CODEWITHSUNDEEP
airflow
fernandosjp
fernandosjp

Reputation: 2768

Airflow will keep showing example dags even after removing it from configuration

Airflow example dags remain in the UI even after I have turned off load_examples = False in config file.

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The system informs the dags are not present in the dag folder but they remain in UI because the scheduler has marked it as active in the metadata database.

I know one way to remove them from there would be to directly delete these rows in the database but off course this is not ideal.How should I proceed to remove these dags from UI?

Upvotes: 13

Views: 16369

Answers (4)

Ena
Ena

Reputation: 3631

Airflow 1.10+:

  • Edit airflow.cfg and set load_examples = False
  • For each example dag run the command airflow delete_dag example_dag_to_delete

This avoids resetting the entire airflow db.

(Since Airflow 1.10 there is the command to delete dag from database, see this answer )

Upvotes: 5

mdivk
mdivk

Reputation: 3727

Definitely airflow resetdb works here.

What I do is to create multiple shell scripts for various purposes like start webserver, start scheduler, refresh dag, etc. I only need to run the script to do what I want. Here is the list:

(venv) (base) [pchoix@hadoop02 airflow]$ cat refresh_airflow_dags.sh
#!/bin/bash
cd ~
source venv/bin/activate
airflow resetdb
(venv) (base) [pchoix@hadoop02 airflow]$ cat start_airflow_scheduler.sh
#!/bin/bash
cd /home/pchoix
source venv/bin/activate
cd airflow
nohup airflow scheduler >> "logs/schd/$(date +'%Y%m%d%I%M%p').log" &
(venv) (base) [pchoix@hadoop02 airflow]$ cat start_airflow_webserver.sh
#!/bin/bash
cd /home/pchoix
source venv/bin/activate
cd airflow
nohup airflow webserver >> "logs/web/$(date +'%Y%m%d%I%M%p').log" &
(venv) (base) [pchoix@hadoop02 airflow]$ cat start_airflow.sh
#!/bin/bash
cd /home/pchoix
source venv/bin/activate
cd airflow
nohup airflow webserver >> "logs/web/$(date +'%Y%m%d%I%M%p').log" &
nohup airflow scheduler >> "logs/schd/$(date +'%Y%m%d%I%M%p').log" &

Don't forget to chmod +x to those scripts

I hope you find this helps.

Upvotes: 0

Him
Him

Reputation: 1649

There is currently no way of stopping a deleted DAG from being displayed on the UI except manually deleting the corresponding rows in the DB. The only other way is to restart the server after an initdb.

Upvotes: 10

ghosts
ghosts

Reputation: 177

Assuming you have installed airflow through Anaconda. Else look for airflow in your python site-packages folder and follow the below.

After you follow the instructions https://stackoverflow.com/a/43414326/1823570

  • Go to $AIRFLOW_HOME/lib/python2.7/site-packages/airflow directory
  • Remove the directory named example_dags or just rename it to revert back
  • Restart your webserver

cat $AIRFLOW_HOME/airflow-webserver.pid | xargs kill -9

airflow webserver -p [port-number]

Upvotes: 2

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