openstack
/
nova
Code Issues Proposed changes

test server evacuation with placement 

This patch test evacuation between two Pike compute hosts and
checks the resource state in the placement API.

Related-Bug: #1709902

Change-Id: Idedb8a911a2ab0c096f4c9f61c5db362b08758ba
This commit is contained in:
Balazs Gibizer 2017-08-10 16:08:23 +02:00
parent 4cd6a3a1b4
commit 96938426e6
1 changed files with 73 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

73
nova/tests/functional/test_servers.py
View File

@ -1592,3 +1592,76 @@ class ServerMovingTests(test.TestCase, integrated_helpers.InstanceHelperMixin):
self._delete_and_check_allocations(
server, source_rp_uuid, dest_rp_uuid)
def test_evacuate(self):
source_hostname = self.compute1.host
dest_hostname = self.compute2.host
server = self._boot_and_check_allocations(
self.flavor1, source_hostname)
source_compute_id = self.admin_api.get_services(
host=source_hostname, binary='nova-compute')[0]['id']
self.compute1.stop()
# force it down to avoid waiting for the service group to time out
self.admin_api.put_service(
source_compute_id, {'forced_down': 'true'})
# evacuate the server
post = {'evacuate': {}}
self.api.post_server_action(
server['id'], post)
server = self._wait_for_state_change(self.api, server, 'ACTIVE')
self.assertEqual(dest_hostname, server['OS-EXT-SRV-ATTR:host'])
# Expect to have allocation and usages on both computes as the
# source compute is still down
source_rp_uuid = self._get_provider_uuid_by_host(source_hostname)
dest_rp_uuid = self._get_provider_uuid_by_host(dest_hostname)
source_usages = self._get_provider_usages(source_rp_uuid)
self.assertFlavorMatchesAllocation(self.flavor1, source_usages)
dest_usages = self._get_provider_usages(dest_rp_uuid)
self.assertFlavorMatchesAllocation(self.flavor1, dest_usages)
allocations = self._get_allocations_by_server_uuid(server['id'])
self.assertEqual(2, len(allocations))
source_allocation = allocations[source_rp_uuid]['resources']
self.assertFlavorMatchesAllocation(self.flavor1, source_allocation)
dest_allocation = allocations[dest_rp_uuid]['resources']
self.assertFlavorMatchesAllocation(self.flavor1, dest_allocation)
# start up the source compute
self.compute1.start()
self.admin_api.put_service(
source_compute_id, {'forced_down': 'false'})
source_usages = self._get_provider_usages(source_rp_uuid)
# NOTE(gibi): this is bug 1709902 as the source compute does not clean
# up the allocation during init_host
self.assertFlavorMatchesAllocation(self.flavor1, source_usages)
# after fixing bug 1709902 the following is expected
# self.assertEqual({'VCPU': 0,
# 'MEMORY_MB': 0,
# 'DISK_GB': 0},
# source_usages)
dest_usages = self._get_provider_usages(dest_rp_uuid)
self.assertFlavorMatchesAllocation(self.flavor1, dest_usages)
allocations = self._get_allocations_by_server_uuid(server['id'])
# NOTE(gibi): this is bug 1709902 as the source compute does not clean
# up the allocation during init_host
self.assertEqual(2, len(allocations))
source_allocation = allocations[source_rp_uuid]['resources']
self.assertFlavorMatchesAllocation(self.flavor1, source_allocation)
# after fixing bug 1709902 the following is expected
# self.assertEqual(1, len(allocations))
dest_allocation = allocations[dest_rp_uuid]['resources']
self.assertFlavorMatchesAllocation(self.flavor1, dest_allocation)
self._delete_and_check_allocations(
server, source_rp_uuid, dest_rp_uuid)