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目录
前言
一、概述
1.1 概念
1.2 组成
1.3 特点
1.4 工作原理
二、构建MHA
2.1 ssh免密登录
2.2 主从复制
2.3 MHA安装
2.3.1所有节点安装perl环境
2.3..2 node
2.3.3 manager （只在mgt上装）
2.3.4 测试
2.3.5 故障恢复
总结
前言
MHA（Master High Availability）是一种用于MySQL和MariaDB数据库的高可用解决方案。它是由一个主节点（Master）和多个从节点（Slave）组成的集群，当主节点故障时，自动切换到一个可用的从节点上，以确保数据库的连续性和可用性。
提示：以下是本篇文章正文内容，下面案例可供参考
一、概述
1.1 概念
MHA（MasterHigh Availability）是一套优秀的MySQL高可用环境下故障切换和主从复制的软件。
MHA 的出现就是解决MySQL 单点的问题。
MySQL故障切换过程中，MHA能做到0-30秒内自动完成故障切换操作。
MHA能在故障切换的过程中最大程度上保证数据的一致性，以达到真正意义上的高可用。
1.2 组成
MHA manager
管理节点
MHA node
数据节点
每个节点上都需要安装
1.3 特点
自动故障切换过程中，MHA试图从宕机的主服务器上保存二进制日志，最大程度的保证数据不丢失
使用半同步复制，可以大大降低数据丢失的风险，如果只有一个slave已经收到了最新的二进制日志，MHA可以将最新的二进制日志应用于其他所有的slave服务器上，因此可以保证所有节点的数据一致性
目前MHA支持一主多从架构，最少三台服务，即一主两从
1.4 工作原理
从宕机崩溃的master 保存二进制日志事件（binlog events）；
识别含有最新的更新slave日志
应用差异的中继日志（relay log）到其他的slave
应用从master保存的二进制日志事件
提升一个slave为新的master
使其他的slave连接新的master进行复制
二、构建MHA
案例
192.168.156.3
manager（MHA）
mgt
192.168.156.4
master
master
192.168.156.5
slave
slave1
192.168.156.6
slave
slave2
每一台主机上全部安装mariadb
[root@localhost ~]# yum install -y mariadb mariadb-server
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile* base: mirrors.huaweicloud.com* epel: mirrors.bfsu.edu.cn* extras: mirrors.huaweicloud.com* updates: mirrors.huaweicloud.com
正在解决依赖关系
--> 正在检查事务
---> 软件包 mariadb.x86_64.1.5.5.68-1.el7 将被 安装
---> 软件包 mariadb-server.x86_64.1.5.5.68-1.el7 将被 安装
--> 正在处理依赖关系 perl-DBD-MySQL，它被软件包 1:mariadb-server-5.5.68-1.el7.x86_64 需要
--> 正在检查事务
---> 软件包 perl-DBD-MySQL.x86_64.0.4.023-6.el7 将被 安装
--> 解决依赖关系完成依赖关系解决====================================================================================================================================================Package 架构 版本 源 大小
====================================================================================================================================================
正在安装:mariadb x86_64 1:5.5.68-1.el7 base 8.8 Mmariadb-server x86_64 1:5.5.68-1.el7 base 11 M
为依赖而安装:perl-DBD-MySQL x86_64 4.023-6.el7 base 140 k事务概要
====================================================================================================================================================
安装 2 软件包 (+1 依赖软件包)总下载量：20 M
安装大小：107 M
Downloading packages:
(1/3): perl-DBD-MySQL-4.023-6.el7.x86_64.rpm | 140 kB 00:00:00
(2/3): mariadb-server-5.5.68-1.el7.x86_64.rpm | 11 MB 00:00:03
(3/3): mariadb-5.5.68-1.el7.x86_64.rpm | 8.8 MB 00:00:16
----------------------------------------------------------------------------------------------------------------------------------------------------
总计 1.2 MB/s | 20 MB 00:00:16
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction正在安装 : 1:mariadb-5.5.68-1.el7.x86_64 1/3 正在安装 : perl-DBD-MySQL-4.023-6.el7.x86_64 2/3 正在安装 : 1:mariadb-server-5.5.68-1.el7.x86_64 3/3 验证中 : 1:mariadb-server-5.5.68-1.el7.x86_64 1/3 验证中 : perl-DBD-MySQL-4.023-6.el7.x86_64 2/3 验证中 : 1:mariadb-5.5.68-1.el7.x86_64 3/3 已安装:mariadb.x86_64 1:5.5.68-1.el7 mariadb-server.x86_64 1:5.5.68-1.el7 作为依赖被安装:perl-DBD-MySQL.x86_64 0:4.023-6.el7 完毕！
每台主机分别改名为mgt master slave1 slave2
进入配置文件 /etc/hosts ,添加主机
将文件 /etc/hosts 分别拷贝给其它三台机子
[root@mgt ~]# scp /etc/hosts 192.168.156.4:/etc/
The authenticity of host '192.168.156.4 (192.168.156.4)' can't be established.
ECDSA key fingerprint is SHA256:UYOTDfnPCXDYRisvqKkyxQEEiuZnt6vtyjxyIwTT10M.
ECDSA key fingerprint is MD5:43:59:03:5c:67:80:66:f1:84:6e:ab:9d:d9:1a:b4:90.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.156.4' (ECDSA) to the list of known hosts.
root@192.168.156.4's password:
hosts 100% 240 80.2KB/s 00:00
[root@mgt ~]# scp /etc/hosts 192.168.156.5:/etc/
The authenticity of host '192.168.156.5 (192.168.156.5)' can't be established.
ECDSA key fingerprint is SHA256:UYOTDfnPCXDYRisvqKkyxQEEiuZnt6vtyjxyIwTT10M.
ECDSA key fingerprint is MD5:43:59:03:5c:67:80:66:f1:84:6e:ab:9d:d9:1a:b4:90.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.156.5' (ECDSA) to the list of known hosts.
root@192.168.156.5's password:
hosts 100% 240 92.0KB/s 00:00
[root@mgt ~]# scp /etc/hosts 192.168.156.8:/etc/
The authenticity of host '192.168.156.8 (192.168.156.8)' can't be established.
ECDSA key fingerprint is SHA256:UYOTDfnPCXDYRisvqKkyxQEEiuZnt6vtyjxyIwTT10M.
ECDSA key fingerprint is MD5:43:59:03:5c:67:80:66:f1:84:6e:ab:9d:d9:1a:b4:90.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.156.8' (ECDSA) to the list of known hosts.
root@192.168.156.8's password:
hosts 测试（分别在每一台主机上测试）mgt
[root@mgt ~]# ping master
PING master (192.168.156.4) 56(84) bytes of data.
64 bytes from master (192.168.156.4): icmp_seq=1 ttl=64 time=0.513 ms
64 bytes from master (192.168.156.4): icmp_seq=2 ttl=64 time=0.825 ms
^C
--- master ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1003ms
rtt min/avg/max/mdev = 0.513/0.669/0.825/0.156 ms
[root@mgt ~]# ping slave1
PING slave1 (192.168.156.5) 56(84) bytes of data.
64 bytes from slave1 (192.168.156.5): icmp_seq=1 ttl=64 time=0.659 ms
64 bytes from slave1 (192.168.156.5): icmp_seq=2 ttl=64 time=0.648 ms
^C
--- slave1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.648/0.653/0.659/0.026 ms
[root@mgt ~]# ping slave2
PING slave2 (192.168.156.8) 56(84) bytes of data.
64 bytes from slave2 (192.168.156.8): icmp_seq=1 ttl=64 time=0.532 ms
64 bytes from slave2 (192.168.156.8): icmp_seq=2 ttl=64 time=0.756 ms
^C
--- slave2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.532/0.644/0.756/0.112 ms
master
[root@master ~]# ping mgt
PING mgt (192.168.156.10) 56(84) bytes of data.
64 bytes from mgt (192.168.156.10): icmp_seq=1 ttl=64 time=0.339 ms
64 bytes from mgt (192.168.156.10): icmp_seq=2 ttl=64 time=0.676 ms
^C
--- mgt ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.339/0.507/0.676/0.170 ms
[root@master ~]# ping slave1
PING slave1 (192.168.156.5) 56(84) bytes of data.
64 bytes from slave1 (192.168.156.5): icmp_seq=1 ttl=64 time=0.866 ms
64 bytes from slave1 (192.168.156.5): icmp_seq=2 ttl=64 time=0.451 ms
^C
--- slave1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.451/0.658/0.866/0.209 ms
[root@master ~]# ping slave2
PING slave2 (192.168.156.8) 56(84) bytes of data.
