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2025-05-01 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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Shulou(Shulou.com)06/03 Report--
The three major component functions of hadoop:
Common:
Tools, foundations, for services
MapReduce:
The processing of massive data
Distributed system
Thought
divide and rule
Big data set is divided into small data sets.
Each data set, dedicated logic business processing map
Merge statistics results reduce
HDFS:
Store huge amounts of data
Distributed system
Security.
Copy data
Data is stored in the form of block
NameNode
Memory
Local disk
Fsp_w_picpath: mirror fil
Edites: Editing log
YARN:
Distributed resource management framework
Manage the resources of the entire cluster (memory, cpu cores)
Allocate the resources of the scheduling cluster
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Continue with the installation of the previous hadoop.First, install zookooper1. Decompress zookoope
"Every 5-10 years, there's a rare product, a really special, very unusual product that's the most un
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