Question: how to use lzo compression in hadoop?
Answer: Configuring LZO compression in Hadoop Now you need to configure LZO and hadoop-lzo jar in Hadoop environment. Update the configuration file $HADOOP_INSTALLATION_DIR/etc/hadoop/core-site. xml to register LZO codecs. Copy hadoop-lzo jar to /share/hadoop/mapreduce/lib in your $HADOOP_INSTALLATION_DIR.