[bind10-dev] sorting RDATA in-memory

[JINMEI Tatuya / 神明達哉]

At Tue, 12 Feb 2013 16:19:51 +1100,
Mark Andrews <marka at isc.org> wrote:

> > This is a question about the BIND 9 implementation, but I hope someone
> > in this list may have some clue.
> > 
> > BIND 9 sorts RRs of the same RRset in the DNSSEC order when it loads
> > the records into memory (unless the special compile time options is
> > specified).  Is there any reason for this behavior?  Obviously we need
> > to sort them when we need to compute the signature of the RRset, but I
> > don't see the need for it in answering queries.  I'm curious about
> > whether there's any other reason for the convenience of calculating
> > the signature.
> > 
> > Hopefully someone can clarify that...
> 
> Basically so there is a deterministic order.  Merges are a little easier.

I see, thanks.

---
JINMEI, Tatuya