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Hadoop
From Cloudera webinar
14 cards·by philf
How many pros for Hadoop distributions?
6
Pros of distributions - 1
Stability
Pros of distributions - 2
Regular upgrades
Pros of distributions - 3
24x7 support and bug fixes
Pros of distributions - 4
Faster implementation
Pros of distributions - 5
Minimize installation risk
Pros of distributions - 6
Focus on business problems
What are Master Nodes
Control, no work
What are Worker Nodes
Storage & processing
What are Edge Nodes
gateway to data
What are the two types of HDFS nodes?
Name node & data node
List three Hadoop compute engines
Spark, Hive, Pig
What is a drawback to schema on read?
You have to read all data even if only a small subset is needed
What are the 4 V's of Big Data?
Volume, velocity, variety, verascity