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Hive uses Sequencefile to store data

Source: Internet
Author: User
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Sequencefile is used to store data in binary, it can be compressed, and the compressed data can be divided, can be used for mapreduce processing.
The following instance uses Sequencefile to save data for the hive table and uses compression.

set hive.exec.compress.output=true; #压缩mapreduce输出数据 set Mapreduce.output.fileoutputformat.compress.codec=org.apache.hadoop.io.compress.gzipcodec; #设置压缩算法set mapreduce.output.fileoutputformat.compress.type=block; #块级压缩




From for notes (Wiz)

Hive uses Sequencefile to store data

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