監控系統項目實施--安裝與部署-- MySQL數據庫

時間 2021-03-20

標籤 php java mysql sql 數據庫服務器 ssh curl socket ide 欄目 MySQL 简体版

原文原文鏈接

主機配置

[root@zabbix-mysql01 ~]# cat /etc/hosts
10.10.10.201   zabbix-mysql01
10.10.10.202   zabbix-mysql02

安裝mysql

[root@zabbix-mysql01 ~]#rpm -ivh http://repo.mysql.com/yum/mysql-8.0-community/el/7/x86_64/mysql80-community-release-el7-3.noarch.rpm 

[root@zabbix-mysql01 ~]# yum -y install mysql-community-server

配置Mysql

[root@zabbix-mysql01 ~]# cat /etc/my.cnf

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql

symbolic-links=0
character-set-server=utf8
innodb_file_per_table=1
innodb_data_file_path=ibdata1:10M:autoextend
server_id=1

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[root@zabbix-mysql02 ~]# cat /etc/my.cnf

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql

symbolic-links=0
character-set-server=utf8
innodb_file_per_table=1
innodb_data_file_path=ibdata1:10M:autoextend
server_id=2

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

啓動數據庫

先啓動主節點，備節點暫時不啓動。

[root@zabbix-mysql01 ~]# systemctl start mysqld
[root@zabbix-mysql01 ~]#

修改密碼

首先查找臨時密碼
tail -100  /var/log/messages

Mar 19 22:30:11 zabbix-mysql01 mysqld_pre_systemd: 2021-03-19T14:30:11.846201Z 0 [System] [MY-013169] [Server] /usr/sbin/mysqld (mysqld 8.0.23) initializing of server in progress as process 3341
Mar 19 22:30:11 zabbix-mysql01 mysqld_pre_systemd: 2021-03-19T14:30:11.847519Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
Mar 19 22:30:11 zabbix-mysql01 mysqld_pre_systemd: 2021-03-19T14:30:11.851720Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
Mar 19 22:30:12 zabbix-mysql01 mysqld_pre_systemd: 2021-03-19T14:30:12.117691Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.
Mar 19 22:30:12 zabbix-mysql01 mysqld_pre_systemd: 2021-03-19T14:30:12.680672Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: Viop6I6:eWS!

[root@zabbix-mysql01 ~]# mysql -uroot -p
Enter password: 
mysql> alter user 'root'@'localhost' identified by 'Root@123456';
mysql> FLUSH PRIVILEGES;
mysql> create database zabbix character set utf8mb4;
mysql> select host,user from mysql.user;
mysql> CREATE USER 'zabbix'@'%' IDENTIFIED BY 'Root@123456';
mysql> grant all privileges on *.* to 'zabbix'@'%' ;
mysql> FLUSH PRIVILEGES;
mysql> select host,user from mysql.user;

mysql> CREATE USER 'zabbix'@'localhost' IDENTIFIED BY 'Root@123456';
mysql> CREATE USER 'zabbix'@'127.0.0.1' IDENTIFIED BY 'Root@123456';
mysql> grant all privileges on *.* to 'zabbix'@'localhost' ;
mysql> grant all privileges on *.* to 'zabbix'@'127.0.0.1' ;
mysql> FLUSH PRIVILEGES;

導入數據庫文件

導入數據庫文件,該文件須要安裝zabbix插件，可參考以前安裝的步驟進行操做

wget http://repo.zabbix.com/zabbix/4.0/rhel/7/x86_64/zabbix-release-4.0-2.el7.noarch.rpm
rpm -ivh zabbix-release-4.0-2.el7.noarch.rpm

安裝

yum -y install gcc make  openldap-devel libssh2-devel net-snmp-devel  curl-devel unixODBC-devel OpenIPMI-devel java-devel   net-snmp-devel openldap-devel gnutls-devel sqlite-devel sqlite-devel curl-devel libxml2-devel libevent-devel openssl-devel

yum install -y httpd php php-mysql
yum -y install zabbix-server-mysql
yum -y install  zabbix-agent

安裝這些之後，就能有create.sql.gz包
cd /usr/share/doc/zabbix-server-mysql-4.0.29
gunzip create.sql.gz

mysql -uzabbix -pRoot@123456 -h127.0.0.1
use zabbix
source create.sql

Mysql數據庫主庫配置

如下操做在主服務器上進行
中止Mysql主庫服務
systemctl stop mysqld

同步主庫文件到從庫

[root@zabbix-mysql01 ~]# rsync -av -e "ssh -p 22" /var/lib/mysql/ root@10.10.10.202:/var/lib/mysql/php

啓動主庫服務

[root@zabbix-mysql01 ~]# systemctl start mysqld

主庫上配置複製數據庫用戶

[root@zabbix-mysql01 ~]# mysql -uroot -pRoot@123456

mysql> create user 'repl'@'%' identified with mysql_native_password by 'Root@123456';
Query OK, 0 rows affected (0.00 sec)

mysql> grant replication client,replication slave on *.* to 'repl'@'%';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql>

查看主庫運行狀態

mysql> show master status\G
*************************** 1. row ***************************
             File: binlog.000004
         Position: 846
     Binlog_Do_DB: 
 Binlog_Ignore_DB: 
Executed_Gtid_Set: 
1 row in set (0.00 sec)

MYSQL 數據庫從庫的配置

啓動從節點

須要從節點的/var/lib/mysql/auto.cnf

[root@zabbix-mysql02 mysql]# systemctl start mysqld

鏈接主庫

change master to master_host='10.10.10.201',
MASTER_USER='repl',
master_password='Root@123456',
master_port=3306,
master_log_file='binlog.000004',
master_log_pos=846,
master_connect_retry=10;

查看狀態

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.10.10.201
                  Master_User: repl
                  Master_Port: 3306
                Connect_Retry: 10
              Master_Log_File: binlog.000004
          Read_Master_Log_Pos: 846
               Relay_Log_File: zabbix-mysql02-relay-bin.000003
                Relay_Log_Pos: 321
        Relay_Master_Log_File: binlog.000004
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 846
              Relay_Log_Space: 539
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 1
                  Master_UUID: 9d590336-88bf-11eb-905e-000c29a5e8a0
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 
            Executed_Gtid_Set: 
                Auto_Position: 0
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
       Master_public_key_path: 
        Get_master_public_key: 0
            Network_Namespace: 
1 row in set, 1 warning (0.00 sec)

若是不刪除從節點的auto.cnf文件，則會報錯

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: 
                  Master_Host: 10.10.10.201
                  Master_User: repl
                  Master_Port: 3306
                Connect_Retry: 10
              Master_Log_File: binlog.000004
          Read_Master_Log_Pos: 846
               Relay_Log_File: zabbix-mysql02-relay-bin.000001
                Relay_Log_Pos: 4
        Relay_Master_Log_File: binlog.000004
             Slave_IO_Running: No
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 846
              Relay_Log_Space: 156
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 13117
                Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work.
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 1
                  Master_UUID: 
             Master_Info_File: mysql.slave_master_info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 210320 00:34:09
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 
            Executed_Gtid_Set: 
                Auto_Position: 0
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
       Master_public_key_path: 
        Get_master_public_key: 0
            Network_Namespace: 
1 row in set, 1 warning (0.01 sec)