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MYSQL之MHA集群

时间:2018-05-18 14:11:33      阅读:263      评论:0      收藏:0      [点我收藏+]

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环境

manager		192.168.137.141
master1		192.168.137.144
master2		192.168.137.145
slave		192.168.137.141
vip			192.168.137.199

部署

三台机器已安装mysql。

百度云:链接:https://pan.baidu.com/s/1an3QjoFFdqcjo5-KWRCShw 密码:wsq9

192.168.137.141
mha4mysql-manager-0.55-0.el6.noarch.rpm
mha4mysql-node-0.54-0.el6.noarch.rpm

192.168.137.144
192.168.137.145
mha4mysql-node-0.54-0.el6.noarch.rpm

依赖

链接:https://pan.baidu.com/s/1mTcoBiUsvATQMkM3bXJKrA 密码:rpvq

 yum install perl perl-ExtUtils-CBuilder perl-ExtUtils-MakeMaker perl-CPAN perl-DBD-MySQL

都要安装。

主模块1:配置集群之前SSH免密码登录

两步完成ssh免密码登录

192.168.137.141  -->  192.168.137.144
192.168.137.141  -->  192.168.137.145

192.168.137.144  -->  192.168.137.141
192.168.137.144  -->  192.168.137.145

192.168.137.145  -->  192.168.137.141
192.168.137.145  -->  192.168.137.144

6次

主模块2:配置集群主从复制

mysql主备部署[高可用]

master:		192.168.137.144
slave:		192.168.137.145

master:		192.168.137.144
slave:		192.168.137.141

主模块3:manager配置

mkdir -p /etc/masterha

cd /etc/masterha

vim app1.cnf

app1.cnf

[server default]
user=root
password=lizhenghua
manager_workdir=/etc/masterha
manager_log=/etc/masterha/logs/manager.log
remote_workdir=/etc/masterha
ssh_user=root
repl_user=sync
repl_password=sync
ping_interval=3
#master_ip_online_change_script=/etc/masterha/script/master_ip_online_change
master_ip_failover_script=/etc/masterha/script/master_ip_failover
#report_script=/etc/masterha/script/sendMail_report
[server1]
hostname=192.168.137.144
port=3306
master_binlog_dir=/usr/local/mysql/data/
candidate_master=1
[server2]
hostname=192.168.137.145
port=3306
master_binlog_dir=/usr/local/mysql/data/
candidate_master=1
[server3]
hostname=192.168.137.141
port=3306
master_binlog_dir=/usr/local/mysql/data/
candidate_master=1

副模块1:检测SSH

技术分享图片

masterha_check_ssh --conf=/etc/masterha/app1.cnf 

模块2:检测主从

技术分享图片

masterha_check_repl --conf=/etc/masterha/app1.cnf

manager启动方式

vim start.sh

#!/usr/bin/bash
nohup perl /root/perl5/bin/masterha_manager --conf=/etc/masterha/conf/app1.cnf &

功能测试

192.168.137.141

mysql> show slave status \G*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.137.144
                  Master_User: sync
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000003
          Read_Master_Log_Pos: 154
               Relay_Log_File: mysql-relay-bin.000004
                Relay_Log_Pos: 367
        Relay_Master_Log_File: mysql-bin.000003
             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: 154
              Relay_Log_Space: 740
              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: 144
                  Master_UUID: 9abbdca0-424e-11e8-a71a-000c29deb434
             Master_Info_File: /usr/local/mysql/data/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: 
1 row in set (0.00 sec)

kill掉192.168.137.144机器上的mysql, 然后141开始切换master

mysql> show slave status \G*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.137.145
                  Master_User: sync
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000003
          Read_Master_Log_Pos: 154
               Relay_Log_File: mysql-relay-bin.000002
                Relay_Log_Pos: 320
        Relay_Master_Log_File: mysql-bin.000003
             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: 154
              Relay_Log_Space: 527
              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: 145
                  Master_UUID: 9abbdca0-424e-11e8-a71a-000c29deb433
             Master_Info_File: /usr/local/mysql/data/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: 
1 row in set (0.00 sec)

manager上日志

技术分享图片

切换成功!

