一键式完全删除CDH 6.3.1

用户1148526

发布于 2019-11-12 17:22:25

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发布于 2019-11-12 17:22:25

本文链接：https://blog.csdn.net/wzy0623/article/details/102946646

CDH集群的安装部署虽然步骤比较多，但只要严格按照文档操作，一般不会有太大问题。然而，如果安装过程中出错，或因为其它原因需要重新安装CDH，在不重装操作系统的前提下，是比较困难的。难点在于需要删除的东西太多，不删干净了非常容易造成安装失败。网上找的所谓“CDH完全卸载”其实都不够完全。经过一天的反复尝试，终于写了一个一键式删除CDH脚本，在我自己的测试环境下是可行的。删除脚本文件remove_cloudera.sh内容如下：

#!/bin/bash

# 停止CM服务
service cloudera-scm-server stop
service cloudera-scm-agent stop

# 卸载CM软件包
yum -y remove cloudera-manager-daemons cloudera-manager-agent cloudera-manager-server

# 卸载装载点
umount cm_processes
umount cm_processes
umount cm_processes

# 删除文件
rm -rf /var/log/*
rm -rf /opt/cloudera*
rm -rf /etc/systemd/system/multi-user.target.wants/cloudera*
rm -rf /etc/default/cloudera*
rm -rf /etc/cloudera*
rm -rf /var/lib/cloudera*
rm -rf /var/log/cloudera*
rm -rf /usr/lib/systemd/system/cloudera*
rm -rf /run/cloudera*
rm -rf /sys/fs/cgroup/systemd/system.slice/cloudera*
rm -rf /etc/security/limits.d/cloudera*
rm -rf /var/lib/yum/repos/x86_64/7/cloudera*
rm -rf /var/cache/yum/x86_64/7/cloudera*
rm -rf /tmp/*

rm -rf /var/lib/hadoop-* 
rm -rf /var/lib/impala 
rm -rf /var/lib/solr 
rm -rf /var/lib/zookeeper 
rm -rf /var/lib/hue 
rm -rf /var/lib/oozie 
rm -rf /var/lib/pgsql 
rm -rf /var/lib/sqoop2 
rm -rf /data/dfs/  
rm -rf /data/impala/ 
rm -rf /data/yarn/  
rm -rf /dfs/ 
rm -rf /impala/ 
rm -rf /yarn/  
rm -rf /var/run/hadoop-*/ 
rm -rf /var/run/hdfs-*/ 
rm -rf /usr/bin/hadoop* 
rm -rf /usr/bin/zookeeper* 
rm -rf /usr/bin/hbase* 
rm -rf /usr/bin/hive* 
rm -rf /usr/bin/hdfs 
rm -rf /usr/bin/mapred 
rm -rf /usr/bin/yarn 
rm -rf /usr/bin/sqoop* 
rm -rf /usr/bin/oozie 
rm -rf /etc/hadoop* 
rm -rf /etc/zookeeper* 
rm -rf /etc/hive* 
rm -rf /etc/hue 
rm -rf /etc/impala 
rm -rf /etc/sqoop* 
rm -rf /etc/oozie 
rm -rf /etc/hbase* 
rm -rf /etc/hcatalog 

rm -rf /var/lib/alternatives/impala-conf
rm -rf /var/lib/alternatives/impalad
rm -rf /var/lib/alternatives/impala-collect-diagnostics
rm -rf /var/lib/alternatives/impala-shell
rm -rf /var/lib/alternatives/impala-collect-minidumps

rm -rf /etc/alternatives/impala-shell
rm -rf /etc/alternatives/impalad
rm -rf /etc/alternatives/impala-collect-diagnostics
rm -rf /etc/alternatives/impala-conf
rm -rf /etc/alternatives/impala-collect-minidumps

rm -rf /var/log/impala*

rm -rf /var/lib/alternatives/zookeeper-client
rm -rf /var/lib/alternatives/zookeeper-server
rm -rf /var/lib/alternatives/zookeeper-conf
rm -rf /var/lib/alternatives/zookeeper-server-initialize
rm -rf /var/lib/alternatives/zookeeper-server-cleanup
rm -rf /var/lib/alternatives/zookeeper-security-migration

rm -rf /etc/alternatives/zookeeper-conf
rm -rf /etc/alternatives/zookeeper-server
rm -rf /etc/alternatives/zookeeper-server-cleanup
rm -rf /etc/alternatives/zookeeper-server-initialize
rm -rf /etc/alternatives/zookeeper-security-migration
rm -rf /etc/alternatives/zookeeper-client
rm -rf /var/log/zookeeper

# 重建数据库
mysql -uroot -p123456 -e "drop database if exists scm;drop database if exists hive;drop database if exists oozie;drop database if exists hue;create database scm DEFAULT CHARACTER SET utf8;create database hive DEFAULT CHARACTER SET utf8;create database oozie DEFAULT CHARACTER SET utf8;create database hue DEFAULT CHARACTER SET utf8;"

# 删除用户和组
userdel -r cloudera-scm
userdel -r ambari-qa  
userdel -r appmon  
userdel -r falcon  
userdel -r gpadmin  
userdel -r hcat  
userdel -r hive        
userdel -r kafka  
userdel -r mapred     
userdel -r spark  
userdel -r tez   
userdel -r yarn      
userdel -r zookeeper
userdel -r ams        
userdel -r atlas   
userdel -r flume   
userdel -r hbase    
userdel -r hdfs  
userdel -r infra-solr  
userdel -r livy   
userdel -r mongodb  
userdel -r oozie  
userdel -r sqoop  
userdel -r zeppelin
userdel -r impala
userdel -r kudu
userdel -r hadoop

groupdel hadoop
groupdel cloudera-scm
groupdel ambari-qa  
groupdel appmon  
groupdel falcon  
groupdel gpadmin  
groupdel hcat  
groupdel hive        
groupdel kafka  
groupdel mapred     
groupdel spark  
groupdel tez   
groupdel yarn      
groupdel zookeeper
groupdel ams        
groupdel atlas   
groupdel flume   
groupdel hbase    
groupdel hdfs  
groupdel infra-solr  
groupdel livy   
groupdel mongodb  
groupdel oozie  
groupdel sqoop  
groupdel zeppelin
groupdel impala
groupdel kudu

# 删除其它节点上的CDH
ssh root@172.16.1.125 /root/remove_cloudera.sh
ssh root@172.16.1.126 /root/remove_cloudera.sh
ssh root@172.16.1.127 /root/remove_cloudera.sh

说明：