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Posted to common-user@hadoop.apache.org by Niels Boldt <ni...@gmail.com> on 2011/07/01 15:07:32 UTC

Re: error in reduce task

Hi Steve


> I'd assume that one machine in the cluster doesn't have an /etc/hosts entry
> to worker1, or that the DNS server is suffering under load. If you can, put
> the host lists into the /etc/hosts table instead of relying on DNS. If you
> do it on all machines, it avoids having to work out which one is playing up.
> That said, some better logging of which host is trying to make the
> connection would be nice
>

Thanks for your answer, it was actually a wrongly configured /etc/hosts file
that was the problem, so you pointed me in the absolute correct direction
:-)

Best Regards
Niels

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