Re: Hadoop - Major releases

2015-03-17 Thread Colin P. McCabe
Thanks, Andrew and Joep. +1 for maintaining wire and API compatibility, but moving to JDK8 in 3.0 best, Colin On Mon, Mar 16, 2015 at 3:22 PM, Andrew Wang wrote: > I took the liberty of adding line breaks to Joep's mail. > > Thanks for the great feedback Joep. The goal with 3.x is to maintain A

Re: Hadoop - Major releases

2015-03-16 Thread Andrew Wang
I took the liberty of adding line breaks to Joep's mail. Thanks for the great feedback Joep. The goal with 3.x is to maintain API and wire compatibility with 2.x, which I think addresses most of your concerns. A 2.x client running on JDK7 would then still be able to talk to a 3.x server running on

Re: Hadoop - Major releases

2015-03-09 Thread Andrew Wang
Hi Mayank, > 1. We would be moving to Hadoop -3 (Not this year though) however I don't > see we can do another JDK upgrade so soon. So the point I am trying to make > is we should be supporting jdk 7 as well for Hadoop-3. > > We'll still be releasing 2.x releases for a while, with similar feature

Re: Hadoop - Major releases

2015-03-09 Thread Mayank Bansal
Hi Andrew, I wish things are as simple as you are pointing out. At least they are not for us so far. Couple of things 1. We would be moving to Hadoop -3 (Not this year though) however I don't see we can do another JDK upgrade so soon. So the point I am trying to make is we should be supporting j

Re: Hadoop - Major releases

2015-03-09 Thread Andrew Wang
Hi Mayank, Note that Hadoop 3 does not mean the end of updates for Hadoop 2.x, which will keep supporting JDK7 for a while yet. Someone on the original thread also proposed keeping Hadoop 3 JDK7-source compatible to make backports to 2.x easier. I support this. Note also that the jump from Hadoop

Re: Hadoop - Major releases

2015-03-09 Thread Mayank Bansal
Hi Guys, >From my prospective @ ebay we are not going to upgrade to JDK 8 any time soon we just upgraded to 7 and not want to move further at least this year so I will request you guys not to drop the support for JDK 7 as that would be very crucial for us to move forward. We also just completed o

Hadoop - Major releases

2015-03-09 Thread Arun Murthy
Over the last few days, we have had lots of discussions that have intertwined several major themes: # When/why do we make major Hadoop releases? # When/how do we move to major JDK versions? # To a lesser extent, we have debated another theme: what do we do about trunk? For now, let's park