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b4ca39ceeb
* Reset sqlalchemy connection pool on celery process fork * Fix race condition with async chart loading state * pylint: ignore * prettier
46 lines
1.7 KiB
Python
46 lines
1.7 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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"""
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This is the main entrypoint used by Celery workers. As such,
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it needs to call create_app() in order to initialize things properly
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"""
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from typing import Any
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from celery.signals import worker_process_init
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# Superset framework imports
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from superset import create_app
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from superset.extensions import celery_app, db
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# Init the Flask app / configure everything
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flask_app = create_app()
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# Need to import late, as the celery_app will have been setup by "create_app()"
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# pylint: disable=wrong-import-position, unused-import
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from . import cache, schedules, scheduler # isort:skip
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# Export the celery app globally for Celery (as run on the cmd line) to find
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app = celery_app
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@worker_process_init.connect
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def reset_db_connection_pool(**kwargs: Any) -> None: # pylint: disable=unused-argument
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with flask_app.app_context():
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# https://docs.sqlalchemy.org/en/14/core/connections.html#engine-disposal
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db.engine.dispose()
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