NetApp: can't create a snapshot

[Sam Morrison]

Get the following error when trying to create a snapshot:

2012-12-14 09:02:27 DEBUG cinder.volume.manager [req-2e80ed8a-2c81-49e6-ad61-0ca5b4c34307 d9646718471b46aeb5fd94c702336ca9 0bdf024c921848c4b74d9e69af9edf08] snapshot snapshot-3576a7cb-8673-4cdd-897a-6d506ebf38d9: creating create_snapshot /usr/lib/python2.7/dist-packages/cinder/volume/manager.py:234
2012-12-14 09:02:28 9455 ERROR cinder.openstack.common.rpc.amqp [-] Exception during message handling
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp Traceback (most recent call last):
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/dist-packages/cinder/openstack/common/rpc/amqp.py", line 276, in _process_data
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp rval = self.proxy.dispatch(ctxt, version, method, **args)
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/dist-packages/cinder/openstack/common/rpc/dispatcher.py", line 145, in dispatch
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp return getattr(proxyobj, method)(ctxt, **kwargs)
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 244, in create_snapshot
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp {'status': 'error'})
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp self.gen.next()
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 235, in create_snapshot
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp model_update = self.driver.create_snapshot(snapshot_ref)
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/dist-packages/cinder/volume/netapp.py", line 942, in create_snapshot
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp self._clone_lun(lun.HostId, src_path, dest_path, True)
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/dist-packages/cinder/volume/netapp.py", line 867, in _clone_lun
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp while not self._is_clone_done(host_id, clone_op_id, volume_uuid):
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp File "/usr/lib/python2.7/dist-packages/cinder/volume/netapp.py", line 837, in _is_clone_done
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp status = response.Results['status']
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp TypeError: string indices must be integers
2012-12-14 09:02:28 9455 TRACE cinder.openstack.common.rpc.amqp

We're using ontap 8.1.1 and oncommand 5.1

[Sam Morrison (sorrison)]

Note: I'm working with the NetApp people on this, hope to have a solution soon.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/18528

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/18528
Committed: http://github.com/openstack/cinder/commit/035cd28ed36c4ec34c20e7cedf0815af72e3f2c0
Submitter: Jenkins
Branch: master

commit 035cd28ed36c4ec34c20e7cedf0815af72e3f2c0
Author: Ben Swartzlander <email address hidden>
Date: Fri Dec 21 00:24:46 2012 -0500

    Make the NetAppISCSIDriver._is_clone_done() method able to handle
    empty responses. Add unit tests to exercise this case.

    bug 1090168

    Change-Id: Ia51a73b8ebead7a0f3be9202794ca8549bdf3e5b