下面给各位介绍一下MHA实现mysql5.6主从切换安装配置教程,希望此教程能帮助到大家.
基于这里的master/slave复制,我们这里介绍下MHA软件的安装与测试.
一、安装MHA软件:
- yum -y install perl-DBD-MySQL perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager
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- wget http://mysql-master-ha.googlecode.com/files/mha4mysql-node-0.52-0.noarch.rpm
- wget https://mysql-master-ha.googlecode.com/files/mha4mysql-manager-0.52-0.noarch.rpm
- wget https://mysql-master-ha.googlecode.com/files/mha4mysql-manager-0.52.tar.gz
rpm包安装:
- rpm -ivh mha4mysql-manager-0.52-0.noarch.rpm
- rpm -ivh mha4mysql-node-0.52-0.noarch.rpm
源码包安装(我这里采用源码包安装,manager安装在slave上):
- tar zxvf mha4mysql-manager-0.52.tar.gz
- cd mha4mysql-manager-0.52
- perl Makefile.PL
- make
- make install
二、配置基本环境:
1、配置master和slave之间可以ssh无密码登陆(这里略)
2、保证mha manager能登陆主从服务器的mysql
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- grant all privileges on *.* to 'root'@'10.1.1.234' identified by 'rootpasswd';
- flush privileges;
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-
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- grant all privileges on *.* to 'root'@'10.1.1.231' identified by 'rootpasswd';
- flush privileges;
三、修改mha的manager配置文件:
- [root@localhost mha4mysql-manager-0.52]#mkdir /etc/masterha
- [root@localhost mha4mysql-manager-0.52]#mkdir -p /masterha/app1
- [root@localhost mha4mysql-manager-0.52]#cp samples/conf/* /etc/masterha/
- [root@localhost mha4mysql-manager-0.52]#cat /etc/masterha/app1.cnf
- [root@localhost mha4mysql-manager-0.52]#mkdir /etc/masterha
- [root@localhost mha4mysql-manager-0.52]#mkdir -p /masterha/app1
- [root@localhost mha4mysql-manager-0.52]#cp samples/conf/* /etc/masterha/
- [root@localhost mha4mysql-manager-0.52]#cat /etc/masterha/app1.cnf
-
- [server default]
- manager_workdir=/masterha/app1/
- manager_log=/masterha/app1/manager.log
- user=root
- password=d3n0v0
- ssh_user=root
- repl_user=jpsync
- repl_password=jpsyncpass2014la
- ping_interval=1
- shutdown_script=""
- #master_ip_failover_script="/usr/local/bin/master_ip_failover"
- master_ip_online_change_script=""
- report_script=""
-
- [server1]
- hostname=10.1.1.231
- port=63306
- master_binlog_dir="/state/partition1/mysql/data"
- candidate_master=1
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- [server2]
- hostname=10.1.1.234
- port=63306
- master_binlog_dir="/state/partition1/mysql/data"
- candidate_master=1
四、检测配置:检查ssh:
- [root@localhost masterha]# masterha_check_ssh
- Fri Sep 12 15:23:25 2014 - [info] Reading default configuratoins from /etc/masterha_default.cnf..
- Fri Sep 12 15:23:25 2014 - [info] Reading application default configurations from /etc/masterha/app1.cnf..
- Fri Sep 12 15:23:25 2014 - [info] Reading server configurations from /etc/masterha/app1.cnf..
- Fri Sep 12 15:23:25 2014 - [info] Starting SSH connection tests..
- Fri Sep 12 15:23:32 2014 - [debug]
- Fri Sep 12 15:23:25 2014 - [debug] Connecting via SSH from root@10.1.1.231(10.1.1.231) to root@10.1.1.234(10.1.1.234)..
- Warning: untrusted X11 forwarding setup failed: xauth key data not generated
- Warning: No xauth data; using fake authentication data for X11 forwarding.
- Fri Sep 12 15:23:32 2014 - [debug] ok.
- Fri Sep 12 15:23:38 2014 - [debug]
- Fri Sep 12 15:23:26 2014 - [debug] Connecting via SSH from root@10.1.1.234(10.1.1.234) to root@10.1.1.231(10.1.1.231)..
- Warning: untrusted X11 forwarding setup failed: xauth key data not generated
- Warning: No xauth data; using fake authentication data for X11 forwarding.
- Warning: untrusted X11 forwarding setup failed: xauth key data not generated
- Warning: No xauth data; using fake authentication data for X11 forwarding.
- Fri Sep 12 15:23:38 2014 - [debug] ok.
- Fri Sep 12 15:23:38 2014 - [info] All SSH connection tests passed successfully.
检查mha启动状态:
- [root@localhost masterha]# masterha_check_status
- app1 (pid:11444) is running(0:PING_OK), master:10.1.1.231
检查主从复制状态:
- [root@compute-0-52 masterha]# masterha_check_repl
- Fri Sep 12 16:15:12 2014 - [info] Reading default configuratoins from /etc/masterha_default.cnf..
