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From "Jason J. W. Williams" <jasonjwwilli...@gmail.com>
Subject Re: Weird DNS issue "failover" issue
Date Tue, 24 Mar 2015 17:40:39 GMT
No. Just relying on resolv.conf

Sent via iPhone

> On Mar 24, 2015, at 10:32, Alan Carroll <solidwallofcode@yahoo-inc.com> wrote:
> 
> Do you have proxy.config.dns.nameservers set, or any splitDNS enabled (in the splitdns.config
file)?
> 
> 
> 
> On Tuesday, March 24, 2015 12:12 PM, Jason J. W. Williams <jasonjwwilliams@gmail.com>
wrote:
> 
> 
> Thanks Jason. Is there anyway to query ATS to dump which resolvers it thinks it's using?
> 
> Also does that error only apply to queries to the resolvers?
> 
> -J
> 
> Sent via iPhone
> 
> > On Mar 24, 2015, at 9:45, Jason Strongman <jasonstrongman2016@gmail.com> wrote:
> > 
> > if you can reproduce this on the fly, maybe try fleshing it out via a
> > system call tracer.
> > so stop ATS, then start ATS accompanied by a system call tracer..
> > something like strace..
> > 
> > make sure to pass the -f and '-s 10000' arguments to strace. -f
> > follows child processes and -s defines the max string size to capture.
> > 
> > once ATS starts reporting this DNS error, stop the trace, then run
> > through the output file. you will then see where the DNS servers are
> > defined.  thats my brute force way of approaching things.
> > 
> > 
> > On Sun, Mar 22, 2015 at 2:34 AM, Jason J. W. Williams
> > <jasonjwwilliams@gmail.com> wrote:
> >> We just saw a bunch of "connection to DNS server 72.14.179.5 lost,
> >> move to 72.14.188.5" on one of our ATS instances:
> >> 
> >> https://gist.github.com/williamsjj/f99e2a33d0beb27e63d8
> >> 
> >> What confuses me is the server's resolv.conf is:
> >> nameserver 127.0.0.1
> >> nameserver 8.8.8.8
> >> 
> >> So neither 72.14.179.5 nor 72.14.188.5 should be involved. Any advice
> >> is greatly appreciated.
> >> 
> >> (I checked the records.config and proxy.config.dns.resolv_conf is set
> >> to the expected resolv.conf above)
> >> 
> >> Any advice is appreciated.
> >> 
> >> -J
> 
> 

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