john-jac commented on a change in pull request #18842: URL: https://github.com/apache/airflow/pull/18842#discussion_r725508189
########## File path: docs/apache-airflow/logging-monitoring/callbacks.rst ########## @@ -0,0 +1,75 @@ + .. Licensed to the Apache Software Foundation (ASF) under one + or more contributor license agreements. See the NOTICE file + distributed with this work for additional information + regarding copyright ownership. The ASF licenses this file + to you under the Apache License, Version 2.0 (the + "License"); you may not use this file except in compliance + with the License. You may obtain a copy of the License at + + .. http://www.apache.org/licenses/LICENSE-2.0 + + .. Unless required by applicable law or agreed to in writing, + software distributed under the License is distributed on an + "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + KIND, either express or implied. See the License for the + specific language governing permissions and limitations + under the License. + + + +Callbacks +========= + +A valuable component of logging and monitoring is the use of task callbacks to act upon changes in state of a given task, or across all tasks in a given DAG. +For example, you may wish to alert when certain tasks have failed, or have the last task in your DAG invoke a callback when it succeeds. + Review comment: Thanks Jarek! I've added a note indicating that callback functions are not invoked in the case of state change from UI or CLI. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
