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mha安装.txt
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下载网址 https://github.com/yoshinorim/mha4mysql-manager/wiki/Downloads
参考 https://ruiaylin.github.io/2015/03/03/master-ha-install-conf/
http://keithlan.github.io/2016/08/05/mha_practice/
http://www.cnblogs.com/ivictor/p/5686275.html
MHA软件由两部分组成：Manager工具包和Node工具包，具体说明如下：
MHA Manager：
1. masterha_check_ssh：检查MHA的SSH配置状况
2. masterha_check_repl：检查MySQL的复制状况
3. masterha_manager：启动MHA
4. masterha_check_status：检测当前MHA运行状态
5. masterha_master_monitor：检测master是否宕机
6. masterha_master_switch：控制故障转移（自动或手动）
7. masterha_conf_host：添加或删除配置的server信息
8. masterha_stop：关闭MHA
MHA Node:
save_binary_logs：保存或复制master的二进制日志
apply_diff_relay_logs：识别差异的relay log并将差异的event应用到其它slave中
filter_mysqlbinlog：去除不必要的ROLLBACK事件（MHA已不再使用这个工具）
purge_relay_logs：消除中继日志（不会堵塞SQL线程）
另有如下几个脚本需自定义：
1. master_ip_failover：管理VIP
2. master_ip_online_change：
3. masterha_secondary_check：当MHA manager检测到master不可用时，通过masterha_secondary_check脚本来进一步确认，减低误切的风险。
4. send_report：当发生故障切换时，可通过send_report脚本发送告警信息。
####安装节点
tar -zxvf mha4mysql-node-0.56.tar.gz
cd mha4mysql-node-0.56
yum install epel-release
yum install -y perl-devel perl-CPAN perl-DBD-mysql perl-DBI perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager
[root@localhost mha4mysql-node-0.56]# perl Makefile.PL
*** Module::AutoInstall version 1.03
*** Checking for Perl dependencies...
[Core Features]
- DBI ...loaded. (1.627)
- DBD::mysql ...loaded. (4.023)
*** Module::AutoInstall configuration finished.
Writing Makefile for mha4mysql::node
[root@localhost mha4mysql-node-0.56]# make
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/BinlogPosFinderElp.pm blib/lib/MHA/BinlogPosFinderElp.pm
cp lib/MHA/NodeUtil.pm blib/lib/MHA/NodeUtil.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
[root@localhost mha4mysql-node-0.56]# make install
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/BinlogPosFinderElp.pm
Installing /usr/local/share/perl5/MHA/NodeUtil.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
####安装管理,管理需要node包,所以管理节点需要安装上节点包
tar -zxvf mha4mysql-manager-0.56.tar.gz
[root@localhost mha4mysql-manager-0.56]# perl Makefile.PL
*** Module::AutoInstall version 1.03
*** 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. (1.05)
- MHA::NodeConst ...loaded. (0.56)
