Learning Basic Hadoop

 

Google
——
GFS
MapReduce
BigTable

Apache Hadoop
————-
HDFS
MapReduce
Apace HBase

NameNode
DataNode

replica count
hdfs-site.xml
dfs.replication

Filesystems
ext3 – Yahoo
ext4 – Google
XFS

Rack Awareness

ref : https://www.youtube.com/watch?v=ziqx2hJY8Hg

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