i686 failures

[Christopher]

I'm trying to revive rpms/hadoop, but am running into some failures[1] on
i686 in koji that I cannot reproduce locally in x86_64. The thing is... I
don't really have any good 32-bit environment to test this locally. Hadoop
isn't really suitable for 32-bit architectures (IMO) and I doubt it's a
well-tested upstream arch.

Any suggestions for how I should proceed? Is it really necessary that *all*
packages support i686 arch, even when it doesn't make sense for the
application's users?

[1]: http://koji.fedoraproject.org/koji/taskinfo?taskID=14521689