check Snapshot class , that is the one passed as snapshot_ref https://github.com/openstack/cinder/blob/stable/grizzly/cinder/db/sqlalchemy/models.py
On Wed, Oct 16, 2013 at 11:02 AM, Swapnil Kulkarni < swapnilkulkarni2...@gmail.com> wrote: > Correcting the typo, snapshot_ref['volume_name'] in your case. > > > On Wed, Oct 16, 2013 at 10:59 AM, Swapnil Kulkarni < > swapnilkulkarni2...@gmail.com> wrote: > >> I think snapshot[volume_name] is what you are looking for, pls see below >> link for ref. >> >> >> https://github.com/openstack/cinder/blob/stable/grizzly/cinder/volume/drivers/lvm.py#L233 >> >> Best Regards, >> Swapnil >> >> On Wed, Oct 16, 2013 at 10:57 AM, Dinakar Gorti Maruti < >> dinakar...@cloudbyte.co> wrote: >> >>> display_name parameter of volume >>> >>> >>> On Wed, Oct 16, 2013 at 10:55 AM, Swapnil Kulkarni < >>> swapnilkulkarni2...@gmail.com> wrote: >>> >>>> What exact parameters are you looking for? >>>> >>>> >>>> >>>> On Wed, Oct 16, 2013 at 10:48 AM, Dinakar Gorti Maruti < >>>> dinakar...@cloudbyte.co> wrote: >>>> >>>>> Hi Swapnil, >>>>> >>>>> I had tried it before , it is returning a string >>>>> "volume" followed by volume id >>>>> >>>>> Thanks >>>>> Dinakar >>>>> >>>>> >>>>> On Wed, Oct 16, 2013 at 10:31 AM, Swapnil Kulkarni < >>>>> swapnilkulkarni2...@gmail.com> wrote: >>>>> >>>>>> Hi DInakar, >>>>>> >>>>>> Please use volume_name, volume_size,etc. These are volume related >>>>>> parameters frequently used in snapshots. You can always do *dir* to >>>>>> get any specific values you need. >>>>>> >>>>>> Best Regards, >>>>>> Swapnil >>>>>> >>>>>> >>>>>> On Wed, Oct 16, 2013 at 10:11 AM, Dinakar Gorti Maruti < >>>>>> dinakar...@cloudbyte.co> wrote: >>>>>> >>>>>>> hi, >>>>>>> I am implementing a driver for cinder services and I am stuck >>>>>>> with a problem in creation of snapshot , I have a need to fetch the >>>>>>> volume >>>>>>> details in snapshot creation. >>>>>>> I am using Openstack-Grizzly >>>>>>> >>>>>>> I am trying to use this line of code >>>>>>> >>>>>>> def create_snapshot(self, snapshot_ref): >>>>>>> .......... >>>>>>> >>>>>>> volume = snapshot_ref['volume'] >>>>>>> >>>>>>> ........... >>>>>>> >>>>>>> >>>>>>> Error : >>>>>>> >>>>>>> Traceback (most recent call last): >>>>>>> File >>>>>>> "/usr/lib/python2.6/site-packages/cinder/openstack/common/rpc/amqp.py", >>>>>>> line 430, in _process_data >>>>>>> rval = self.proxy.dispatch(ctxt, version, method, **args) >>>>>>> File >>>>>>> "/usr/lib/python2.6/site-packages/cinder/openstack/common/rpc/dispatcher.py", >>>>>>> line 133, in dispatch >>>>>>> return getattr(proxyobj, method)(ctxt, **kwargs) >>>>>>> File "/usr/lib/python2.6/site-packages/cinder/volume/manager.py", >>>>>>> line 564, in create_snapshot >>>>>>> {'status': 'error'}) >>>>>>> File "/usr/lib64/python2.6/contextlib.py", line 23, in __exit__ >>>>>>> self.gen.next() >>>>>>> File "/usr/lib/python2.6/site-packages/cinder/volume/manager.py", >>>>>>> line 554, in create_snapshot >>>>>>> model_update = >>>>>>> self.driver.create_snapshot(snapshot_ref,volume_name) >>>>>>> File >>>>>>> "/usr/lib/python2.6/site-packages/cinder/volume/drivers/cloudbyte.py", >>>>>>> line >>>>>>> 195, in create_snapshot >>>>>>> LOG.debug(_("phani volume object in snapshot : >>>>>>> %s"),snapshot_ref['volume']) >>>>>>> File >>>>>>> "/usr/lib/python2.6/site-packages/cinder/db/sqlalchemy/models.py", line >>>>>>> 74, >>>>>>> in __getitem__ >>>>>>> return getattr(self, key) >>>>>>> File >>>>>>> "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.8-py2.6-linux-x86_64.egg/sqlalchemy/orm/attributes.py", >>>>>>> line 168, in __get__ >>>>>>> return self.impl.get(instance_state(instance),dict_) >>>>>>> File >>>>>>> "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.8-py2.6-linux-x86_64.egg/sqlalchemy/orm/attributes.py", >>>>>>> line 453, in get >>>>>>> value = self.callable_(state, passive) >>>>>>> File >>>>>>> "/usr/lib64/python2.6/site-packages/SQLAlchemy-0.7.8-py2.6-linux-x86_64.egg/sqlalchemy/orm/strategies.py", >>>>>>> line 481, in _load_for_state >>>>>>> (mapperutil.state_str(state), self.key) >>>>>>> >>>>>>> >>>>>>> DetachedInstanceError: Parent instance <Snapshot at 0x30a0cd0> is >>>>>>> not bound to a Session; lazy load operation of attribute 'volume' cannot >>>>>>> proceed >>>>>>> >>>>>>> hoping for a solution >>>>>>> >>>>>>> Thanks >>>>>>> Dinakar >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Mailing list: >>>>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>>>>> Post to : openst...@lists.openstack.org >>>>>>> Unsubscribe : >>>>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >
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