February 2015
Beginner to intermediate
576 pages
16h 15m
English
Content preview from Big Data Analytics
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140 • Big Data Analytics
Zookeeper
Connects Connects
HMasterClient
Works inWorks in
Containing Containing
Containing Containing
Containing
Containing Containing
Connected to Connected to
Managing Managing
Containing
HRegion HRegion
Store
MemStore MemStoreStoreFile
HFileHFile
DFS
client
DFS
client
DataNodesDataNodes
StoreFile
Store
HRegionServe
rH
RegionServer
FIGURE4.5
HBase architecture.
HBase and Other Big Data Databases • 141
once appropriate conguration steps have occurred (e.g., using a JAR le
with the required libraries). Heavily used classes in MapReduce are:
• InputFormat
• Mapper
• Reducer
• OutputFormat
InputFormat splits the input data and returns a RecordReader ...
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