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49 lines
1.3 KiB
49 lines
1.3 KiB
# Copyright (C) 2020 Red Hat, Inc. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain 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, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
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# implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import time |
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import uuid |
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from tooz import coordination |
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ALIVE_TIME = 1 |
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coordinator = coordination.get_coordinator('zake://', b'host-1') |
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coordinator.start() |
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# Create a group |
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group = bytes(str(uuid.uuid4()).encode('ascii')) |
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request = coordinator.create_group(group) |
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request.get() |
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# Join a group |
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request = coordinator.join_group(group) |
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request.get() |
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def when_i_am_elected_leader(event): |
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# event is a LeaderElected event |
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print(event.group_id, event.member_id) |
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# Propose to be a leader for the group |
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coordinator.watch_elected_as_leader(group, when_i_am_elected_leader) |
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start = time.time() |
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while time.time() - start < ALIVE_TIME: |
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coordinator.heartbeat() |
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coordinator.run_watchers() |
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time.sleep(0.1) |
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coordinator.stop()
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