hadoop 整理

jdk安装：
https://www.linuxidc.com/Linux/2016-09/134941.htm

java下载：
http://www.oracle.com/technetwork/java/javase/downloads/index.html

hadoop
https://blog.csdn.net/hliq5399/article/details/78193113

#set java environment
JAVA_HOME=/usr/lib/jdk-10.0.1
JRE_HOME=/usr/lib/jdk-10.0.1/jre
CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
export JAVA_HOME JRE_HOME CLASS_PATH PATH

hadoop下载:
http://mirror.bit.edu.cn/apache/hadoop/common/

hadoop参考：
https://www.cnblogs.com/dxdxh/p/9015191.html

很有用http://study.163.com/course/courseLearn.htm?courseId=1003003001#/learn/video?lessonId=1003407456&courseId=1003003001
https://blog.csdn.net/a5601564/article/details/52997015
https://www.cnblogs.com/dxdxh/p/9015191.html
hadoop jar /usr/lib/hadoop/share/hadoop/mapreduce/sources/hadoop-mapreduce-examples-3.1.0-test-sources.jar org.apache.hadoop.examplesWordCount input output

 

hdfs namenode -format
/usr/lib/hadoop/sbin/start-all.sh
jps