Re: IPv6 Feature branch

2015-08-24 Thread Elliott Clark
Dhruba's off in a different timezone. So he might not be able to. I'll ask
though.

Nate, I, and Nemanja will be working on this. We're really hoping the patch
will be living for just a few weeks or a month at most.
Hopefully a good deal of the code we write will be testable so that will
result in some good clean up. Though it won't be a primary top line goal.

On Wed, Aug 19, 2015 at 6:34 PM, Steve Loughran ste...@hortonworks.com
wrote:


 +1 for a branch; ideally not too long lived. Dhruba still has commit
 rights, perhaps he could be persuaded to help with it.

 If you look at the Hadoop code, it's not just network assumptions, it's
 fairly brittle to bad network setup -and not helpful when these situations
 arise. What could be good as part of this/a slideline is to have some entry
 point where you can probe network setup, failing fast (with an error code)
 if a condition isn't met (e.g. the JVM doesn't get an IPv6 address, or its
 address doesn't match that you get when you look up the hostname)

  On 17 Aug 2015, at 17:04, Elliott Clark ecl...@apache.org wrote:
 
  Nate (nkedel) and I have been working on IPv6 on Hadoop and HBase lately.
  We're getting somewhere but there are a lot of different places that make
  assumptions about network. That means there will be a good deal of follow
  on patches as we find more and more places that need some TLC.
 
  Would a feature branch be good here so that we can move quickly without
  hurting stability until all of the issues are done?
 
  Thoughts? Comments?
 
  Thanks




Re: IPv6 Feature branch

2015-08-19 Thread Colin McCabe
+1, would be great to see Hadoop get ipv6 support.

Colin

On Mon, Aug 17, 2015 at 5:04 PM, Elliott Clark ecl...@apache.org wrote:
 Nate (nkedel) and I have been working on IPv6 on Hadoop and HBase lately.
 We're getting somewhere but there are a lot of different places that make
 assumptions about network. That means there will be a good deal of follow
 on patches as we find more and more places that need some TLC.

 Would a feature branch be good here so that we can move quickly without
 hurting stability until all of the issues are done?

 Thoughts? Comments?

 Thanks


Re: IPv6 Feature branch

2015-08-19 Thread Chris Douglas
+1

I don't suppose you could be conned into fixing multi-NIC and other
networking issues also? ;)

Do you have a list of contributors who plan to work on this feature? -C

On Mon, Aug 17, 2015 at 5:04 PM, Elliott Clark ecl...@apache.org wrote:
 Nate (nkedel) and I have been working on IPv6 on Hadoop and HBase lately.
 We're getting somewhere but there are a lot of different places that make
 assumptions about network. That means there will be a good deal of follow
 on patches as we find more and more places that need some TLC.

 Would a feature branch be good here so that we can move quickly without
 hurting stability until all of the issues are done?

 Thoughts? Comments?

 Thanks


Re: IPv6 Feature branch

2015-08-19 Thread Steve Loughran

+1 for a branch; ideally not too long lived. Dhruba still has commit rights, 
perhaps he could be persuaded to help with it.

If you look at the Hadoop code, it's not just network assumptions, it's fairly 
brittle to bad network setup -and not helpful when these situations arise. What 
could be good as part of this/a slideline is to have some entry point where you 
can probe network setup, failing fast (with an error code) if a condition isn't 
met (e.g. the JVM doesn't get an IPv6 address, or its address doesn't match 
that you get when you look up the hostname)

 On 17 Aug 2015, at 17:04, Elliott Clark ecl...@apache.org wrote:
 
 Nate (nkedel) and I have been working on IPv6 on Hadoop and HBase lately.
 We're getting somewhere but there are a lot of different places that make
 assumptions about network. That means there will be a good deal of follow
 on patches as we find more and more places that need some TLC.
 
 Would a feature branch be good here so that we can move quickly without
 hurting stability until all of the issues are done?
 
 Thoughts? Comments?
 
 Thanks



Re: IPv6 Feature branch

2015-08-17 Thread Karthik Kambatla
Absolutely.

On Mon, Aug 17, 2015 at 5:04 PM, Elliott Clark ecl...@apache.org wrote:

 Nate (nkedel) and I have been working on IPv6 on Hadoop and HBase lately.
 We're getting somewhere but there are a lot of different places that make
 assumptions about network. That means there will be a good deal of follow
 on patches as we find more and more places that need some TLC.

 Would a feature branch be good here so that we can move quickly without
 hurting stability until all of the issues are done?

 Thoughts? Comments?

 Thanks