*** Module::AutoInstall configuration finished.
Writing Makefile for mha4mysql::manager
[root@localhost mha4mysql-manager-0.56]# make
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/ManagerConst.pm blib/lib/MHA/ManagerConst.pm
cp lib/MHA/ServerManager.pm blib/lib/MHA/ServerManager.pm
cp lib/MHA/ManagerAdmin.pm blib/lib/MHA/ManagerAdmin.pm
cp lib/MHA/FileStatus.pm blib/lib/MHA/FileStatus.pm
cp lib/MHA/ManagerAdminWrapper.pm blib/lib/MHA/ManagerAdminWrapper.pm
cp lib/MHA/MasterFailover.pm blib/lib/MHA/MasterFailover.pm
cp lib/MHA/MasterRotate.pm blib/lib/MHA/MasterRotate.pm
cp lib/MHA/MasterMonitor.pm blib/lib/MHA/MasterMonitor.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
[root@localhost mha4mysql-manager-0.56]# make install
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/ManagerConst.pm
Installing /usr/local/share/perl5/MHA/ServerManager.pm
Installing /usr/local/share/perl5/MHA/ManagerAdmin.pm
Installing /usr/local/share/perl5/MHA/FileStatus.pm
Installing /usr/local/share/perl5/MHA/ManagerAdminWrapper.pm
Installing /usr/local/share/perl5/MHA/MasterFailover.pm
Installing /usr/local/share/perl5/MHA/MasterRotate.pm
Installing /usr/local/share/perl5/MHA/MasterMonitor.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
###授权用户
CREATE USER 'mha'@'192.168.100.%' IDENTIFIED BY 'mha123';
GRANT ALL ON *.* TO 'mha'@'192.168.60.%';
###所有主机之间进行ssh授信
####application configuration file
vim /etc/app1.cnf
[server default]
# mysql user and password
user=root
password=mysqlpass
# working directory on the manager
manager_workdir=/var/log/masterha/app1
# manager log file
manager_log=/var/log/masterha/app1/app1.log
# working directory on MySQL servers
remote_workdir=/var/log/masterha/app1
[server1]
hostname=192.168.60.190
[server2]
hostname=192.168.60.191
[server3]
hostname=192.168.60.192
####global configuration file
vim /etc/masterha_default.cnf
[server default]
user=root
password=4GcqLPp0eRRa
ssh_user=root
master_binlog_dir= /home/mysql/data80
remote_workdir=/home/soft
secondary_check_script= masterha_secondary_check -s 192.168.60.191 -s 192.168.60.192
ping_interval=3
master_ip_failover_script=/script/masterha/master_ip_failover
shutdown_script= /script/masterha/power_manager
report_script= /script/masterha/send_master_failover_mail
###基本检测
masterha_check_ssh --global_conf=/etc/masterha_default.cnf --conf=/etc/app1.cnf ###检查ssh授信
[root@localhost scripts]# masterha_check_ssh --global_conf=/etc/masterha_default.cnf --conf=/etc/app1.cnf
Tue Sep 5 20:54:47 2017 - [info] Reading default configuration from /etc/masterha_default.cnf..
Tue Sep 5 20:54:47 2017 - [info] Reading application default configuration from /etc/app1.cnf..
Tue Sep 5 20:54:47 2017 - [info] Reading server configuration from /etc/app1.cnf..
Tue Sep 5 20:54:47 2017 - [info] Starting SSH connection tests..
Tue Sep 5 20:54:48 2017 - [debug]
Tue Sep 5 20:54:47 2017 - [debug] Connecting via SSH from [email protected](192.168.60.190:22) to [email protected](192.168.60.191:22)..
Tue Sep 5 20:54:47 2017 - [debug] ok.
Tue Sep 5 20:54:47 2017 - [debug] Connecting via SSH from [email protected](192.168.60.190:22) to [email protected](192.168.60.192:22)..
Tue Sep 5 20:54:48 2017 - [debug] ok.
Tue Sep 5 20:54:49 2017 - [debug]
Tue Sep 5 20:54:47 2017 - [debug] Connecting via SSH from [email protected](192.168.60.191:22) to [email protected](192.168.60.190:22)..
Tue Sep 5 20:54:48 2017 - [debug] ok.
Tue Sep 5 20:54:48 2017 - [debug] Connecting via SSH from [email protected](192.168.60.191:22) to [email protected](192.168.60.192:22)..
Tue Sep 5 20:54:48 2017 - [debug] ok.
Tue Sep 5 20:54:49 2017 - [debug]
Tue Sep 5 20:54:48 2017 - [debug] Connecting via SSH from [email protected](192.168.60.192:22) to [email protected](192.168.60.190:22)..
Tue Sep 5 20:54:48 2017 - [debug] ok.
Tue Sep 5 20:54:48 2017 - [debug] Connecting via SSH from [email protected](192.168.60.192:22) to [email protected](192.168.60.191:22)..
Tue Sep 5 20:54:49 2017 - [debug] ok.