64 bytes from slave2 (192.168.156.8): icmp_seq=1 ttl=64 time=1.00 ms
64 bytes from slave2 (192.168.156.8): icmp_seq=2 ttl=64 time=0.489 ms
^C
--- slave2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 0.489/0.746/1.003/0.257 ms
slave1
[root@slave1 ~]# ping mgt
PING mgt (192.168.156.10) 56(84) bytes of data.
64 bytes from mgt (192.168.156.10): icmp_seq=1 ttl=64 time=0.380 ms
64 bytes from mgt (192.168.156.10): icmp_seq=2 ttl=64 time=0.982 ms
^C
--- mgt ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.380/0.681/0.982/0.301 ms
[root@slave1 ~]# ping master
PING master (192.168.156.4) 56(84) bytes of data.
64 bytes from master (192.168.156.4): icmp_seq=1 ttl=64 time=0.517 ms
64 bytes from master (192.168.156.4): icmp_seq=2 ttl=64 time=0.287 ms
^C
--- master ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 0.287/0.402/0.517/0.115 ms
[root@slave1 ~]# ping slave2
PING slave2 (192.168.156.8) 56(84) bytes of data.
64 bytes from slave2 (192.168.156.8): icmp_seq=1 ttl=64 time=1.48 ms
64 bytes from slave2 (192.168.156.8): icmp_seq=2 ttl=64 time=0.840 ms
^C
--- slave2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.840/1.163/1.487/0.325 ms
slave2
[root@slave2 ~]# ping mgt
PING mgt (192.168.156.10) 56(84) bytes of data.
64 bytes from mgt (192.168.156.10): icmp_seq=1 ttl=64 time=0.422 ms
64 bytes from mgt (192.168.156.10): icmp_seq=2 ttl=64 time=0.437 ms
64 bytes from mgt (192.168.156.10): icmp_seq=3 ttl=64 time=0.574 ms
64 bytes from mgt (192.168.156.10): icmp_seq=4 ttl=64 time=0.874 ms
64 bytes from mgt (192.168.156.10): icmp_seq=5 ttl=64 time=0.735 ms
^C
--- mgt ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4013ms
rtt min/avg/max/mdev = 0.422/0.608/0.874/0.175 ms
[root@slave2 ~]# ping master
PING master (192.168.156.4) 56(84) bytes of data.
64 bytes from master (192.168.156.4): icmp_seq=1 ttl=64 time=0.682 ms
64 bytes from master (192.168.156.4): icmp_seq=2 ttl=64 time=0.685 ms
64 bytes from master (192.168.156.4): icmp_seq=3 ttl=64 time=0.789 ms
^C
--- master ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2033ms
rtt min/avg/max/mdev = 0.682/0.718/0.789/0.058 ms
[root@slave2 ~]# ping slave1
PING slave1 (192.168.156.5) 56(84) bytes of data.
64 bytes from slave1 (192.168.156.5): icmp_seq=1 ttl=64 time=0.477 ms
64 bytes from slave1 (192.168.156.5): icmp_seq=2 ttl=64 time=0.779 ms
64 bytes from slave1 (192.168.156.5): icmp_seq=3 ttl=64 time=0.654 ms
64 bytes from slave1 (192.168.156.5): icmp_seq=4 ttl=64 time=0.728 ms
64 bytes from slave1 (192.168.156.5): icmp_seq=5 ttl=64 time=0.756 ms
64 bytes from slave1 (192.168.156.5): icmp_seq=6 ttl=64 time=0.904 ms
^C
--- slave1 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5018ms
rtt min/avg/max/mdev = 0.477/0.716/0.904/0.132 ms
2.1 ssh免密登录
所有节点配置hosts
192.168.156.3 mgt
192.168.156.4 master
192.168.156.5 slave1
192.168.156.6 slave2
192.168.156.3
ssh-keygen
for i in 4 5 6;do ssh-copy-id root@192.168.156.$i;done
192.168.156.4
ssh-keygen
for i in 3 5 6;do ssh-copy-id root@192.168.156.$i;done
192.168.156.5
ssh-keygen
for i in 4 3 6;do ssh-copy-id root@192.168.156.$i;done
192.168.156.6
ssh-keygen
for i in 4 5 3;do ssh-copy-id root@192.168.156.$i;done
测试
for i in 3 4 5;do ssh 192.168.156.$i hostname;done
[root@mgt ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:KKd91Xo5xRM8gTnd4xmNU1Ug+k3bCqu/Dafc5GV711Y root@mgt
The key's randomart image is:
+---[RSA 2048]----+
| .+o=B|
| .+o++o|
| . .*.+|
| . o + B |
| . o S . + * .|
| = . . = oE|
| . . . . * + =|
| . + X o*|
| ..=.+oo|
+----[SHA256]-----+[root@mgt ~]# ssh-copy-id mgt
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host 'mgt (192.168.156.3)' can't be established.
ECDSA key fingerprint is SHA256:UYOTDfnPCXDYRisvqKkyxQEEiuZnt6vtyjxyIwTT10M.
ECDSA key fingerprint is MD5:43:59:03:5c:67:80:66:f1:84:6e:ab:9d:d9:1a:b4:90.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@mgt's password: Number of key(s) added: 1Now try logging into the machine, with: "ssh 'mgt'"
and check to make sure that only the key(s) you wanted were added.
验证（分别在每一台机子上验证）
[root@mgt ~]# ssh master
The authenticity of host 'master (192.168.156.4)' can't be established.
ECDSA key fingerprint is SHA256:UYOTDfnPCXDYRisvqKkyxQEEiuZnt6vtyjxyIwTT10M.
ECDSA key fingerprint is MD5:43:59:03:5c:67:80:66:f1:84:6e:ab:9d:d9:1a:b4:90.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'master' (ECDSA) to the list of known hosts.
Last login: Wed Aug 16 02:16:32 2023 from 192.168.156.1
[root@master ~]# exit
登出
Connection to master closed.
[root@mgt ~]# ssh slave1
The authenticity of host 'slave1 (192.168.156.5)' can't be established.
ECDSA key fingerprint is SHA256:UYOTDfnPCXDYRisvqKkyxQEEiuZnt6vtyjxyIwTT10M.
ECDSA key fingerprint is MD5:43:59:03:5c:67:80:66:f1:84:6e:ab:9d:d9:1a:b4:90.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'slave1' (ECDSA) to the list of known hosts.
Last login: Wed Aug 16 02:17:00 2023 from 192.168.156.1
[root@slave1 ~]# exit
登出
Connection to slave1 closed.
[root@mgt ~]# ssh slave2
The authenticity of host 'slave2 (192.168.156.6)' can't be established.
ECDSA key fingerprint is SHA256:UYOTDfnPCXDYRisvqKkyxQEEiuZnt6vtyjxyIwTT10M.
ECDSA key fingerprint is MD5:43:59:03:5c:67:80:66:f1:84:6e:ab:9d:d9:1a:b4:90.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'slave2' (ECDSA) to the list of known hosts.
Last login: Wed Aug 16 02:17:30 2023 from 192.168.156.1
[root@slave2 ~]# exit
登出
Connection to slave2 closed.
[root@mgt ~]# ssh mgt
Last login: Wed Aug 16 02:16:02 2023 from 192.168.156.1
[root@mgt ~]# exit
登出
Connection to mgt closed.
