作业一
要求: 画出实验拓扑图，标准清楚IP/hostname/作用
（1）实现1主2从GTID主从复制环境
（2）构建MHA高可用环境 30分
（3）模拟损坏主库，并实现修复 10分
（4）实现应用透明（VIP） 20分
（5）实现外部数据补偿（binlog server） 10分
（6）基于MHA环境实现Atlas读写分离 20分
（7）在线增加删除节点管理Atlas 10分
实验步骤
1、安装GITD主从复制环境
1.1 编写配置文件
1.编写master主机配置文件(172.16.1.51)
[root@db01 ~]# cat /etc/my.cnf
[mysqld]
basedir=/application/mysql
datadir=/application/mysql/data
socket=/application/mysql/tmp/mysql.sock
log-error=/var/log/mysql.log
log_bin=/data/binlog/mysql-bin
binlog_format=row
skip-name-resolve
server-id=51
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
[client]
socket=/application/mysql/tmp/mysql.sock
[root@db01 ~]#
2.编写slave1主机配置文件(172.16.1.52)
[root@db02 ~]# cat /etc/my.cnf
[mysqld]
basedir=/application/mysql
datadir=/application/mysql/data
server_id=52
socket=/application/mysql/tmp/mysql.sock
log-error=/var/log/mysql.log
log_bin=/data/binlog/mysql-bin
binlog_format=row
skip-name-resolve
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
[client]
socket=/application/mysql/tmp/mysql.sock
3.编写slave1主机配置文件(172.16.1.53)
[root@db03 ~]# vim /etc/my.cnf
[mysqld]
basedir=/application/mysql
datadir=/application/mysql/data
server_id=53
socket=/application/mysql/tmp/mysql.sock
log-error=/var/log/mysql.log
log_bin=/data/binlog/mysql-bin
binlog_format=row
skip-name-resolve
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
[client]
socket=/application/mysql/tmp/mysql.sock
4.重启数据库
/etc/init.d/mysqld restart
1.2 配置复制环境
1.在master主库上配置(51)
grant replication slave on *.* to repl@'172.16.1.%' identified by '123';
2.在从库上配置(51\52)
change master to master_host='172.16.1.51',master_user='repl',master_password='123' ,MASTER_AUTO_POSITION=1;
3.启动slave
start slave;
4.查看从库状态
show slave status\G
1.3 测试GTID环境
1.在主库上新建数据库
create database oldboy;
2.在从库上查看有没有复制成功
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| oldboy |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.01 sec)
2.搭建mha环境
2.1 在/etc/my.cnf配置文件中添加(每个节点都要添加)
relay_log_purge=0 #保留mysql中relay_log
每个节点都需要做好解析
172.16.1.51 db01
172.16.1.52 db02
172.16.1.53 db03
2.2 各个节点安装mha node
mha下载地址：https://github.com/yoshinorim/mha4mysql-manager/releases
每个点都需要进行安装mha-node
yum -y install mha4mysql-node-0.58-0.el7.centos.noarch.rpm
2.3 在主库上新建mha管理用户
grant all privileges on *.* to mha@'172.16.1.%' identified by 'mha';
2.4 配置软件链接
ln -s /application/mysql/bin/mysqlbinlog /usr/bin/mysqlbinlog
ln -s /application/mysql/bin/mysql /usr/bin/mysql
2.5 部署manage节点(生产环境一般拿多一台服务器做manage节点，此处使用db03)
yum -y install mha4mysql-manager-0.58-0.el7.centos.noarch.rpm
2.6 创建manage目录与配置文件
mkdir -p /etc/mha
mkdir -p /var/log/mha/app1 ----》可以管理多套主从复制
vim /etc/mha/app1.cnf
[server default]
manager_log=/var/log/mha/app1/manager
manager_workdir=/var/log/mha/app1
master_binlog_dir=/data/binlog
user=mha
password=mha
ping_interval=2
repl_password=123
repl_user=repl
ssh_user=root
[server1]
hostname=172.16.1.51
port=3306
[server2]
hostname=172.16.1.52
port=3306
[server3]
hostname=172.16.1.53
port=3306
2.7配置各节点ssh互信
ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa >/dev/null 2>&1
ssh-copy-id -i /root/.ssh/id_dsa.pub root@172.16.1.51
ssh-copy-id -i /root/.ssh/id_dsa.pub root@172.16.1.52
ssh-copy-id -i /root/.ssh/id_dsa.pub root@172.16.1.53
2.8 检查互信
[root@db03 tools]# masterha_check_ssh --conf=/etc/mha/app1.cnf
Tue Apr 30 20:04:52 2019 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping
.Tue Apr 30 20:04:52 2019 - [info] Reading application default configuration from /etc/mha/app1.cnf..
