openstack/deb-heat
Code Issues Proposed changes

Corrected max secs for concurrent trans retries

Browse Source 
This was most likely meant as a max 2s delay here, not a max 2ms
delay.

Also includes a related change: when retries for metadata updates are
attempted, make sure we do not have a stale value of the atomic_key
(otherwise we'll just inevitably hit the ConcurrentTransaction issue).

Co-Authored-By: Crag Wolfe <cwolfe@redhat.com>
Partial-Bug: #1651768
Change-Id: Ie56e0e4ff93633db1f4752859d2b2a9506922911
This commit is contained in:
Zane Bitter 2016-05-26 13:40:53 -04:00 committed by Crag Wolfe
parent 5529700be2
commit e37d9fab8f
3 changed files with 25 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
heat/engine/service_software_config.py
View File

@ -100,7 +100,10 @@ class SoftwareConfigService(object):
def _push_metadata_software_deployments(
self, cnxt, server_id, stack_user_project_id):
rs = db_api.resource_get_by_physical_resource_id(cnxt, server_id)
if not rs or rs.action == resource.Resource.DELETE:
if not rs:
return
cnxt.session.refresh(rs)
if rs.action == resource.Resource.DELETE:
return
deployments = self.metadata_software_deployments(cnxt, server_id)
md = rs.rsrc_metadata or {}

2
heat/objects/resource.py
View File

@ -41,7 +41,7 @@ LOG = logging.getLogger(__name__)
def retry_on_conflict(func):
wrapper = tenacity.retry(
stop=tenacity.stop_after_attempt(11),
wait=tenacity.wait_random(max=0.002),
wait=tenacity.wait_random(max=2),
retry=tenacity.retry_if_exception_type(
exception.ConcurrentTransaction),
reraise=True)

35
heat/tests/engine/service/test_software_config.py
View File

@ -649,8 +649,9 @@ class SoftwareConfigServiceTest(common.HeatTestCase):
'deployments': {'deploy': 'this'}
}
self.engine.software_config._push_metadata_software_deployments(
self.ctx, '1234', None)
with mock.patch.object(self.ctx.session, 'refresh'):
self.engine.software_config._push_metadata_software_deployments(
self.ctx, '1234', None)
res_upd.assert_called_once_with(
self.ctx, '1234', {'rsrc_metadata': result_metadata}, 1)
put.side_effect = Exception('Unexpected requests.put')
@ -674,12 +675,14 @@ class SoftwareConfigServiceTest(common.HeatTestCase):
deployments = {'deploy': 'this'}
md_sd.return_value = deployments
self.assertRaises(
exception.ConcurrentTransaction,
self.engine.software_config._push_metadata_software_deployments,
self.ctx,
'1234',
None)
with mock.patch.object(self.ctx.session, 'refresh'):
f = self.engine.software_config._push_metadata_software_deployments
self.assertRaises(
exception.ConcurrentTransaction,
f,
self.ctx,
'1234',
None)
# retry ten times then the final failure
self.assertEqual(11, res_upd.call_count)
put.assert_not_called()
@ -709,9 +712,9 @@ class SoftwareConfigServiceTest(common.HeatTestCase):
'original': 'metadata',
'deployments': {'deploy': 'this'}
}
self.engine.software_config._push_metadata_software_deployments(
self.ctx, '1234', None)
with mock.patch.object(self.ctx.session, 'refresh'):
self.engine.software_config._push_metadata_software_deployments(
self.ctx, '1234', None)
res_upd.assert_called_once_with(
self.ctx, '1234', {'rsrc_metadata': result_metadata}, 1)
@ -748,8 +751,9 @@ class SoftwareConfigServiceTest(common.HeatTestCase):
'deployments': {'deploy': 'this'}
}
self.engine.software_config._push_metadata_software_deployments(
self.ctx, '1234', 'project1')
with mock.patch.object(self.ctx.session, 'refresh'):
self.engine.software_config._push_metadata_software_deployments(
self.ctx, '1234', 'project1')
res_upd.assert_called_once_with(
self.ctx, '1234', {'rsrc_metadata': result_metadata}, 1)
@ -917,8 +921,9 @@ class SoftwareConfigServiceTest(common.HeatTestCase):
zaqar_client.queue.return_value = queue
queue.pop.return_value = [mock.Mock(body='ok')]
deployment = self._create_software_deployment(
status='IN_PROGRESS', config_id=config['id'])
with mock.patch.object(self.ctx.session, 'refresh'):
deployment = self._create_software_deployment(
status='IN_PROGRESS', config_id=config['id'])
deployment_id = deployment['id']
self.assertEqual(