(1)Linux下安装mycat
1.上传 Mycat-server-1.6.7.1-release-20190627191042-linux.tar.gz 到/opt
2.解压 Mycat-server-1.6.7.1-release-20190627191042-linux.tar.gz
tar -zxvf Mycat-server-1.6.7.1-release-20190627191042-linux.tar.gz3.将 mycat 移动到 /usr/local/
mv mycat /usr/local/4.修改 /usr/local/mycat/conf/server.xml 配置文件
修改用户信息，与MySQL区分
zan123456
TESTDB
5.修改 /usr/local/mycat/conf/schema.xml
删除
select user()
6.验证mycat的机子能否访问mysql
mysql -uroot -pZan_123456 -h 172.16.94.131 -P 3306
7.启动mycat 在 /usr/local/mycat/bin/ 目录下
①控制台启动 ：
./mycat console
②后台启动
./mycat start
8.1 登录后台管理窗口
[root@shuidi01 mysql]# mysql -umycat -pzan123456 -P 9066 -h 127.0.0.1
mysql> show database;
+----------+
| DATABASE |
+----------+
| TESTDB |
+----------+
1 row in set (0.00 sec)
mysql> show @@help;
+--------------------------------------------------------------+--------------------------------------------+
| STATEMENT | DESCRIPTION |
+--------------------------------------------------------------+--------------------------------------------+
| show @@time.current | Report current timestamp |
| show @@time.startup | Report startup timestamp |
| show @@version | Report Mycat Server version |
| show @@server | Report server status |
| show @@threadpool | Report threadPool status |
| show @@database | Report databases |
| show @@datanode | Report dataNodes |
| show @@datanode where schema = ? | Report dataNodes |
| show @@datasource | Report dataSources |
| show @@datasource where dataNode = ? | Report dataSources |
| show @@datasource.synstatus | Report datasource data synchronous |
| show @@datasource.syndetail where name=? | Report datasource data synchronous detail |
| show @@datasource.cluster | Report datasource galary cluster variables |
| show @@processor | Report processor status |
| show @@command | Report commands status |
| show @@connection | Report connection status |
| show @@cache | Report system cache usage |
| show @@backend | Report backend connection status |
| show @@session | Report front session details |
| show @@connection.sql | Report connection sql |
| show @@sql.execute | Report execute status |
| show @@sql.detail where id = ? | Report execute detail status |
| show @@sql | Report SQL list |
| show @@sql.high | Report Hight Frequency SQL |
| show @@sql.slow | Report slow SQL |
| show @@sql.resultset | Report BIG RESULTSET SQL |
| show @@sql.sum | Report User RW Stat |
| show @@sql.sum.user | Report User RW Stat |
| show @@sql.sum.table | Report Table RW Stat |
| show @@parser | Report parser status |
| show @@router | Report router status |
| show @@heartbeat | Report heartbeat status |
| show @@heartbeat.detail where name=? | Report heartbeat current detail |
| show @@slow where schema = ? | Report schema slow sql |
| show @@slow where datanode = ? | Report datanode slow sql |
| show @@sysparam | Report system param |
| show @@syslog limit=? | Report system mycat.log |
| show @@white | show mycat white host |
| show @@white.set=?,? | set mycat white host,[ip,user] |
| show @@directmemory=1 or 2 | show mycat direct memory usage |
| show @@check_global -SCHEMA= ? -TABLE=? -retry=? -interval=? | check mycat global table consistency |
| switch @@datasource name:index | Switch dataSource |
| kill @@connection id1,id2,... | Kill the specified connections |
| stop @@heartbeat name:time | Pause dataNode heartbeat |
| reload @@config | Reload basic config from file |
| reload @@config_all | Reload all config from file |
| reload @@route | Reload route config from file |
| reload @@user | Reload user config from file |
| reload @@sqlslow= | Set Slow SQL Time(ms) |
| reload @@user_stat | Reset show @@sql @@sql.sum @@sql.slow |
| rollback @@config | Rollback all config from memory |
| rollback @@route | Rollback route config from memory |
| rollback @@user | Rollback user config from memory |
| reload @@sqlstat=open | Open real-time sql stat analyzer |
| reload @@sqlstat=close | Close real-time sql stat analyzer |
| offline | Change MyCat status to OFF |
| online | Change MyCat status to ON |
| clear @@slow where schema = ? | Clear slow sql by schema |
| clear @@slow where datanode = ? | Clear slow sql by datanode |
+--------------------------------------------------------------+--------------------------------------------+
59 rows in set (0.00 sec)
8.2 登录数据窗口
此登录方式用于通过 Mycat 查询数据，我们选择这种方式访问 Mycat
[root@shuidi01 mysql]# mysql -umycat -pzan123456 -P 8066 -h 127.0.0.1