1623094 - Stop using backoff_factor in the bugbug optimizer

Status: RESOLVED FIXED

(Firefox Build System :: Task Configuration, task, P3)

Description

[Andrew Halberstadt [:ahal]]

I implemented a retry with backoff factor for the bugbug scheduler:
https://searchfox.org/mozilla-central/source/taskcluster/taskgraph/optimize/bugbug.py#31

But in this case it makes sense to poll on a regular interval instead. The backoff factor approach assumes that the service is having issues that have a high probability of being fixed right away. Whereas in this case a status of 202 just means computation hasn't finished yet, and it's nearly as likely that it finishes in 2 seconds as it is in 1 second.

Comment 1

[Andrew Halberstadt [:ahal]]

Attachment: Bug 1623094 - [taskgraph] Use regular retry interval when querying bugbug service, r?marco

Comment 2

[Andrew Halberstadt [:ahal]]

Attachment: Bug 1623094 - [ci] Enable debug logging for shadow-scheduler tasks, r?marco

Depends on D67343

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/93891e8ceb51
[taskgraph] Use regular retry interval when querying bugbug service, r=marco
https://hg.mozilla.org/integration/autoland/rev/62a22274ff2c
[ci] Enable debug logging for shadow-scheduler tasks, r=marco

Comment 4

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/93891e8ceb51
https://hg.mozilla.org/mozilla-central/rev/62a22274ff2c