MHA環境搭建【4】manager相關依賴的解決

mha的manager 結點依賴與mha-node軟件包、所以在安裝mha-manager之前要把mha-node安裝上去；再者mha-manger還依賴於perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager perl-Time-HiRes

【1】安裝perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager perl-Time-HiRes

yum -y install perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager perl-Time-HiRes

【2】編譯安裝mha-manager

unzip mha4mysql-manager-master.zip
cd mha4mysql-manager-master
perl Makefile.PL 
make
make install

【3】mha-manger 安裝包下面samples/scripts/目錄下有幾個腳本文件，如果用這些工具的話可以用cp * /usr/local/bin/

cd /samples/scripts
cp * /usr/local/bin/

【4】創建mha-manger的工作目錄

mkdir /var/log/masterha
touch /var/log/masterha/app.cnf   # 配置文件

【5】配置mha-manger

[server default]
manager_workdir=/var/log/masterha/
manager_log=/var/log/masterha/manager.log
remote_workdir=/tmp
master_binlog_dir=/usr/local/mysql/data/
master_ip_failover_script=/usr/local/bin/master_ip_failover
master_ip_online_change_script= /usr/local/bin/master_ip_online_change
report_script=/usr/local/bin/send_report
shutdown_script=""
ping_interval=1
user=mha
password=123456
repl_user=repl
repl_password=123456
ssh_user=root

[server1]
hostname=192.168.80.130
port=3306
candidate_master=1
check_repl_delay=0

[server2]
hostname=192.168.80.131
port=3306
candidate_master=1
check_repl_delay=0

[server3]
hostname=192.168.80.132
port=3306

【6】根據自己的環境修復master_ip_failover；我這里的如下

#!/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 = '192.168.80.100/24';
my $key = '0';
my $ssh_start_vip = "/sbin/ifconfig eth0:$key $vip";
my $ssh_stop_vip = "/sbin/ifconfig eth0:$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";
}

只要改一下vip 和ifconfig 和相關網卡信息就行了