Why not let the process run parallely and then picked out the one which is retured firstly to the client?
Regards 2015-02-23 18:28 GMT+08:00 Peter van Dijk <[email protected]>: > Hello, > > On 23 Feb 2015, at 6:09 , Hongyi Zhao <[email protected]> wrote: > > > forward-zones Comma separated list of ’zonename=IP’ pairs. Queries for > zones listed here will be forwarded to the IP address listed. Since version > 3.1.5, multiple IP addresses can be specified. Additionally, port numbers > other than 53 can be configured. > > Sample syntax: forward-zones=example.org=203.0.113.210:5300;127.0.0.1, > powerdns.com=127.0.0.1;198.51.100.10:530 > > > > I just want to know the mechanism when we use multiple ip for Query a > zone. I mean is this process sequel or parallel? When we using multiple > ip for resoving a specific domain-name, which answer given by the > forwarders should be picked up by PowerDNS Recursor and then return it to > user's client program? > > It’s best to assume the process is random. For any given query, the > resulting data can come from any of the IPs, and there is no guarantee from > which one. So, in general, make sure your backend IPs agree on the data! > > Kind regards, > -- > Peter van Dijk > Netherlabs Computer Consulting BV - http://www.netherlabs.nl/ > > > _______________________________________________ > Pdns-users mailing list > [email protected] > http://mailman.powerdns.com/mailman/listinfo/pdns-users > -- Hongyi Zhao <[email protected]> Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of Sciences GnuPG DSA: 0xD108493
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