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From "Josh Elser (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-1793) Update Hadoop 2.0 profile to Hadoop 2.2.0
Date Wed, 27 Nov 2013 15:53:41 GMT


Josh Elser commented on ACCUMULO-1793:

bq. Hadoop 0.20 is part of the Hadoop 1.0 line

Blarg. Ok, this is just me being stupid. Blah blah, old hadoop versioning, blah blah.

bq. Which part feels glued on?

So, when we released 1.5, we started this practice of having the hadoop-1 and hadoop-2 profile
which compiled against "good" versions of Hadoop for each line (read as: most recent "stable-ish").
Presently in 1.5 and beyond, this gives us hadoop-1->1.2.1 and hadoop-2->2.2.0.

With the introduction of these profiles back in the 1.4 series, which previously only knew
about, it's the same but different. Suddenly, if someone knows what we do in almost
two major releases (1.5 and 1.6), and perform the same action (-Dhadoop.profile=1.0), they
aren't going to compile against 1.2.1. It just doesn't sit right to me for 1) the 5th point
release to suddenly have different build action than the previous 4, and 2) equivalently named
build actions that do different things.

That being said, I'm not even sure I like the patch I attached here to clarify things (pretty
much why I didn't just commit it). I'm not sure what would be best. Like you said, with hadoop-0.20
being a part of "hadoop 1", but the "hadoop 1" profile using a version of hadoop in the 1.x
series in 1.5, we're going to stomp on some approach we previously took. I haven't come up
with anything that seems more straightforward yet.

> Update Hadoop 2.0 profile to Hadoop 2.2.0
> -----------------------------------------
>                 Key: ACCUMULO-1793
>                 URL:
>             Project: Accumulo
>          Issue Type: Sub-task
>    Affects Versions: 1.4.4, 1.5.0
>            Reporter: Sean Busbey
>            Assignee: Sean Busbey
>         Attachments: 0001-ACCUMULO-1793-Changes-that-to-make-semi-sane-build-p.patch,
> now that Hadoop 2 has a GA release, update the Hadoop 2.0 profile to target it.

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