Re: dns_timeout and dns_retransmit_interval in ms

On 03/12/2011 07:43 PM, Amos Jeffries wrote:
>
> I will also propose a related change. Reducing the dns_timeout to 5
> seconds default.

While it is difficult for most of us to imagine a user who would wait 2
minutes for a page to start loading, I assume it does happen in
poor-connectivity environments. We could argue that admins serving users
in those environments should tune their timeouts accordingly, of course,
but they may be dealing with a mixture of poorly- (e.g., "foreign") and
well-connected (e.g., "local") DNS servers.

Are there any DNS defaults/guidelines that we can rely on here?

> The existing state of several 2 minute dns_timeout expecting to be
> finished within a 1 minute connect_timeout is leading to connection
> problems on some systems where IPv6 times out but IPv4 is perfectly usable.

This would be fixed if we send IPv4 and IPv6 queries simultaneously, right?

Thank you,

Alex.
Received on Mon Mar 14 2011 - 16:35:20 MDT