2.2 主从复制
master
slave1
slave2
启动服务（三台都启动）
master
查看状态
slave1
slave2
验证
登录master ，在master 上创建库
登录slave1 查看
登录slave2 查看
2.3 MHA安装
2.3.1所有节点安装perl环境
yum install epel-release -y
yum -y install perl-DBD-MySQL perl-ExtUtils-MakeMaker perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager perl-Time-HiRes perl-CPAN
[root@mgt ~]# yum install epel-release -y
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile* base: mirrors.huaweicloud.com* extras: mirrors.tuna.tsinghua.edu.cn* updates: mirrors.tuna.tsinghua.edu.cn
正在解决依赖关系
--> 正在检查事务
---> 软件包 epel-release.noarch.0.7-11 将被 安装
--> 解决依赖关系完成依赖关系解决=========================================================================================================================================================================Package 架构 版本 源 大小
=========================================================================================================================================================================
正在安装:epel-release noarch 7-11 extras 15 k事务概要
=========================================================================================================================================================================
安装 1 软件包总下载量：15 k
安装大小：24 k
Downloading packages:
epel-release-7-11.noarch.rpm | 15 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction正在安装 : epel-release-7-11.noarch 1/1 验证中 : epel-release-7-11.noarch 1/1 已安装:epel-release.noarch 0:7-11 完毕！
[root@mgt ~]# yum install epel-release -y
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile* base: mirrors.aliyun.com* epel: mirror-icn.yuki.net.uk* extras: mirrors.cqu.edu.cn* updates: mirrors.jlu.edu.cn
正在解决依赖关系
--> 正在检查事务
---> 软件包 epel-release.noarch.0.7-11 将被 升级
---> 软件包 epel-release.noarch.0.7-14 将被 更新
--> 解决依赖关系完成依赖关系解决=========================================================================================================================================================================Package 架构 版本 源 大小
=========================================================================================================================================================================
正在更新:epel-release noarch 7-14 epel 15 k事务概要
=========================================================================================================================================================================
升级 1 软件包总下载量：15 k
Downloading packages:
epel/x86_64/prestodelta | 1.2 kB 00:00:00
警告：/var/cache/yum/x86_64/7/epel/packages/epel-release-7-14.noarch.rpm: 头V4 RSA/SHA256 Signature, 密钥 ID 352c64e5: NOKEY
epel-release-7-14.noarch.rpm 的公钥尚未安装
epel-release-7-14.noarch.rpm | 15 kB 00:00:00
从 file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 检索密钥
导入 GPG key 0x352C64E5:用户ID : "Fedora EPEL (7) <epel@fedoraproject.org>"指纹 : 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5软件包 : epel-release-7-11.noarch (@extras)来自 : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction正在更新 : epel-release-7-14.noarch 1/2 清理 : epel-release-7-11.noarch 2/2 验证中 : epel-release-7-14.noarch 1/2 验证中 : epel-release-7-11.noarch 2/2 更新完毕:epel-release.noarch 0:7-14 完毕！
[root@mgt ~]# yum -y install perl-DBD-MySQL perl-ExtUtils-MakeMaker perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager perl-Time-HiRes perl-CPAN
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile* base: mirrors.bfsu.edu.cn* epel: mirrors.bfsu.edu.cn* extras: mirrors.bfsu.edu.cn* updates: mirrors.bfsu.edu.cn
软件包 perl-DBD-MySQL-4.023-6.el7.x86_64 已安装并且是最新版本
软件包 4:perl-Time-HiRes-1.9725-3.el7.x86_64 已安装并且是最新版本
正在解决依赖关系
--> 正在检查事务
---> 软件包 perl-CPAN.noarch.0.1.9800-299.el7_9 将被 安装
--> 正在处理依赖关系 perl(local::lib)，它被软件包 perl-CPAN-1.9800-299.el7_9.noarch 需要
--> 正在处理依赖关系 perl(Digest::SHA)，它被软件包 perl-CPAN-1.9800-299.el7_9.noarch 需要
---> 软件包 perl-Config-Tiny.noarch.0.2.14-7.el7 将被 安装
---> 软件包 perl-ExtUtils-MakeMaker.noarch.0.6.68-3.el7 将被 安装
--> 正在处理依赖关系 perl(ExtUtils::Packlist)，它被软件包 perl-ExtUtils-MakeMaker-6.68-3.el7.noarch 需要
--> 正在处理依赖关系 perl(ExtUtils::Manifest)，它被软件包 perl-ExtUtils-MakeMaker-6.68-3.el7.noarch 需要
--> 正在处理依赖关系 perl(ExtUtils::Installed)，它被软件包 perl-ExtUtils-MakeMaker-6.68-3.el7.noarch 需要
--> 正在处理依赖关系 perl(ExtUtils::Install)，它被软件包 perl-ExtUtils-MakeMaker-6.68-3.el7.noarch 需要
---> 软件包 perl-Log-Dispatch.noarch.0.2.41-1.el7.1 将被 安装
--> 正在处理依赖关系 perl(Params::Validate) >= 0.15，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
--> 正在处理依赖关系 perl(Sys::Syslog) >= 0.25，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
--> 正在处理依赖关系 perl(Class::Load)，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
--> 正在处理依赖关系 perl(MIME::Lite)，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
--> 正在处理依赖关系 perl(Mail::Send)，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
--> 正在处理依赖关系 perl(Mail::Sender)，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
--> 正在处理依赖关系 perl(Mail::Sendmail)，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
--> 正在处理依赖关系 perl(Params::Validate)，它被软件包 perl-Log-Dispatch-2.41-1.el7.1.noarch 需要
---> 软件包 perl-Parallel-ForkManager.noarch.0.1.18-2.el7 将被 安装
--> 正在检查事务
---> 软件包 perl-Class-Load.noarch.0.0.20-3.el7 将被 安装
--> 正在处理依赖关系 perl(Package::Stash) >= 0.14，它被软件包 perl-Class-Load-0.20-3.el7.noarch 需要
--> 正在处理依赖关系 perl(Module::Runtime) >= 0.012，它被软件包 perl-Class-Load-0.20-3.el7.noarch 需要
--> 正在处理依赖关系 perl(Module::Implementation) >= 0.04，它被软件包 perl-Class-Load-0.20-3.el7.noarch 需要
--> 正在处理依赖关系 perl(Try::Tiny)，它被软件包 perl-Class-Load-0.20-3.el7.noarch 需要
--> 正在处理依赖关系 perl(Module::Runtime)，它被软件包 perl-Class-Load-0.20-3.el7.noarch 需要
--> 正在处理依赖关系 perl(Data::OptList)，它被软件包 perl-Class-Load-0.20-3.el7.noarch 需要
---> 软件包 perl-Digest-SHA.x86_64.1.5.85-4.el7 将被 安装
--> 正在处理依赖关系 perl(Digest::base)，它被软件包 1:perl-Digest-SHA-5.85-4.el7.x86_64 需要
---> 软件包 perl-ExtUtils-Install.noarch.0.1.58-299.el7_9 将被 安装
--> 正在处理依赖关系 perl-devel，它被软件包 perl-ExtUtils-Install-1.58-299.el7_9.noarch 需要
---> 软件包 perl-ExtUtils-Manifest.noarch.0.1.61-244.el7 将被 安装
---> 软件包 perl-MIME-Lite.noarch.0.3.030-1.el7 将被 安装
--> 正在处理依赖关系 perl(MIME::Types) >= 1.28，它被软件包 perl-MIME-Lite-3.030-1.el7.noarch 需要