Tue Apr 30 20:04:52 2019 - [info] Reading server configuration from /etc/mha/app1.cnf..
Tue Apr 30 20:04:52 2019 - [info] Starting SSH connection tests..
Tue Apr 30 20:04:53 2019 - [debug]
Tue Apr 30 20:04:52 2019 - [debug] Connecting via SSH from root@172.16.1.51(172.16.1.51:22) to root@172.16.
1.52(172.16.1.52:22)..Tue Apr 30 20:04:52 2019 - [debug] ok.
Tue Apr 30 20:04:52 2019 - [debug] Connecting via SSH from root@172.16.1.51(172.16.1.51:22) to root@172.16.
1.53(172.16.1.53:22)..Tue Apr 30 20:04:53 2019 - [debug] ok.
Tue Apr 30 20:04:53 2019 - [debug]
Tue Apr 30 20:04:52 2019 - [debug] Connecting via SSH from root@172.16.1.52(172.16.1.52:22) to root@172.16.
1.51(172.16.1.51:22)..Tue Apr 30 20:04:53 2019 - [debug] ok.
Tue Apr 30 20:04:53 2019 - [debug] Connecting via SSH from root@172.16.1.52(172.16.1.52:22) to root@172.16.
1.53(172.16.1.53:22)..Tue Apr 30 20:04:53 2019 - [debug] ok.
Tue Apr 30 20:04:53 2019 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln63]
Tue Apr 30 20:04:53 2019 - [debug] Connecting via SSH from root@172.16.1.53(172.16.1.53:22) to root@172.16.
1.51(172.16.1.51:22)..Warning: Permanently added '172.16.1.53' (ECDSA) to the list of known hosts.
Permission denied (publickey,password).
Tue Apr 30 20:04:53 2019 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln111] SSH connection from
root@172.16.1.53(172.16.1.53:22) to root@172.16.1.51(172.16.1.51:22) failed!SSH Configuration Check Failed!
at /usr/bin/masterha_check_ssh line 44.
[root@db03 tools]#
2.9 检查主从
[root@db03 tools]# masterha_check_ssh --conf=/etc/mha/app1.cnf
Tue Apr 30 20:04:52 2019 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping
.Tue Apr 30 20:04:52 2019 - [info] Reading application default configuration from /etc/mha/app1.cnf..
Tue Apr 30 20:04:52 2019 - [info] Reading server configuration from /etc/mha/app1.cnf..
Tue Apr 30 20:04:52 2019 - [info] Starting SSH connection tests..
Tue Apr 30 20:04:53 2019 - [debug]
Tue Apr 30 20:04:52 2019 - [debug] Connecting via SSH from root@172.16.1.51(172.16.1.51:22) to root@172.16.
1.52(172.16.1.52:22)..Tue Apr 30 20:04:52 2019 - [debug] ok.
Tue Apr 30 20:04:52 2019 - [debug] Connecting via SSH from root@172.16.1.51(172.16.1.51:22) to root@172.16.
1.53(172.16.1.53:22)..Tue Apr 30 20:04:53 2019 - [debug] ok.
Tue Apr 30 20:04:53 2019 - [debug]
Tue Apr 30 20:04:52 2019 - [debug] Connecting via SSH from root@172.16.1.52(172.16.1.52:22) to root@172.16.