Tue Sep 5 20:54:49 2017 - [info] All SSH connection tests passed successfully.
masterha_check_repl --conf=/etc/app1.cnf ###检查主从复制
[root@localhost scripts]# masterha_check_repl --conf=/etc/app1.cnf
Tue Sep 5 21:04:04 2017 - [info] Reading default configuration from /etc/masterha_default.cnf..
Tue Sep 5 21:04:04 2017 - [info] Reading application default configuration from /etc/app1.cnf..
Tue Sep 5 21:04:04 2017 - [info] Reading server configuration from /etc/app1.cnf..
Tue Sep 5 21:04:04 2017 - [info] MHA::MasterMonitor version 0.56.
Tue Sep 5 21:04:05 2017 - [info] GTID failover mode = 1
Tue Sep 5 21:04:05 2017 - [info] Dead Servers:
Tue Sep 5 21:04:05 2017 - [info] Alive Servers:
Tue Sep 5 21:04:05 2017 - [info] 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:05 2017 - [info] 192.168.60.191(192.168.60.191:3306)
Tue Sep 5 21:04:05 2017 - [info] 192.168.60.192(192.168.60.192:3306)
Tue Sep 5 21:04:05 2017 - [info] Alive Slaves:
Tue Sep 5 21:04:05 2017 - [info] 192.168.60.191(192.168.60.191:3306) Version=5.7.17-log (oldest major version between slaves) log-bin:enabled
Tue Sep 5 21:04:05 2017 - [info] GTID ON
Tue Sep 5 21:04:05 2017 - [info] Replicating from 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:05 2017 - [info] 192.168.60.192(192.168.60.192:3306) Version=5.7.17-log (oldest major version between slaves) log-bin:enabled
Tue Sep 5 21:04:05 2017 - [info] GTID ON
Tue Sep 5 21:04:05 2017 - [info] Replicating from 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:05 2017 - [info] Current Alive Master: 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:05 2017 - [info] Checking slave configurations..
Tue Sep 5 21:04:05 2017 - [info] Checking replication filtering settings..
Tue Sep 5 21:04:05 2017 - [info] binlog_do_db= , binlog_ignore_db=
Tue Sep 5 21:04:05 2017 - [info] Replication filtering check ok.
Tue Sep 5 21:04:05 2017 - [info] GTID (with auto-pos) is supported. Skipping all SSH and Node package checking.
Tue Sep 5 21:04:05 2017 - [info] Checking SSH publickey authentication settings on the current master..
Tue Sep 5 21:04:05 2017 - [info] HealthCheck: SSH to 192.168.60.190 is reachable.
Tue Sep 5 21:04:05 2017 - [info]
192.168.60.190(192.168.60.190:3306) (current master)
+--192.168.60.191(192.168.60.191:3306)
+--192.168.60.192(192.168.60.192:3306)
Tue Sep 5 21:04:05 2017 - [info] Checking replication health on 192.168.60.191..
Tue Sep 5 21:04:05 2017 - [info] ok.
Tue Sep 5 21:04:05 2017 - [info] Checking replication health on 192.168.60.192..
Tue Sep 5 21:04:05 2017 - [info] ok.
Tue Sep 5 21:04:05 2017 - [info] Checking master_ip_failover_script status:
Tue Sep 5 21:04:05 2017 - [info] /root/master_ip_failover --command=status --ssh_user=root --orig_master_host=192.168.60.190 --orig_master_ip=192.168.60.190 --orig_master_port=3306
IN SCRIPT TEST====/sbin/ifconfig enp0s3:1 down==/sbin/ifconfig enp0s3:1 192.168.60.220/24===
Checking the Status of the script.. OK
Tue Sep 5 21:04:06 2017 - [info] OK.
Tue Sep 5 21:04:06 2017 - [warning] shutdown_script is not defined.
Tue Sep 5 21:04:06 2017 - [info] Got exit code 0 (Not master dead).
