Re: Hash Table Collisions (n.runs-SA-2011.004)

[Javier Guerra Giraldez <javier@...>]

On Tue, Jan 3, 2012 at 10:26 AM, Mark Hamburg <mark@grubmah.com> wrote:
>> in the original paper, the danger is in hashtables with keys from the
>> network.  they would totally survive a GC.
>
> How? I'm assuming they are delivered as part of the HTTP header. Presumably most web servers wouldn't need to keep around the results of parsing headers from previous requests.

ah, no; previous requests should die soon.

but if the 'too many collisions' alarm is handled at a lower level, it
might fire long before the current request is discarded.  perhaps if
the whole client connection is surrounded by pcall(), and the alert
causes a detectable error....

-- 
Javier