通过mysql操作clickhouse
mysql软件安装
至少需要安装一个mysql客户端,即要有mysql这个命令;也可以直接安装一个mysql数据库,不用可以不启动;
clickhouse服务端配置mysql端口
vim /etc/clickhouse-server/config.xml
<mysql_port>9004</mysql_port>
修改服务器端配置,需要重启clickhouse, 默认日志输出 /var/log/clickhouse-server/clickhouse-server.log
下面这种方式,需要在本地配置mysql,然后本地连接,默认省去的连接主机为localhost
[root@ch2 ~]# mysql --protocol tcp -u default -P 9004 Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 0 Server version: 20.3.9.70-ClickHouse Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> show databases; +----------+ | name | +----------+ | default | | system | | test | | tutorial | +----------+ 4 rows in set (0.01 sec) Read 4 rows, 475.00 B in 0.001 sec., 3554 rows/sec., 412.20 KiB/sec. mysql> use test; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> show tables; +------+ | name | +------+ | test | +------+ 1 row in set (0.01 sec) Read 1 rows, 26.00 B in 0.001 sec., 771 rows/sec., 19.60 KiB/sec.
同样可以创建表
mysql> create table t1(id String,name String) ENGINE=TinyLog;
Query OK, 0 rows affected (0.01 sec)
mysql> insert into t1 values('a01','');
Query OK, 1 row affected (0.00 sec)
Read 1 rows, 21.00 B in 0.004 sec., 275 rows/sec., 5.64 KiB/sec.
mysql> select * from t1;
+------+------+
| id | name |
+------+------+
| a01 | |
+------+------+
1 row in set (0.01 sec)
Read 1 rows, 21.00 B in 0.002 sec., 525 rows/sec., 10.78 KiB/sec.
密码配置
为了兼容mysql客户端,建议clickhouse使用sha1加密算法
生成密码,这个生成命令在 /etc/clickhouse-server/users.xml 注释部分,是官方给出的
# PASSWORD=$(base64 < /dev/urandom | head -c8); echo "$PASSWORD"; echo -n "$PASSWORD" \ > | sha1sum | tr -d '-' | xxd -r -p | sha1sum | tr -d '-' yOBuWUzN 1caa12e10ba19388e98b0964eb25e93128fd0ace
删除下面的标签
<password></password>
添加新标签
<password_double_sha1_hex>1caa12e10ba19388e98b0964eb25e93128fd0ace</password_double_sha1_hex>
再次连接,不需要重启clickhouse
mysql --protocol tcp -u default -P 9004 --password=yOBuWUzN
去掉密码也可以连接
mysql --protocol tcp -u default -P 9004