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From Sean Owen <>
Subject Re: Fwd: PCA with ssvd leads to StackOverFlowError
Date Wed, 05 Mar 2014 17:03:21 GMT
CDH 4.5 and 4.6 are both 0.7 + patches. Neither contains 0.8, since it
has (tiny) breaking changes vs 0.7 and this is a minor version update.
CDH5 contains 0.8 + patches. I did not say CDH4 has 0.8 -- re-read the
message of mine that was quoted.

Those two patches are not in CDH 4.x, no.

The non-upstream changes are basically all internal packaging stuff,
and that can include modifying dependency versions to harmonize with
the rest of the platform. That's the sense in which it works with
Hadoop 2.

I don't think the change you cite is sufficient to work with Hadoop 2.
You also, for example, must build against the Hadoop 2 profile in
Mahout in Maven. For that you do not need the CDH repo even, just
point to the Hadoop 2.x release if you like.

I know there has been a patch in even just the past few weeks that
makes it work even better with 2.x. So I suppose I would build from
HEAD if possible to take advantage.

On Wed, Mar 5, 2014 at 4:30 PM, Suneel Marthi <> wrote:
> Not sure if the CDH4 patches on top of 0.7 has fixes for M-1067 and M-1098 which address
the issues u r seeing.
> The second part of the issue u r seeing with Mahout 0.9 distro seems to be related to
how u set it up on CDH4. I apologize for not being helpful here as I am not a CDH4 user or
> Sean?

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