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Date: Thu, 24 Oct 2013 12:35:08 -0400
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 <CAGUtCHqOJ+au=WZ2tLgroJHOWp7e-wrtnG13FxOAA=qr5KF9xw@mail.gmail.com>
Subject: Re: [DISCUSS] Hadoop 2 and Accumulo 1.6.0
From: Keith Turner <keith@deenlo.com>
To: user@accumulo.apache.org
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On Wed, Oct 23, 2013 at 7:05 PM, Josh Elser <josh.elser@gmail.com> wrote:

> To ensure that we get broader community interaction than only on a Jira
> issue [1], I want to get community feedback about the version of Hadoop
> which the default, deployed Accumulo artifacts will be compiled against.
>

Does Accumulo compiled against Hadoop-1 run against Hadoop-2 w/o
recompilation or visa versa?  If this does not work, then I suppose the
jars we put into central will not work for some users.


>
> Currently, Accumulo builds against a Hadoop-1 series release
> (1.5.1-SNAPSHOT and 1.6.0-SNAPSHOT build against 1.2.1, and 1.5.0 builds
> against 1.0.4). Last week, the Apache Hadoop community voted to release
> 2.2.0 as GA (general availability) -- in other words, the Apache Hadoop
> community is calling Hadoop-2.2.0 "stable".
>
> As has been discussed across various issues on Jira, this means a few
> different things for Accumulo. Most importantly, this serves as a
> recommendation by us that users should be trying to use Hadoop-2.2.0 with
> Accumulo 1.6.0. This does *not* mean that we do not support Hadoop1 ([2]
> 1.2.1 specifically). Hadoop-1 support would still be "guaranteed" by us for
> 1.6.0.
>
> - Josh
>
> [1] https://issues.apache.org/**jira/browse/ACCUMULO-1419<https://issues.apache.org/jira/browse/ACCUMULO-1419>
> [2] https://issues.apache.org/**jira/browse/ACCUMULO-1643<https://issues.apache.org/jira/browse/ACCUMULO-1643>
>

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><br><div class=3D"gmail=
_quote">On Wed, Oct 23, 2013 at 7:05 PM, Josh Elser <span dir=3D"ltr">&lt;<=
a href=3D"mailto:josh.elser@gmail.com" target=3D"_blank">josh.elser@gmail.c=
om</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">To ensure that we get broader community inte=
raction than only on a Jira issue [1], I want to get community feedback abo=
ut the version of Hadoop which the default, deployed Accumulo artifacts wil=
l be compiled against.<br>
</blockquote><div><br></div><div style>Does Accumulo compiled against Hadoo=
p-1 run against Hadoop-2 w/o recompilation or visa versa? =A0If this does n=
ot work, then I suppose the jars we put into central will not work for some=
 users.</div>
<div>=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;=
border-left:1px #ccc solid;padding-left:1ex">
<br>
Currently, Accumulo builds against a Hadoop-1 series release (1.5.1-SNAPSHO=
T and 1.6.0-SNAPSHOT build against 1.2.1, and 1.5.0 builds against 1.0.4). =
Last week, the Apache Hadoop community voted to release 2.2.0 as GA (genera=
l availability) -- in other words, the Apache Hadoop community is calling H=
adoop-2.2.0 &quot;stable&quot;.<br>

<br>
As has been discussed across various issues on Jira, this means a few diffe=
rent things for Accumulo. Most importantly, this serves as a recommendation=
 by us that users should be trying to use Hadoop-2.2.0 with Accumulo 1.6.0.=
 This does *not* mean that we do not support Hadoop1 ([2] 1.2.1 specificall=
y). Hadoop-1 support would still be &quot;guaranteed&quot; by us for 1.6.0.=
<br>

<br>
- Josh<br>
<br>
[1] <a href=3D"https://issues.apache.org/jira/browse/ACCUMULO-1419" target=
=3D"_blank">https://issues.apache.org/<u></u>jira/browse/ACCUMULO-1419</a><=
br>
[2] <a href=3D"https://issues.apache.org/jira/browse/ACCUMULO-1643" target=
=3D"_blank">https://issues.apache.org/<u></u>jira/browse/ACCUMULO-1643</a><=
br>
</blockquote></div><br></div></div>

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