- Fri Sep 12 16:15:12 2014 - [info] Reading application default configurations from /etc/masterha/app1.cnf..
- Fri Sep 12 16:15:12 2014 - [info] Reading server configurations from /etc/masterha/app1.cnf..
- Fri Sep 12 16:15:12 2014 - [info] MHA::MasterMonitor version 0.52.
- Fri Sep 12 16:15:12 2014 - [info] Dead Servers:
- Fri Sep 12 16:15:12 2014 - [info] Alive Servers:
- Fri Sep 12 16:15:12 2014 - [info] 10.1.1.231(10.1.1.231:3306)
- Fri Sep 12 16:15:12 2014 - [info] 10.1.1.234(10.1.1.234:3306)
- Fri Sep 12 16:15:12 2014 - [info] Alive Slaves:
- Fri Sep 12 16:15:12 2014 - [info] 10.1.1.234(10.1.1.234:3306) Version=5.6.13-log (oldest major version between slaves) log-bin:enabled
- Fri Sep 12 16:15:12 2014 - [info] Replicating from 10.1.1.231(10.1.1.231:3306)
- Fri Sep 12 16:15:12 2014 - [info] Primary candidate for the new Master (candidate_master is set)
- Fri Sep 12 16:15:12 2014 - [info] Current Alive Master: 10.1.1.231(10.1.1.231:3306)
- Fri Sep 12 16:15:12 2014 - [info] Checking slave configurations..
- Fri Sep 12 16:15:12 2014 - <div class="warning shortcodestyle"></div> relay_log_purge=0 is not set on slave 10.1.1.234(10.1.1.234:3306).
- Fri Sep 12 16:15:12 2014 - [info] Checking replication filtering settings..
- Fri Sep 12 16:15:12 2014 - [info] binlog_do_db= denovo_ng, binlog_ignore_db= information_schema,mysql,test
- Fri Sep 12 16:15:12 2014 - [info] Replication filtering check ok.
- Fri Sep 12 16:15:12 2014 - [info] Starting SSH connection tests..
- Fri Sep 12 16:15:25 2014 - [info] All SSH connection tests passed successfully.
- Fri Sep 12 16:15:25 2014 - [info] Checking MHA Node version..
- Fri Sep 12 16:15:32 2014 - [info] Version check ok.
- Fri Sep 12 16:15:32 2014 - [info] Checking SSH publickey authentication and checking recovery script configurations on the current master..
- Fri Sep 12 16:15:38 2014 - [info] Executing command: save_binary_logs
- Fri Sep 12 16:15:38 2014 - [info] Connecting to root@10.1.1.231(10.1.1.231)..
- Warning: untrusted X11 forwarding setup failed: xauth key data not generated
- Warning: No xauth data; using fake authentication data for X11 forwarding.
- Creating /var/tmp if not exists.. ok.
- Checking output directory is accessible or not..
- ok.
- Binlog found at /state/partition1/mysql/data, up to mysql-master-bin.000004
- Fri Sep 12 16:15:45 2014 - [info] Master setting check done.
- Fri Sep 12 16:15:45 2014 - [info] Checking SSH publickey authentication and checking recovery script configurations on all alive slave servers..
- Fri Sep 12 16:15:45 2014 - [info] Executing command : apply_diff_relay_logs
- Fri Sep 12 16:15:45 2014 - [info] Connecting to root@10.1.1.234(10.1.1.234)..
- Warning: untrusted X11 forwarding setup failed: xauth key data not generated
- Warning: No xauth data; using fake authentication data for X11 forwarding.
- Checking slave recovery environment settings..
- Opening /state/partition1/mysql/data/relay-log.info ... ok.
- Relay log found at /state/partition1/mysql/data, up to compute-0-52-relay-bin.000007
- Temporary relay log file is /state/partition1/mysql/data/compute-0-52-relay-bin.000007
- Testing mysql connection and privileges..Warning: Using a password on the command line interface can be insecure.
- mysql: Unknown OS character set 'ISO-8859-15'.
- mysql: Switching to the default character set 'latin1'.
- done.
- Testing mysqlbinlog output.. done.
- Cleaning up test file(s).. done.
- Fri Sep 12 16:15:51 2014 - [info] Slaves settings check done.
- Fri Sep 12 16:15:51 2014 - [info]
- 10.1.1.231 (current master)
- +
-
- Fri Sep 12 16:15:51 2014 - [info] Checking replication health on 10.1.1.234..
- Fri Sep 12 16:15:51 2014 - [info] ok.
- Fri Sep 12 16:15:51 2014 - <div class="warning shortcodestyle"></div> master_ip_failover_script is not defined.
- Fri Sep 12 16:15:51 2014 - <div class="warning shortcodestyle"></div> shutdown_script is not defined.
- Fri Sep 12 16:15:51 2014 - [info] Got exit code 0 (Not master dead).
-
- MySQL Replication Health is OK
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