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CDH5.15.2安装过程中默认是jdk1.7,但是很多程序是jdk1.8开发的,所以,还是替换jdk1.8方便一些。
1.自定义安装JDK,并配置环境变量/etc/profile。
默认已会,否则参考:
https://blog.csdn.net/u010886217/article/details/834793802.通过cm关闭所有服务
3.命令行关闭cloudera manager server
[root@cdh1 bin]# systemctl stop cloudera-scm-server
4.在Cloudera Manager Server主机修改/etc/default/cloudera-scm-server
[root@cdh1 bin]# vi /etc/default/cloudera-scm-server
添加 export JAVA_HOME=/opt/module/jdk1.8.0_1515.启动Cloudera Manager Server
[root@cdh1 bin]# systemctl start cloudera-scm-server
6.设置每个节点Java Home Directory
(1)选择每个节点
(2)添加Java Home Directory目录
7.重启所有服务1.https://blog.csdn.net/wflh323/article/details/87297435
2.https://blog.csdn.net/mamls/article/details/78268064?utm_source=blogxgwz3