hive启用压缩

<property>
<name>hive.exec.compress.intermediate</name>
<value>true</value>
</property>
<property>
<name>mapreduce.map.output.compress</name>
<value>true</value>
</property>
<property>
<name>mapreduce.map.output.compress.codec</name>
<value>org.apache.hadoop.io.compress.SnappyCodec</value>
</property>

 

修改 hive-site.xml