Resetting ETL Checkpoint for User Data

Customer Managed Applies to customer-managed instances of Alation

Use the steps below to reset the ETL checkpoint for user data in Alation Analytics V2 after updating Alation to:

  • 2022.1.4 (or a later patch release of 2022.1 if 2022.1.4 is skipped)

  • 2021.4.10 (or a later patch release of 2021.4 if 2021.4.10 is skipped)

These steps require SSH access to the Alation server.

  1. Alation provides a script for resetting the user ETL checkpoint. Download the Zip file with the script from Alation Community: Reset ETL checkpoint for users in Alation Analytics V2 (requires login to Community).

  2. Extract the script file reset_checkpoint_for_user.py.

  3. Copy the script file to the Alation server. Initially, you can place it into the /tmp directory on the host.

  4. Use SSH to connect to the Alation server.

  5. Copy the reset_checkpoint_for_user.py file to the /tmp directory inside the Alation chroot. For example, if you have it in the /tmp directory on the host, then copy it to the /tmp directory at /opt/alation/alation/data2/tmp/.

    sudo cp /tmp/reset_checkpoint_for_user.py /opt/alation/alation/data2/tmp/

  6. Enter the Alation shell:

    sudo /etc/init.d/alation shell

  7. Change user to alation:

    sudo su alation

  8. Copy the reset_checkpoint_for_user.py file to /opt/alation/django/alation_analytics_v2/one_off_scripts/.

    cp /data2/tmp/reset_checkpoint_for_user.py /opt/alation/django/alation_analytics_v2/one_off_scripts/

  9. Navigate to the one_off_scripts directory:

    cd /opt/alation/django/alation_analytics_v2/one_off_scripts/

  10. Run the script:

    python reset_checkpoint_for_user.py

  11. Exit from the Alation shell:

    exit

  12. Go to the Alation Analytics V2 Settings page in the Alation user interface and run the ETL.