1.51(172.16.1.51:22)..Tue Apr 30 20:04:53 2019 - [debug] ok.
Tue Apr 30 20:04:53 2019 - [debug] Connecting via SSH from root@172.16.1.52(172.16.1.52:22) to root@172.16.
1.53(172.16.1.53:22)..Tue Apr 30 20:04:53 2019 - [debug] ok.
Tue Apr 30 20:04:53 2019 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln63]
Tue Apr 30 20:04:53 2019 - [debug] Connecting via SSH from root@172.16.1.53(172.16.1.53:22) to root@172.16.
1.51(172.16.1.51:22)..Warning: Permanently added '172.16.1.53' (ECDSA) to the list of known hosts.
Permission denied (publickey,password).
Tue Apr 30 20:04:53 2019 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln111] SSH connection from
root@172.16.1.53(172.16.1.53:22) to root@172.16.1.51(172.16.1.51:22) failed!SSH Configuration Check Failed!
at /usr/bin/masterha_check_ssh line 44.
[root@db03 tools]# masterha_check_repl --conf=/etc/mha/app1.cnf
Tue Apr 30 20:05:38 2019 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping
.Tue Apr 30 20:05:38 2019 - [info] Reading application default configuration from /etc/mha/app1.cnf..
Tue Apr 30 20:05:38 2019 - [info] Reading server configuration from /etc/mha/app1.cnf..
Tue Apr 30 20:05:38 2019 - [info] MHA::MasterMonitor version 0.58.
Tue Apr 30 20:05:40 2019 - [info] GTID failover mode = 1
Tue Apr 30 20:05:40 2019 - [info] Dead Servers:
Tue Apr 30 20:05:40 2019 - [info] Alive Servers:
Tue Apr 30 20:05:40 2019 - [info] 172.16.1.51(172.16.1.51:3306)
Tue Apr 30 20:05:40 2019 - [info] 172.16.1.52(172.16.1.52:3306)
Tue Apr 30 20:05:40 2019 - [info] 172.16.1.53(172.16.1.53:3306)
Tue Apr 30 20:05:40 2019 - [info] Alive Slaves:
Tue Apr 30 20:05:40 2019 - [info] 172.16.1.52(172.16.1.52:3306) Version=5.6.43-log (oldest major version
between slaves) log-bin:enabledTue Apr 30 20:05:40 2019 - [info] GTID ON
Tue Apr 30 20:05:40 2019 - [info] Replicating from 172.16.1.51(172.16.1.51:3306)
Tue Apr 30 20:05:40 2019 - [info] 172.16.1.53(172.16.1.53:3306) Version=5.6.43-log (oldest major version
between slaves) log-bin:enabledTue Apr 30 20:05:40 2019 - [info] GTID ON
Tue Apr 30 20:05:40 2019 - [info] Replicating from 172.16.1.51(172.16.1.51:3306)
Tue Apr 30 20:05:40 2019 - [info] Current Alive Master: 172.16.1.51(172.16.1.51:3306)
Tue Apr 30 20:05:40 2019 - [info] Checking slave configurations..
Tue Apr 30 20:05:40 2019 - [info] read_only=1 is not set on slave 172.16.1.52(172.16.1.52:3306).
Tue Apr 30 20:05:40 2019 - [info] read_only=1 is not set on slave 172.16.1.53(172.16.1.53:3306).
Tue Apr 30 20:05:40 2019 - [info] Checking replication filtering settings..
Tue Apr 30 20:05:40 2019 - [info] binlog_do_db= , binlog_ignore_db=
Tue Apr 30 20:05:40 2019 - [info] Replication filtering check ok.
Tue Apr 30 20:05:40 2019 - [info] GTID (with auto-pos) is supported. Skipping all SSH and Node package check
ing.Tue Apr 30 20:05:40 2019 - [info] Checking SSH publickey authentication settings on the current master..
Tue Apr 30 20:05:40 2019 - [info] HealthCheck: SSH to 172.16.1.51 is reachable.
