You can not modified data once stored in hdfs because hdfs follows Write Once Read Many model. You can only append the data once stored in hdfs.
The sole purpose of the virtual machine ...READ MORE
Hadoop put & appendToFile only reads standard ...READ MORE
No, you cannot download HDFS alone because ...READ MORE
Simply make call to server and parse ...READ MORE
Can use pipe from wget to hdfs.
You ...READ MORE
Firstly you need to understand the concept ...READ MORE
org.apache.hadoop.mapred is the Old API
org.apache.hadoop.mapreduce is the ...READ MORE
copy command can be used to copy files ...READ MORE
In your case there is no difference ...READ MORE
Namenodes and Datanodes are a part of ...READ MORE