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Posts Tagged ‘file system’

Hadoop File System APIs

October 1st, 2012 1 comment

As mentioned in my previous post on Hadoop File System commands, the commands are built on top of the HDFS APIs. These APIs are defined in the org.apache.hadoop.fs package, including several interfaces and over 20 classes, enums, and exceptions (the number of interfaces and classes varied from release to release).

As always, it’s best to start with a sample code while learning new APIs. The following sample copies a file from local file system to HDFS.

Categories: Big Data Tags: , ,

Hadoop File System Commands

September 26th, 2012 4 comments

I just took a Hadoop developer training in the week of September 10. To me, Hadoop is not totally new as I’ve tried HelloWorld sample and Serengeti project. Still, I found it’s nice to get away from daily job and go through a series of lectures and hands-on labs in a training setting. Believe it or not, I felt more tired after training than a typical working day. This post is not much new but just helps me on the commands when needed later.

Categories: Big Data Tags: , ,