MySQL Replication Health is OK.
[root@localhost scripts]# masterha_check_repl --conf=/etc/app1.cnf
Tue Sep 5 21:04:33 2017 - [info] Reading default configuration from /etc/masterha_default.cnf..
Tue Sep 5 21:04:33 2017 - [info] Reading application default configuration from /etc/app1.cnf..
Tue Sep 5 21:04:33 2017 - [info] Reading server configuration from /etc/app1.cnf..
Tue Sep 5 21:04:33 2017 - [info] MHA::MasterMonitor version 0.56.
Tue Sep 5 21:04:34 2017 - [info] GTID failover mode = 1
Tue Sep 5 21:04:34 2017 - [info] Dead Servers:
Tue Sep 5 21:04:34 2017 - [info] Alive Servers:
Tue Sep 5 21:04:34 2017 - [info] 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:34 2017 - [info] 192.168.60.191(192.168.60.191:3306)
Tue Sep 5 21:04:34 2017 - [info] 192.168.60.192(192.168.60.192:3306)
Tue Sep 5 21:04:34 2017 - [info] Alive Slaves:
Tue Sep 5 21:04:34 2017 - [info] 192.168.60.191(192.168.60.191:3306) Version=5.7.17-log (oldest major version between slaves) log-bin:enabled
Tue Sep 5 21:04:34 2017 - [info] GTID ON
Tue Sep 5 21:04:34 2017 - [info] Replicating from 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:34 2017 - [info] 192.168.60.192(192.168.60.192:3306) Version=5.7.17-log (oldest major version between slaves) log-bin:enabled
Tue Sep 5 21:04:34 2017 - [info] GTID ON
Tue Sep 5 21:04:34 2017 - [info] Replicating from 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:34 2017 - [info] Current Alive Master: 192.168.60.190(192.168.60.190:3306)
Tue Sep 5 21:04:34 2017 - [info] Checking slave configurations..
Tue Sep 5 21:04:34 2017 - [info] Checking replication filtering settings..
Tue Sep 5 21:04:34 2017 - [info] binlog_do_db= , binlog_ignore_db=
Tue Sep 5 21:04:34 2017 - [info] Replication filtering check ok.
Tue Sep 5 21:04:34 2017 - [info] GTID (with auto-pos) is supported. Skipping all SSH and Node package checking.
Tue Sep 5 21:04:34 2017 - [info] Checking SSH publickey authentication settings on the current master..
Tue Sep 5 21:04:34 2017 - [info] HealthCheck: SSH to 192.168.60.190 is reachable.
Tue Sep 5 21:04:34 2017 - [info]
192.168.60.190(192.168.60.190:3306) (current master)
+--192.168.60.191(192.168.60.191:3306)
+--192.168.60.192(192.168.60.192:3306)
Tue Sep 5 21:04:34 2017 - [info] Checking replication health on 192.168.60.191..
Tue Sep 5 21:04:34 2017 - [info] ok.
Tue Sep 5 21:04:34 2017 - [info] Checking replication health on 192.168.60.192..
Tue Sep 5 21:04:34 2017 - [info] ok.
Tue Sep 5 21:04:34 2017 - [info] Checking master_ip_failover_script status:
Tue Sep 5 21:04:34 2017 - [info] /root/master_ip_failover --command=status --ssh_user=root --orig_master_host=192.168.60.190 --orig_master_ip=192.168.60.190 --orig_master_port=3306
IN SCRIPT TEST====/sbin/ifconfig enp0s3:1 down==/sbin/ifconfig enp0s3:1 192.168.60.220/24===
Checking the Status of the script.. OK
Tue Sep 5 21:04:39 2017 - [info] OK.
Tue Sep 5 21:04:39 2017 - [warning] shutdown_script is not defined.
Tue Sep 5 21:04:39 2017 - [info] Got exit code 0 (Not master dead).
MySQL Replication Health is OK.
masterha_manager --conf=/etc/app1.cnf