http://www.michael-noll.com/blog/2011/04/09/benchmarking-and-stress-testing-an-hadoop-cluster-with-terasort-testdfsio-nnbench-mrbench/
On 12/06/2013 09:49, Pedro Sá da Costa wrote:
I am using Yarn, and
1 - I want to know the average IO throughput of the HDFS (like know
how fast the datanodes are writing in a disk) so that I can compare
beween 2 HDFS intances. The command "hdfs dfsadmin -report" doesn't
give me that. The HDFS has a command for that?
2 - and there is a similar thing to know how fast the data is being
transferred between map and reduces?
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Best regards,
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Thanks & Regards,
Bhasker Allene
