acbabaa3db
This adds decorators to ML2/db_base_plugin_v2 and the L3 DB modules to make L2 and L3 resource operations retriable at the plugin level. Retrying the L2 operations in particular at this level should go a long way to improving the reliability of complex operations that require L2 resources in the face of deadlocks under high concurrency. Partial-Bug: #1612798 Partial-Bug: #1596075 Change-Id: I3c9437f7ecdd5ebb188b622144b7bd7bed74231d
48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Exceptions used by ML2."""
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from neutron_lib import exceptions
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from neutron._i18n import _
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class MechanismDriverError(exceptions.MultipleExceptions):
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"""Mechanism driver call failed."""
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def __init__(self, method, errors=None):
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# The message is not used by api, because api will unwrap
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# MultipleExceptions and return inner exceptions. Keep it
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# for backward-compatibility, in case other code use it.
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self.message = _("%s failed.") % method
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super(MechanismDriverError, self).__init__(errors or [])
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class ExtensionDriverError(exceptions.InvalidInput):
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"""Extension driver call failed."""
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message = _("Extension %(driver)s failed.")
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class ExtensionDriverNotFound(exceptions.InvalidConfigurationOption):
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"""Required extension driver not found in ML2 config."""
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message = _("Extension driver %(driver)s required for "
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"service plugin %(service_plugin)s not found.")
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class UnknownNetworkType(exceptions.NeutronException):
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"""Network with unknown type."""
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message = _("Unknown network type %(network_type)s.")
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