Re: infrastructure problem: koji and bodhi responding very slow / dl with 80kb/s

[Kevin Fenzi]

On Fri, Feb 14, 2020 at 06:21:34PM +0100, Marius Schwarz wrote:
>  Am 14.02.20 um 17:57 schrieb Kevin Fenzi:
>  > On Fri, Feb 14, 2020 at 08:07:19AM -0500, Stephen John Smoogen wrote:
>  >> On Fri, 14 Feb 2020 at 06:21, Leigh Griffin <lgriffin(a)redhat.com&gt; wrote:
>  >>
>  >>>
>  >>> On Fri, Feb 14, 2020 at 12:59 AM Artem Tim <ego.cordatus(a)gmail.com&gt;
> wrote:
>  >>>
>  >>>> Same here. I am waiting several minutes for every my action. This is
> very
>  >>>> unproductive.
>  >>>>
>  >>> Log it as a ticket and I can get the CPE folks to investigate it and see
>  >>> if there is an obvious problem that we can help with.
>  >>>
>  >>
>  >> for people having this issue the ticket is
>  >> https://pagure.io/fedora-infrastructure/issue/8648
>  >>
>  >> We need an idea of the geolocation you are coming from, traceroutes of
>  >> where you are going from and if possible in the browser any links etc which
>  >> are showing very slow (aka in Firefox right click inspect, and switch to
>  >> the network page and do a ^R on the koji.fedoraproject.org page)
>  > Also, it might help if people noted the exact time of day (UTC) they are
>  > accessing things?
>  >
>  > I suspect it may be backup slowness (which happens after 00:00UTC +-
>  > 2hour)
>  
>  "NOW" aka. 14.2.2020 18:15 CET  the same pagecall to koji and firefox
>  rpm download where as smooth as they could be. 
ok. So that means the task link loaded in under 4 seconds?
>  
>  But, the koji test page from the ticket, had 4,5 seconds loadtime, which
>  was the first page i visited  in koji today. 
Had before, but doesn't now? Or still does now?

>  I know this behaviour from my serverfarm, if the initial DNS resolver
> is
>  not responding and the timeout until the second is asked, kicks in.
>  As the server does no longer need to ask for an ip resolv on the second
>  visit (here firefox), it responds faster. 
You mean the end user dns? Sure, could cause problems indeed... but
thats out of our control.
>  
>  This does not explain the worst case download rate from yesterday, but
>  it can explain the results people have writte to the ticket for visiting
>  koji . 
It would seem odd for a variety of people to all hit dns issues at the
same time with different end user servers. 

Anyhow, I have asked for more info in the ticket, hopefully we can
figure something out. 

kevin