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Hadoop >> mail # dev >> Apache Hadoop works with IPv6?


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Re: Apache Hadoop works with IPv6?
Thanks a lot, Daryn.
Do you have any JIRA issue for this work?
It would be nice to work on this.

Regards

On 03/22/2012 03:02 PM, Daryn Sharp wrote:
> Hi Marcos,
>
> Hadoop won't work in a pure IPv6 environment.  Hadoop might work in a IPv4/IPv6 environment since the default is to prefer IPv4 addresses.  It also might work if they are publishing IPv4 addrs over IPv6.
>
> The main problem is that hadoop heavily relies on strings containing "ip:port".  The string is naively parsed to split on the first colon which obviously isn't going to work on IPv6 addresses since they contain colons.
>
> Awhile back I updated some common apis with IPv6 support in mind -- the support isn't complete though.  Bad news: there are quite a number of places throughout hadoop not using the apis.  Good news: For other reasons, I'm currently fixing many of those places to use the apis.  After that work is complete, enabling IPv6 support might be within relatively easy to moderate reach.
>
> Daryn
>
>
> On Mar 21, 2012, at 4:45 PM, Marcos Ortiz wrote:
>
>> Regards.
>> I'm very interested to know if Apache Hadoop works with IPv6 hosts. One
>> of my clients
>> has some hosts with this feature and they want to know if Hadoop
>> supports this.
>> Anyone has tested this?
>>
>> Best wishes
>>
>>

--
Marcos Luis Ort�z Valmaseda (@marcosluis2186)
  Data Engineer at UCI
  http://marcosluis2186.posterous.com

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