koji

#4465 Manually assigned tasks should not (?) hit assignment timeout
Closed: Fixed by mikem. Opened by davidlt.

Closed: Fixed
Reopen Issue

In Fedora/RISC-V we are doing a lot of manual scheduling. We have machines in different buckets:
- Strong single-thread performance
- Many-core, low single-thread performance
- High-memory
- [..]

Also sometimes we want a task to land on a particular board because it implements different ISA extensions.

We are using to schedule (i.e. assign-task) to particular boards depending on the build. Basically having individual queues per build machine. Then we control the order based on task priority.

This doesn't work on newer Koji with scheduler updates. This seems to be due to assignment timeout.

% koji -p riscv scheduler-info --task 15457
Task      Host                 State   Created           Started           Ended
--------------------------------------------------------------------------------------------
15457     buildhw-riscv-20.fedoraproject.org OPEN    25-09-19 12:15:43 25-09-19 12:22:50
15457     buildhw-riscv-03.fedoraproject.org OPEN    25-09-19 12:16:29 25-09-19 12:22:50
15457     buildhw-riscv-20.fedoraproject.org OPEN    25-09-19 12:22:44 25-09-19 12:22:50
% koji -p riscv scheduler-logs --task 15457
Task       Host                 Time                      Message
----------------------------------------------------------------------------------------
15457      buildvm-x86-riscv01.rdu3.fedoraproject.org Fri Sep 19 12:15:39 2025  Host refused task: automatic arch refusal
15457      buildvm-x86-riscv02.rdu3.fedoraproject.org Fri Sep 19 12:15:39 2025  Host refused task: automatic arch refusal
15457      buildhw-riscv-20.fedoraproject.org Fri Sep 19 12:15:43 2025  Assigning task
15457      buildhw-riscv-03.fedoraproject.org Fri Sep 19 12:16:29 2025  Assigning task
15457      buildhw-riscv-03.fedoraproject.org Fri Sep 19 12:21:44 2025  Host refused task: assignment timeout
15457      buildhw-riscv-03.fedoraproject.org Fri Sep 19 12:21:44 2025  Task assignment timeout
15457      buildhw-riscv-20.fedoraproject.org Fri Sep 19 12:22:44 2025  Assigning task

If a admin manually assigns a task to a particular builder we would prefer scheduler not to change that. Once it's done processing assigned tasks it could do a standard thing.

I had a quick look at API for assignTask. There seems to be:

Specify override=True to prevent the scheduler from reassigning later

Maybe that's what should be exposed to CLI?

Maybe that's what should be exposed to CLI?

Ah, yes, sorry for the oversight there. In the short term you can use the direct api call. E.g.

$ koji -p riscv call assignTask TASKID SOMEHOST override=True

Metadata Update from @mikem:
- Custom field Size adjusted to None

Metadata Update from @mikem:
- Issue set to the milestone: 1.36

PR 4486

Metadata Update from @mikem:
- Issue tagged with: testing-basic

Metadata Update from @mfilip:
- Issue tagged with: testing-done

Commit 68f7f97b fixes this issue

Commit da74a504 fixes this issue

This issue has been migrated to Fedora Forge:
https://forge.fedoraproject.org/koji/koji/issues/4465

Please continue any further discussion there.
Metadata
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testing-basic testing-done

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Low
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