On Fri, Jun 15, 2018 at 2:28 PM Shumon Huque <[email protected]> wrote:
> On Fri, Jun 15, 2018 at 1:13 PM Andrew Sullivan <[email protected]> > wrote: > >> On Fri, Jun 15, 2018 at 11:45:19AM -0400, Erik Nygren wrote: >> > A number of folks have been bitten by a bug in bind 9..12 where it >> silently >> > changes the default sorting of rrsets to always be sorted (even if the >> > authoritative response wasn't sorted). >> >> I believe that RRsets are unordered sets by definition. So I supect >> that if people are relying on the order in which they come off the >> wire, they're making a mistake. >> > > This is all true. > > Yet, large numbers of application services on the Internet already rely on > the assumption that address RRsets are returned from resolvers in a > shuffled or randomized order for load balancing reasons. So changing this > behavior will elicit many fierce complaints (I already observed it). > > -- > Shumon. > Round-robin is a documented feature that many applications use. Removing it from DNS resolvers, and then having to add it to a much larger number of applications, does not seem like a good trade-off. -- Bob Harold
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