Tue Apr 30 20:05:40 2019 - [info]
172.16.1.51(172.16.1.51:3306) (current master)
+--172.16.1.52(172.16.1.52:3306)
+--172.16.1.53(172.16.1.53:3306)
Tue Apr 30 20:05:40 2019 - [info] Checking replication health on 172.16.1.52..
Tue Apr 30 20:05:40 2019 - [info] ok.
Tue Apr 30 20:05:40 2019 - [info] Checking replication health on 172.16.1.53..
Tue Apr 30 20:05:40 2019 - [info] ok.
Tue Apr 30 20:05:40 2019 - [warning] master_ip_failover_script is not defined.
Tue Apr 30 20:05:40 2019 - [warning] shutdown_script is not defined.
Tue Apr 30 20:05:40 2019 - [info] Got exit code 0 (Not master dead).
MySQL Replication Health is OK.
[root@db03 tools]#
2.10 启动mha
nohup masterha_manager --conf=/etc/mha/app1.cnf --remove_dead_master_conf --ignore_last_failover < /dev/null > /var/log/mha/app1/manager.log 2>&1 &
3.故障演练
3.1 宕掉主库(db01)
[root@db01 tools]# /etc/init.d/mysqld stop
Shutting down MySQL...... SUCCESS!
3.2 查看mha日志
[root@db03 ~]# cat /var/log/mha/app1/manager
......
CHANGE MASTER TO MASTER_HOST='172.16.1.52', MASTER_PORT=3306, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='xxx'; #此处是恢复故障机的命令
......
----- Failover Report -----
app1: MySQL Master failover 172.16.1.51(172.16.1.51:3306) to 172.16.1.52(172.16.1.52:3306) succeeded
Master 172.16.1.51(172.16.1.51:3306) is down!
Check MHA Manager logs at db03:/var/log/mha/app1/manager for details.
Started automated(non-interactive) failover.
Selected 172.16.1.52(172.16.1.52:3306) as a new master.
172.16.1.52(172.16.1.52:3306): OK: Applying all logs succeeded.
172.16.1.53(172.16.1.53:3306): OK: Slave started, replicating from 172.16.1.52(172.16.1.52:3306)
172.16.1.52(172.16.1.52:3306): Resetting slave info succeeded.
Master failover to 172.16.1.52(172.16.1.52:3306) completed successfully. #此处表示已经成功切换到52这一台机器了
3.3 查看db03
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 172.16.1.52 #已成功切换到db02
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 805
Relay_Log_File: db03-relay-bin.000002
Relay_Log_Pos: 408
Relay_Master_Log_File: mysql-bin.000001
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: 805
Relay_Log_Space: 611
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: 52
Master_UUID: 901b2d37-6af9-11e9-9c6c-000c29481d4a
Master_Info_File: /application/mysql/data/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
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: fac6353b-6a35-11e9-9770-000c29c0e349:1-3
Auto_Position: 1
1 row in set (0.00 sec)
3.3 恢复db01
1.在db01上，将db01重新加入到主从复制
[root@db01 tools]# /etc/init.d/mysqld start
CHANGE MASTER TO MASTER_HOST='172.16.1.52', MASTER_PORT=3306, MASTER_AUTO_POSITION=1, MASTER_USER='repl',MASTER_PASSWORD='123';
start slave
2.在mha配置文件中重新加入db01
[root@db03 tools]# vim /etc/mha/app1.cnf
[server default]
......
[server1]
hostname=172.16.1.51
port=3306
......