--> 正在处理依赖关系 perl(Email::Date::Format)，它被软件包 perl-MIME-Lite-3.030-1.el7.noarch 需要
---> 软件包 perl-Mail-Sender.noarch.0.0.8.23-1.el7 将被 安装
--> 正在处理依赖关系 perl(IO::Socket::SSL)，它被软件包 perl-Mail-Sender-0.8.23-1.el7.noarch 需要
--> 正在处理依赖关系 perl(Net::SSLeay)，它被软件包 perl-Mail-Sender-0.8.23-1.el7.noarch 需要
---> 软件包 perl-Mail-Sendmail.noarch.0.0.79-21.el7 将被 安装
---> 软件包 perl-MailTools.noarch.0.2.12-2.el7 将被 安装
--> 正在处理依赖关系 perl(Net::SMTP::SSL)，它被软件包 perl-MailTools-2.12-2.el7.noarch 需要
--> 正在处理依赖关系 perl(Date::Parse)，它被软件包 perl-MailTools-2.12-2.el7.noarch 需要
--> 正在处理依赖关系 perl(Date::Format)，它被软件包 perl-MailTools-2.12-2.el7.noarch 需要
---> 软件包 perl-Params-Validate.x86_64.0.1.08-4.el7 将被 安装
---> 软件包 perl-Sys-Syslog.x86_64.0.0.33-3.el7 将被 安装
---> 软件包 perl-local-lib.noarch.0.1.008010-4.el7 将被 安装
--> 正在检查事务
---> 软件包 perl-Data-OptList.noarch.0.0.107-9.el7 将被 安装
--> 正在处理依赖关系 perl(Sub::Install) >= 0.921，它被软件包 perl-Data-OptList-0.107-9.el7.noarch 需要
--> 正在处理依赖关系 perl(Params::Util)，它被软件包 perl-Data-OptList-0.107-9.el7.noarch 需要
---> 软件包 perl-Digest.noarch.0.1.17-245.el7 将被 安装
---> 软件包 perl-Email-Date-Format.noarch.0.1.002-15.el7 将被 安装
---> 软件包 perl-IO-Socket-SSL.noarch.0.1.94-7.el7 将被 安装
--> 正在处理依赖关系 perl(IO::Socket::IP) >= 0.20，它被软件包 perl-IO-Socket-SSL-1.94-7.el7.noarch 需要
--> 正在处理依赖关系 perl(Net::LibIDN)，它被软件包 perl-IO-Socket-SSL-1.94-7.el7.noarch 需要
--> 正在处理依赖关系 perl(Mozilla::CA)，它被软件包 perl-IO-Socket-SSL-1.94-7.el7.noarch 需要
---> 软件包 perl-MIME-Types.noarch.0.1.38-2.el7 将被 安装
---> 软件包 perl-Module-Implementation.noarch.0.0.06-6.el7 将被 安装
---> 软件包 perl-Module-Runtime.noarch.0.0.013-4.el7 将被 安装
---> 软件包 perl-Net-SMTP-SSL.noarch.0.1.01-13.el7 将被 安装
---> 软件包 perl-Net-SSLeay.x86_64.0.1.55-6.el7 将被 安装
---> 软件包 perl-Package-Stash.noarch.0.0.34-2.el7 将被 安装
--> 正在处理依赖关系 perl(Package::Stash::XS) >= 0.26，它被软件包 perl-Package-Stash-0.34-2.el7.noarch 需要
--> 正在处理依赖关系 perl(Package::DeprecationManager)，它被软件包 perl-Package-Stash-0.34-2.el7.noarch 需要
---> 软件包 perl-TimeDate.noarch.1.2.30-2.el7 将被 安装
---> 软件包 perl-Try-Tiny.noarch.0.0.12-2.el7 将被 安装
---> 软件包 perl-devel.x86_64.4.5.16.3-299.el7_9 将被 安装
--> 正在处理依赖关系 systemtap-sdt-devel，它被软件包 4:perl-devel-5.16.3-299.el7_9.x86_64 需要
--> 正在处理依赖关系 perl(ExtUtils::ParseXS)，它被软件包 4:perl-devel-5.16.3-299.el7_9.x86_64 需要
--> 正在处理依赖关系 libdb-devel，它被软件包 4:perl-devel-5.16.3-299.el7_9.x86_64 需要
--> 正在处理依赖关系 gdbm-devel，它被软件包 4:perl-devel-5.16.3-299.el7_9.x86_64 需要
--> 正在检查事务
---> 软件包 gdbm-devel.x86_64.0.1.10-8.el7 将被 安装
---> 软件包 libdb-devel.x86_64.0.5.3.21-25.el7 将被 安装
---> 软件包 perl-ExtUtils-ParseXS.noarch.1.3.18-3.el7 将被 安装
---> 软件包 perl-IO-Socket-IP.noarch.0.0.21-5.el7 将被 安装
---> 软件包 perl-Mozilla-CA.noarch.0.20130114-5.el7 将被 安装
---> 软件包 perl-Net-LibIDN.x86_64.0.0.12-15.el7 将被 安装
---> 软件包 perl-Package-DeprecationManager.noarch.0.0.13-7.el7 将被 安装
--> 正在处理依赖关系 perl(List::MoreUtils)，它被软件包 perl-Package-DeprecationManager-0.13-7.el7.noarch 需要
---> 软件包 perl-Package-Stash-XS.x86_64.0.0.26-3.el7 将被 安装
---> 软件包 perl-Params-Util.x86_64.0.1.07-6.el7 将被 安装
---> 软件包 perl-Sub-Install.noarch.0.0.926-6.el7 将被 安装
---> 软件包 systemtap-sdt-devel.x86_64.0.4.0-13.el7 将被 安装
--> 正在处理依赖关系 pyparsing，它被软件包 systemtap-sdt-devel-4.0-13.el7.x86_64 需要
--> 正在检查事务
---> 软件包 perl-List-MoreUtils.x86_64.0.0.33-9.el7 将被 安装
---> 软件包 pyparsing.noarch.0.1.5.6-9.el7 将被 安装
--> 解决依赖关系完成依赖关系解决=========================================================================================================================================================================Package 架构 版本 源 大小
=========================================================================================================================================================================
正在安装:perl-CPAN noarch 1.9800-299.el7_9 updates 293 kperl-Config-Tiny noarch 2.14-7.el7 base 25 kperl-ExtUtils-MakeMaker noarch 6.68-3.el7 base 275 kperl-Log-Dispatch noarch 2.41-1.el7.1 epel 82 kperl-Parallel-ForkManager noarch 1.18-2.el7 epel 28 k
为依赖而安装:gdbm-devel x86_64 1.10-8.el7 base 47 klibdb-devel x86_64 5.3.21-25.el7 base 39 kperl-Class-Load noarch 0.20-3.el7 base 27 kperl-Data-OptList noarch 0.107-9.el7 base 23 kperl-Digest noarch 1.17-245.el7 base 23 kperl-Digest-SHA x86_64 1:5.85-4.el7 base 58 kperl-Email-Date-Format noarch 1.002-15.el7 epel 17 kperl-ExtUtils-Install noarch 1.58-299.el7_9 updates 75 kperl-ExtUtils-Manifest noarch 1.61-244.el7 base 31 kperl-ExtUtils-ParseXS noarch 1:3.18-3.el7 base 77 kperl-IO-Socket-IP noarch 0.21-5.el7 base 36 kperl-IO-Socket-SSL noarch 1.94-7.el7 base 115 kperl-List-MoreUtils x86_64 0.33-9.el7 base 58 kperl-MIME-Lite noarch 3.030-1.el7 epel 96 kperl-MIME-Types noarch 1.38-2.el7 epel 38 kperl-Mail-Sender noarch 0.8.23-1.el7 epel 59 kperl-Mail-Sendmail noarch 0.79-21.el7 epel 29 kperl-MailTools noarch 2.12-2.el7 base 108 kperl-Module-Implementation noarch 0.06-6.el7 base 17 kperl-Module-Runtime noarch 0.013-4.el7 base 19 kperl-Mozilla-CA noarch 20130114-5.el7 base 11 kperl-Net-LibIDN x86_64 0.12-15.el7 base 28 kperl-Net-SMTP-SSL noarch 1.01-13.el7 base 9.1 kperl-Net-SSLeay x86_64 1.55-6.el7 base 285 kperl-Package-DeprecationManager noarch 0.13-7.el7 base 18 kperl-Package-Stash noarch 0.34-2.el7 base 34 kperl-Package-Stash-XS x86_64 0.26-3.el7 base 31 kperl-Params-Util x86_64 1.07-6.el7 base 38 kperl-Params-Validate x86_64 1.08-4.el7 base 69 kperl-Sub-Install noarch 0.926-6.el7 base 21 kperl-Sys-Syslog x86_64 0.33-3.el7 base 42 kperl-TimeDate noarch 1:2.30-2.el7 base 52 kperl-Try-Tiny noarch 0.12-2.el7 base 23 kperl-devel x86_64 4:5.16.3-299.el7_9 updates 454 kperl-local-lib noarch 1.008010-4.el7 base 64 kpyparsing noarch 1.5.6-9.el7 base 94 ksystemtap-sdt-devel x86_64 4.0-13.el7 base 76 k事务概要
=========================================================================================================================================================================
安装 5 软件包 (+37 依赖软件包)总下载量：3.0 M
安装大小：7.5 M
Downloading packages:
(1/42): gdbm-devel-1.10-8.el7.x86_64.rpm | 47 kB 00:00:00
(2/42): perl-CPAN-1.9800-299.el7_9.noarch.rpm | 293 kB 00:00:00
(3/42): perl-Data-OptList-0.107-9.el7.noarch.rpm | 23 kB 00:00:00
(4/42): perl-Digest-SHA-5.85-4.el7.x86_64.rpm | 58 kB 00:00:00
