设置ClickHouse默认用户default的密码

1、明文密码

（1）查找user.xml文件

[root@elastic1 app]# cd /etc/clickhouse-server/
[root@elastic1 clickhouse-server]# ll
total 40
drwxr-xr-x 2 root root  4096 Sep 11 13:39 config.d
-rw-r--r-- 1 root root 22601 Sep 11 13:45 config.xml
lrwxrwxrwx 1 root root    41 Sep 11 13:39 preprocessed -> /var/lib/clickhouse//preprocessed_configs
drwxr-xr-x 2 root root  4096 Sep 11 13:39 users.d
-rw-r--r-- 1 root root  5190 May 19 00:26 users.xml
[root@elastic1 clickhouse-server]# vi users.xml

（2）修改密码

    
        
        
            
            123456

（3）重启服务

[root@elastic1 clickhouse-server]# systemctl restart clickhouse-server

2、SHA256密码

（1）SHA256加密
例如对密码123456进行SHA256加密

[root@elastic1 clickhouse-server]# echo -n 123456 | openssl dgst -sha256
(stdin)= 8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92
[root@elastic1 clickhouse-server]#

（2）修改default用户密码

    
    
        
        
            
            
            8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92

（3）重启服务