Closed Bug 1495537 Opened Last year Closed Last year
Drop TRR timeout from 3 seconds to something close to 1 sec
Right now we wait for 3 seconds for TRR before marking requests failed and falling back to regular DNS. Proper fix is bug 1495523 but meanwhile we should drop the timeout to something that gets hit <1% of the time, but is still shorter than 3 Sec. 98% of Cloudflare TRR requests take <1sec, so Daniel and I are thinking dropping the timeout to 1.5 seconds would make sense here. Should be a one-liner--let's land and uplift to beta if possible.
Priority: -- → P1
99.15% of all TRR requests are done within 1.56 seconds (in beta 63) and 1500 milliseconds is already a very long time to wait for a resolve to fail... The median is 44 ms and 95th percentile is at 471 ms. MozReview-Commit-ID: CICBAA0cEBd
Comment on attachment 9013427 [details] bug 1495537 - lower the default trr request-timeout to 1500 ms Dragana Damjanovic [:dragana] has approved the revision.
Attachment #9013427 - Flags: review+
Pushed by email@example.com: https://hg.mozilla.org/integration/autoland/rev/26d8702b46cd lower the default trr request-timeout to 1500 ms r=dragana
Comment on attachment 9013427 [details] bug 1495537 - lower the default trr request-timeout to 1500 ms [Beta/Release Uplift Approval Request] Feature/Bug causing the regression: Bug 1495537 User impact if declined: For TRR-users with crappy connections or bad DoH server, a less nimble browser. Is this code covered by automated tests?: No Has the fix been verified in Nightly?: Yes Needs manual test from QE?: No If yes, steps to reproduce: List of other uplifts needed: None Risk to taking this patch: Low Why is the change risky/not risky? (and alternatives if risky): It's just a pref change String changes made/needed: none
Attachment #9013427 - Flags: approval-mozilla-beta?
Comment on attachment 9013427 [details] bug 1495537 - lower the default trr request-timeout to 1500 ms Pref change to fix a bug in a 63 feature, uplift approved for 63 beta 12, thanks.
Attachment #9013427 - Flags: approval-mozilla-beta? → approval-mozilla-beta+
You need to log in before you can comment on or make changes to this bug.