安装部署部署方式#Docker Compose#Docker Swarm#Kubernetes#数据冗余#安全#3.3 删除已安装的 Percona MySQL 5.6 ( 参考 )## 和端口有关, 如果是 3306, 那就是 mysql_3306service mysql_33060 stop && systemctl disable mysql_33060 && \rpm -e Percona-Server-server-56-5.6.48 Percona-Server-client-56-5.6.48 Percona-Server-shared-56-5.6.48 && \rm -rf /data/mysql/Copy3.4 删除已安装的 Elasticsearch 6.8 ( 参考 )## or kill `pidof java`service elasticsearch_answer stop && systemctl disable elasticsearch_answer && sleep 3 && \userdel elasticsearch && rm -rf /data/elasticsearch_answer/Copy