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

[nicolas at devels.es]

Hi Ravi,

Could you please tell me what's the right way to apply this patch on an 
already working oVirt instance? I already have applied some patches on 
*.py files, but it seems the *.java files are not there.

Thanks!

El 2017-03-22 16:06, Ravi Nori escribió:
> 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 [1]
>> 
>> 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
>> [2]
>> 
>> 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 [3]
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> 
> 
> 
> Links:
> ------
> [1] https://bugzilla.redhat.com/1434605
> [2]
> https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/vm_backup.py#L112-L131
> [3] https://bugzilla.redhat.com/1434830
> [4] http://lists.ovirt.org/mailman/listinfo/users