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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-804) Hadoop 2.0 Support
Date Tue, 26 Nov 2013 15:18:46 GMT


ASF subversion and git services commented on ACCUMULO-804:

Commit 4f7fb04b0b485377daa7d0bd0985994d1ce86173 in branch refs/heads/1.4.5-SNAPSHOT from [~busbey]
[;h=4f7fb04 ]

ACCUMULO-804 pick up the new location of the hadoop jars

git-svn-id: 13f79535-47bb-0310-9956-ffa450edef68
(cherry picked from commit 21780bd2950df7e72a8b1bd3ddef5017b07b63ad)

Reason: Hadoop2 Compat
Author: Eric C. Newton <>
Ref: ACCUMULO-1792

Skips changes to MiniAccumuloCluster that were already present in backport.

Signed-off-by: Eric Newton <>

> Hadoop 2.0 Support
> ------------------
>                 Key: ACCUMULO-804
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 1.4.3
>            Reporter: Ed Kohlwey
>            Assignee: Eric Newton
>              Labels: hackathon
>             Fix For: 1.5.0
> We should start thinking about Hadoop 2 support now that it is Cloudera's recommended
distribution and many new Hadoop users will probably be adopting it.
> When I investigated this first a few months ago it seemed like the biggest barrier to
this was that all the Map/Reduce related tests are implemented using pseudo-private constructors
from Hadoop 1.0 that are no-longer present in Hadoop 2.0.
> The main strategy to fix this should probably be to adopt the Map/Reduce cluster test
object for testing the various Accumulo input formats instead of instrumenting them directly.
I have used this convenience object successfully on tests utilizing MockInstance, so I think
it should work fine.
> There may also be some filesystem API issues but I don't think they will be too severe.
> The other main issue is that we will need to actually deploy on Hadoop 1 and 2 and run
the integration tests once we start supporting both, so that will be a headache for release
testing that we should think through.

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