72 lines
2.0 KiB
Python
Executable File
72 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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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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"""
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Tornado Storage daemon manages AoE volumes via AMQP messaging.
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"""
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import logging
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from nova import vendor
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from tornado import ioloop
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from nova import flags
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from nova import rpc
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from nova import server
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from nova import utils
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from nova.volume import storage
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FLAGS = flags.FLAGS
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flags.DEFINE_integer('storage_report_state_interval', 10,
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'seconds between broadcasting state to cloud',
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lower_bound=1)
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def main(argv):
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bs = storage.BlockStore()
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conn = rpc.Connection.instance()
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consumer_all = rpc.AdapterConsumer(
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connection=conn,
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topic='%s' % FLAGS.storage_topic,
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proxy=bs)
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consumer_node = rpc.AdapterConsumer(
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connection=conn,
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topic='%s.%s' % (FLAGS.storage_topic, FLAGS.node_name),
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proxy=bs)
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io_inst = ioloop.IOLoop.instance()
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scheduler = ioloop.PeriodicCallback(
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lambda: bs.report_state(),
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FLAGS.storage_report_state_interval * 1000,
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io_loop=io_inst)
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injected = consumer_all.attachToTornado(io_inst)
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injected = consumer_node.attachToTornado(io_inst)
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scheduler.start()
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io_inst.start()
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if __name__ == '__main__':
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utils.default_flagfile()
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server.serve('nova-volume', main)
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