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2025-01-21 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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Shulou(Shulou.com)06/01 Report--
Environmental planning:
IP address hostname role remark 10.4.132.50k8s01mycatpender master
10.4.132.42k8s02slave
10.4.132.66k8s03slave
Mycat download address: http://dl.mycat.io/1.6.7.3/20190828135747/Mycat-server-1.6.7.3-release-20190828135747-linux.tar.gz
Mysql download address: http://mirrors.163.com/mysql/Downloads/MySQL-5.7/mysql-5.7.27-linux-glibc2.12-x86_64.tar.gz
Mycal manages cluster port: [root@k8s01 conf] # mysql-h 127.0.0.1-u root-p123456-P 9066
Mycat data port: [root@k8s01 conf] # mysql-h 127.0.0.1-u root-p123456-P 8066
1. Download and install mysql (1 master node and 2 slave nodes)
[root@k8s01 soft] # wget http://mirrors.163.com/mysql/Downloads/MySQL-5.7/mysql-5.7.27-linux-glibc2.12-x86_64.tar.gz
[root@k8s01 soft] # tar xvf mysql-5.7.27-linux-glibc2.12-x86_64.tar.gz-C / usr/local/
[root@k8s01 soft] # cd / usr/local/
[root@k8s01 local] # mv mysql-5.7.27-linux-glibc2.12-x86_64/ mysql-5.7.27
[root@k8s01 local] # chown-R root:root mysql-5.7.27/
[root@k8s01 local] # cd mysql-5.7.27/
[root@k8s01 mysql-5.7.27] # mkdir data
[root@k8s01 mysql-5.7.27] # useradd-r-M-s / bin/nologin mysql
[root@k8s01 mysql-5.7.27] # chown-R mysql:mysql data/
[root@k8s01 mysql-5.7.27] # / bin/mysqld-- initialize-- user=mysql-- basedir=/usr/local/mysql-5.7.27-- datadir=/usr/local/mysql-5.7.27/data
2019-11-02T04:24:41.908404Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use-explicit_defaults_for_timestamp server option (see documentation for more details).
2019-11-02T04:24:46.687678Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-11-02T04:24:47.428823Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-11-02T04:24:47.487404Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: b42cef88-fd28-11e9-a5cc-000c29ee86d5.
2019-11-02T04:24:47.488204Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2019-11-02T04:24:47.612739Z 1 [Note] A temporary password is generated for root@localhost: 3m Tencent 5yQuan 7Troujc-login password
[root@k8s01 mysql-5.7.27] # cp-a support-files/mysql.server / etc/init.d/mysqld
[root@k8s01 mysql-5.7.27] # chkconfig-- add mysqld
[root@k8s01 mysql-5.7.27] # chkconfig mysqld on
[root@k8s01 mysql-5.7.27] # vim / etc/init.d/mysqld
Basedir=/usr/local/mysql-5.7.27
Datadir=/usr/local/mysql-5.7.27/data
[root@k8s01 mysql-5.7.27] # vim / etc/my.cnf
[mysqld]
Basedir=/usr/local/mysql-5.7.27
Datadir=/usr/local/mysql-5.7.27/data
Socket=/tmp/mysql.sock
Symbolic-links=0
Server_id=10
Binlog_format=ROW
Max_binlog_size=2G
Sync_binlog=1
Binlog_cache_size=64M
Log_bin=bin-log
Log_bin_index=bin-index
[mysqld_safe]
Log-error=/usr/local/mysql-5.7.27/data/mariadb.log
Pid-file=/usr/local/mysql-5.7.27/data/mariadb.pid
[root@k8s01 mysql-5.7.27] # / etc/init.d/mysqld restart
ERROR! MySQL server PID file could not be found!
Starting MySQL.Logging to'/ usr/local/mysql-5.7.27/data/mariadb.log'.
... SUCCESS!
[root@k8s01 mysql-5.7.27] # vim / etc/profile
Export PATH=$PATH:/usr/local/mysql-5.7.27/bin
[root@k8s01 mysql-5.7.27] # mysql- u root-p
Enter password:
Welcome to the MySQL monitor. Commands end with; or\ g.
Your MySQL connection id is 3
Server version: 5.7.27
Copyright (c) 2000, 2019, 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 respectiveowners.
Type 'help;' or'\ h' for help. Type'\ c'to clear the current input statement.