(5/42): libdb-devel-5.3.21-25.el7.x86_64.rpm | 39 kB 00:00:00
(6/42): perl-Class-Load-0.20-3.el7.noarch.rpm | 27 kB 00:00:00
warning: /var/cache/yum/x86_64/7/epel/packages/perl-Email-Date-Format-1.002-15.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY
perl-Email-Date-Format-1.002-15.el7.noarch.rpm 的公钥尚未安装
(7/42): perl-Email-Date-Format-1.002-15.el7.noarch.rpm | 17 kB 00:00:00
(8/42): perl-Config-Tiny-2.14-7.el7.noarch.rpm | 25 kB 00:00:00
(9/42): perl-ExtUtils-MakeMaker-6.68-3.el7.noarch.rpm | 275 kB 00:00:00
(10/42): perl-ExtUtils-Manifest-1.61-244.el7.noarch.rpm | 31 kB 00:00:00
(11/42): perl-IO-Socket-SSL-1.94-7.el7.noarch.rpm | 115 kB 00:00:00
(12/42): perl-IO-Socket-IP-0.21-5.el7.noarch.rpm | 36 kB 00:00:00
(13/42): perl-List-MoreUtils-0.33-9.el7.x86_64.rpm | 58 kB 00:00:00
(14/42): perl-Digest-1.17-245.el7.noarch.rpm | 23 kB 00:00:00
(15/42): perl-ExtUtils-Install-1.58-299.el7_9.noarch.rpm | 75 kB 00:00:00
(16/42): perl-ExtUtils-ParseXS-3.18-3.el7.noarch.rpm | 77 kB 00:00:00
(17/42): perl-Log-Dispatch-2.41-1.el7.1.noarch.rpm | 82 kB 00:00:00
(18/42): perl-MIME-Lite-3.030-1.el7.noarch.rpm | 96 kB 00:00:00
(19/42): perl-MIME-Types-1.38-2.el7.noarch.rpm | 38 kB 00:00:00
(20/42): perl-Mail-Sender-0.8.23-1.el7.noarch.rpm | 59 kB 00:00:00
(21/42): perl-Mail-Sendmail-0.79-21.el7.noarch.rpm | 29 kB 00:00:00
(22/42): perl-Module-Implementation-0.06-6.el7.noarch.rpm | 17 kB 00:00:00
(23/42): perl-Mozilla-CA-20130114-5.el7.noarch.rpm | 11 kB 00:00:00
(24/42): perl-Net-SMTP-SSL-1.01-13.el7.noarch.rpm | 9.1 kB 00:00:00
(25/42): perl-Net-LibIDN-0.12-15.el7.x86_64.rpm | 28 kB 00:00:00
(26/42): perl-Net-SSLeay-1.55-6.el7.x86_64.rpm | 285 kB 00:00:00
(27/42): perl-Package-DeprecationManager-0.13-7.el7.noarch.rpm | 18 kB 00:00:00
(28/42): perl-Parallel-ForkManager-1.18-2.el7.noarch.rpm | 28 kB 00:00:00
(29/42): perl-Package-Stash-XS-0.26-3.el7.x86_64.rpm | 31 kB 00:00:00
(30/42): perl-Package-Stash-0.34-2.el7.noarch.rpm | 34 kB 00:00:00
(31/42): perl-Params-Util-1.07-6.el7.x86_64.rpm | 38 kB 00:00:00
(32/42): perl-Params-Validate-1.08-4.el7.x86_64.rpm | 69 kB 00:00:00
(33/42): perl-Sys-Syslog-0.33-3.el7.x86_64.rpm | 42 kB 00:00:00
(34/42): perl-TimeDate-2.30-2.el7.noarch.rpm | 52 kB 00:00:00
(35/42): perl-Try-Tiny-0.12-2.el7.noarch.rpm | 23 kB 00:00:00
(36/42): perl-devel-5.16.3-299.el7_9.x86_64.rpm | 454 kB 00:00:00
(37/42): perl-local-lib-1.008010-4.el7.noarch.rpm | 64 kB 00:00:00
(38/42): perl-Module-Runtime-0.013-4.el7.noarch.rpm | 19 kB 00:00:00
(39/42): perl-MailTools-2.12-2.el7.noarch.rpm | 108 kB 00:00:00
(40/42): systemtap-sdt-devel-4.0-13.el7.x86_64.rpm | 76 kB 00:00:00
(41/42): pyparsing-1.5.6-9.el7.noarch.rpm | 94 kB 00:00:00
(42/42): perl-Sub-Install-0.926-6.el7.noarch.rpm | 21 kB 00:00:00
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------
总计 1.4 MB/s | 3.0 MB 00:00:02
从 file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 检索密钥
导入 GPG key 0x352C64E5:用户ID : "Fedora EPEL (7) <epel@fedoraproject.org>"指纹 : 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5软件包 : epel-release-7-11.noarch (@extras)来自 : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction正在安装 : perl-Sub-Install-0.926-6.el7.noarch 1/42 正在安装 : perl-Net-SSLeay-1.55-6.el7.x86_64 2/42 正在安装 : perl-Params-Util-1.07-6.el7.x86_64 3/42 正在安装 : perl-Try-Tiny-0.12-2.el7.noarch 4/42 正在安装 : perl-Module-Runtime-0.013-4.el7.noarch 5/42 正在安装 : perl-Module-Implementation-0.06-6.el7.noarch 6/42 正在安装 : perl-Params-Validate-1.08-4.el7.x86_64 7/42 正在安装 : perl-Data-OptList-0.107-9.el7.noarch 8/42 正在安装 : perl-Email-Date-Format-1.002-15.el7.noarch 9/42 正在安装 : perl-Digest-1.17-245.el7.noarch 10/42 正在安装 : 1:perl-Digest-SHA-5.85-4.el7.x86_64 11/42 正在安装 : perl-Net-LibIDN-0.12-15.el7.x86_64 12/42 正在安装 : 1:perl-TimeDate-2.30-2.el7.noarch 13/42 正在安装 : perl-ExtUtils-Manifest-1.61-244.el7.noarch 14/42 正在安装 : perl-Package-Stash-XS-0.26-3.el7.x86_64 15/42 正在安装 : perl-IO-Socket-IP-0.21-5.el7.noarch 16/42 正在安装 : perl-MIME-Types-1.38-2.el7.noarch 17/42 正在安装 : perl-MIME-Lite-3.030-1.el7.noarch 18/42 正在安装 : perl-Mozilla-CA-20130114-5.el7.noarch 19/42 正在安装 : perl-IO-Socket-SSL-1.94-7.el7.noarch 20/42 正在安装 : perl-Mail-Sender-0.8.23-1.el7.noarch 21/42 正在安装 : perl-Net-SMTP-SSL-1.01-13.el7.noarch 22/42 正在安装 : perl-MailTools-2.12-2.el7.noarch 23/42 正在安装 : perl-List-MoreUtils-0.33-9.el7.x86_64 24/42 正在安装 : perl-Package-DeprecationManager-0.13-7.el7.noarch 25/42 正在安装 : perl-Package-Stash-0.34-2.el7.noarch 26/42 正在安装 : perl-Class-Load-0.20-3.el7.noarch 27/42 正在安装 : perl-Sys-Syslog-0.33-3.el7.x86_64 28/42 正在安装 : gdbm-devel-1.10-8.el7.x86_64 29/42 正在安装 : pyparsing-1.5.6-9.el7.noarch 30/42 正在安装 : systemtap-sdt-devel-4.0-13.el7.x86_64 31/42 正在安装 : perl-Mail-Sendmail-0.79-21.el7.noarch 32/42 正在安装 : libdb-devel-5.3.21-25.el7.x86_64 33/42 正在安装 : perl-ExtUtils-MakeMaker-6.68-3.el7.noarch 34/42 正在安装 : perl-ExtUtils-Install-1.58-299.el7_9.noarch 35/42 正在安装 : 1:perl-ExtUtils-ParseXS-3.18-3.el7.noarch 36/42 正在安装 : 4:perl-devel-5.16.3-299.el7_9.x86_64 37/42 正在安装 : perl-local-lib-1.008010-4.el7.noarch 38/42 正在安装 : perl-CPAN-1.9800-299.el7_9.noarch 39/42 正在安装 : perl-Log-Dispatch-2.41-1.el7.1.noarch 40/42 正在安装 : perl-Config-Tiny-2.14-7.el7.noarch 41/42 正在安装 : perl-Parallel-ForkManager-1.18-2.el7.noarch 42/42 验证中 : perl-local-lib-1.008010-4.el7.noarch 1/42 验证中 : perl-Module-Runtime-0.013-4.el7.noarch 2/42 验证中 : libdb-devel-5.3.21-25.el7.x86_64 3/42 验证中 : perl-Mail-Sendmail-0.79-21.el7.noarch 4/42 验证中 : perl-MailTools-2.12-2.el7.noarch 5/42 验证中 : perl-ExtUtils-Install-1.58-299.el7_9.noarch 6/42 验证中 : perl-Try-Tiny-0.12-2.el7.noarch 7/42 验证中 : perl-Parallel-ForkManager-1.18-2.el7.noarch 8/42 验证中 : 1:perl-ExtUtils-ParseXS-3.18-3.el7.noarch 9/42 验证中 : pyparsing-1.5.6-9.el7.noarch 10/42 验证中 : gdbm-devel-1.10-8.el7.x86_64 11/42 验证中 : perl-Mail-Sender-0.8.23-1.el7.noarch 12/42 验证中 : perl-ExtUtils-MakeMaker-6.68-3.el7.noarch 13/42 验证中 : perl-Config-Tiny-2.14-7.el7.noarch 14/42 验证中 : systemtap-sdt-devel-4.0-13.el7.x86_64 15/42 验证中 : perl-Sys-Syslog-0.33-3.el7.x86_64 16/42 验证中 : perl-List-MoreUtils-0.33-9.el7.x86_64 