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Task Instances not correctly displayed in task group header in grid view #55319

Closed
Bug
#58092
#55670
Closed
Task Instances not correctly displayed in task group header in grid view#55319
Bug
#58092
#55670
Assignees
yimingpeng
Labels
affected_version:3.0Issues Reported for 3.0affected_version:3.1Issues Reported for 3.1area:UIRelated to UI/UX. For Frontend Developers.area:dynamic-task-mappingAIP-42priority:mediumBug that should be fixed before next release but would not block a release
Milestone
Airflow 3.2.0

Description

@jscheffl
jscheffl
opened on Sep 5, 2025

Apache Airflow version

main (development)

If "Other Airflow 2 version" selected, which one?

No response

What happened?

If I take a look to a task group the header is showing the task summaries of states, but I see actually two "bugs":

  1. The task instance summary shows the Dag defined task counts as "count"/total but is a mapped task is in the task group the mapping is not respected. For example the run here mapped 40 tasks but only "3" are shown as success:
Image

Mapped task details:

Image
  1. Also taking a closer look to ^^^ it is showing the total of "3" tasks (and not 42) but the task isnatnce list shows no results (translated: "Kein Element vom Typ Task Instanzen gefunden")
Image

What you think should happen instead?

  1. The task count should show the number of task instances in the run including any mapped total and not only the "abstract" task count from Dag structure.
  2. The lower part of the details panel should list all tasks in the task group

How to reproduce

Start current main from breeze and run the "integration_test.py" Dag from Edge, set any number of task mapping on trigger and inspect the task group of the mapped task in grid view

Operating System

Linux

Versions of Apache Airflow Providers

No response

Deployment

Other

Deployment details

Breeze

Anything else?

No response

Are you willing to submit PR?

  • Yes I am willing to submit a PR!

Code of Conduct

Activity

  1. jscheffl
    added this to the Airflow 3.1.0 milestone on Sep 5, 2025
  2. jscheffl
    added the
    Bug
    issue type on Sep 5, 2025
  3. jscheffl
    added
    kind:bugThis is a clearly a bug
    area:UIRelated to UI/UX. For Frontend Developers.
    on Sep 5, 2025
  4. dosubot
    added
    area:dynamic-task-mappingAIP-42
    on Sep 5, 2025

  5. yimingpeng commented on Sep 7, 2025

    @yimingpeng
    yimingpeng
    on Sep 7, 2025
    Contributor

    would like to give a try, thanks @jscheffl

  6. jscheffl
    assigned
    yimingpeng
    on Sep 7, 2025
  7. vatsrahul1001
    added
    priority:mediumBug that should be fixed before next release but would not block a release
    affected_version:3.0Issues Reported for 3.0
    and removed
    kind:bugThis is a clearly a bug
    on Sep 8, 2025
  8. kaxil
    modified the milestones: Airflow 3.1.0, Airflow 3.1+ on Sep 9, 2025
  9. vatsrahul1001
    added
    affected_version:3.1Issues Reported for 3.1
    on Sep 11, 2025

  10. pierrejeambrun commented on Oct 13, 2025

    @pierrejeambrun
    pierrejeambrun
    on Oct 13, 2025
    Member

    2- is caused by prefix_group_id=False. This will remove the prefix from the Tis display name, and therefore the match won't work anymore. Which respects the display name search. Instead we should probably implement proper task_group filtering feature on the API side.

  11. kaxil
    closed this as completedin #55670on Oct 31, 2025
  12. github-actions
    added a commit that references this issue on Oct 31, 2025

    [v3-1-test] Fix task instances counting in task group header (#55670)

    76853e5
  13. kaxil
    added a commit that references this issue on Oct 31, 2025

    Fix task instances counting in task group header (apache#55670)

    07d2892
  14. github-actions
    added a commit that references this issue on Oct 31, 2025

    [v3-1-test] Fix task instances counting in task group header (apache#…

    f45afda
  15. kaxil
    added 2 commits that reference this issue on Oct 31, 2025

    Fix task instances counting in task group header (#55670)

    66b4874

    Fix task instances counting in task group header (#55670)

    9dc3096

  16. jscheffl commented on Nov 1, 2025

    @jscheffl
    jscheffl
    on Nov 1, 2025
    ContributorAuthor

    Re-opening as issue part 2 is not resolved. But thanks for the first 80%!

  17. jscheffl
    reopened this on Nov 1, 2025

  18. pierrejeambrun commented on Nov 4, 2025

    @pierrejeambrun
    pierrejeambrun
    on Nov 4, 2025
    Member

    Re-opening as issue part 2 is not resolved. But thanks for the first 80%!

    Thanks. This part is related to how the UI uses the API to do task group filtering. (using the task. group prefix in a task_id pattern search), and it will not work if the task group is declared with prefix_group_id=False

  19. Copilot
    added a commit that references this issue on Dec 5, 2025

    Fix task instances counting in task group header (apache#55670)

    5257908
  20. pierrejeambrun
    closed this as completedin #58092on Dec 12, 2025
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affected_version:3.0Issues Reported for 3.0affected_version:3.1Issues Reported for 3.1area:UIRelated to UI/UX. For Frontend Developers.area:dynamic-task-mappingAIP-42priority:mediumBug that should be fixed before next release but would not block a release

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