Use deepcopy when process filters in db api
In db API when we process filters, we didn't use deepcopy. In cases of "tags" and "not-tags" we used pop to get the first tag, filtered out results, and then joined with other tags for later filtering. When we did pop(), the original value was deleted, the key "tags"/"not-tags" remains. In the cell scenario, both single cell(we will query cell0 and the other cell) and multicell, as we have to query all the cells in a loop and the tags list in the filter will keep popping, this will lead to either a HTTP 500 error(popping from an empty list) or incorrect result(when number of tags in the list is larger than cell number, no HTTP 500 will show, but the filter results for each cell will be different as each loop will pop one tag). closes-bug: #1682693 Change-Id: Ia2738dd0c7d1842b68c83d0a9e75e26b2f8d492a
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@ -2147,7 +2147,7 @@ def instance_get_all_by_filters_sort(context, filters, limit=None, marker=None,
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# Make a copy of the filters dictionary to use going forward, as we'll
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# Make a copy of the filters dictionary to use going forward, as we'll
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# be modifying it and we shouldn't affect the caller's use of it.
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# be modifying it and we shouldn't affect the caller's use of it.
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filters = filters.copy()
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filters = copy.deepcopy(filters)
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if 'changes-since' in filters:
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if 'changes-since' in filters:
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changes_since = timeutils.normalize_time(filters['changes-since'])
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changes_since = timeutils.normalize_time(filters['changes-since'])
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@ -14,7 +14,6 @@
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from nova import test
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from nova import test
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from nova.tests import fixtures as nova_fixtures
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from nova.tests import fixtures as nova_fixtures
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from nova.tests.functional.api import client as api_client
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from nova.tests.functional import integrated_helpers
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from nova.tests.functional import integrated_helpers
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from nova.tests.unit.image import fake as image_fake
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from nova.tests.unit.image import fake as image_fake
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from nova.tests.unit import policy_fixture
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from nova.tests.unit import policy_fixture
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@ -90,9 +89,5 @@ class ServerTagsFilteringTest(test.TestCase,
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self.assertEqual(['bar', 'foo'], sorted(server['tags']))
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self.assertEqual(['bar', 'foo'], sorted(server['tags']))
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# query for the shared tag and we should get two servers back
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# query for the shared tag and we should get two servers back
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# FIXME(mriedem): This causes a 500 error until bug 1682693 is fixed.
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servers = self.api.get_servers(search_opts=dict(tags='foo'))
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ex = self.assertRaises(api_client.OpenStackApiException,
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self.assertEqual(2, len(servers))
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self.api.get_servers,
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search_opts=dict(tags='foo'))
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self.assertEqual(500, ex.response.status_code)
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self.assertIn('IndexError', ex.message)
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@ -10348,6 +10348,32 @@ class TestInstanceTagsFiltering(test.TestCase):
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self._assertEqualInstanceUUIDs([uuids[0], uuids[1], uuids[3], uuids[4],
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self._assertEqualInstanceUUIDs([uuids[0], uuids[1], uuids[3], uuids[4],
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uuids[6], uuids[7]], result)
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uuids[6], uuids[7]], result)
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def test_instance_get_all_by_filters_not_tags_multiple_cells(self):
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"""Test added for bug 1682693.
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In cells v2 scenario, db.instance_get_all_by_filters() will
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be called multiple times to search across all cells. This
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test tests that filters for all cells remain the same in the
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loop.
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"""
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uuids = self._create_instances(8)
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db.instance_tag_set(self.ctxt, uuids[0], [u't1'])
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db.instance_tag_set(self.ctxt, uuids[1], [u't2'])
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db.instance_tag_set(self.ctxt, uuids[2], [u't1', u't2'])
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db.instance_tag_set(self.ctxt, uuids[3], [u't2', u't3'])
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db.instance_tag_set(self.ctxt, uuids[4], [u't3'])
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db.instance_tag_set(self.ctxt, uuids[5], [u't1', u't2', u't3'])
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db.instance_tag_set(self.ctxt, uuids[6], [u't3', u't4'])
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db.instance_tag_set(self.ctxt, uuids[7], [])
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filters = {'not-tags': [u't1', u't2']}
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result = db.instance_get_all_by_filters(self.ctxt, filters)
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self._assertEqualInstanceUUIDs([uuids[0], uuids[1], uuids[3], uuids[4],
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uuids[6], uuids[7]], result)
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def test_instance_get_all_by_filters_not_tags_any(self):
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def test_instance_get_all_by_filters_not_tags_any(self):
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uuids = self._create_instances(8)
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uuids = self._create_instances(8)
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