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From Allen Wittenauer ...@altiscale.com>
Subject Re: [DISCUSS] About the details of JDK-8 support
Date Wed, 14 Oct 2015 23:28:53 GMT

If people want, I could setup a cut off of yetus master to run the jenkins test-patch.  (multiple
maven repos, docker support, multijdk support, … ) Yetus would get some real world testing
out of it and hadoop common-dev could stop spinning in circles over some of the same issues
month after month. ;)


On Oct 14, 2015, at 3:05 PM, Robert Kanter <rkanter@cloudera.com> wrote:

> The only problem with trying to get the JDK 8 trunk builds green (or blue I
> guess) is that it's like trying to hit a moving target because of how many
> new commits keep coming in.  I was looking at fixing these a while ago, and
> managed to at least make them compile and fixed (or worked with others to
> fix) some of the unit tests.  I've been really busy on other tasks and
> haven't had time to continue working on this in quite a while though.
> 
> Currently, it looks like Common is still green mostly, Yarn is having a
> build failure with checkstyle, MR has between 1 and 10 test failures, and
> HDFS had between 3 and 10 test failures.
> 
> I think it's going to be difficult to get these green, and to keep them
> green, unless we get more buy in from everyone on new commits being tested
> against JDK 8.  Otherwise, it's too hard to keep up with the number of
> commits coming in, even if we do get it green.  Perhaps we could have
> test-patch also run the patch against JDK 8?
> 
> 
> - Robert
> 
> On Wed, Oct 14, 2015 at 8:27 AM, Steve Loughran <stevel@hortonworks.com>
> wrote:
> 
>> 
>>> On 13 Oct 2015, at 17:32, Haohui Mai <ricetons@gmail.com> wrote:
>>> 
>>> Just to echo Steve's idea -- if we're seriously considering supporting
>>> JDK 8, maybe the first thing to do is to set up the jenkins to run
>>> with JDK 8? I'm happy to help. Does anyone know who I can talk to if I
>>> need to play around with all the Jenkins knob?
>> 
>> Jenkins is building with JAva 7 and 8. all that's needed is to turn off
>> the Java 7 build, which I will  happily do. The POM can be changed to set
>> the minimum JVM version -though that's most likely to be visible to people
>> building locally, as you'll need to make sure that you have access to java
>> 7 and java 8 JVMs if you want to build and test for both.
>> 
>> Jenkins-wise, the big issue is one I've mentioned before: the builds are
>> failing an not enough people are caring
>> 
>> 
>> https://builds.apache.org/view/H-L/view/Hadoop/job/Hadoop-Hdfs-trunk-Java8/488/
>> 
>> Please, lets fix this
>> 
>> 


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