3.启动MHA了manager程序
masterha_check_ssh --conf=/etc/mha/app1.cnf
masterha_check_ssh --conf=/etc/mha/app1.cnf
nohup masterha_manager --conf=/etc/mha/app1.cnf --remove_dead_master_conf --ignore_last_failover < /dev/null > /var/log/mha/app1/manager.log 2>&1 &
4.使用MHA自带脚本实现IP FailOver(vip 漂移，应用透明)
4.1 上传脚本
[root@db03 bin]# cat master_ip_failover
#!/usr/bin/env perl
use strict;
use warnings FATAL => 'all';
use Getopt::Long;
my (
$command, $ssh_user, $orig_master_host, $orig_master_ip,
$orig_master_port, $new_master_host, $new_master_ip, $new_master_port
);
my $vip = '10.0.0.55/24';
my $key = '1';
my $ssh_start_vip = "/sbin/ifconfig eth1:$key $vip";
my $ssh_stop_vip = "/sbin/ifconfig eth1:$key down";
GetOptions(
'command=s' => \$command,
'ssh_user=s' => \$ssh_user,
'orig_master_host=s' => \$orig_master_host,
'orig_master_ip=s' => \$orig_master_ip,
'orig_master_port=i' => \$orig_master_port,
'new_master_host=s' => \$new_master_host,
'new_master_ip=s' => \$new_master_ip,
'new_master_port=i' => \$new_master_port,
);
exit &main();
sub main {
print "\n\nIN SCRIPT TEST====$ssh_stop_vip==$ssh_start_vip===\n\n";
if ( $command eq "stop" || $command eq "stopssh" ) {
my $exit_code = 1;
eval {
print "Disabling the VIP on old master: $orig_master_host \n";
&stop_vip();
$exit_code = 0;
};
if ($@) {
warn "Got Error: $@\n";
exit $exit_code;
}
exit $exit_code;
}
elsif ( $command eq "start" ) {
my $exit_code = 10;
eval {
print "Enabling the VIP - $vip on the new master - $new_master_host \n";
&start_vip();
$exit_code = 0;
};
if ($@) {
warn $@;
exit $exit_code;
}
exit $exit_code;
}
elsif ( $command eq "status" ) {
print "Checking the Status of the script.. OK \n";
exit 0;
}
else {
&usage();
exit 1;
}
}
sub start_vip() {
`ssh $ssh_user\@$new_master_host \" $ssh_start_vip \"`;
}
sub stop_vip() {
return 0 unless ($ssh_user);
`ssh $ssh_user\@$orig_master_host \" $ssh_stop_vip \"`;
}
sub usage {
print
"Usage: master_ip_failover --command=start|stop|stopssh|status --orig_master_host=host --orig_master_ip=
ip --orig_master_port=port --new_master_host=host --new_master_ip=ip --new_master_port=port\n";
[root@db03 bin]# dos2unix /usr/local/bin/master_ip_failover
[root@db03 bin]# chmod +x master_ip_failover
4.2 在mha配置文件中添加
[root@db03 bin]# vim /etc/mha/app1.cnf
[server default]
......
master_ip_failover_script=/usr/local/bin/master_ip_failover
......
4.3 修改master_ip_failover配置文件
my $vip = '172.16.1.100/24';
my $key = '1';
my $ssh_start_vip = "/sbin/ifconfig eth1:$key $vip";
my $ssh_stop_vip = "/sbin/ifconfig eth1:$key down";
4.4 重启mha
masterha_stop --conf=/etc/mha/app1.cnf
nohup masterha_manager --conf=/etc/mha/app1.cnf --remove_dead_master_conf --ignore_last_failover < /dev/null > /var/log/mha/app1/manager.log 2>&1 &
4.5 手工在主库上绑定vip，注意一定要和配置文件中的ethN一致，我的是eth1:1(1是key指定的值)
ifconfig eth1:1 172.16.1.100/24 #如最小化安装没有ifconfig 命令则需要使用yum -y install net-tools安装
[root@db02 tools]# ip a
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:48:1d:54 brd ff:ff:ff:ff:ff:ff
inet 172.16.1.52/24 brd 172.16.1.255 scope global eth1
valid_lft forever preferred_lft forever
inet 172.16.1.100/24 brd 172.16.1.255 scope global secondary eth1:1
valid_lft forever preferred_lft forever
4.6 切换测试
停止主库
[root@db02 tools]# /etc/init.d/mysqld stop
Shutting down MySQL...... SUCCESS!