 主模块3:VIP

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 = ‘192.168.137.199/24‘;
my $key = ‘0‘;
my $ssh_start_vip = "/usr/sbin/ifconfig ens33:$key $vip netmask 255.255.255.0 up";
my $ssh_stop_vip = "/usr/sbin/ifconfig ens33:$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";
} 

 检测VIP漂移

第一步:启动manager

[root@localhost masterha]# ./start.sh 
[root@localhost masterha]# nohup: 把输出追加到"nohup.out"

务必保证已经启动成功(ssh,主从检测都没错一般不会出问题)!
start.sh里写了什么? 看上面

第二步:停止master mysql(192.168.137.144)

[root@localhost masterha]# ssh root@192.168.137.144 "service mysql stop"
Shutting down MySQL............ SUCCESS! 

看manager.log日志

技术分享图片

查看原来master1 192.168.137.144发现VIP已经被down掉

技术分享图片

发现VIP漂移到了新的master2 192.168.137.145上

技术分享图片

此时VIP切换成功!

同时查看主从切换, 按道理说现在master1 192.168.137.144上的mysql已经宕掉, slave应该连接新的master2 137.145上

漂移前查询
mysql> show slave status \G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.137.144 Master_User: sync Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000016 Read_Master_Log_Pos: 154 Relay_Log_File: mysql-relay-bin.000002 Relay_Log_Pos: 320 Relay_Master_Log_File: mysql-bin.000016 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: 154 Relay_Log_Space: 527 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: 144 Master_UUID: 9abbdca0-424e-11e8-a71a-000c29deb434 Master_Info_File: /usr/local/mysql/data/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: 1 row in set (0.00 sec)
漂移后查询 mysql> show slave status \G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.137.145 Master_User: sync Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000005 Read_Master_Log_Pos: 154 Relay_Log_File: mysql-relay-bin.000002 Relay_Log_Pos: 320 Relay_Master_Log_File: mysql-bin.000005 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: 154 Relay_Log_Space: 527 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: 145 Master_UUID: 9abbdca0-424e-11e8-a71a-000c29deb433 Master_Info_File: /usr/local/mysql/data/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: 1 row in set (0.00 sec)

VIP漂移正常,主从复制正常,MHA搭建成功!

 

 

 

 

报错信息:

SSH

测试ssh报错
 [root@localhost app]# masterha_check_ssh --conf=/etc/masterha/app/app1.cnf      
Thu May 17 01:04:32 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Thu May 17 01:04:32 2018 - [info] Reading application default configurations from /etc/masterha/app/app1.cnf..
Thu May 17 01:04:32 2018 - [info] Reading server configurations from /etc/masterha/app/app1.cnf..
Thu May 17 01:04:32 2018 - [info] Starting SSH connection tests..
Thu May 17 01:04:33 2018 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln63] 
Thu May 17 01:04:32 2018 - [debug]  Connecting via SSH from root@192.168.137.144(192.168.137.144:22) to root@192.168.137.145(192.168.137.145:22)..
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
Thu May 17 01:04:32 2018 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln111] SSH connection from root@192.168.137.144(192.168.137.144:22) to root@192.168.137.145(192.168.137.145:22) failed!
Thu May 17 01:04:33 2018 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln63] 
Thu May 17 01:04:32 2018 - [debug]  Connecting via SSH from root@192.168.137.145(192.168.137.145:22) to root@192.168.137.144(192.168.137.144:22)..
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
Thu May 17 01:04:33 2018 - [error][/usr/share/perl5/vendor_perl/MHA/SSHCheck.pm, ln111] SSH connection from root@192.168.137.145(192.168.137.145:22) to root@192.168.137.144(192.168.137.144:22) failed!
Bizarre copy of ARRAY in scalar assignment at /usr/share/perl5/vendor_perl/Carp.pm line 182.
 解决方案
 三台机器互相配置ssh免密码认证(每台两次共6次)
 再测
 [root@localhost app]# masterha_check_ssh --conf=/etc/masterha/app/app1.cnf 
Thu May 17 01:12:33 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Thu May 17 01:12:33 2018 - [info] Reading application default configurations from /etc/masterha/app/app1.cnf..
Thu May 17 01:12:33 2018 - [info] Reading server configurations from /etc/masterha/app/app1.cnf..
Thu May 17 01:12:33 2018 - [info] Starting SSH connection tests..
Thu May 17 01:12:34 2018 - [debug] 
Thu May 17 01:12:33 2018 - [debug]  Connecting via SSH from root@192.168.137.144(192.168.137.144:22) to root@192.168.137.145(192.168.137.145:22)..
Thu May 17 01:12:34 2018 - [debug]   ok.
Thu May 17 01:12:35 2018 - [debug] 
Thu May 17 01:12:34 2018 - [debug]  Connecting via SSH from root@192.168.137.145(192.168.137.145:22) to root@192.168.137.144(192.168.137.144:22)..
Thu May 17 01:12:35 2018 - [debug]   ok.
Thu May 17 01:12:35 2018 - [info] All SSH connection tests passed successfully.