17/42 验证中 : perl-IO-Socket-SSL-1.94-7.el7.noarch 18/42 验证中 : perl-Mozilla-CA-20130114-5.el7.noarch 19/42 验证中 : 4:perl-devel-5.16.3-299.el7_9.x86_64 20/42 验证中 : perl-MIME-Types-1.38-2.el7.noarch 21/42 验证中 : perl-Params-Util-1.07-6.el7.x86_64 22/42 验证中 : perl-Package-Stash-0.34-2.el7.noarch 23/42 验证中 : perl-IO-Socket-IP-0.21-5.el7.noarch 24/42 验证中 : perl-Package-Stash-XS-0.26-3.el7.x86_64 25/42 验证中 : perl-MIME-Lite-3.030-1.el7.noarch 26/42 验证中 : perl-Net-SSLeay-1.55-6.el7.x86_64 27/42 验证中 : perl-Params-Validate-1.08-4.el7.x86_64 28/42 验证中 : perl-Class-Load-0.20-3.el7.noarch 29/42 验证中 : perl-Log-Dispatch-2.41-1.el7.1.noarch 30/42 验证中 : perl-Package-DeprecationManager-0.13-7.el7.noarch 31/42 验证中 : perl-ExtUtils-Manifest-1.61-244.el7.noarch 32/42 验证中 : perl-Net-SMTP-SSL-1.01-13.el7.noarch 33/42 验证中 : perl-Sub-Install-0.926-6.el7.noarch 34/42 验证中 : perl-CPAN-1.9800-299.el7_9.noarch 35/42 验证中 : perl-Module-Implementation-0.06-6.el7.noarch 36/42 验证中 : 1:perl-TimeDate-2.30-2.el7.noarch 37/42 验证中 : 1:perl-Digest-SHA-5.85-4.el7.x86_64 38/42 验证中 : perl-Data-OptList-0.107-9.el7.noarch 39/42 验证中 : perl-Net-LibIDN-0.12-15.el7.x86_64 40/42 验证中 : perl-Digest-1.17-245.el7.noarch 41/42 验证中 : perl-Email-Date-Format-1.002-15.el7.noarch 42/42 已安装:perl-CPAN.noarch 0:1.9800-299.el7_9 perl-Config-Tiny.noarch 0:2.14-7.el7 perl-ExtUtils-MakeMaker.noarch 0:6.68-3.el7 perl-Log-Dispatch.noarch 0:2.41-1.el7.1perl-Parallel-ForkManager.noarch 0:1.18-2.el7作为依赖被安装:gdbm-devel.x86_64 0:1.10-8.el7 libdb-devel.x86_64 0:5.3.21-25.el7 perl-Class-Load.noarch 0:0.20-3.el7 perl-Data-OptList.noarch 0:0.107-9.el7 perl-Digest.noarch 0:1.17-245.el7 perl-Digest-SHA.x86_64 1:5.85-4.el7 perl-Email-Date-Format.noarch 0:1.002-15.el7 perl-ExtUtils-Install.noarch 0:1.58-299.el7_9 perl-ExtUtils-Manifest.noarch 0:1.61-244.el7 perl-ExtUtils-ParseXS.noarch 1:3.18-3.el7 perl-IO-Socket-IP.noarch 0:0.21-5.el7 perl-IO-Socket-SSL.noarch 0:1.94-7.el7 perl-List-MoreUtils.x86_64 0:0.33-9.el7 perl-MIME-Lite.noarch 0:3.030-1.el7 perl-MIME-Types.noarch 0:1.38-2.el7 perl-Mail-Sender.noarch 0:0.8.23-1.el7 perl-Mail-Sendmail.noarch 0:0.79-21.el7 perl-MailTools.noarch 0:2.12-2.el7 perl-Module-Implementation.noarch 0:0.06-6.el7 perl-Module-Runtime.noarch 0:0.013-4.el7 perl-Mozilla-CA.noarch 0:20130114-5.el7 perl-Net-LibIDN.x86_64 0:0.12-15.el7 perl-Net-SMTP-SSL.noarch 0:1.01-13.el7 perl-Net-SSLeay.x86_64 0:1.55-6.el7 perl-Package-DeprecationManager.noarch 0:0.13-7.el7 perl-Package-Stash.noarch 0:0.34-2.el7 perl-Package-Stash-XS.x86_64 0:0.26-3.el7 perl-Params-Util.x86_64 0:1.07-6.el7 perl-Params-Validate.x86_64 0:1.08-4.el7 perl-Sub-Install.noarch 0:0.926-6.el7 perl-Sys-Syslog.x86_64 0:0.33-3.el7 perl-TimeDate.noarch 1:2.30-2.el7 perl-Try-Tiny.noarch 0:0.12-2.el7 perl-devel.x86_64 4:5.16.3-299.el7_9 perl-local-lib.noarch 0:1.008010-4.el7 pyparsing.noarch 0:1.5.6-9.el7 systemtap-sdt-devel.x86_64 0:4.0-13.el7 完毕！
2.3..2 node
所有节点安装node(四台机子都需要）
tar xf mha4mysql-node-0.57.tar.gz
cd mha4mysql-node-0.57
perl Makefile.PL && make && make install
[root@mgt ~]# cd mha4mysql-node-0.57
[root@mgt mha4mysql-node-0.57]# perl Makefile.PL && make && make install
*** Module::AutoInstall version 1.06
*** Checking for Perl dependencies...
[Core Features]
- DBI ...loaded. (1.627)
- DBD::mysql ...loaded. (4.023)
*** Module::AutoInstall configuration finished.
Checking if your kit is complete...
Looks good
Writing Makefile for mha4mysql::node
cp lib/MHA/BinlogManager.pm blib/lib/MHA/BinlogManager.pm
cp lib/MHA/BinlogPosFindManager.pm blib/lib/MHA/BinlogPosFindManager.pm
cp lib/MHA/BinlogPosFinderXid.pm blib/lib/MHA/BinlogPosFinderXid.pm
cp lib/MHA/BinlogHeaderParser.pm blib/lib/MHA/BinlogHeaderParser.pm
cp lib/MHA/BinlogPosFinder.pm blib/lib/MHA/BinlogPosFinder.pm
cp lib/MHA/NodeUtil.pm blib/lib/MHA/NodeUtil.pm
cp lib/MHA/BinlogPosFinderElp.pm blib/lib/MHA/BinlogPosFinderElp.pm
cp lib/MHA/SlaveUtil.pm blib/lib/MHA/SlaveUtil.pm
cp lib/MHA/NodeConst.pm blib/lib/MHA/NodeConst.pm
cp bin/filter_mysqlbinlog blib/script/filter_mysqlbinlog
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/filter_mysqlbinlog
cp bin/apply_diff_relay_logs blib/script/apply_diff_relay_logs
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/apply_diff_relay_logs
cp bin/purge_relay_logs blib/script/purge_relay_logs
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/purge_relay_logs
cp bin/save_binary_logs blib/script/save_binary_logs
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/save_binary_logs
Manifying blib/man1/filter_mysqlbinlog.1
Manifying blib/man1/apply_diff_relay_logs.1
Manifying blib/man1/purge_relay_logs.1
Manifying blib/man1/save_binary_logs.1
Installing /usr/local/share/perl5/MHA/BinlogManager.pm
Installing /usr/local/share/perl5/MHA/BinlogPosFindManager.pm
Installing /usr/local/share/perl5/MHA/BinlogPosFinderXid.pm
Installing /usr/local/share/perl5/MHA/BinlogHeaderParser.pm
Installing /usr/local/share/perl5/MHA/BinlogPosFinder.pm
Installing /usr/local/share/perl5/MHA/NodeUtil.pm
Installing /usr/local/share/perl5/MHA/BinlogPosFinderElp.pm
Installing /usr/local/share/perl5/MHA/SlaveUtil.pm
Installing /usr/local/share/perl5/MHA/NodeConst.pm
Installing /usr/local/share/man/man1/filter_mysqlbinlog.1
Installing /usr/local/share/man/man1/apply_diff_relay_logs.1
Installing /usr/local/share/man/man1/purge_relay_logs.1
Installing /usr/local/share/man/man1/save_binary_logs.1
Installing /usr/local/bin/filter_mysqlbinlog
Installing /usr/local/bin/apply_diff_relay_logs
Installing /usr/local/bin/purge_relay_logs
Installing /usr/local/bin/save_binary_logs
Appending installation info to /usr/lib64/perl5/perllocal.pod
验证
cd /usr/local/bin
看到脚本就OK
2.3.3 manager （只在mgt上装）
tar xf mha4mysql-manager-0.57.tar.gz
cd /root/mha4mysql-manager-0.57
perl Makefile.PL && make && make install
cp sample/scripts/master_ip_failover /usr/local/bin/
cp sample/scripts/master_ip_online_change /usr/local/bin/
[root@mgt ~]# cd mha4mysql-manager-0.57
[root@mgt mha4mysql-manager-0.57]# ls
AUTHORS bin COPYING debian inc lib Makefile.PL MANIFEST META.yml README rpm samples t tests
