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From Avery Ching <ach...@apache.org>
Subject Re: Running tests in pseudo-distributed mode
Date Sat, 17 Dec 2011 17:38:44 GMT
We should document this somewhere.  It is not intuitive as you mention.

Avery

On 12/17/11 1:41 AM, Sebastian Schelter wrote:
> A small hint for everyone who wants to run giraph's unit tests on a
> pseudo-distributed single node hadoop cluster:
>
> You have to adjust the configuration to allow 4 concurrent map tasks per
> node (default in hadoop-0.20.203 is 2), otherwise the tests will fail!
>
> You have to adjust mapred.tasktracker.map.tasks.maximum and
> mapred.map.tasks in mapred-site.xml. Took me a while to figure out :)
>
> --sebastian


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