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From Tonci Buljan <tonci.bul...@gmail.com>
Subject Terasort problem
Date Fri, 09 Jul 2010 09:32:30 GMT
Hello everyone,

I have a cluster from 8 datanodes and a namenode.
When I start teragen program everything works OK, the data is generated. But
when I start terasort program, seems like that only 2 datanodes do the job.
And everything is so slow. I've tried with only 10 records and cluster
generated sort in few seconds, but with bigger number, it stucks around 15%.

Do you have any idea why this is so?

I'm using Hadoop 0.20.2 and Ubuntu 8.10.


Thank you.

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