[OVS] Make QoS OVS agent deletion operations more resilient
When a Port is deleted, the QoS extension will reset any rule (QoS and Queue registers) applied on this port or will reset the related Interface policing parameters. If the Port and the related Interface are deleted during the QoS extension operation, those commands will fail. This patch makes those operations more resiliant by not checking the errors when writing on the Port or the Interface register. Change-Id: I2cc4cdf5be25fab6adbc64acabb3fffebb693fa6 Closes-Bug: #1884512
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@ -715,8 +715,8 @@ class OVSBridge(BaseOVS):
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self.set_controller_field('inactivity_probe', interval * 1000)
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def _set_egress_bw_limit_for_port(self, port_name, max_kbps,
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max_burst_kbps):
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with self.ovsdb.transaction(check_error=True) as txn:
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max_burst_kbps, check_error=True):
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with self.ovsdb.transaction(check_error=check_error) as txn:
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txn.add(self.ovsdb.db_set('Interface', port_name,
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('ingress_policing_rate', max_kbps)))
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txn.add(self.ovsdb.db_set('Interface', port_name,
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@ -743,8 +743,7 @@ class OVSBridge(BaseOVS):
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def delete_egress_bw_limit_for_port(self, port_name):
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if not self.port_exists(port_name):
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return
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self._set_egress_bw_limit_for_port(
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port_name, 0, 0)
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self._set_egress_bw_limit_for_port(port_name, 0, 0, check_error=False)
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def find_qos(self, port_name):
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qos = self.ovsdb.db_find(
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@ -915,12 +914,11 @@ class OVSBridge(BaseOVS):
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return max_kbps, max_burst_kbit
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def delete_ingress_bw_limit_for_port(self, port_name):
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self.ovsdb.db_clear('Port', port_name,
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'qos').execute(check_error=False)
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qos = self.find_qos(port_name)
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queue = self.find_queue(port_name, QOS_DEFAULT_QUEUE)
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does_port_exist = self.port_exists(port_name)
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with self.ovsdb.transaction(check_error=True) as txn:
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if does_port_exist:
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txn.add(self.ovsdb.db_clear("Port", port_name, 'qos'))
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if qos:
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txn.add(self.ovsdb.db_destroy('QoS', qos['_uuid']))
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if queue:
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@ -471,7 +471,8 @@ class OVS_Lib_Test(base.BaseTestCase):
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) as port_exists_mock:
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self.br.delete_egress_bw_limit_for_port("test_port")
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port_exists_mock.assert_called_once_with("test_port")
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set_egress_mock.assert_called_once_with("test_port", 0, 0)
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set_egress_mock.assert_called_once_with("test_port", 0, 0,
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check_error=False)
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def test_delete_egress_bw_limit_for_port_port_not_exists(self):
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with mock.patch.object(
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