performance report: error when clicking on task

[dchudz]

Looking at tasks in the scheduler dashboard:

... I can click on one, and get a profile view:

However, if I try clicking on a task in a performance report, I get an error:

Desired behavior:

• ideal: similar to scheduler dashboard
• better than status quo: maybe these shouldn't be links? Or clicking should bring you to a message about about how performance reports don't have everything the dashboard does, sorry?

dask                          2022.10.0
distributed                   2022.10.0

[ian-r-rose]

Thanks for the report @dchudz. The individual task view relies on a live tornado server, so I'd say your second suggestion (disabling links to tasks in the static performance reports) is more tractable in the short term.

[dchudz]

Is there currently any good way for a user to view this information (profile for individual task) after the cluster has shut down?

[ian-r-rose]

Is there currently any good way for a user to view this information (profile for individual task) after the cluster has shut down?

Not as things are today, no. The scheduler by design tries not to keep much historical state data, and cleans up tasks after they are no longer needed. If we wanted to record individual task data for performance reports, we'd need to build that functionality. I would also worry a bit about how much that would increase the size of the (already pretty heavy) reports.