PASSWORD,
>>>>   ca_file=CAFILE
>>>> )
>>>>
>>>> Between iterations we have ~5 minutes delays which we accomplish with a
>>>> time.sleep(...) call.
>>>>
>>>> After some of these iterations (5 or 6), when trying to perform an
>>>> operation on the Connection object (in this case, listing all SDs):
>>>>
>>>>     try:
>>>>         sys_serv = conn.system_service()
>>>>         sd_serv = sys_serv.storage_domains_service()
>>>>         storages = sd_serv.list(search=sd_search_query)
>>>>     except Error, e:
>>>>         log('ERR: Error getting storage domains: %s' % (e))
>>>>
>>>> We start getting exceptions (i.e., the sd_serv.list() call throwing an
>>>> Error exception) with this message:
>>>>
>>>>     ERR: Error getting storage domains: HTTP response code is 401.
>>>>
>>>> I believe this has something to do with the Connection object expiring
>>>> (even if it's not idle more than 5 minutes at any time). Is there a way
>>>> to "refresh" the Connection object so it doesn't auto-logout (assuming
>>>> this is the actual problem)?
>>>>
>>>> As I said, this started happening as of oVirt 4.1.0.
>>>> ovirt-engine-sdk-python version is 4.1.1.
>>>>
>>>> Any ideas?
>>>>
>>>>
>>> This sound like this bug, opened yesterday:
>>>
>>>   SSO token used for the API expires when running only queries
>>>   https://bugzilla.redhat.com/1434605
>>>
>>> But I thought the same happened in 4.0. Can you confirm that you don't
>>> see this problem in 4.0?
>>>
>>> Open possible workaround is to force a refresh of the backend session
>>> sending an external event, like in this example:
>>>
>>>
>>> https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/
>>> examples/vm_backup.py#L112-L131
>>>
>>> I also think that we need to modify the SDKs so that they detect expired
>>> SSO tokens and renew them automatically. I will open another bug for
>>> that.
>>>
>>>
>> Here is the bug for adding automatic SSO token renew to the SDK, in case
>> you want to follow/vote it:
>>
>>   Implement automatic SSO token renew
>>   https://bugzilla.redhat.com/1434830
>>
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