主从1

主主同步报错
mysql> show slave status \G
*************************** 1. row ***************************
               Slave_IO_State: 
                  Master_Host: 192.168.137.145
                  Master_User: sync
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000001
          Read_Master_Log_Pos: 336
               Relay_Log_File: localhost-relay-bin.000001
                Relay_Log_Pos: 4
        Relay_Master_Log_File: mysql-bin.000001
             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: 336
              Relay_Log_Space: 154
              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: 1593
                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: 145
                  Master_UUID: 
             Master_Info_File: /usr/local/mysql/data/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: 180517 01:37:32
     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: 
1 row in set (0.00 sec)
解决:
[root@localhost .ssh]# cd /usr/local/mysql/data/
[root@localhost data]# vim auto.cnf 
[auto]
server-uuid=9abbdca0-424e-11e8-a71a-000c29deb434
保存退出。(保证两个mysql的uuid不一致即可)

主从2

报错3:主从问题
[root@localhost ~]# masterha_check_repl --conf=/etc/masterha/app1.cnf 
Thu May 17 21:32:15 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Thu May 17 21:32:15 2018 - [info] Reading application default configurations from /etc/masterha/app1.cnf..
Thu May 17 21:32:15 2018 - [info] Reading server configurations from /etc/masterha/app1.cnf..
Thu May 17 21:32:15 2018 - [info] MHA::MasterMonitor version 0.55.
Thu May 17 21:32:15 2018 - [warning] SQL Thread is stopped(no error) on 192.168.137.144(192.168.137.144:3306)
Thu May 17 21:32:15 2018 - [error][/root/perl5/lib/perl5/MHA/ServerManager.pm, ln732] Multi-master configuration is detected, but two or more masters are either writable (read-only is not set) or dead! Check configurations for details. Master configurations are as below: 
Master 192.168.137.145(192.168.137.145:3306), replicating from 192.168.137.144(192.168.137.144:3306)
Master 192.168.137.144(192.168.137.144:3306), replicating from 192.168.137.145(192.168.137.145:3306)

Thu May 17 21:32:15 2018 - [error][/root/perl5/lib/perl5/MHA/MasterMonitor.pm, ln386] Error happend on checking configurations.  at /root/perl5/lib/perl5/MHA/MasterMonitor.pm line 300.
Thu May 17 21:32:15 2018 - [error][/root/perl5/lib/perl5/MHA/MasterMonitor.pm, ln482] Error happened on monitoring servers.
Thu May 17 21:32:15 2018 - [info] Got exit code 1 (Not master dead).

MySQL Replication Health is NOT OK!
[root@localhost ~]# 
解决:
在每台mysql的my.cnf下配置属性:(主要是备机)
relay-log=/usr/local/mysql/binlog/mysql-relay-bin
mkdir -p /usr/local/mysql/binlog
chown -R mysql:mysql /usr/local/mysql/binlog
重启mysql。
重新配置主从:
CHANGE MASTER TO MASTER_HOST=‘192.168.137.144‘,MASTER_USER=‘sync‘,MASTER_PASSWORD=‘sync‘,MASTER_LOG_FILE=‘mysql-bin.000002‘,MASTER_LOG_POS=154;

结果:

[root@localhost ~]# masterha_check_repl --conf=/etc/masterha/app1.cnf 
Thu May 17 21:58:11 2018 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Thu May 17 21:58:11 2018 - [info] Reading application default configurations from /etc/masterha/app1.cnf..
Thu May 17 21:58:11 2018 - [info] Reading server configurations from /etc/masterha/app1.cnf..
Thu May 17 21:58:11 2018 - [info] MHA::MasterMonitor version 0.55.
Thu May 17 21:58:11 2018 - [info] Dead Servers:
Thu May 17 21:58:11 2018 - [info] Alive Servers:
Thu May 17 21:58:11 2018 - [info]   192.168.137.144(192.168.137.144:3306)
Thu May 17 21:58:11 2018 - [info]   192.168.137.145(192.168.137.145:3306)
Thu May 17 21:58:11 2018 - [info] Alive Slaves:
Thu May 17 21:58:11 2018 - [info]   192.168.137.145(192.168.137.145:3306)  Version=5.7.21-log (oldest major version between slaves) log-bin:enabled
Thu May 17 21:58:11 2018 - [info]     Replicating from 192.168.137.144(192.168.137.144:3306)
Thu May 17 21:58:11 2018 - [info]     Primary candidate for the new Master (candidate_master is set)
Thu May 17 21:58:11 2018 - [info] Current Alive Master: 192.168.137.144(192.168.137.144:3306)
Thu May 17 21:58:11 2018 - [info] Checking slave configurations..
Thu May 17 21:58:11 2018 - [info]  read_only=1 is not set on slave 192.168.137.145(192.168.137.145:3306).
Thu May 17 21:58:11 2018 - [warning]  relay_log_purge=0 is not set on slave 192.168.137.145(192.168.137.145:3306).
Thu May 17 21:58:11 2018 - [info] Checking replication filtering settings..
Thu May 17 21:58:11 2018 - [info]  binlog_do_db= , binlog_ignore_db= 
Thu May 17 21:58:11 2018 - [info]  Replication filtering check ok.
Thu May 17 21:58:11 2018 - [info] Starting SSH connection tests..
Thu May 17 21:58:12 2018 - [info] All SSH connection tests passed successfully.
Thu May 17 21:58:12 2018 - [info] Checking MHA Node version..
Thu May 17 21:58:13 2018 - [info]  Version check ok.
Thu May 17 21:58:13 2018 - [info] Checking SSH publickey authentication settings on the current master..
Thu May 17 21:58:13 2018 - [info] HealthCheck: SSH to 192.168.137.144 is reachable.
Thu May 17 21:58:14 2018 - [info] Master MHA Node version is 0.54.
Thu May 17 21:58:14 2018 - [info] Checking recovery script configurations on the current master..
Thu May 17 21:58:14 2018 - [info]   Executing command: save_binary_logs --command=test --start_pos=4 --binlog_dir=/usr/local/mysql/data/ --output_file=/masterha/save_binary_logs_test --manager_version=0.55 --start_file=mysql-bin.000002 
Thu May 17 21:58:14 2018 - [info]   Connecting to root@192.168.137.144(192.168.137.144).. 
  Creating /masterha if not exists.. Creating directory /masterha.. done.
   ok.
  Checking output directory is accessible or not..
   ok.
  Binlog found at /usr/local/mysql/data/, up to mysql-bin.000002
Thu May 17 21:58:14 2018 - [info] Master setting check done.
Thu May 17 21:58:14 2018 - [info] Checking SSH publickey authentication and checking recovery script configurations on all alive slave servers..
Thu May 17 21:58:14 2018 - [info]   Executing command : apply_diff_relay_logs --command=test --slave_user=‘root‘ --slave_host=192.168.137.145 --slave_ip=192.168.137.145 --slave_port=3306 --workdir=/masterha --target_version=5.7.21-log --manager_version=0.55 --relay_log_info=/usr/local/mysql/data/relay-log.info  --relay_dir=/usr/local/mysql/data/  --slave_pass=xxx
Thu May 17 21:58:14 2018 - [info]   Connecting to root@192.168.137.145(192.168.137.145:22).. 
Creating directory /masterha.. done.
  Checking slave recovery environment settings..
    Opening /usr/local/mysql/data/relay-log.info ... ok.
    Relay log found at /usr/local/mysql/binlog, up to mysql-relay-bin.000002
    Temporary relay log file is /usr/local/mysql/binlog/mysql-relay-bin.000002
    Testing mysql connection and privileges..mysql: [Warning] Using a password on the command line interface can be insecure.
 done.
    Testing mysqlbinlog output.. done.
    Cleaning up test file(s).. done.
Thu May 17 21:58:15 2018 - [info] Slaves settings check done.
Thu May 17 21:58:15 2018 - [info] 
192.168.137.144 (current master)
 +--192.168.137.145

Thu May 17 21:58:15 2018 - [info] Checking replication health on 192.168.137.145..
Thu May 17 21:58:15 2018 - [info]  ok.
Thu May 17 21:58:15 2018 - [warning] master_ip_failover_script is not defined.
Thu May 17 21:58:15 2018 - [warning] shutdown_script is not defined.
Thu May 17 21:58:15 2018 - [info] Got exit code 0 (Not master dead).

MySQL Replication Health is OK.

VIP

VIP恢复master1后, 重新启动manager后发现报错

技术分享图片

解决方法:按提示删除指定文件即可。

技术分享图片

 

MYSQL之MHA集群

标签:shutdown   trie   pos   recovery   debug   oba   方法   sap   bin   

原文地址:https://www.cnblogs.com/chenglee/p/9052168.html

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