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MapReduce >> mail # user >> HDFS metrics


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Pedro Sá da Costa 2013-06-12, 08:49
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Re: HDFS metrics
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 S� 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?
> --
> Best regards,

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Thanks & Regards,
Bhasker Allene