[root@mgt mha4mysql-manager-0.57]# perl Makefile.PL && make && make install
*** Module::AutoInstall version 1.06
*** Checking for Perl dependencies...
[Core Features]
- DBI ...loaded. (1.627)
- DBD::mysql ...loaded. (4.023)
- Time::HiRes ...loaded. (1.9725)
- Config::Tiny ...loaded. (2.14)
- Log::Dispatch ...loaded. (2.41)
- Parallel::ForkManager ...loaded. (1.18)
- MHA::NodeConst ...loaded. (0.57)
*** Module::AutoInstall configuration finished.
Checking if your kit is complete...
Looks good
Writing Makefile for mha4mysql::manager
cp lib/MHA/ManagerUtil.pm blib/lib/MHA/ManagerUtil.pm
cp lib/MHA/Config.pm blib/lib/MHA/Config.pm
cp lib/MHA/HealthCheck.pm blib/lib/MHA/HealthCheck.pm
cp lib/MHA/ServerManager.pm blib/lib/MHA/ServerManager.pm
cp lib/MHA/ManagerConst.pm blib/lib/MHA/ManagerConst.pm
cp lib/MHA/ManagerAdmin.pm blib/lib/MHA/ManagerAdmin.pm
cp lib/MHA/FileStatus.pm blib/lib/MHA/FileStatus.pm
cp lib/MHA/MasterFailover.pm blib/lib/MHA/MasterFailover.pm
cp lib/MHA/ManagerAdminWrapper.pm blib/lib/MHA/ManagerAdminWrapper.pm
cp lib/MHA/MasterMonitor.pm blib/lib/MHA/MasterMonitor.pm
cp lib/MHA/MasterRotate.pm blib/lib/MHA/MasterRotate.pm
cp lib/MHA/SSHCheck.pm blib/lib/MHA/SSHCheck.pm
cp lib/MHA/Server.pm blib/lib/MHA/Server.pm
cp lib/MHA/DBHelper.pm blib/lib/MHA/DBHelper.pm
cp bin/masterha_stop blib/script/masterha_stop
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_stop
cp bin/masterha_conf_host blib/script/masterha_conf_host
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_conf_host
cp bin/masterha_check_repl blib/script/masterha_check_repl
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_check_repl
cp bin/masterha_check_status blib/script/masterha_check_status
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_check_status
cp bin/masterha_master_monitor blib/script/masterha_master_monitor
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_master_monitor
cp bin/masterha_check_ssh blib/script/masterha_check_ssh
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_check_ssh
cp bin/masterha_master_switch blib/script/masterha_master_switch
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_master_switch
cp bin/masterha_secondary_check blib/script/masterha_secondary_check
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_secondary_check
cp bin/masterha_manager blib/script/masterha_manager
/usr/bin/perl "-Iinc" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/masterha_manager
Manifying blib/man1/masterha_stop.1
Manifying blib/man1/masterha_conf_host.1
Manifying blib/man1/masterha_check_repl.1
Manifying blib/man1/masterha_check_status.1
Manifying blib/man1/masterha_master_monitor.1
Manifying blib/man1/masterha_check_ssh.1
Manifying blib/man1/masterha_master_switch.1
Manifying blib/man1/masterha_secondary_check.1
Manifying blib/man1/masterha_manager.1
Installing /usr/local/share/perl5/MHA/ManagerUtil.pm
Installing /usr/local/share/perl5/MHA/Config.pm
Installing /usr/local/share/perl5/MHA/HealthCheck.pm
Installing /usr/local/share/perl5/MHA/ServerManager.pm
Installing /usr/local/share/perl5/MHA/ManagerConst.pm
Installing /usr/local/share/perl5/MHA/ManagerAdmin.pm
Installing /usr/local/share/perl5/MHA/FileStatus.pm
Installing /usr/local/share/perl5/MHA/MasterFailover.pm
Installing /usr/local/share/perl5/MHA/ManagerAdminWrapper.pm
Installing /usr/local/share/perl5/MHA/MasterMonitor.pm
Installing /usr/local/share/perl5/MHA/MasterRotate.pm
Installing /usr/local/share/perl5/MHA/SSHCheck.pm
Installing /usr/local/share/perl5/MHA/Server.pm
Installing /usr/local/share/perl5/MHA/DBHelper.pm
Installing /usr/local/share/man/man1/masterha_stop.1
Installing /usr/local/share/man/man1/masterha_conf_host.1
Installing /usr/local/share/man/man1/masterha_check_repl.1
Installing /usr/local/share/man/man1/masterha_check_status.1
Installing /usr/local/share/man/man1/masterha_master_monitor.1
Installing /usr/local/share/man/man1/masterha_check_ssh.1
Installing /usr/local/share/man/man1/masterha_master_switch.1
Installing /usr/local/share/man/man1/masterha_secondary_check.1
Installing /usr/local/share/man/man1/masterha_manager.1
Installing /usr/local/bin/masterha_stop
Installing /usr/local/bin/masterha_conf_host
Installing /usr/local/bin/masterha_check_repl
Installing /usr/local/bin/masterha_check_status
Installing /usr/local/bin/masterha_master_monitor
Installing /usr/local/bin/masterha_check_ssh
Installing /usr/local/bin/masterha_master_switch
Installing /usr/local/bin/masterha_secondary_check
Installing /usr/local/bin/masterha_manager
Appending installation info to /usr/lib64/perl5/perllocal.pod
[root@mgt mha4mysql-manager-0.57]# ls
AUTHORS bin blib COPYING debian inc lib Makefile Makefile.PL MANIFEST META.yml pm_to_blib README rpm samples t tests
脚本说明
master_ip_failover 自动切换时 VIP 管理的脚本
#!/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
);
#############################添加内容部分#########################################
my $vip = '192.168.184.200'; #指定vip的地址
my $brdc = '192.168.184.255'; #指定vip的广播地址
my $ifdev = 'ens33'; #指定vip绑定的网卡
my $key = '1'; #指定vip绑定的虚拟网卡序列号
my $ssh_start_vip = "/sbin/ifconfig ens33:$key $vip"; #代表此变量值为ifconfig ens33:1 192.168.184.200
my $ssh_stop_vip = "/sbin/ifconfig ens33:$key down"; #代表此变量值为ifconfig ens33:1 192.168.184.200 down
my $exit_code = 0; #指定退出状态码为0
#my $ssh_start_vip = "/usr/sbin/ip addr add $vip/24 brd $brdc dev $ifdev label $ifdev:$key;/usr/sbin/arping -q -A -c 1 -I $ifdev $vip;iptables -F;";
#my $ssh_stop_vip = "/usr/sbin/ip addr del $vip/24 dev $ifdev label $ifdev:$key";
##################################################################################
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 \"`;
}
## A simple system call that disable the VIP on the old_master
sub stop_vip() {
`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";
}
master_ip_online_change 在线切换时 vip 的管理
power_manager 故障发生后关闭主机的脚本
send_report 因故障切换后发送报警的脚本
配置文件建立
mkdir /etc/masterha
vim /etc/masterha/app1.cnf
[server default]
manager_log=/var/log/masterha/app1/manager.log
manager_workdir=/var/log/masterha/app1
master_binlog_dir=/var/lib/mysql
master_ip_failover_script=/usr/local/bin/master_ip_failover
master_ip_online_change_script=/usr/local/bin/master_ip_online_change
password=123.com
ping_interval=1
remote_workdir=/tmp
repl_password=123.com
repl_user=myslave
secondary_check_script=/usr/local/bin/masterha_secondary_check -s 192.168.156.5 -s 192.168.156.6
shutdown_script=""
ssh_user=root
user=mha[server1]
hostname=192.168.156.4
port=3306[server2]
candidate_master=1
check_repl_delay=0
hostname=192.168.156.5
port=3306[server3]
hostname=192.168.156.6
port=3306
mkdir /var/log/masterha/app1
测试MHA
masterha_check_ssh --conf=/etc/masterha/app1.cnf
masterha_check_repl --conf=/etc/masterha/app1.cnf
[root@mgt ~]# masterha_check_repl --conf=/etc/masterha/app1.cnf
Wed Aug 16 09:33:43 2023 - [warning] Global configuration file /etc/masterha_default.cnf not found. Skipping.
