CDH installation is complete
2. Add parcel
HDFS configuration
Search for " compression codec " in the HDFS configuration item and add com.hadoop.compression.lzo.LzopCodec
Search for " Hive auxiliary JAR directory " in Hive configuration items, and add /opt/cloudera/parcels/GPLEXTRAS/lib/hadoop/lib
Sqoop configuration sqoop-conf / sqoop-env.sh of Sqoop 1 Client client code segment Advanced Configuration (safety)
HADOOP_CLASSPATH=$HADOOP_CLASSPATH:/opt/cloudera/parcels/GPLEXTRAS/lib/hadoop/lib/*
JAVA_LIBRARY_PATH=$JAVA_LIBRARY_PATH:/opt/cloudera/parcels/GPLEXTRAS/lib/hadoop/lib/native
yarn configuration
Search for " yarn.nodemanager.resource.memory-mb " in the yarn configuration item and modify it to 4G .
Search for " yarn.scheduler.maximum-allocation-mb " in the yarn configuration item and modify it to 2G .