d94d6d6892
This change introduces to possibility for the consumer application to change the default oslo.messaging config options. Same API interface as oslo.db have been taken. The first option is executor_thread_pool_size. This option was called rpc_thread_pool_size, but because it's used by notification and rpc 'executor_thread_pool_size' looks a better name. Changing executor_thread_pool_size default will be useful for ceilometer the default of 64 is really to small to consume many notifications at once for batching them. When is clearly sufficient for rpc stuffs. Change-Id: Iea0d7a72e38d27c600403c815258aa5eee0d0c8c
99 lines
3.5 KiB
Python
99 lines
3.5 KiB
Python
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# Copyright 2014 Red Hat, Inc.
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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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__all__ = [
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'list_opts'
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]
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import copy
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import itertools
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from oslo_messaging._drivers import amqp
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from oslo_messaging._drivers import base as drivers_base
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from oslo_messaging._drivers import impl_qpid
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from oslo_messaging._drivers import impl_rabbit
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from oslo_messaging._drivers import impl_zmq
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from oslo_messaging._drivers import matchmaker
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from oslo_messaging._drivers import matchmaker_redis
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from oslo_messaging._drivers import matchmaker_ring
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from oslo_messaging._drivers.protocols.amqp import opts as amqp_opts
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from oslo_messaging._executors import impl_pooledexecutor
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from oslo_messaging.notify import notifier
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from oslo_messaging.rpc import client
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from oslo_messaging import transport
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_global_opt_lists = [
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drivers_base.base_opts,
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impl_zmq.zmq_opts,
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matchmaker.matchmaker_opts,
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impl_pooledexecutor._pool_opts,
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notifier._notifier_opts,
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client._client_opts,
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transport._transport_opts,
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]
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_opts = [
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(None, list(itertools.chain(*_global_opt_lists))),
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('matchmaker_redis', matchmaker_redis.matchmaker_redis_opts),
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('matchmaker_ring', matchmaker_ring.matchmaker_opts),
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('oslo_messaging_amqp', amqp_opts.amqp1_opts),
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('oslo_messaging_rabbit', list(itertools.chain(amqp.amqp_opts,
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impl_rabbit.rabbit_opts))),
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('oslo_messaging_qpid', list(itertools.chain(amqp.amqp_opts,
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impl_qpid.qpid_opts)))
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]
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def list_opts():
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"""Return a list of oslo.config options available in the library.
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The returned list includes all oslo.config options which may be registered
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at runtime by the library.
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Each element of the list is a tuple. The first element is the name of the
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group under which the list of elements in the second element will be
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registered. A group name of None corresponds to the [DEFAULT] group in
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config files.
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This function is also discoverable via the 'oslo_messaging' entry point
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under the 'oslo.config.opts' namespace.
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The purpose of this is to allow tools like the Oslo sample config file
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generator to discover the options exposed to users by this library.
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:returns: a list of (group_name, opts) tuples
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"""
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return [(g, copy.deepcopy(o)) for g, o in _opts]
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def set_defaults(conf, executor_thread_pool_size=None):
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"""Set defaults for configuration variables.
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Overrides default options values.
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:param conf: Config instance specified to set default options in it. Using
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of instances instead of a global config object prevents conflicts between
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options declaration.
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:type conf: oslo.config.cfg.ConfigOpts instance.
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:keyword executor_thread_pool_size: Size of executor thread pool.
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:type executor_thread_pool_size: int
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:default executor_thread_pool_size: None
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"""
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if executor_thread_pool_size is not None:
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conf.set_default('executor_thread_pool_size',
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executor_thread_pool_size)
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