Wed Aug 16 09:33:43 2023 - [info] Reading application default configuration from /etc/masterha/app1.cnf..
Wed Aug 16 09:33:43 2023 - [info] Reading server configuration from /etc/masterha/app1.cnf..
Wed Aug 16 09:33:43 2023 - [info] MHA::MasterMonitor version 0.57.
Wed Aug 16 09:33:45 2023 - [info] GTID failover mode = 0
Wed Aug 16 09:33:45 2023 - [info] Dead Servers:
Wed Aug 16 09:33:45 2023 - [info] Alive Servers:
Wed Aug 16 09:33:45 2023 - [info] 192.168.156.4(192.168.156.4:3306)
Wed Aug 16 09:33:45 2023 - [info] 192.168.156.5(192.168.156.5:3306)
Wed Aug 16 09:33:45 2023 - [info] 192.168.156.6(192.168.156.6:3306)
Wed Aug 16 09:33:45 2023 - [info] Alive Slaves:
Wed Aug 16 09:33:45 2023 - [info] 192.168.156.5(192.168.156.5:3306) Version=5.5.68-MariaDB (oldest major version between slaves) log-bin:enabled
Wed Aug 16 09:33:45 2023 - [info] Replicating from 192.168.156.4(192.168.156.4:3306)
Wed Aug 16 09:33:45 2023 - [info] Primary candidate for the new Master (candidate_master is set)
Wed Aug 16 09:33:45 2023 - [info] 192.168.156.6(192.168.156.6:3306) Version=5.5.68-MariaDB (oldest major version between slaves) log-bin:enabled
Wed Aug 16 09:33:45 2023 - [info] Replicating from 192.168.156.4(192.168.156.4:3306)
Wed Aug 16 09:33:45 2023 - [info] Current Alive Master: 192.168.156.4(192.168.156.4:3306)
Wed Aug 16 09:33:45 2023 - [info] Checking slave configurations..
Wed Aug 16 09:33:45 2023 - [info] read_only=1 is not set on slave 192.168.156.5(192.168.156.5:3306).
Wed Aug 16 09:33:45 2023 - [warning] relay_log_purge=0 is not set on slave 192.168.156.5(192.168.156.5:3306).
Wed Aug 16 09:33:45 2023 - [info] read_only=1 is not set on slave 192.168.156.6(192.168.156.6:3306).
Wed Aug 16 09:33:45 2023 - [warning] relay_log_purge=0 is not set on slave 192.168.156.6(192.168.156.6:3306).
Wed Aug 16 09:33:45 2023 - [info] Checking replication filtering settings..
Wed Aug 16 09:33:45 2023 - [info] binlog_do_db= , binlog_ignore_db=
Wed Aug 16 09:33:45 2023 - [info] Replication filtering check ok.
Wed Aug 16 09:33:45 2023 - [info] GTID (with auto-pos) is not supported
Wed Aug 16 09:33:45 2023 - [info] Starting SSH connection tests..
Wed Aug 16 09:33:49 2023 - [info] All SSH connection tests passed successfully.
Wed Aug 16 09:33:49 2023 - [info] Checking MHA Node version..
Wed Aug 16 09:33:51 2023 - [info] Version check ok.
Wed Aug 16 09:33:51 2023 - [info] Checking SSH publickey authentication settings on the current master..
Wed Aug 16 09:33:51 2023 - [info] HealthCheck: SSH to 192.168.156.4 is reachable.
Wed Aug 16 09:33:52 2023 - [info] Master MHA Node version is 0.57.
Wed Aug 16 09:33:52 2023 - [info] Checking recovery script configurations on 192.168.156.4(192.168.156.4:3306)..
Wed Aug 16 09:33:52 2023 - [info] Executing command: save_binary_logs --command=test --start_pos=4 --binlog_dir=/var/lib/mysql --output_file=/tmp/save_binary_logs_test --manager_version=0.57 --start_file=master-bin.000003
Wed Aug 16 09:33:52 2023 - [info] Connecting to root@192.168.156.4(192.168.156.4:22).. Creating /tmp if not exists.. ok.Checking output directory is accessible or not..ok.Binlog found at /var/lib/mysql, up to master-bin.000003
Wed Aug 16 09:33:53 2023 - [info] Binlog setting check done.
Wed Aug 16 09:33:53 2023 - [info] Checking SSH publickey authentication and checking recovery script configurations on all alive slave servers..
Wed Aug 16 09:33:53 2023 - [info] Executing command : apply_diff_relay_logs --command=test --slave_user='mha' --slave_host=192.168.156.5 --slave_ip=192.168.156.5 --slave_port=3306 --workdir=/tmp --target_version=5.5.68-MariaDB --manager_version=0.57 --relay_log_info=/var/lib/mysql/relay-log.info --relay_dir=/var/lib/mysql/ --slave_pass=xxx
Wed Aug 16 09:33:53 2023 - [info] Connecting to root@192.168.156.5(192.168.156.5:22).. Checking slave recovery environment settings..Opening /var/lib/mysql/relay-log.info ... ok.Relay log found at /var/lib/mysql, up to relay-bin.000002Temporary relay log file is /var/lib/mysql/relay-bin.000002Testing mysql connection and privileges.. done.Testing mysqlbinlog output.. done.Cleaning up test file(s).. done.
Wed Aug 16 09:33:54 2023 - [info] Executing command : apply_diff_relay_logs --command=test --slave_user='mha' --slave_host=192.168.156.6 --slave_ip=192.168.156.6 --slave_port=3306 --workdir=/tmp --target_version=5.5.68-MariaDB --manager_version=0.57 --relay_log_info=/var/lib/mysql/relay-log.info --relay_dir=/var/lib/mysql/ --slave_pass=xxx
Wed Aug 16 09:33:54 2023 - [info] Connecting to root@192.168.156.6(192.168.156.6:22).. Checking slave recovery environment settings..Opening /var/lib/mysql/relay-log.info ... ok.Relay log found at /var/lib/mysql, up to relay-bin.000002Temporary relay log file is /var/lib/mysql/relay-bin.000002Testing mysql connection and privileges.. done.Testing mysqlbinlog output.. done.Cleaning up test file(s).. done.
Wed Aug 16 09:33:55 2023 - [info] Slaves settings check done.
Wed Aug 16 09:33:55 2023 - [info]
192.168.156.4(192.168.156.4:3306) (current master)+--192.168.156.5(192.168.156.5:3306)+--192.168.156.6(192.168.156.6:3306)Wed Aug 16 09:33:55 2023 - [info] Checking replication health on 192.168.156.5..
Wed Aug 16 09:33:55 2023 - [info] ok.
Wed Aug 16 09:33:55 2023 - [info] Checking replication health on 192.168.156.6..
Wed Aug 16 09:33:55 2023 - [info] ok.
Wed Aug 16 09:33:55 2023 - [info] Checking master_ip_failover_script status:
Wed Aug 16 09:33:55 2023 - [info] /usr/local/bin/master_ip_failover --command=status --ssh_user=root --orig_master_host=192.168.156.4 --orig_master_ip=192.168.156.4 --orig_master_port=3306 IN SCRIPT TEST====/sbin/ifconfig ens33:1 down==/sbin/ifconfig ens33:1 192.168.156.100===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
Wed Aug 16 09:33:55 2023 - [warning] shutdown_script is not defined.
Wed Aug 16 09:33:55 2023 - [info] Got exit code 0 (Not master dead).MySQL Replication Health is OK.
启动命令
nohup masterha_manager --conf=/etc/masterha/app1.cnf --remove_dead_master_conf --ignore_last_failover < /dev/null > /var/log/masterha/app1/manager.log 2>&1 &
启动时masterIP异常
需要工程手动配置VIP
2.3.4 测试
停用master的mariadb服务
master
slave1
2.3.5 故障恢复
修改app1.cnf启动配置
添加master主机配置信息
分别在slave上重新指定master主机及binlog日志同步信息
总结
总结来说，MHA是一种简单而有效的高可用解决方案，可以确保MySQL和MariaDB数据库在主节点故障时能够自动切换到可用的从节点上，从而保证数据库的连续性和可用性。
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