此时发现vip已经在db01上了
[root@db01 tools]# ip a
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:c0:e3:53 brd ff:ff:ff:ff:ff:ff
inet 172.16.1.51/24 brd 172.16.1.255 scope global eth1
valid_lft forever preferred_lft forever
inet 172.16.1.100/24 brd 172.16.1.255 scope global secondary eth1:1
valid_lft forever preferred_lft forever
4.7 恢复db02主从复制关系
mysql> CHANGE MASTER TO MASTER_HOST='172.16.1.51', MASTER_PORT=3306, MASTER_AUTO_POSITION=1, MASTER_USER='re
pl',MASTER_PASSWORD='123';
在mha配置文件中加入
[server2]
hostname=172.16.1.52
port=3306
启动mha
5.实现外部数据补偿(binlogserver配置)
生产环境中一般是找一台额外的机器，必须要有5.6以上的版本，支持gtid并开启，我们直接用的是db03
5.1 在mha配置文件中加入
[root@db03 bin]# vim /etc/mha/app1.cnf
[server default]
manager_log=/var/log/mha/app1/manager
manager_workdir=/var/log/mha/app1
master_binlog_dir=/data/binlog
master_ip_failover_script=/usr/local/bin/master_ip_failover
password=mha
ping_interval=2
repl_password=123
repl_user=repl
ssh_user=root
user=mha
[server1]
hostname=172.16.1.51
port=3306
[server2]
hostname=172.16.1.52
port=3306
[binlog1]
no_master=1
hostname=172.16.1.53
master_binlog_dir=/data/mysql/binlog #提前创建好,这个目录不能和原有的binlog一致
mkdir -p /data/mysql/binlog
chown -R mysql.mysql /data/mysql/*
5.2 拉取主库binlog文件
cd /data/mysql/binlog -----》必须进入到自己创建好的目录
mysqlbinlog -R --host=172.16.1.51 --user=mha --password=mha --raw --stop-never mysql-bin.000001 &
5.3 重启mha
masterha_stop --conf=/etc/mha/app1.cnf
nohup masterha_manager --conf=/etc/mha/app1.cnf --remove_dead_master_conf --ignore_last_failover < /dev/null > /var/log/mha/app1/manager.log 2>&1 &
5.4 测试
刷新binlog日志在主库上
mysql> flush logs;
查看binserver目录
[root@db03 binlog]# ls
mysql-bin.000001 mysql-bin.000002 mysql-bin.000003 mysql-bin.000004
6.基于MHA环境实现Atlas读写分离
6.1 安装Atlas
下载地址：https://github.com/Qihoo360/Atlas/releases
rpm -ivh Atlas-2.2.1.el6.x86_64.rpm
6.2 修改配置文件
/usr/local/mysql-proxy/bin/encrypt 123 #制作加密密码
cd /usr/local/mysql-proxy/
vim /usr/local/mysql-proxy/conf/test.cnf
[mysql-proxy]
admin-username = user
admin-password = pwd
proxy-backend-addresses = 172.16.1.100:3306 #此处是mha的vip地址
proxy-read-only-backend-addresses = 172.16.1.52:3306,172.16.1.53:3306
pwds = repl:3yb5jEku5h4=,mha:O2jBXONX098=
daemon = true
keepalive = true
event-threads = 8
log-level = message
log-path = /usr/local/mysql-proxy/log
sql-log=ON
proxy-address = 0.0.0.0:33060
admin-address = 0.0.0.0:2345
charset=utf8
6.3 启动atlas
/usr/local/mysql-proxy/bin/mysql-proxyd test start
6.4 测试
测试读写分离：
读的测试
mysql -umha -pmha -h172.16.1.53 -P33060
show variables like 'server_id';
写操作测试：
设置两个从节点只读
set global read_only=1;
连接测试
mysql -umha -pmha -h172.16.1.53 -P33060
create database db1;
6.5 管理altas
连接管理接口：
mysql -uuser -ppwd -h127.0.0.1 -P2345
打印帮助：
mysql> select * from help;
动态添加删除节点：
REMOVE BACKEND 3;
添加节点
ADD SLAVE 172.16.1.53:3306;
保存到配置文件中
SAVE CONFIG;
