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Re: Difference between HDFS_BYTES_READ and the actual size of input files - Hadoop - [mail # user]
...Jeff,   Probably because records are split across blocks, so some of the data has to be read twice. Assuming you have a 64 MB block size and 128 GB of data, I'd estimate the overhead at...
   Author: Jeffrey Buell, 2013-03-06, 19:12
Re: Format the harddrive - Hadoop - [mail # user]
...What make and model are these machines? What is the storage controller? You may need to go into the storage configuration tool during hardware boot and look at how the controller has configu...
   Author: Jeffrey Buell, 2013-02-25, 22:40
Re: Estimating disk space requirements - Hadoop - [mail # user]
...I disagree. There are some significant advantages to using "many small nodes" instead of "few big nodes". As Ted points out, there are some disadvantages as well, so you have to look at the ...
   Author: Jeffrey Buell, 2013-01-19, 01:01
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB