Package: tracker.debian.org
Severity: normal
I have a strange and severe problem with new package tracker.
I'm an active Firefox user/addict. Usually I have 100+ tabs opened and my
browser works fast and responds well for all sort of web sites.
Ever since introduction of "tracker.debian.org" I could not use it because
any page from tracker.debian.org, like [1], loads for 1...3 minutes(!),
making my browser and all the tabs unresponsive.
[1]: https://tracker.debian.org/pkg/docker.io
So I've been using old packages.qa.debian.org [1] instead but some time
ago avoiding new package tracker became very difficult because DDPO,
Maintainer dashboard and "Debian queries" browser extension have all
switched to tracker.debian.org.
Now when qa.debian.org and other pages switched to new package tracker
I have to be very careful to avoid clicking any links that might take
me to tracker.debian.org.
[2]: https://packages.qa.debian.org/d/docker.io.html
tracker.debian.org is the only web site I know to be so problematic
in Firefox. Problem is very persistent and reproducible from few
computers on network. All releases of Firefox Quantum are affected.
It would be great to understand what tracker.debian.org is doing
which is so special, and how it triggers that drastic performance
problem in Firefox.
I've tried everything to troubleshoot: moving profile to tmpfs,
disabling all extensions, incognito mode, new profile, disabling
javascript, blocking cookies, different version of Firefox from
other user's account on another computer, etc. - nothing seems to help.
It takes 38_500 ms. just to load "dense.css" which is only 805 bytes.
Network connection is fast, no congestion or packet loss, all other
web sites are responsive and even when they load slowly my browser
remains responsive so I can switch to other tabs unlike when
it fetches from tracker.debian.org...
In Chromium loading pages from tracker.debian.org usually take
1...3 seconds. But please don't dismiss that report with
"we don't care about Firefox" yet.
Normally I would have dismissed that problem as specific to
a particular user environment. However in my case I visit
hundreds of web sites and not even one of them (except
tracker.debian.org) ever exhibited such problem.
For a while I thought that "tracker.debian.org" is just immature
but some time ago I've noticed that from some other networks
Firefox load pages from tracker.debian.org just fine.
Now I'm suspecting that somewhere we may have something like
misconfigured router with black hole problem (i.e. silently
dropping large packets). It might be something else but here
is what I get when I run `mtr tracker.debian.org`:
~~~~
Host Loss% Snt Last Avg Best Wrst StDev
11. te0-1-0-17.cr4.yrk.bytemark.co.uk 0.0% 14 316.4 310.7 307.2 325.6 5.3
12. po1.ar2.dc1.yo26.yrk.bytemark.co.uk 0.0% 14 315.5 315.0 309.5 341.8 8.4
13. bm-bl1.debian.org 53.8% 14 309.7 311.4 309.3 316.4 2.7
14. ticharich.debian.org 0.0% 14 315.5 314.0 309.7 331.6 7.0
~~~~
From another network trace looks better:
~~~~
25. te0-1-0-17.cr3.yrk.bytemark.co.uk 0.0% 85 313.1 313.2 312.8 319.5 0.9
26. po1.ar1.dc1.yo26.yrk.bytemark.co.uk 0.0% 85 324.8 316.6 312.6 337.8 7.1
27. bm-bl1.debian.org 0.0% 85 312.4 312.8 312.3 336.5 2.6
28. ticharich.debian.org 0.0% 85 313.5 313.5 312.8 320.6 1.2
~~~~
I hope there is an explanation to this and hopefully remedy.
Any ideas?
Thanks.
--
Cheers,
Dmitry Smirnov
---
Truth — Something somehow discreditable to someone.
-- H. L. Mencken, 1949
Attachment:
signature.asc
Description: This is a digitally signed message part.