wow, lots of akamai
chas at chasmo.org
Tue Apr 6 16:16:38 UTC 2021
On 4/5/21 10:23 PM, Robert Brockway wrote:
> On Thu, 1 Apr 2021, Jean St-Laurent via NANOG wrote:
>> What happened is that it would create a kind of internal DDoS and
>> they would all timed out and give a weird error message. Something
>> very useful like Error Code 0x8098808 Please call our support line at
>> this phone number.
> If only there was a way to address the Thundering Herd problem before
> the cloud. :)
>> This simple change to add 3 lines of code to add a random artificial
>> boot penalty of few seconds, completely solve the problem.
> Bingo. Now, the trick is to catch this before it causes an self-DDoS.
> This is a problem that has been recognised for decades and this is
> unfortunately a good example of how operational experience is still
> not being distributed properly. Too many managers think that
> operational work is obvious and just a result of common sense. It isn't.
Same problem as disk drives powering up simultaneously
in datacenters. SCSI drives have (had?) a random delay
mechanism to distribute the initial power surge over a few
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