Here's my solution: vi airflow-scheduler-failover-controller-master/scheduler_failover_controller/configuration.pyġ21 # Airflow 2.3版本SQL_ALCHEMY_CONN配置在database片段中ġ22 return self.get_config("database", "SQL_ALCHEMY_CONN")ġ23 #return self. The purpose of this project is to create a failover controller that will control which scheduler is up and running to allow HA across an Airflow cluster. Source File: failovercontroller.py From airflow-scheduler-failover-controller with Apache License 2.0, 5 votes, vote down vote up. Manager to automate disaster-recovery failover and. U, plugins, kwargs = u._instantiate_plugins(kwargs)ĪttributeError: 'NoneType' object has no attribute '_instantiate_plugins' Startup the Airflow Scheduler Failover Controller on each node you would like acting as the Scheduler Failover Controller (ONE AT A TIME). Airflow Scheduler Failover Controller n Project Purpose n. Warning The mirrored configuration retrieved by this controller from the partner controller is corrupt. Self.engine = create_engine(sql_alchemy_conn, **engine_args)įile "/home/bigai/miniconda2/envs/airflow_env/lib/python3.7/site-packages/sqlalchemy/util/deprecations.py", line 298, in warnedįile "/home/bigai/miniconda2/envs/airflow_env/lib/python3.7/site-packages/sqlalchemy/engine/create.py", line 520, in create_engine This way you don't come across the issues we described in the 'Motivation' section above. Metadata_service = build_metadata_service(configuration, logger)įile "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/app.py", line 12, in build_metadata_serviceįile "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/metadata/sql_metadata_service.py", line 28, in init The Airflow Scheduler Failover Controller (ASFC) is a mechanism that ensures that only one Scheduler instance is running in an Airflow Cluster at a time. Code Issues 7 Pull requests 0 Actions Projects. teamclairvoyant / airflow-scheduler-failover-controller Public. The Airflow Scheduler Failover Controller (ASFC) is a mechanism that ensures that only one Scheduler instance is running in an Airflow Cluster at a time. The standby node judges whether to switch by monitoring whether the active process is alive or not. Scheduler_nodes_in_cluster, poll_frequency, metadata_service, emailer, failover_controller = get_all_scheduler_failover_controller_objects()įile "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/bin/cli.py", line 26, in get_all_scheduler_failover_controller_objects After the version airflow2.x.x ,airflow can start more then one scheduler at the same time.Is there any way to start up all those node and keep half of them working rather then check. The Airflow Scheduler Failover Controller is essentially run by a master-slave mode. When "scheduler_failover_controller start " is executed in terminal, the following exception is thrown:įile "/home/bigai/miniconda2/envs/airflow_env/bin/scheduler_failover_controller", line 7, inįile "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/bin/scheduler_failover_controller", line 7, inįile "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/bin/cli.py", line 92, in start
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