Open Stack

Thanks Gary,

Another higher level question here is how do we make sure that OSLO changes
like this are better communicated to impacted core projects.

Adding Mark (and the openstack-dev list) to let him comment more broadly on
this.

Dan


On Sun, Mar 17, 2013 at 8:37 AM, Salvatore Orlando <sorlando at nicira.com>wrote:

> Thanks Gary,
>
> I think your analysis and your conclusions make sense.
> I noticed the DB API change when we were trying to debug this problem, but
> the change seemed a bit too large for RC1.
> It makes sense now doing it in Havana, and perhabs backporting to
> stable/grizzly.
>
> Thanks again for tackling this issue.
> Salvatore
> Il giorno 17/mar/2013 16:26, "Gary Kotton" <gkotton at redhat.com> ha
> scritto:
>
> Hi,
>> Over the last few days I have worked on a number of problems when is
>> sql_dbpool_enable is set a True. After a ton of debugging today I referred
>> to the Nova implementation (where it was originally taken from) and
>> discovered the following:
>> https://github.com/openstack/**oslo-incubator/commit/**
>> 02c12aade7a0c28c66cb45b54786c9**0c0ae8fb09<https://github.com/openstack/oslo-incubator/commit/02c12aade7a0c28c66cb45b54786c90c0ae8fb09>
>> The problems that I was looking at were as follows:
>> 1. When starting with a clean database and the various agents are already
>> running, multiple agent entries are created in the database
>> 2. Once the entries are sorted an update of a agent entry causes an
>> exception [1]
>> I think that either we should drop the Grizzly support or mark it as
>> experimental. Any ideas or comments?
>> I the coming days I will try and update our H version to make use of the
>> common database interface.
>> Thanks
>> Gary
>>
>> 1.
>> 2013-03-17 11:24:27    ERROR [quantum.openstack.common.rpc.**amqp]
>> Exception during message handling
>> Traceback (most recent call last):
>>   File "/opt/stack/quantum/quantum/**openstack/common/rpc/amqp.py", line
>> 430, in _process_data
>>     rval = self.proxy.dispatch(ctxt, version, method, **args)
>>   File "/opt/stack/quantum/quantum/**common/rpc.py", line 43, in dispatch
>>     quantum_ctxt, version, method, **kwargs)
>>   File "/opt/stack/quantum/quantum/**openstack/common/rpc/**dispatcher.py",
>> line 133, in dispatch
>>     return getattr(proxyobj, method)(ctxt, **kwargs)
>>   File "/opt/stack/quantum/quantum/**db/agents_db.py", line 167, in
>> report_state
>>     plugin.create_or_update_agent(**context, agent_state)
>>   File "/opt/stack/quantum/quantum/**db/agents_db.py", line 156, in
>> create_or_update_agent
>>     context.session.add(agent_db)
>>   File "/usr/local/lib/python2.7/**dist-packages/sqlalchemy/orm/**session.py",
>> line 452, in __exit__
>>     raise
>> TypeError: exceptions must be old-style classes or derived from
>> BaseException, not NoneType
>>
>>
>> --
>> Mailing list: https://launchpad.net/~**quantum-core<https://launchpad.net/~quantum-core>
>> Post to     : quantum-core at lists.launchpad.**net<quantum-core at lists.launchpad.net>
>> Unsubscribe : https://launchpad.net/~**quantum-core<https://launchpad.net/~quantum-core>
>> More help   : https://help.launchpad.net/**ListHelp<https://help.launchpad.net/ListHelp>
>>
>
> --
> Mailing list: https://launchpad.net/~quantum-core
> Post to     : quantum-core at lists.launchpad.net
> Unsubscribe : https://launchpad.net/~quantum-core
> More help   : https://help.launchpad.net/ListHelp
>
>


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dan Wendlandt
Nicira, Inc: www.nicira.com
twitter: danwendlandt
~~~~~~~~~~~~~~~~~~~~~~~~~~~
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20130318/fc1b6323/attachment.html>