On Fri, Apr 25, 2014 at 06:51:26PM -0400, Chuck Anderson wrote: > I'm starting a new thread to clarify and emphasize the problem I'm > actually trying to solve. Here is the problem restated as I posted it > to the dns-operations list: > > ----- > Is it really expected that the first DNS server listed in > /etc/resolv.conf should never go down? Operationally speaking, who > can actually rely on listing multiple nameservers in /etc/resolv.conf > and using libc's failover mechanism in any kind of production server? > Because the failover behavior in libc is atrocious--each new or > existing process has to re-do the failover after timing out, and even > long-running processes have to call res_init() to re-read resolv.conf. That is because glibc does not maintain a system-wide record of this and for good reason. nscd does, but is not feature-complete (no round-robin for example). Siddhesh
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