气流 - alembic.util.exc.CommandError：无法找到“a13f7613ad25”标识的修订版

Question

webserver_1  | The above exception was the direct cause of the following exception:
webserver_1  | 
webserver_1  | Traceback (most recent call last):
webserver_1  |   File "/usr/local/bin/airflow", line 8, in <module>
webserver_1  |     sys.exit(main())
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/airflow/__main__.py", line 40, in main
webserver_1  |     args.func(args)
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/airflow/cli/cli_parser.py", line 48, in command
webserver_1  |     return func(*args, **kwargs)
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/airflow/cli/commands/db_command.py", line 31, in initdb
webserver_1  |     db.initdb()
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/airflow/utils/db.py", line 549, in initdb
webserver_1  |     upgradedb()
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/airflow/utils/db.py", line 684, in upgradedb
webserver_1  |     command.upgrade(config, 'heads')
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/command.py", line 294, in upgrade
webserver_1  |     script.run_env()
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/script/base.py", line 490, in run_env
webserver_1  |     util.load_python_file(self.dir, "env.py")
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/util/pyfiles.py", line 97, in load_python_file
webserver_1  |     module = load_module_py(module_id, path)
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/util/compat.py", line 184, in load_module_py
webserver_1  |     spec.loader.exec_module(module)
webserver_1  |   File "<frozen importlib._bootstrap_external>", line 728, in exec_module
webserver_1  |   File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/airflow/migrations/env.py", line 108, in <module>
webserver_1  |     run_migrations_online()
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/airflow/migrations/env.py", line 102, in run_migrations_online
webserver_1  |     context.run_migrations()
webserver_1  |   File "<string>", line 8, in run_migrations
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/runtime/environment.py", line 813, in run_migrations
webserver_1  |     self.get_context().run_migrations(**kw)
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/runtime/migration.py", line 549, in run_migrations
webserver_1  |     for step in self._migrations_fn(heads, self):
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/command.py", line 283, in upgrade
webserver_1  |     return script._upgrade_revs(revision, rev)
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/script/base.py", line 370, in _upgrade_revs
webserver_1  |     for script in reversed(list(revs))
webserver_1  |   File "/usr/local/lib/python3.7/contextlib.py", line 130, in __exit__
webserver_1  |     self.gen.throw(type, value, traceback)
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/script/base.py", line 203, in _catch_revision_errors
webserver_1  |     compat.raise_(util.CommandError(resolution), from_=re)
webserver_1  |   File "/usr/local/lib/python3.7/site-packages/alembic/util/compat.py", line 296, in raise_
webserver_1  |     raise exception
webserver_1  | alembic.util.exc.CommandError: Can't locate revision identified by 'a13f7613ad25'

这个错误目前给我们的 Airflow 部署带来了各种挫折。我们在 docker 中运行气流，奇怪的是，这个问题发生在我自己身上，而不是我的同事身上，这使得调试非常具有挑战性。我们发现alembic util 命令错误无法找到标识符，但目前还不清楚我们可以采取哪些措施来解决该错误。

Answer 1

您应该擦除数据库并从头开始重新创建它 ( airflow db reset)。显然，您的数据库已损坏 - 如果您使用 Arirflow 的某些开发版本或在 Airflow 2 上运行某些旧版本的 airflow 1.10 或反之亦然，则可能会发生这种情况。

我想（因为你正在谈论co-worker's数据库your- 这些都是开发数据库，​​所以你应该能够从头开始重置它们。

如果这是一个使用 sqlite 的开发数据库，​​还可以删除 sqlite3 文件（您将在${AIRFLOW_HOME}目录中找到它）。这将删除数据库，并且气流将在启动时自动从头开始创建一个数据库。