Re: DNS with Akamai

[Lloyd Taylor <ltaylor () keynote com>]

Yup.  Across the board from 8am to 8:15am EDT:

    http://web504.keynote.com/mykeynote/Post/KB40data_071004_081218.asp

(Scroll down about 25% to see the error-by-time chart)

Note that the time resolution of this chart is 15 minutes.

Not an Akamai issue.

--Lloyd

On Sat, 10 Jul 2004, Lloyd Taylor wrote:

> Date: Sat, 10 Jul 2004 08:01:22 -0700 (PDT)
> From: Lloyd Taylor <ltaylor () keynote com>
> To: John Payne <john () sackheads org>
> Cc: joe <joej () rocknyou com>, nanog () merit edu
> Subject: Re: DNS with Akamai
>
>
> Keynote data shows a small spike in DNS errors for the KB40 index
> from 8am to 8:30am EDT this morning.  Normally we see less than
> 1 error per 4000 datapoints per half hour.  During this period,
> it was 22 errors.  There was also a jump in "connection timed out"
> from less than one to 18 during this period.
>
> Looking at the deaggregated data, it appears that the spike was
> due to brief problems on many of the measured sites, rather than
> any one particular site.
>
> It does not appear to be an Akamai-specific DNS issue at all.  It
> does not appear to be especially significant (22/4000 < .1%) either.
>
> I'll do some more digging...
>
> --Lloyd
>
>
> On Sat, 10 Jul 2004, John Payne wrote:
>
> > Date: Sat, 10 Jul 2004 00:55:47 -0400
> > From: John Payne <john () sackheads org>
> > To: joe <joej () rocknyou com>
> > Cc: nanog () merit edu
> > Subject: Re: DNS with Akamai
> >
> >
> >
> > On Jul 10, 2004, at 12:20 AM, joe wrote:
> >
> > > Anyone noticing issues with Akamai and their DNS stuff?
> > > Just wondering because I'm seeing strange responses regarding
> > > www.foxnews.com, in that one of the Cnames a20.g.akamai.com
> > > is changing every 20 seconds, and sometimes no response at all.
> >
> > Is it just foxnews or other sites too?  There's a thread on inet-access
> > regarding foxnews and windows 2003 nameservers.