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

[Juan Hernández]

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