Re: Java Versions and Hadoop

2011-10-11 Thread Steve Loughran
On 10/10/11 19:57, Scott Carey wrote: What JRE (6 update ?) is planned to be used when testing 0.23 at scale? Should JRE 7u2 also be tested? Both a new update to JRE 6 and 7 is due out very soon. 0.23 will be code complete after that. If I had enough resources and time, I'd test both the

Re: Java Versions and Hadoop

2011-10-11 Thread Steve Loughran
On 10/10/11 22:32, milind.bhandar...@emc.com wrote: I believe you mean when will it be compatible with Java 7, not require it (based on all you mention above, other than the word 'required'). Is that the case? I meant, when will I be able to use some of the JDK 7 APIs in Hadoop code ?,

Re: Java Versions and Hadoop

2011-10-11 Thread Milind.Bhandarkar
Steve, I would suggest moving up projects on the side first, layers on top, like your MPI-on-YARN stuff, where there is little or no installed base to worry about That is exactly the project for which I though some of the new I/O interfaces would reduce the amount of code, (plus auto-freed

Re: Java Versions and Hadoop

2011-10-11 Thread Arun C Murthy
MR2 supports different JVMs for user-apps. Arun On Oct 11, 2011, at 10:31 AM, milind.bhandar...@emc.com milind.bhandar...@emc.com wrote: Steve, I would suggest moving up projects on the side first, layers on top, like your MPI-on-YARN stuff, where there is little or no installed base to

Re: Java Versions and Hadoop

2011-10-11 Thread Milind.Bhandarkar
Oh, that is very interesting ! Would I have to write my own container-launcher for that ? Or does existing container launcher support it ? - Milind --- Milind Bhandarkar Greenplum Labs, EMC (Disclaimer: Opinions expressed in this email are those of the author, and do not necessarily represent

Re: Java Versions and Hadoop

2011-10-11 Thread Arun C Murthy
On Oct 11, 2011, at 11:57 AM, milind.bhandar...@emc.com milind.bhandar...@emc.com wrote: Oh, that is very interesting ! Would I have to write my own container-launcher for that ? Or does existing container launcher support it ? In MR2 the command line for the container is the AM's own

Re: Java Versions and Hadoop

2011-10-09 Thread Brian Bockelman
You know, I was looking around for Java EOL information a few weeks ago and found this: http://www.oracle.com/technetwork/java/eol-135779.html I might not be reading closely enough, but that says Java 6 is EOL in 9 months. In terms of major releases and getting things stableā€¦ that's just

Re: Java Versions and Hadoop

2011-10-09 Thread Ted Dunning
On Sun, Oct 9, 2011 at 5:49 PM, Brian Bockelman bbock...@cse.unl.eduwrote: You know, I was looking around for Java EOL information a few weeks ago and found this: http://www.oracle.com/technetwork/java/eol-135779.html I might not be reading closely enough, but that says Java 6 is EOL in 9

Re: Java Versions and Hadoop

2011-10-09 Thread Konstantin Boudnik
On Sun, Oct 09, 2011 at 07:49PM, Brian Bockelman wrote: You know, I was looking around for Java EOL information a few weeks ago and found this: http://www.oracle.com/technetwork/java/eol-135779.html I might not be reading closely enough, but that says Java 6 is EOL in 9 months. In terms

Re: Java Versions and Hadoop

2011-10-09 Thread Scott Carey
On 10/8/11 11:19 AM, Ted Dunning tdunn...@maprtech.com wrote: I hate to sound like the folks who only recently stopped using 1.4, but I am afraid that Todd is right on here. The folks who are desperate for new features are being siphoned off by Scala and Clojure which is leaving a core of

Re: Java Versions and Hadoop

2011-10-08 Thread Todd Lipcon
I think requiring Java 7 is years off... I think most people have doubts as to Java 7's stability until it's been adopted by a majority of applications, and the new features aren't compelling enough to jump ship, IMO. -Todd On Fri, Oct 7, 2011 at 3:33 PM, milind.bhandar...@emc.com wrote: Hi

Re: Java Versions and Hadoop

2011-10-08 Thread Ted Dunning
I hate to sound like the folks who only recently stopped using 1.4, but I am afraid that Todd is right on here. The folks who are desperate for new features are being siphoned off by Scala and Clojure which is leaving a core of recalcitrant termagants like me. I think that it is going to take

Java Versions and Hadoop

2011-10-07 Thread Milind.Bhandarkar
Hi Folks, While I have seen the wiki on which java versions to use currently to run Hadoop, I have not seen any discussion about the roadmap of java version compatibility with future hadoop versions. Recently, Oracle retired the Operating System Distributor License for Java (DLJ)