Build failed in Jenkins: Hadoop-Common-0.23-Build #1079

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Running org.apache.hadoop.io.TestBloomMapFile
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Running 

Re: Time to address the Guava version problem

[Karthik Kambatla]

Upgrading Guava version is tricky. While it helps in many cases, it can
break existing applications/deployments. I understand we do not have a
policy for updating dependencies, but still we should be careful with
Guava.

I would be more inclined towards a more permanent solution to this problem
- how about prioritizing classpath isolation so applications aren't
affected by Hadoop dependency updates at all? I understand that will also
break user applications, but it might be the driving feature for Hadoop
3.0?

On Fri, Sep 19, 2014 at 5:13 PM, Sangjin Lee sj...@apache.org wrote:

 I would also agree on upgrading guava. Yes I am aware of the potential
 impact on customers who might rely on hadoop bringing in guava 11. However,
 IMHO the balance tipped over to the other side a while ago; i.e. I think
 there are far more people using guava 16 in their code and scrambling to
 make things work than the other way around.

 On Thu, Sep 18, 2014 at 2:40 PM, Steve Loughran ste...@hortonworks.com
 wrote:

  I know we've been ignoring the Guava version problem, but HADOOP-10868
  added a transitive dependency on Guava 16 by way of Curator 2.6.
 
  Maven currently forces the build to use Guava 11.0.2, but this is hiding
 at
  compile timeall code paths from curator which may use classes  methods
  that aren't there.
 
  I need curator for my own work (2.4.1  Guava 14.0 was what I'd been
  using), so don't think we can go back.
 
  HADOOP-11102 covers the problem -but doesn't propose a specific solution.
  But to me the one that seems most likely to work is: update Guava
 
  -steve
 
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