My previous hadoop example operated against the local filesystem, in spite of the fact that I formatted a local HDFS partition. In order to operate against the local HDFS partition it’s necessary to first start the namenode and datanode. I mostly followed these instructions to start those processes. Here’s the most relevant part that I hadn’t done yet. # Format the namenode hdfs namenode -format # Start the namenode hdfs namenode # Start a datanode hdfs datanode# Format the namenode hdfs namenode -format # Start the namenode hdfs namenode # Start a datanode......

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