Mysql > set password=password ('System135')
Query OK, 0 rows affected, 1 warning (0.00 sec)
Mysql > flush privileges
Query OK, 0 rows affected (0.00 sec)
Mysql > exit
Bye
[root@k8s01 mysql-5.7.27] # mysql- u root-pSystem135
Mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with; or\ g.
Your MySQL connection id is 6
Server version: 5.7.27 MySQL Community Server (GPL)
Copyright (c) 2000, 2019, 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
+-+
| | Database |
+-+
| | information_schema |
| | mysql |
| | performance_schema |
| | sys |
+-+
4 rows in set (0.00 sec)
Mysql >
2.master node and slave node act as master and slave
Master node:
[root@k8s01 mysql-5.7.27] # mysql- u root-pSystem135
Mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with; or\ g.
Your MySQL connection id is 39
Server version: 5.7.27-log MySQL Community Server (GPL) Copyright (c) 2000, 2019, 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 master status
+-+
| | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | |
+-+
| | bin-log.000002 | 3093 | |
+-+
1 row in set (0.00 sec) mysql >
3. Two slave nodes (both slave nodes are connected to the master node)
[root@k8s02] # mysql-u root-pSystem135
Mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with; or\ g.
Your MySQL connection id is 2
Server version: 5.7.27 MySQL Community Server (GPL) Copyright (c) 2000, 2019, 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 > change master to master_host='10.4.132.50',master_user='repl',master_password='123456',master_port=3306,master_log_file='bin-log.000002',master_log_pos=3093
Query OK, 0 rows affected, 2 warnings (0.08 sec) mysql > start slave
Query OK, 0 rows affected (0.03 sec)
Mysql > show slave status\ G
* * 1. Row *
Slave_IO_State: Waiting for master to send event
Master_Host: 10.4.132.50
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: bin-log.000002
Read_Master_Log_Pos: 3093
Relay_Log_File: k8s02-relay-bin.000002
Relay_Log_Pos: 318
Relay_Master_Log_File: bin-log.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
. . .
Mysql >
4. Verify whether the master-slave data is synchronized
Master node:
Mysql > system hostname
K8s01
Mysql > create database wuhan charset utf8
Query OK, 1 row affected (0.00 sec)
Mysql > use wuhan
Database changed
Mysql > create table T1 (an int)
Query OK, 0 rows affected (0.01 sec)
Mysql > insert into T1 values (1)
Query OK, 1 row affected (0.00 sec) mysql > select * from T1
+-+
| | a |
+-+
| | 1 |
+-+
1 row in set (0.00 sec) mysql >
Slave1 node:
Mysql > system hostname
K8s02
Mysql > use wuhan
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 > select * from T1
+-+
| | a |
+-+
| | 1 |
+-+
1 row in set (0.00 sec)
Mysql >
Slave2 node:
Mysql > system hostname
K8s03
Mysql > use wuhan
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 > select * from T1
+-+
| | a |
+-+
| | 1 |
+-+
1 row in set (0.00 sec) mysql >
5. Download installation configuration Mycat (master node)
[root@k8s01 soft] # rpm-ivh jdk-8u221-linux-x64.rpm
Warning: jdk-8u221-linux-x64.rpm: Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEY
Preparing... # # [100%]
Updating / installing...
1:jdk1.8-2000:1.8.0_221-fcs # # [100%]
Unpacking JAR files...
Tools.jar...
Plugin.jar...
Javaws.jar...
Deploy.jar...
Rt.jar...
Jsse.jar...
Charsets.jar...
Localedata.jar...
[root@k8s01 soft] # tar xvf Mycat-server-1.6.7.3-release-20190828135747-linux.tar.gz-C / usr/local/
[root@k8s01 soft] # cd / usr/local/mycat/conf/
[root@k8s01 conf] # vim schema.xml
Configuration instructions:
Schema name= "wuhan"-- A library that needs to do read-write separation
CheckSQLschema= "true"-whether to remove the schema name when executing sql
SqlMaxLimit= "100"-if the sql statement does not have a limit limit, the default value is 100
Exit
Bye
[root@k8s01 conf] # mysql-h 127.0.0.1-u root-p123456-P 8066-A
Mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with; or\ g.
Your MySQL connection id is 3
Server version: 5.6.29-mycat-1.6.7.3-release-20190828215749 MyCat Server (OpenCloudDB) Copyright (c) 2000, 2019, 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 > use wuhan
Database changed
Mysql > select * from T1
+-+
| | a |
+-+
| | 1 |
+-+
1 rows in set (0.00 sec) mysql >
Log view results:
You can log in repeatedly and write the data results (you must exit the session and log in again):
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