Hadoop (Hadoop Distributed File System)

Hadoop is an open-source software framework for storing data and running applications on clusters of commodity hardware. It provides massive storage for any kind of data, enormous processing power and the ability to handle virtually limitless concurrent tasks or jobs.Apache Hadoop was born out of a need to process an avalanche of big data.
hadoop min. req.
who invented hadoop
hadoop LogWritable
hadoop Flume
Sqoop hadoop
apache oozie
hadoop hue
component of hadoop
hadoop daemons
hadoop ecosystem
5"V" of Big Data
pig and hive
HDFS
IOT
hardware required in IOT
MapReduce
Big Data Analytics
Spark
hadoop fs commands

hadoop copytolocal
software defined networking-sdn
hadoop CopyFromLocal
hadoo fs -cat
hadoop fs -ls
hadoop fs -put
hadoop fs -getmerge
hadoop fs -count
hadoop fs -appendToFile
hadoop fs -text
hadoop fs -du
hadoop fs -put
hadoop fs -chmod