nanog mailing list archives
Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications"....
From: Mark Andrews <marka () isc org>
Date: Wed, 28 Nov 2012 08:31:51 +1100
In message <84F8DEBC-C754-4D06-99B0-405CC8A358BD () josephholsten com>, Joseph Hol sten writes:
On 2012-11-27, at 21:07, Jeroen Massar wrote:As such, if an application does not do proper IPv6 today the people in charge of the thing simply did not care...Or do care.=20 =46rom http://wiki.apache.org/hadoop/HadoopIPv6:Apache Hadoop does not currently support IPv6 networks, it uses IPv4 =addresses for communicating between nodes. This is because Hadoop is = designed to work in private datacenters, which usually have private IP = addresses in the 10.x.x.x address space.=20 =95 Using IPv4 addresses everywhere provides a single form of =TCP addressing for all our tests. Different network configurations (DNS, = reverse DNS, DNS caching) still provide lots of problems and performance = issues, but there is no need to worry about which IP protocol version is = used.=95 Shorter addresses make for shorter packets, which can have a =benefit on busy networks.=20 This does not mean that the Hadoop team thinks that IPv4 is the best =ever network protocol and that there is no reason to upgrade ever, only = that it works well in datacenters.=20 (Yes, I am technically trolling. But mostly because I don't have the = energy to fight for IPv6 any more. Maybe you do?)
Most of which is just FUD. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka () isc org
Current thread:
- "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications"...., (continued)
- "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Jeroen Massar (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Joseph Holsten (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Bryan Tong (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Jared Mauch (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Owen DeLong (Nov 27)
- RE: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Dave Edelman (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Owen DeLong (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Mark Andrews (Nov 27)
- RE: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Lee Howard (Nov 28)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Mark Andrews (Nov 28)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Mark Andrews (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... david raistrick (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Mark Andrews (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... david raistrick (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Andrew Sullivan (Nov 27)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Dobbins, Roland (Nov 27)
- RE: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Tony Hain (Nov 28)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Dobbins, Roland (Nov 28)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Owen DeLong (Nov 28)
- Re: "Programmers can't get IPv6 thus that is why they do not have IPv6 in their applications".... Dobbins, Roland (Nov 30)
- Remaining IPv6 hurdles (Was: Programmers...) Jeroen Massar (Nov 30)