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Make the parent worker process automatically restart hung or dead child processes. The parent will check all the child processes every 30 sec to make sure they are still running. If not they will be restarted. Also child processes update a heartbeat timestamp periodically while processing messages. If the parent detects that that timestamp hasn't been updated in a configurable amount of time (default 600sec) it terminates the old process and spins up a new one. Change-Id: I28ffbe64391d04a6e85b7e197393352ee1e978b0
49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. 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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import json
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import os
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config_filename = os.environ.get('STACKTACH_DEPLOYMENTS_FILE',
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'stacktach_worker_config.json')
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try:
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from local_settings import *
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config_filename = STACKTACH_DEPLOYMENTS_FILE
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except ImportError:
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pass
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config = None
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with open(config_filename, "r") as f:
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config = json.load(f)
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def deployments():
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return config['deployments']
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def topics():
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return config['topics']
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def workers():
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if 'workers' in config:
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return config['workers']
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else:
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return dict()
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