Soeren Laursen created AIRFLOW-6799: ---------------------------------------
Summary: webgui cannot display all tasks Key: AIRFLOW-6799 URL: https://issues.apache.org/jira/browse/AIRFLOW-6799 Project: Apache Airflow Issue Type: Bug Components: webserver Affects Versions: 1.10.9, 1.10.7 Environment: linux in a docker container. Reporter: Soeren Laursen The we have "to many" task the graph rendering stops with an Edge 'undefined' is not in graph javascript error, There is no graph in the webgui. Lowering the number of task will enable the the rendering again. Examplecode: from airflow import DAG from airflow.models import DAG from airflow.operators.dummy_operator import DummyOperator from datetime import datetime from datetime import timedelta DAG_task_concurrency = 30 DAG_max_active_runs = 10 MAIN_DAG_ID = 'BUG_IN_GRAPH_DISPLAY' default_args = { 'owner':'prod', 'depends_on_past':False, 'email':['s...@fcoo.dk'], 'email_on_failure':False, 'email_on_retry':False, 'retries':3, 'retry_delay':timedelta(seconds=30), 'queue':'default'} BUG_DAG = DAG(MAIN_DAG_ID, default_args=default_args, catchup=False, orientation='LR', concurrency=DAG_task_concurrency, schedule_interval='@once', max_active_runs=DAG_max_active_runs, start_date=(datetime(2020, 2, 5)) ) # To many tasks max_task = 160 # 156 ok task_range = list(range(0, max_task + 1)) start_task = DummyOperator(task_id='start_task', dag=BUG_DAG) after_all_complete = DummyOperator(task_id='after_all_complete', dag=BUG_DAG) for task_step in task_range: task1 = DummyOperator(task_id='task_{0}'.format(task_step),dag=BUG_DAG) start_task >> task1 >> after_all_complete -- This message was sent by Atlassian Jira (v8.3.4#803005)