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标题:
mysql mha高可用 虚拟ip问题
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作者:
Ze7czm
时间:
2014-03-11 17:13
标题:
mysql mha高可用 虚拟ip问题
大家好,最近搭建mha测试
测试都通过了。
但是当我想运用虚拟ip是出现了问题。
我的app1.cnf如下
[server default]
# mysql user and password
user=root
password=123456
ssh_user=root
# working directory on the manager
manager_workdir=/var/log/masterha/app1
# working directory on MySQL servers
remote_workdir=/var/log/masterha/app1
ping_interval=1
shutdown_script=""
master_ip_failover_script=/usr/local/bin/master_ip_failover
master_ip_online_change_script=/usr/local/bin/master_ip_online_change_script
report_script=""
[server1]
hostname=192.168.1.42
candidate_master=1
[server2]
hostname=192.168.1.41
candidate_master=1
[server3]
hostname=192.168.1.47
no_master=1
复制代码
当我在app1.cnf中启用master_ip_failover_script=/usr/local/bin/master_ip_failover这句的时候就出问题。
[error][/usr/lib/perl5/vendor_perl/MHA/MasterMonitor.pm, ln315] Error happend on checking configurations. Can't exec "/usr/local/bin/master_ip_failover": Permission denied at /usr/lib/perl5/vendor_perl/MHA/ManagerUtil.pm line 68.
提示的68行内容: return MHA::NodeUtil::system_rc( system($cmd) );
我的master_ip_failover文件脚本代码如下。来自网络,我只修改了虚拟ip。希望有相关经验的朋友不吝赐教!谢谢。
#!/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 = '172.16.21.119/24'; # Virtual IP
my $vip = '192.168.1.250/24'; # Virtual IP
my $key = "1";
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" ) {
# $orig_master_host, $orig_master_ip, $orig_master_port are passed.
# If you manage master ip address at global catalog database,
# invalidate orig_master_ip here.
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" ) {
# all arguments are passed.
# If you manage master ip address at global catalog database,
# activate new_master_ip here.
# You can also grant write access (create user, set read_only=0, etc) here.
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";
`ssh $ssh_user\@cluster1 \" $ssh_start_vip \"`;
exit 0;
}
else {
&usage();
exit 1;
}
}
# A simple system call that enable the VIP on the new master
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";
}
复制代码
作者:
Ze7czm
时间:
2014-03-11 17:54
解决了。呵呵谢谢qq群里的朋友提醒,考进来的脚本要赋权在usr/local/bin 下执行chmod +x *
另外如果出现下面的问题
?#!/usr/bin/env: No such file or directory (2011-05-10 14:03:25)转载▼
这个问题是由于源码格式编码错误;notepad++里面,点击菜单 格式 - 以UTF-8无BOM格式编码, 保存重新编译运行即可
作者:
pxf520
时间:
2014-03-12 15:01
本帖最后由 pxf520 于 2014-03-12 15:05 编辑
不考虑arp问题 ,小心会死得很惨的。
作者:
qingheliu
时间:
2014-03-13 10:25
提示:
作者被禁止或删除 内容自动屏蔽
作者:
Ze7czm
时间:
2014-03-17 10:02
本地测试都搞定了。。可惜服务器不许连接外网,,,依赖包问题啊纠结死了,按照yum命令下载提示的rpm文件,我单独下了相关rpm包,可惜安装时还是提示各种依赖。。不断尝试中不知道是否可行。
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